OpenWrt – Rev 4

Subversion Repositories:
Rev:
--- a/Documentation/devicetree/bindings/net/stmmac.txt
+++ b/Documentation/devicetree/bindings/net/stmmac.txt
@@ -1,7 +1,7 @@
 * STMicroelectronics 10/100/1000 Ethernet driver (GMAC)
 
 Required properties:
-- compatible: Should be "snps,dwmac-<ip_version>" "snps,dwmac"
+- compatible: Should be "snps,dwmac-<ip_version>", "snps,dwmac"
        For backwards compatibility: "st,spear600-gmac" is also supported.
 - reg: Address and length of the register set for the device
 - interrupt-parent: Should be the phandle for the interrupt controller
@@ -34,7 +34,13 @@ Optional properties:
   platforms.
 - tx-fifo-depth: See ethernet.txt file in the same directory
 - rx-fifo-depth: See ethernet.txt file in the same directory
-- snps,pbl             Programmable Burst Length
+- snps,pbl             Programmable Burst Length (tx and rx)
+- snps,txpbl           Tx Programmable Burst Length. Only for GMAC and newer.
+                       If set, DMA tx will use this value rather than snps,pbl.
+- snps,rxpbl           Rx Programmable Burst Length. Only for GMAC and newer.
+                       If set, DMA rx will use this value rather than snps,pbl.
+- snps,no-pbl-x8       Don't multiply the pbl/txpbl/rxpbl values by 8.
+                       For core rev < 3.50, don't multiply the values by 4.
 - snps,aal             Address-Aligned Beats
 - snps,fixed-burst     Program the DMA to use the fixed burst mode
 - snps,mixed-burst     Program the DMA to use the mixed burst mode
@@ -50,6 +56,8 @@ Optional properties:
 - snps,ps-speed: port selection speed that can be passed to the core when
                 PCS is supported. For example, this is used in case of SGMII
                 and MAC2MAC connection.
+- snps,tso: this enables the TSO feature otherwise it will be managed by
+                MAC HW capability register. Only for GMAC4 and newer.
 - AXI BUS Mode parameters: below the list of all the parameters to program the
                           AXI register inside the DMA module:
        - snps,lpi_en: enable Low Power Interface
@@ -62,8 +70,6 @@ Optional properties:
        - snps,fb: fixed-burst
        - snps,mb: mixed-burst
        - snps,rb: rebuild INCRx Burst
-       - snps,tso: this enables the TSO feature otherwise it will be managed by
-           MAC HW capability register.
 - mdio: with compatible = "snps,dwmac-mdio", create and register mdio bus.
 
 Examples:
--- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
+++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
@@ -69,6 +69,17 @@ config DWMAC_MESON
          the stmmac device driver. This driver is used for Meson6,
          Meson8, Meson8b and GXBB SoCs.
 
+config DWMAC_OXNAS
+       tristate "Oxford Semiconductor OXNAS dwmac support"
+       default ARCH_OXNAS
+       depends on OF && COMMON_CLK && (ARCH_OXNAS || COMPILE_TEST)
+       select MFD_SYSCON
+       help
+         Support for Ethernet controller on Oxford Semiconductor OXNAS SoCs.
+
+         This selects the Oxford Semiconductor OXNASSoC glue layer support for
+         the stmmac device driver. This driver is used for OX820.
+
 config DWMAC_ROCKCHIP
        tristate "Rockchip dwmac support"
        default ARCH_ROCKCHIP
--- a/drivers/net/ethernet/stmicro/stmmac/Makefile
+++ b/drivers/net/ethernet/stmicro/stmmac/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_STMMAC_PLATFORM) += stmmac-
 obj-$(CONFIG_DWMAC_IPQ806X)    += dwmac-ipq806x.o
 obj-$(CONFIG_DWMAC_LPC18XX)    += dwmac-lpc18xx.o
 obj-$(CONFIG_DWMAC_MESON)      += dwmac-meson.o dwmac-meson8b.o
+obj-$(CONFIG_DWMAC_OXNAS)      += dwmac-oxnas.o
 obj-$(CONFIG_DWMAC_ROCKCHIP)   += dwmac-rk.o
 obj-$(CONFIG_DWMAC_SOCFPGA)    += dwmac-altr-socfpga.o
 obj-$(CONFIG_DWMAC_STI)                += dwmac-sti.o
--- a/drivers/net/ethernet/stmicro/stmmac/chain_mode.c
+++ b/drivers/net/ethernet/stmicro/stmmac/chain_mode.c
@@ -34,7 +34,7 @@ static int stmmac_jumbo_frm(void *p, str
        unsigned int entry = priv->cur_tx;
        struct dma_desc *desc = priv->dma_tx + entry;
        unsigned int nopaged_len = skb_headlen(skb);
-       unsigned int bmax;
+       unsigned int bmax, des2;
        unsigned int i = 1, len;
 
        if (priv->plat->enh_desc)
@@ -44,11 +44,12 @@ static int stmmac_jumbo_frm(void *p, str
 
        len = nopaged_len - bmax;
 
-       desc->des2 = dma_map_single(priv->device, skb->data,
-                                   bmax, DMA_TO_DEVICE);
-       if (dma_mapping_error(priv->device, desc->des2))
+       des2 = dma_map_single(priv->device, skb->data,
+                             bmax, DMA_TO_DEVICE);
+       desc->des2 = cpu_to_le32(des2);
+       if (dma_mapping_error(priv->device, des2))
                return -1;
-       priv->tx_skbuff_dma[entry].buf = desc->des2;
+       priv->tx_skbuff_dma[entry].buf = des2;
        priv->tx_skbuff_dma[entry].len = bmax;
        /* do not close the descriptor and do not set own bit */
        priv->hw->desc->prepare_tx_desc(desc, 1, bmax, csum, STMMAC_CHAIN_MODE,
@@ -60,12 +61,13 @@ static int stmmac_jumbo_frm(void *p, str
                desc = priv->dma_tx + entry;
 
                if (len > bmax) {
-                       desc->des2 = dma_map_single(priv->device,
-                                                   (skb->data + bmax * i),
-                                                   bmax, DMA_TO_DEVICE);
-                       if (dma_mapping_error(priv->device, desc->des2))
+                       des2 = dma_map_single(priv->device,
+                                             (skb->data + bmax * i),
+                                             bmax, DMA_TO_DEVICE);
+                       desc->des2 = cpu_to_le32(des2);
+                       if (dma_mapping_error(priv->device, des2))
                                return -1;
-                       priv->tx_skbuff_dma[entry].buf = desc->des2;
+                       priv->tx_skbuff_dma[entry].buf = des2;
                        priv->tx_skbuff_dma[entry].len = bmax;
                        priv->hw->desc->prepare_tx_desc(desc, 0, bmax, csum,
                                                        STMMAC_CHAIN_MODE, 1,
@@ -73,12 +75,13 @@ static int stmmac_jumbo_frm(void *p, str
                        len -= bmax;
                        i++;
                } else {
-                       desc->des2 = dma_map_single(priv->device,
-                                                   (skb->data + bmax * i), len,
-                                                   DMA_TO_DEVICE);
-                       if (dma_mapping_error(priv->device, desc->des2))
+                       des2 = dma_map_single(priv->device,
+                                             (skb->data + bmax * i), len,
+                                             DMA_TO_DEVICE);
+                       desc->des2 = cpu_to_le32(des2);
+                       if (dma_mapping_error(priv->device, des2))
                                return -1;
-                       priv->tx_skbuff_dma[entry].buf = desc->des2;
+                       priv->tx_skbuff_dma[entry].buf = des2;
                        priv->tx_skbuff_dma[entry].len = len;
                        /* last descriptor can be set now */
                        priv->hw->desc->prepare_tx_desc(desc, 0, len, csum,
@@ -119,19 +122,19 @@ static void stmmac_init_dma_chain(void *
                struct dma_extended_desc *p = (struct dma_extended_desc *)des;
                for (i = 0; i < (size - 1); i++) {
                        dma_phy += sizeof(struct dma_extended_desc);
-                       p->basic.des3 = (unsigned int)dma_phy;
+                       p->basic.des3 = cpu_to_le32((unsigned int)dma_phy);
                        p++;
                }
-               p->basic.des3 = (unsigned int)phy_addr;
+               p->basic.des3 = cpu_to_le32((unsigned int)phy_addr);
 
        } else {
                struct dma_desc *p = (struct dma_desc *)des;
                for (i = 0; i < (size - 1); i++) {
                        dma_phy += sizeof(struct dma_desc);
-                       p->des3 = (unsigned int)dma_phy;
+                       p->des3 = cpu_to_le32((unsigned int)dma_phy);
                        p++;
                }
-               p->des3 = (unsigned int)phy_addr;
+               p->des3 = cpu_to_le32((unsigned int)phy_addr);
        }
 }
 
@@ -144,10 +147,10 @@ static void stmmac_refill_desc3(void *pr
                 * 1588-2002 time stamping is enabled, hence reinitialize it
                 * to keep explicit chaining in the descriptor.
                 */
-               p->des3 = (unsigned int)(priv->dma_rx_phy +
-                                        (((priv->dirty_rx) + 1) %
-                                         DMA_RX_SIZE) *
-                                        sizeof(struct dma_desc));
+               p->des3 = cpu_to_le32((unsigned int)(priv->dma_rx_phy +
+                                     (((priv->dirty_rx) + 1) %
+                                      DMA_RX_SIZE) *
+                                     sizeof(struct dma_desc)));
 }
 
 static void stmmac_clean_desc3(void *priv_ptr, struct dma_desc *p)
@@ -161,9 +164,9 @@ static void stmmac_clean_desc3(void *pri
                 * 1588-2002 time stamping is enabled, hence reinitialize it
                 * to keep explicit chaining in the descriptor.
                 */
-               p->des3 = (unsigned int)((priv->dma_tx_phy +
-                                         ((priv->dirty_tx + 1) % DMA_TX_SIZE))
-                                         * sizeof(struct dma_desc));
+               p->des3 = cpu_to_le32((unsigned int)((priv->dma_tx_phy +
+                                     ((priv->dirty_tx + 1) % DMA_TX_SIZE))
+                                     * sizeof(struct dma_desc)));
 }
 
 const struct stmmac_mode_ops chain_mode_ops = {
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -44,6 +44,7 @@
 #define        DWMAC_CORE_4_00 0x40
 #define STMMAC_CHAN0   0        /* Always supported and default for all chips */
 
+/* These need to be power of two, and >= 4 */
 #define DMA_TX_SIZE 512
 #define DMA_RX_SIZE 512
 #define STMMAC_GET_ENTRY(x, size)      ((x + 1) & (size - 1))
@@ -411,8 +412,8 @@ extern const struct stmmac_desc_ops ndes
 struct stmmac_dma_ops {
        /* DMA core initialization */
        int (*reset)(void __iomem *ioaddr);
-       void (*init)(void __iomem *ioaddr, int pbl, int fb, int mb,
-                    int aal, u32 dma_tx, u32 dma_rx, int atds);
+       void (*init)(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg,
+                    u32 dma_tx, u32 dma_rx, int atds);
        /* Configure the AXI Bus Mode Register */
        void (*axi)(void __iomem *ioaddr, struct stmmac_axi *axi);
        /* Dump DMA registers */
@@ -506,6 +507,12 @@ struct mac_link {
 struct mii_regs {
        unsigned int addr;      /* MII Address */
        unsigned int data;      /* MII Data */
+       unsigned int addr_shift;        /* MII address shift */
+       unsigned int reg_shift;         /* MII reg shift */
+       unsigned int addr_mask;         /* MII address mask */
+       unsigned int reg_mask;          /* MII reg mask */
+       unsigned int clk_csr_shift;
+       unsigned int clk_csr_mask;
 };
 
 /* Helpers to manage the descriptors for chain and ring modes */
--- a/drivers/net/ethernet/stmicro/stmmac/descs.h
+++ b/drivers/net/ethernet/stmicro/stmmac/descs.h
@@ -87,7 +87,7 @@
 #define        TDES0_ERROR_SUMMARY             BIT(15)
 #define        TDES0_IP_HEADER_ERROR           BIT(16)
 #define        TDES0_TIME_STAMP_STATUS         BIT(17)
-#define        TDES0_OWN                       BIT(31)
+#define        TDES0_OWN                       ((u32)BIT(31))  /* silence sparse */
 /* TDES1 */
 #define        TDES1_BUFFER1_SIZE_MASK         GENMASK(10, 0)
 #define        TDES1_BUFFER2_SIZE_MASK         GENMASK(21, 11)
@@ -130,7 +130,7 @@
 #define        ETDES0_FIRST_SEGMENT            BIT(28)
 #define        ETDES0_LAST_SEGMENT             BIT(29)
 #define        ETDES0_INTERRUPT                BIT(30)
-#define        ETDES0_OWN                      BIT(31)
+#define        ETDES0_OWN                      ((u32)BIT(31))  /* silence sparse */
 /* TDES1 */
 #define        ETDES1_BUFFER1_SIZE_MASK        GENMASK(12, 0)
 #define        ETDES1_BUFFER2_SIZE_MASK        GENMASK(28, 16)
@@ -170,19 +170,19 @@
 
 /* Basic descriptor structure for normal and alternate descriptors */
 struct dma_desc {
-       unsigned int des0;
-       unsigned int des1;
-       unsigned int des2;
-       unsigned int des3;
+       __le32 des0;
+       __le32 des1;
+       __le32 des2;
+       __le32 des3;
 };
 
 /* Extended descriptor structure (e.g. >= databook 3.50a) */
 struct dma_extended_desc {
        struct dma_desc basic;  /* Basic descriptors */
-       unsigned int des4;      /* Extended Status */
-       unsigned int des5;      /* Reserved */
-       unsigned int des6;      /* Tx/Rx Timestamp Low */
-       unsigned int des7;      /* Tx/Rx Timestamp High */
+       __le32 des4;    /* Extended Status */
+       __le32 des5;    /* Reserved */
+       __le32 des6;    /* Tx/Rx Timestamp Low */
+       __le32 des7;    /* Tx/Rx Timestamp High */
 };
 
 /* Transmit checksum insertion control */
--- a/drivers/net/ethernet/stmicro/stmmac/descs_com.h
+++ b/drivers/net/ethernet/stmicro/stmmac/descs_com.h
@@ -35,47 +35,50 @@
 /* Enhanced descriptors */
 static inline void ehn_desc_rx_set_on_ring(struct dma_desc *p, int end)
 {
-       p->des1 |= ((BUF_SIZE_8KiB - 1) << ERDES1_BUFFER2_SIZE_SHIFT)
-                  & ERDES1_BUFFER2_SIZE_MASK;
+       p->des1 |= cpu_to_le32(((BUF_SIZE_8KiB - 1)
+                       << ERDES1_BUFFER2_SIZE_SHIFT)
+                  & ERDES1_BUFFER2_SIZE_MASK);
 
        if (end)
-               p->des1 |= ERDES1_END_RING;
+               p->des1 |= cpu_to_le32(ERDES1_END_RING);
 }
 
 static inline void enh_desc_end_tx_desc_on_ring(struct dma_desc *p, int end)
 {
        if (end)
-               p->des0 |= ETDES0_END_RING;
+               p->des0 |= cpu_to_le32(ETDES0_END_RING);
        else
-               p->des0 &= ~ETDES0_END_RING;
+               p->des0 &= cpu_to_le32(~ETDES0_END_RING);
 }
 
 static inline void enh_set_tx_desc_len_on_ring(struct dma_desc *p, int len)
 {
        if (unlikely(len > BUF_SIZE_4KiB)) {
-               p->des1 |= (((len - BUF_SIZE_4KiB) << ETDES1_BUFFER2_SIZE_SHIFT)
+               p->des1 |= cpu_to_le32((((len - BUF_SIZE_4KiB)
+                                       << ETDES1_BUFFER2_SIZE_SHIFT)
                            & ETDES1_BUFFER2_SIZE_MASK) | (BUF_SIZE_4KiB
-                           & ETDES1_BUFFER1_SIZE_MASK);
+                           & ETDES1_BUFFER1_SIZE_MASK));
        } else
-               p->des1 |= (len & ETDES1_BUFFER1_SIZE_MASK);
+               p->des1 |= cpu_to_le32((len & ETDES1_BUFFER1_SIZE_MASK));
 }
 
 /* Normal descriptors */
 static inline void ndesc_rx_set_on_ring(struct dma_desc *p, int end)
 {
-       p->des1 |= ((BUF_SIZE_2KiB - 1) << RDES1_BUFFER2_SIZE_SHIFT)
-                   & RDES1_BUFFER2_SIZE_MASK;
+       p->des1 |= cpu_to_le32(((BUF_SIZE_2KiB - 1)
+                               << RDES1_BUFFER2_SIZE_SHIFT)
+                   & RDES1_BUFFER2_SIZE_MASK);
 
        if (end)
-               p->des1 |= RDES1_END_RING;
+               p->des1 |= cpu_to_le32(RDES1_END_RING);
 }
 
 static inline void ndesc_end_tx_desc_on_ring(struct dma_desc *p, int end)
 {
        if (end)
-               p->des1 |= TDES1_END_RING;
+               p->des1 |= cpu_to_le32(TDES1_END_RING);
        else
-               p->des1 &= ~TDES1_END_RING;
+               p->des1 &= cpu_to_le32(~TDES1_END_RING);
 }
 
 static inline void norm_set_tx_desc_len_on_ring(struct dma_desc *p, int len)
@@ -83,10 +86,11 @@ static inline void norm_set_tx_desc_len_
        if (unlikely(len > BUF_SIZE_2KiB)) {
                unsigned int buffer1 = (BUF_SIZE_2KiB - 1)
                                        & TDES1_BUFFER1_SIZE_MASK;
-               p->des1 |= ((((len - buffer1) << TDES1_BUFFER2_SIZE_SHIFT)
-                           & TDES1_BUFFER2_SIZE_MASK) | buffer1);
+               p->des1 |= cpu_to_le32((((len - buffer1)
+                                       << TDES1_BUFFER2_SIZE_SHIFT)
+                               & TDES1_BUFFER2_SIZE_MASK) | buffer1);
        } else
-               p->des1 |= (len & TDES1_BUFFER1_SIZE_MASK);
+               p->des1 |= cpu_to_le32((len & TDES1_BUFFER1_SIZE_MASK));
 }
 
 /* Specific functions used for Chain mode */
@@ -94,32 +98,32 @@ static inline void norm_set_tx_desc_len_
 /* Enhanced descriptors */
 static inline void ehn_desc_rx_set_on_chain(struct dma_desc *p)
 {
-       p->des1 |= ERDES1_SECOND_ADDRESS_CHAINED;
+       p->des1 |= cpu_to_le32(ERDES1_SECOND_ADDRESS_CHAINED);
 }
 
 static inline void enh_desc_end_tx_desc_on_chain(struct dma_desc *p)
 {
-       p->des0 |= ETDES0_SECOND_ADDRESS_CHAINED;
+       p->des0 |= cpu_to_le32(ETDES0_SECOND_ADDRESS_CHAINED);
 }
 
 static inline void enh_set_tx_desc_len_on_chain(struct dma_desc *p, int len)
 {
-       p->des1 |= (len & ETDES1_BUFFER1_SIZE_MASK);
+       p->des1 |= cpu_to_le32(len & ETDES1_BUFFER1_SIZE_MASK);
 }
 
 /* Normal descriptors */
 static inline void ndesc_rx_set_on_chain(struct dma_desc *p, int end)
 {
-       p->des1 |= RDES1_SECOND_ADDRESS_CHAINED;
+       p->des1 |= cpu_to_le32(RDES1_SECOND_ADDRESS_CHAINED);
 }
 
 static inline void ndesc_tx_set_on_chain(struct dma_desc *p)
 {
-       p->des1 |= TDES1_SECOND_ADDRESS_CHAINED;
+       p->des1 |= cpu_to_le32(TDES1_SECOND_ADDRESS_CHAINED);
 }
 
 static inline void norm_set_tx_desc_len_on_chain(struct dma_desc *p, int len)
 {
-       p->des1 |= len & TDES1_BUFFER1_SIZE_MASK;
+       p->des1 |= cpu_to_le32(len & TDES1_BUFFER1_SIZE_MASK);
 }
 #endif /* __DESC_COM_H__ */
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c
@@ -71,9 +71,12 @@ err_remove_config_dt:
 
 static const struct of_device_id dwmac_generic_match[] = {
        { .compatible = "st,spear600-gmac"},
+       { .compatible = "snps,dwmac-3.50a"},
        { .compatible = "snps,dwmac-3.610"},
        { .compatible = "snps,dwmac-3.70a"},
        { .compatible = "snps,dwmac-3.710"},
+       { .compatible = "snps,dwmac-4.00"},
+       { .compatible = "snps,dwmac-4.10a"},
        { .compatible = "snps,dwmac"},
        { }
 };
--- /dev/null
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c
@@ -0,0 +1,194 @@
+/*
+ * Oxford Semiconductor OXNAS DWMAC glue layer
+ *
+ * Copyright (C) 2016 Neil Armstrong <narmstrong@baylibre.com>
+ * Copyright (C) 2014 Daniel Golle <daniel@makrotopia.org>
+ * Copyright (C) 2013 Ma Haijun <mahaijuns@gmail.com>
+ * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
+#include <linux/stmmac.h>
+
+#include "stmmac_platform.h"
+
+/* System Control regmap offsets */
+#define OXNAS_DWMAC_CTRL_REGOFFSET     0x78
+#define OXNAS_DWMAC_DELAY_REGOFFSET    0x100
+
+/* Control Register */
+#define DWMAC_CKEN_RX_IN        14
+#define DWMAC_CKEN_RXN_OUT      13
+#define DWMAC_CKEN_RX_OUT       12
+#define DWMAC_CKEN_TX_IN        10
+#define DWMAC_CKEN_TXN_OUT      9
+#define DWMAC_CKEN_TX_OUT       8
+#define DWMAC_RX_SOURCE         7
+#define DWMAC_TX_SOURCE         6
+#define DWMAC_LOW_TX_SOURCE     4
+#define DWMAC_AUTO_TX_SOURCE    3
+#define DWMAC_RGMII             2
+#define DWMAC_SIMPLE_MUX        1
+#define DWMAC_CKEN_GTX          0
+
+/* Delay register */
+#define DWMAC_TX_VARDELAY_SHIFT                0
+#define DWMAC_TXN_VARDELAY_SHIFT       8
+#define DWMAC_RX_VARDELAY_SHIFT                16
+#define DWMAC_RXN_VARDELAY_SHIFT       24
+#define DWMAC_TX_VARDELAY(d)           ((d) << DWMAC_TX_VARDELAY_SHIFT)
+#define DWMAC_TXN_VARDELAY(d)          ((d) << DWMAC_TXN_VARDELAY_SHIFT)
+#define DWMAC_RX_VARDELAY(d)           ((d) << DWMAC_RX_VARDELAY_SHIFT)
+#define DWMAC_RXN_VARDELAY(d)          ((d) << DWMAC_RXN_VARDELAY_SHIFT)
+
+struct oxnas_dwmac {
+       struct device   *dev;
+       struct clk      *clk;
+       struct regmap   *regmap;
+};
+
+static int oxnas_dwmac_init(struct platform_device *pdev, void *priv)
+{
+       struct oxnas_dwmac *dwmac = priv;
+       unsigned int value;
+       int ret;
+
+       /* Reset HW here before changing the glue configuration */
+       ret = device_reset(dwmac->dev);
+       if (ret)
+               return ret;
+
+       ret = clk_prepare_enable(dwmac->clk);
+       if (ret)
+               return ret;
+
+       ret = regmap_read(dwmac->regmap, OXNAS_DWMAC_CTRL_REGOFFSET, &value);
+       if (ret < 0) {
+               clk_disable_unprepare(dwmac->clk);
+               return ret;
+       }
+
+       /* Enable GMII_GTXCLK to follow GMII_REFCLK, required for gigabit PHY */
+       value |= BIT(DWMAC_CKEN_GTX)            |
+                /* Use simple mux for 25/125 Mhz clock switching */
+                BIT(DWMAC_SIMPLE_MUX)          |
+                /* set auto switch tx clock source */
+                BIT(DWMAC_AUTO_TX_SOURCE)      |
+                /* enable tx & rx vardelay */
+                BIT(DWMAC_CKEN_TX_OUT)         |
+                BIT(DWMAC_CKEN_TXN_OUT)        |
+                BIT(DWMAC_CKEN_TX_IN)          |
+                BIT(DWMAC_CKEN_RX_OUT)         |
+                BIT(DWMAC_CKEN_RXN_OUT)        |
+                BIT(DWMAC_CKEN_RX_IN);
+       regmap_write(dwmac->regmap, OXNAS_DWMAC_CTRL_REGOFFSET, value);
+
+       /* set tx & rx vardelay */
+       value = DWMAC_TX_VARDELAY(4)    |
+               DWMAC_TXN_VARDELAY(2)   |
+               DWMAC_RX_VARDELAY(10)   |
+               DWMAC_RXN_VARDELAY(8);
+       regmap_write(dwmac->regmap, OXNAS_DWMAC_DELAY_REGOFFSET, value);
+
+       return 0;
+}
+
+static void oxnas_dwmac_exit(struct platform_device *pdev, void *priv)
+{
+       struct oxnas_dwmac *dwmac = priv;
+
+       clk_disable_unprepare(dwmac->clk);
+}
+
+static int oxnas_dwmac_probe(struct platform_device *pdev)
+{
+       struct plat_stmmacenet_data *plat_dat;
+       struct stmmac_resources stmmac_res;
+       struct oxnas_dwmac *dwmac;
+       int ret;
+
+       ret = stmmac_get_platform_resources(pdev, &stmmac_res);
+       if (ret)
+               return ret;
+
+       plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac);
+       if (IS_ERR(plat_dat))
+               return PTR_ERR(plat_dat);
+
+       dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);
+       if (!dwmac) {
+               ret = -ENOMEM;
+               goto err_remove_config_dt;
+       }
+
+       dwmac->dev = &pdev->dev;
+       plat_dat->bsp_priv = dwmac;
+       plat_dat->init = oxnas_dwmac_init;
+       plat_dat->exit = oxnas_dwmac_exit;
+
+       dwmac->regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
+                                                       "oxsemi,sys-ctrl");
+       if (IS_ERR(dwmac->regmap)) {
+               dev_err(&pdev->dev, "failed to have sysctrl regmap\n");
+               ret = PTR_ERR(dwmac->regmap);
+               goto err_remove_config_dt;
+       }
+
+       dwmac->clk = devm_clk_get(&pdev->dev, "gmac");
+       if (IS_ERR(dwmac->clk)) {
+               ret = PTR_ERR(dwmac->clk);
+               goto err_remove_config_dt;
+       }
+
+       ret = oxnas_dwmac_init(pdev, plat_dat->bsp_priv);
+       if (ret)
+               goto err_remove_config_dt;
+
+       ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
+       if (ret)
+               goto err_dwmac_exit;
+
+
+       return 0;
+
+err_dwmac_exit:
+       oxnas_dwmac_exit(pdev, plat_dat->bsp_priv);
+err_remove_config_dt:
+       stmmac_remove_config_dt(pdev, plat_dat);
+
+       return ret;
+}
+
+static const struct of_device_id oxnas_dwmac_match[] = {
+       { .compatible = "oxsemi,ox820-dwmac" },
+       { }
+};
+MODULE_DEVICE_TABLE(of, oxnas_dwmac_match);
+
+static struct platform_driver oxnas_dwmac_driver = {
+       .probe  = oxnas_dwmac_probe,
+       .remove = stmmac_pltfr_remove,
+       .driver = {
+               .name           = "oxnas-dwmac",
+               .pm             = &stmmac_pltfr_pm_ops,
+               .of_match_table = oxnas_dwmac_match,
+       },
+};
+module_platform_driver(oxnas_dwmac_driver);
+
+MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>");
+MODULE_DESCRIPTION("Oxford Semiconductor OXNAS DWMAC glue layer");
+MODULE_LICENSE("GPL v2");
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -864,6 +864,10 @@ static int rk_gmac_powerup(struct rk_pri
        int ret;
        struct device *dev = &bsp_priv->pdev->dev;
 
+       ret = gmac_clk_enable(bsp_priv, true);
+       if (ret)
+               return ret;
+
        /*rmii or rgmii*/
        if (bsp_priv->phy_iface == PHY_INTERFACE_MODE_RGMII) {
                dev_info(dev, "init for RGMII\n");
@@ -880,10 +884,6 @@ static int rk_gmac_powerup(struct rk_pri
        if (ret)
                return ret;
 
-       ret = gmac_clk_enable(bsp_priv, true);
-       if (ret)
-               return ret;
-
        pm_runtime_enable(dev);
        pm_runtime_get_sync(dev);
 
@@ -901,44 +901,6 @@ static void rk_gmac_powerdown(struct rk_
        gmac_clk_enable(gmac, false);
 }
 
-static int rk_gmac_init(struct platform_device *pdev, void *priv)
-{
-       struct rk_priv_data *bsp_priv = priv;
-
-       return rk_gmac_powerup(bsp_priv);
-}
-
-static void rk_gmac_exit(struct platform_device *pdev, void *priv)
-{
-       struct rk_priv_data *bsp_priv = priv;
-
-       rk_gmac_powerdown(bsp_priv);
-}
-
-static void rk_gmac_suspend(struct platform_device *pdev, void *priv)
-{
-       struct rk_priv_data *bsp_priv = priv;
-
-       /* Keep the PHY up if we use Wake-on-Lan. */
-       if (device_may_wakeup(&pdev->dev))
-               return;
-
-       rk_gmac_powerdown(bsp_priv);
-       bsp_priv->suspended = true;
-}
-
-static void rk_gmac_resume(struct platform_device *pdev, void *priv)
-{
-       struct rk_priv_data *bsp_priv = priv;
-
-       /* The PHY was up for Wake-on-Lan. */
-       if (!bsp_priv->suspended)
-               return;
-
-       rk_gmac_powerup(bsp_priv);
-       bsp_priv->suspended = false;
-}
-
 static void rk_fix_speed(void *priv, unsigned int speed)
 {
        struct rk_priv_data *bsp_priv = priv;
@@ -974,11 +936,7 @@ static int rk_gmac_probe(struct platform
                return PTR_ERR(plat_dat);
 
        plat_dat->has_gmac = true;
-       plat_dat->init = rk_gmac_init;
-       plat_dat->exit = rk_gmac_exit;
        plat_dat->fix_mac_speed = rk_fix_speed;
-       plat_dat->suspend = rk_gmac_suspend;
-       plat_dat->resume = rk_gmac_resume;
 
        plat_dat->bsp_priv = rk_gmac_setup(pdev, data);
        if (IS_ERR(plat_dat->bsp_priv)) {
@@ -986,24 +944,65 @@ static int rk_gmac_probe(struct platform
                goto err_remove_config_dt;
        }
 
-       ret = rk_gmac_init(pdev, plat_dat->bsp_priv);
+       ret = rk_gmac_powerup(plat_dat->bsp_priv);
        if (ret)
                goto err_remove_config_dt;
 
        ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
        if (ret)
-               goto err_gmac_exit;
+               goto err_gmac_powerdown;
 
        return 0;
 
-err_gmac_exit:
-       rk_gmac_exit(pdev, plat_dat->bsp_priv);
+err_gmac_powerdown:
+       rk_gmac_powerdown(plat_dat->bsp_priv);
 err_remove_config_dt:
        stmmac_remove_config_dt(pdev, plat_dat);
 
        return ret;
 }
 
+static int rk_gmac_remove(struct platform_device *pdev)
+{
+       struct rk_priv_data *bsp_priv = get_stmmac_bsp_priv(&pdev->dev);
+       int ret = stmmac_dvr_remove(&pdev->dev);
+
+       rk_gmac_powerdown(bsp_priv);
+
+       return ret;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int rk_gmac_suspend(struct device *dev)
+{
+       struct rk_priv_data *bsp_priv = get_stmmac_bsp_priv(dev);
+       int ret = stmmac_suspend(dev);
+
+       /* Keep the PHY up if we use Wake-on-Lan. */
+       if (!device_may_wakeup(dev)) {
+               rk_gmac_powerdown(bsp_priv);
+               bsp_priv->suspended = true;
+       }
+
+       return ret;
+}
+
+static int rk_gmac_resume(struct device *dev)
+{
+       struct rk_priv_data *bsp_priv = get_stmmac_bsp_priv(dev);
+
+       /* The PHY was up for Wake-on-Lan. */
+       if (bsp_priv->suspended) {
+               rk_gmac_powerup(bsp_priv);
+               bsp_priv->suspended = false;
+       }
+
+       return stmmac_resume(dev);
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(rk_gmac_pm_ops, rk_gmac_suspend, rk_gmac_resume);
+
 static const struct of_device_id rk_gmac_dwmac_match[] = {
        { .compatible = "rockchip,rk3228-gmac", .data = &rk3228_ops },
        { .compatible = "rockchip,rk3288-gmac", .data = &rk3288_ops },
@@ -1016,10 +1015,10 @@ MODULE_DEVICE_TABLE(of, rk_gmac_dwmac_ma
 
 static struct platform_driver rk_gmac_dwmac_driver = {
        .probe  = rk_gmac_probe,
-       .remove = stmmac_pltfr_remove,
+       .remove = rk_gmac_remove,
        .driver = {
                .name           = "rk_gmac-dwmac",
-               .pm             = &stmmac_pltfr_pm_ops,
+               .pm             = &rk_gmac_pm_ops,
                .of_match_table = rk_gmac_dwmac_match,
        },
 };
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -380,8 +380,8 @@ static int socfpga_dwmac_resume(struct d
         * control register 0, and can be modified by the phy driver
         * framework.
         */
-       if (priv->phydev)
-               phy_resume(priv->phydev);
+       if (ndev->phydev)
+               phy_resume(ndev->phydev);
 
        return stmmac_resume(dev);
 }
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
@@ -126,8 +126,8 @@ struct sti_dwmac {
        struct clk *clk;        /* PHY clock */
        u32 ctrl_reg;           /* GMAC glue-logic control register */
        int clk_sel_reg;        /* GMAC ext clk selection register */
-       struct device *dev;
        struct regmap *regmap;
+       bool gmac_en;
        u32 speed;
        void (*fix_retime_src)(void *priv, unsigned int speed);
 };
@@ -191,7 +191,7 @@ static void stih4xx_fix_retime_src(void
                }
        }
 
-       if (src == TX_RETIME_SRC_CLKGEN && dwmac->clk && freq)
+       if (src == TX_RETIME_SRC_CLKGEN && freq)
                clk_set_rate(dwmac->clk, freq);
 
        regmap_update_bits(dwmac->regmap, reg, STIH4XX_RETIME_SRC_MASK,
@@ -222,26 +222,20 @@ static void stid127_fix_retime_src(void
                        freq = DWMAC_2_5MHZ;
        }
 
-       if (dwmac->clk && freq)
+       if (freq)
                clk_set_rate(dwmac->clk, freq);
 
        regmap_update_bits(dwmac->regmap, reg, STID127_RETIME_SRC_MASK, val);
 }
 
-static int sti_dwmac_init(struct platform_device *pdev, void *priv)
+static int sti_dwmac_set_mode(struct sti_dwmac *dwmac)
 {
-       struct sti_dwmac *dwmac = priv;
        struct regmap *regmap = dwmac->regmap;
        int iface = dwmac->interface;
-       struct device *dev = dwmac->dev;
-       struct device_node *np = dev->of_node;
        u32 reg = dwmac->ctrl_reg;
        u32 val;
 
-       if (dwmac->clk)
-               clk_prepare_enable(dwmac->clk);
-
-       if (of_property_read_bool(np, "st,gmac_en"))
+       if (dwmac->gmac_en)
                regmap_update_bits(regmap, reg, EN_MASK, EN);
 
        regmap_update_bits(regmap, reg, MII_PHY_SEL_MASK, phy_intf_sels[iface]);
@@ -249,18 +243,11 @@ static int sti_dwmac_init(struct platfor
        val = (iface == PHY_INTERFACE_MODE_REVMII) ? 0 : ENMII;
        regmap_update_bits(regmap, reg, ENMII_MASK, val);
 
-       dwmac->fix_retime_src(priv, dwmac->speed);
+       dwmac->fix_retime_src(dwmac, dwmac->speed);
 
        return 0;
 }
 
-static void sti_dwmac_exit(struct platform_device *pdev, void *priv)
-{
-       struct sti_dwmac *dwmac = priv;
-
-       if (dwmac->clk)
-               clk_disable_unprepare(dwmac->clk);
-}
 static int sti_dwmac_parse_data(struct sti_dwmac *dwmac,
                                struct platform_device *pdev)
 {
@@ -270,9 +257,6 @@ static int sti_dwmac_parse_data(struct s
        struct regmap *regmap;
        int err;
 
-       if (!np)
-               return -EINVAL;
-
        /* clk selection from extra syscfg register */
        dwmac->clk_sel_reg = -ENXIO;
        res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sti-clkconf");
@@ -289,9 +273,9 @@ static int sti_dwmac_parse_data(struct s
                return err;
        }
 
-       dwmac->dev = dev;
        dwmac->interface = of_get_phy_mode(np);
        dwmac->regmap = regmap;
+       dwmac->gmac_en = of_property_read_bool(np, "st,gmac_en");
        dwmac->ext_phyclk = of_property_read_bool(np, "st,ext-phyclk");
        dwmac->tx_retime_src = TX_RETIME_SRC_NA;
        dwmac->speed = SPEED_100;
@@ -359,28 +343,65 @@ static int sti_dwmac_probe(struct platfo
        dwmac->fix_retime_src = data->fix_retime_src;
 
        plat_dat->bsp_priv = dwmac;
-       plat_dat->init = sti_dwmac_init;
-       plat_dat->exit = sti_dwmac_exit;
        plat_dat->fix_mac_speed = data->fix_retime_src;
 
-       ret = sti_dwmac_init(pdev, plat_dat->bsp_priv);
+       ret = clk_prepare_enable(dwmac->clk);
        if (ret)
                goto err_remove_config_dt;
 
+       ret = sti_dwmac_set_mode(dwmac);
+       if (ret)
+               goto disable_clk;
+
        ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
        if (ret)
-               goto err_dwmac_exit;
+               goto disable_clk;
 
        return 0;
 
-err_dwmac_exit:
-       sti_dwmac_exit(pdev, plat_dat->bsp_priv);
+disable_clk:
+       clk_disable_unprepare(dwmac->clk);
 err_remove_config_dt:
        stmmac_remove_config_dt(pdev, plat_dat);
 
        return ret;
 }
 
+static int sti_dwmac_remove(struct platform_device *pdev)
+{
+       struct sti_dwmac *dwmac = get_stmmac_bsp_priv(&pdev->dev);
+       int ret = stmmac_dvr_remove(&pdev->dev);
+
+       clk_disable_unprepare(dwmac->clk);
+
+       return ret;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int sti_dwmac_suspend(struct device *dev)
+{
+       struct sti_dwmac *dwmac = get_stmmac_bsp_priv(dev);
+       int ret = stmmac_suspend(dev);
+
+       clk_disable_unprepare(dwmac->clk);
+
+       return ret;
+}
+
+static int sti_dwmac_resume(struct device *dev)
+{
+       struct sti_dwmac *dwmac = get_stmmac_bsp_priv(dev);
+
+       clk_prepare_enable(dwmac->clk);
+       sti_dwmac_set_mode(dwmac);
+
+       return stmmac_resume(dev);
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(sti_dwmac_pm_ops, sti_dwmac_suspend,
+                                          sti_dwmac_resume);
+
 static const struct sti_dwmac_of_data stih4xx_dwmac_data = {
        .fix_retime_src = stih4xx_fix_retime_src,
 };
@@ -400,10 +421,10 @@ MODULE_DEVICE_TABLE(of, sti_dwmac_match)
 
 static struct platform_driver sti_dwmac_driver = {
        .probe  = sti_dwmac_probe,
-       .remove = stmmac_pltfr_remove,
+       .remove = sti_dwmac_remove,
        .driver = {
                .name           = "sti-dwmac",
-               .pm             = &stmmac_pltfr_pm_ops,
+               .pm             = &sti_dwmac_pm_ops,
                .of_match_table = sti_dwmac_match,
        },
 };
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h
@@ -225,7 +225,7 @@ enum rx_tx_priority_ratio {
 
 #define DMA_BUS_MODE_FB                0x00010000      /* Fixed burst */
 #define DMA_BUS_MODE_MB                0x04000000      /* Mixed burst */
-#define DMA_BUS_MODE_RPBL_MASK 0x003e0000      /* Rx-Programmable Burst Len */
+#define DMA_BUS_MODE_RPBL_MASK 0x007e0000      /* Rx-Programmable Burst Len */
 #define DMA_BUS_MODE_RPBL_SHIFT        17
 #define DMA_BUS_MODE_USP       0x00800000
 #define DMA_BUS_MODE_MAXPBL    0x01000000
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
@@ -538,6 +538,12 @@ struct mac_device_info *dwmac1000_setup(
        mac->link.speed = GMAC_CONTROL_FES;
        mac->mii.addr = GMAC_MII_ADDR;
        mac->mii.data = GMAC_MII_DATA;
+       mac->mii.addr_shift = 11;
+       mac->mii.addr_mask = 0x0000F800;
+       mac->mii.reg_shift = 6;
+       mac->mii.reg_mask = 0x000007C0;
+       mac->mii.clk_csr_shift = 2;
+       mac->mii.clk_csr_mask = GENMASK(5, 2);
 
        /* Get and dump the chip ID */
        *synopsys_id = stmmac_get_synopsys_id(hwid);
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
@@ -84,37 +84,39 @@ static void dwmac1000_dma_axi(void __iom
        writel(value, ioaddr + DMA_AXI_BUS_MODE);
 }
 
-static void dwmac1000_dma_init(void __iomem *ioaddr, int pbl, int fb, int mb,
-                              int aal, u32 dma_tx, u32 dma_rx, int atds)
+static void dwmac1000_dma_init(void __iomem *ioaddr,
+                              struct stmmac_dma_cfg *dma_cfg,
+                              u32 dma_tx, u32 dma_rx, int atds)
 {
        u32 value = readl(ioaddr + DMA_BUS_MODE);
+       int txpbl = dma_cfg->txpbl ?: dma_cfg->pbl;
+       int rxpbl = dma_cfg->rxpbl ?: dma_cfg->pbl;
 
        /*
         * Set the DMA PBL (Programmable Burst Length) mode.
         *
         * Note: before stmmac core 3.50 this mode bit was 4xPBL, and
         * post 3.5 mode bit acts as 8*PBL.
-        *
-        * This configuration doesn't take care about the Separate PBL
-        * so only the bits: 13-8 are programmed with the PBL passed from the
-        * platform.
         */
-       value |= DMA_BUS_MODE_MAXPBL;
-       value &= ~DMA_BUS_MODE_PBL_MASK;
-       value |= (pbl << DMA_BUS_MODE_PBL_SHIFT);
+       if (dma_cfg->pblx8)
+               value |= DMA_BUS_MODE_MAXPBL;
+       value |= DMA_BUS_MODE_USP;
+       value &= ~(DMA_BUS_MODE_PBL_MASK | DMA_BUS_MODE_RPBL_MASK);
+       value |= (txpbl << DMA_BUS_MODE_PBL_SHIFT);
+       value |= (rxpbl << DMA_BUS_MODE_RPBL_SHIFT);
 
        /* Set the Fixed burst mode */
-       if (fb)
+       if (dma_cfg->fixed_burst)
                value |= DMA_BUS_MODE_FB;
 
        /* Mixed Burst has no effect when fb is set */
-       if (mb)
+       if (dma_cfg->mixed_burst)
                value |= DMA_BUS_MODE_MB;
 
        if (atds)
                value |= DMA_BUS_MODE_ATDS;
 
-       if (aal)
+       if (dma_cfg->aal)
                value |= DMA_BUS_MODE_AAL;
 
        writel(value, ioaddr + DMA_BUS_MODE);
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c
@@ -192,6 +192,13 @@ struct mac_device_info *dwmac100_setup(v
        mac->link.speed = 0;
        mac->mii.addr = MAC_MII_ADDR;
        mac->mii.data = MAC_MII_DATA;
+       mac->mii.addr_shift = 11;
+       mac->mii.addr_mask = 0x0000F800;
+       mac->mii.reg_shift = 6;
+       mac->mii.reg_mask = 0x000007C0;
+       mac->mii.clk_csr_shift = 2;
+       mac->mii.clk_csr_mask = GENMASK(5, 2);
+
        /* Synopsys Id is not available on old chips */
        *synopsys_id = 0;
 
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
@@ -32,11 +32,12 @@
 #include "dwmac100.h"
 #include "dwmac_dma.h"
 
-static void dwmac100_dma_init(void __iomem *ioaddr, int pbl, int fb, int mb,
-                             int aal, u32 dma_tx, u32 dma_rx, int atds)
+static void dwmac100_dma_init(void __iomem *ioaddr,
+                             struct stmmac_dma_cfg *dma_cfg,
+                             u32 dma_tx, u32 dma_rx, int atds)
 {
        /* Enable Application Access by writing to DMA CSR0 */
-       writel(DMA_BUS_MODE_DEFAULT | (pbl << DMA_BUS_MODE_PBL_SHIFT),
+       writel(DMA_BUS_MODE_DEFAULT | (dma_cfg->pbl << DMA_BUS_MODE_PBL_SHIFT),
               ioaddr + DMA_BUS_MODE);
 
        /* Mask interrupts by writing to CSR7 */
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4.h
@@ -155,8 +155,11 @@ enum power_event {
 #define MTL_CHAN_RX_DEBUG(x)           (MTL_CHANX_BASE_ADDR(x) + 0x38)
 
 #define MTL_OP_MODE_RSF                        BIT(5)
+#define MTL_OP_MODE_TXQEN              BIT(3)
 #define MTL_OP_MODE_TSF                        BIT(1)
 
+#define MTL_OP_MODE_TQS_MASK           GENMASK(24, 16)
+
 #define MTL_OP_MODE_TTC_MASK           0x70
 #define MTL_OP_MODE_TTC_SHIFT          4
 
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -430,6 +430,12 @@ struct mac_device_info *dwmac4_setup(voi
        mac->link.speed = GMAC_CONFIG_FES;
        mac->mii.addr = GMAC_MDIO_ADDR;
        mac->mii.data = GMAC_MDIO_DATA;
+       mac->mii.addr_shift = 21;
+       mac->mii.addr_mask = GENMASK(25, 21);
+       mac->mii.reg_shift = 16;
+       mac->mii.reg_mask = GENMASK(20, 16);
+       mac->mii.clk_csr_shift = 8;
+       mac->mii.clk_csr_mask = GENMASK(11, 8);
 
        /* Get and dump the chip ID */
        *synopsys_id = stmmac_get_synopsys_id(hwid);
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
@@ -23,7 +23,7 @@ static int dwmac4_wrback_get_tx_status(v
        unsigned int tdes3;
        int ret = tx_done;
 
-       tdes3 = p->des3;
+       tdes3 = le32_to_cpu(p->des3);
 
        /* Get tx owner first */
        if (unlikely(tdes3 & TDES3_OWN))
@@ -77,9 +77,9 @@ static int dwmac4_wrback_get_rx_status(v
                                       struct dma_desc *p)
 {
        struct net_device_stats *stats = (struct net_device_stats *)data;
-       unsigned int rdes1 = p->des1;
-       unsigned int rdes2 = p->des2;
-       unsigned int rdes3 = p->des3;
+       unsigned int rdes1 = le32_to_cpu(p->des1);
+       unsigned int rdes2 = le32_to_cpu(p->des2);
+       unsigned int rdes3 = le32_to_cpu(p->des3);
        int message_type;
        int ret = good_frame;
 
@@ -176,47 +176,48 @@ static int dwmac4_wrback_get_rx_status(v
 
 static int dwmac4_rd_get_tx_len(struct dma_desc *p)
 {
-       return (p->des2 & TDES2_BUFFER1_SIZE_MASK);
+       return (le32_to_cpu(p->des2) & TDES2_BUFFER1_SIZE_MASK);
 }
 
 static int dwmac4_get_tx_owner(struct dma_desc *p)
 {
-       return (p->des3 & TDES3_OWN) >> TDES3_OWN_SHIFT;
+       return (le32_to_cpu(p->des3) & TDES3_OWN) >> TDES3_OWN_SHIFT;
 }
 
 static void dwmac4_set_tx_owner(struct dma_desc *p)
 {
-       p->des3 |= TDES3_OWN;
+       p->des3 |= cpu_to_le32(TDES3_OWN);
 }
 
 static void dwmac4_set_rx_owner(struct dma_desc *p)
 {
-       p->des3 |= RDES3_OWN;
+       p->des3 |= cpu_to_le32(RDES3_OWN);
 }
 
 static int dwmac4_get_tx_ls(struct dma_desc *p)
 {
-       return (p->des3 & TDES3_LAST_DESCRIPTOR) >> TDES3_LAST_DESCRIPTOR_SHIFT;
+       return (le32_to_cpu(p->des3) & TDES3_LAST_DESCRIPTOR)
+               >> TDES3_LAST_DESCRIPTOR_SHIFT;
 }
 
 static int dwmac4_wrback_get_rx_frame_len(struct dma_desc *p, int rx_coe)
 {
-       return (p->des3 & RDES3_PACKET_SIZE_MASK);
+       return (le32_to_cpu(p->des3) & RDES3_PACKET_SIZE_MASK);
 }
 
 static void dwmac4_rd_enable_tx_timestamp(struct dma_desc *p)
 {
-       p->des2 |= TDES2_TIMESTAMP_ENABLE;
+       p->des2 |= cpu_to_le32(TDES2_TIMESTAMP_ENABLE);
 }
 
 static int dwmac4_wrback_get_tx_timestamp_status(struct dma_desc *p)
 {
        /* Context type from W/B descriptor must be zero */
-       if (p->des3 & TDES3_CONTEXT_TYPE)
+       if (le32_to_cpu(p->des3) & TDES3_CONTEXT_TYPE)
                return -EINVAL;
 
        /* Tx Timestamp Status is 1 so des0 and des1'll have valid values */
-       if (p->des3 & TDES3_TIMESTAMP_STATUS)
+       if (le32_to_cpu(p->des3) & TDES3_TIMESTAMP_STATUS)
                return 0;
 
        return 1;
@@ -227,9 +228,9 @@ static inline u64 dwmac4_get_timestamp(v
        struct dma_desc *p = (struct dma_desc *)desc;
        u64 ns;
 
-       ns = p->des0;
+       ns = le32_to_cpu(p->des0);
        /* convert high/sec time stamp value to nanosecond */
-       ns += p->des1 * 1000000000ULL;
+       ns += le32_to_cpu(p->des1) * 1000000000ULL;
 
        return ns;
 }
@@ -264,7 +265,7 @@ static int dwmac4_wrback_get_rx_timestam
 
        /* Get the status from normal w/b descriptor */
        if (likely(p->des3 & TDES3_RS1V)) {
-               if (likely(p->des1 & RDES1_TIMESTAMP_AVAILABLE)) {
+               if (likely(le32_to_cpu(p->des1) & RDES1_TIMESTAMP_AVAILABLE)) {
                        int i = 0;
 
                        /* Check if timestamp is OK from context descriptor */
@@ -287,10 +288,10 @@ exit:
 static void dwmac4_rd_init_rx_desc(struct dma_desc *p, int disable_rx_ic,
                                   int mode, int end)
 {
-       p->des3 = RDES3_OWN | RDES3_BUFFER1_VALID_ADDR;
+       p->des3 = cpu_to_le32(RDES3_OWN | RDES3_BUFFER1_VALID_ADDR);
 
        if (!disable_rx_ic)
-               p->des3 |= RDES3_INT_ON_COMPLETION_EN;
+               p->des3 |= cpu_to_le32(RDES3_INT_ON_COMPLETION_EN);
 }
 
 static void dwmac4_rd_init_tx_desc(struct dma_desc *p, int mode, int end)
@@ -305,9 +306,9 @@ static void dwmac4_rd_prepare_tx_desc(st
                                      bool csum_flag, int mode, bool tx_own,
                                      bool ls)
 {
-       unsigned int tdes3 = p->des3;
+       unsigned int tdes3 = le32_to_cpu(p->des3);
 
-       p->des2 |= (len & TDES2_BUFFER1_SIZE_MASK);
+       p->des2 |= cpu_to_le32(len & TDES2_BUFFER1_SIZE_MASK);
 
        if (is_fs)
                tdes3 |= TDES3_FIRST_DESCRIPTOR;
@@ -333,9 +334,9 @@ static void dwmac4_rd_prepare_tx_desc(st
                 * descriptors for the same frame has to be set before, to
                 * avoid race condition.
                 */
-               wmb();
+               dma_wmb();
 
-       p->des3 = tdes3;
+       p->des3 = cpu_to_le32(tdes3);
 }
 
 static void dwmac4_rd_prepare_tso_tx_desc(struct dma_desc *p, int is_fs,
@@ -343,14 +344,14 @@ static void dwmac4_rd_prepare_tso_tx_des
                                          bool ls, unsigned int tcphdrlen,
                                          unsigned int tcppayloadlen)
 {
-       unsigned int tdes3 = p->des3;
+       unsigned int tdes3 = le32_to_cpu(p->des3);
 
        if (len1)
-               p->des2 |= (len1 & TDES2_BUFFER1_SIZE_MASK);
+               p->des2 |= cpu_to_le32((len1 & TDES2_BUFFER1_SIZE_MASK));
 
        if (len2)
-               p->des2 |= (len2 << TDES2_BUFFER2_SIZE_MASK_SHIFT)
-                           & TDES2_BUFFER2_SIZE_MASK;
+               p->des2 |= cpu_to_le32((len2 << TDES2_BUFFER2_SIZE_MASK_SHIFT)
+                           & TDES2_BUFFER2_SIZE_MASK);
 
        if (is_fs) {
                tdes3 |= TDES3_FIRST_DESCRIPTOR |
@@ -376,9 +377,9 @@ static void dwmac4_rd_prepare_tso_tx_des
                 * descriptors for the same frame has to be set before, to
                 * avoid race condition.
                 */
-               wmb();
+               dma_wmb();
 
-       p->des3 = tdes3;
+       p->des3 = cpu_to_le32(tdes3);
 }
 
 static void dwmac4_release_tx_desc(struct dma_desc *p, int mode)
@@ -389,7 +390,7 @@ static void dwmac4_release_tx_desc(struc
 
 static void dwmac4_rd_set_tx_ic(struct dma_desc *p)
 {
-       p->des2 |= TDES2_INTERRUPT_ON_COMPLETION;
+       p->des2 |= cpu_to_le32(TDES2_INTERRUPT_ON_COMPLETION);
 }
 
 static void dwmac4_display_ring(void *head, unsigned int size, bool rx)
@@ -402,7 +403,8 @@ static void dwmac4_display_ring(void *he
        for (i = 0; i < size; i++) {
                pr_info("%d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n",
                        i, (unsigned int)virt_to_phys(p),
-                       p->des0, p->des1, p->des2, p->des3);
+                       le32_to_cpu(p->des0), le32_to_cpu(p->des1),
+                       le32_to_cpu(p->des2), le32_to_cpu(p->des3));
                p++;
        }
 }
@@ -411,8 +413,8 @@ static void dwmac4_set_mss_ctxt(struct d
 {
        p->des0 = 0;
        p->des1 = 0;
-       p->des2 = mss;
-       p->des3 = TDES3_CONTEXT_TYPE | TDES3_CTXT_TCMSSV;
+       p->des2 = cpu_to_le32(mss);
+       p->des3 = cpu_to_le32(TDES3_CONTEXT_TYPE | TDES3_CTXT_TCMSSV);
 }
 
 const struct stmmac_desc_ops dwmac4_desc_ops = {
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c
@@ -71,25 +71,29 @@ static void dwmac4_dma_axi(void __iomem
        writel(value, ioaddr + DMA_SYS_BUS_MODE);
 }
 
-static void dwmac4_dma_init_channel(void __iomem *ioaddr, int pbl,
+static void dwmac4_dma_init_channel(void __iomem *ioaddr,
+                                   struct stmmac_dma_cfg *dma_cfg,
                                    u32 dma_tx_phy, u32 dma_rx_phy,
                                    u32 channel)
 {
        u32 value;
+       int txpbl = dma_cfg->txpbl ?: dma_cfg->pbl;
+       int rxpbl = dma_cfg->rxpbl ?: dma_cfg->pbl;
 
        /* set PBL for each channels. Currently we affect same configuration
         * on each channel
         */
        value = readl(ioaddr + DMA_CHAN_CONTROL(channel));
-       value = value | DMA_BUS_MODE_PBL;
+       if (dma_cfg->pblx8)
+               value = value | DMA_BUS_MODE_PBL;
        writel(value, ioaddr + DMA_CHAN_CONTROL(channel));
 
        value = readl(ioaddr + DMA_CHAN_TX_CONTROL(channel));
-       value = value | (pbl << DMA_BUS_MODE_PBL_SHIFT);
+       value = value | (txpbl << DMA_BUS_MODE_PBL_SHIFT);
        writel(value, ioaddr + DMA_CHAN_TX_CONTROL(channel));
 
        value = readl(ioaddr + DMA_CHAN_RX_CONTROL(channel));
-       value = value | (pbl << DMA_BUS_MODE_RPBL_SHIFT);
+       value = value | (rxpbl << DMA_BUS_MODE_RPBL_SHIFT);
        writel(value, ioaddr + DMA_CHAN_RX_CONTROL(channel));
 
        /* Mask interrupts by writing to CSR7 */
@@ -99,27 +103,28 @@ static void dwmac4_dma_init_channel(void
        writel(dma_rx_phy, ioaddr + DMA_CHAN_RX_BASE_ADDR(channel));
 }
 
-static void dwmac4_dma_init(void __iomem *ioaddr, int pbl, int fb, int mb,
-                           int aal, u32 dma_tx, u32 dma_rx, int atds)
+static void dwmac4_dma_init(void __iomem *ioaddr,
+                           struct stmmac_dma_cfg *dma_cfg,
+                           u32 dma_tx, u32 dma_rx, int atds)
 {
        u32 value = readl(ioaddr + DMA_SYS_BUS_MODE);
        int i;
 
        /* Set the Fixed burst mode */
-       if (fb)
+       if (dma_cfg->fixed_burst)
                value |= DMA_SYS_BUS_FB;
 
        /* Mixed Burst has no effect when fb is set */
-       if (mb)
+       if (dma_cfg->mixed_burst)
                value |= DMA_SYS_BUS_MB;
 
-       if (aal)
+       if (dma_cfg->aal)
                value |= DMA_SYS_BUS_AAL;
 
        writel(value, ioaddr + DMA_SYS_BUS_MODE);
 
        for (i = 0; i < DMA_CHANNEL_NB_MAX; i++)
-               dwmac4_dma_init_channel(ioaddr, pbl, dma_tx, dma_rx, i);
+               dwmac4_dma_init_channel(ioaddr, dma_cfg, dma_tx, dma_rx, i);
 }
 
 static void _dwmac4_dump_dma_regs(void __iomem *ioaddr, u32 channel)
@@ -215,7 +220,17 @@ static void dwmac4_dma_chan_op_mode(void
                else
                        mtl_tx_op |= MTL_OP_MODE_TTC_512;
        }
-
+       /* For an IP with DWC_EQOS_NUM_TXQ == 1, the fields TXQEN and TQS are RO
+        * with reset values: TXQEN on, TQS == DWC_EQOS_TXFIFO_SIZE.
+        * For an IP with DWC_EQOS_NUM_TXQ > 1, the fields TXQEN and TQS are R/W
+        * with reset values: TXQEN off, TQS 256 bytes.
+        *
+        * Write the bits in both cases, since it will have no effect when RO.
+        * For DWC_EQOS_NUM_TXQ > 1, the top bits in MTL_OP_MODE_TQS_MASK might
+        * be RO, however, writing the whole TQS field will result in a value
+        * equal to DWC_EQOS_TXFIFO_SIZE, just like for DWC_EQOS_NUM_TXQ == 1.
+        */
+       mtl_tx_op |= MTL_OP_MODE_TXQEN | MTL_OP_MODE_TQS_MASK;
        writel(mtl_tx_op, ioaddr +  MTL_CHAN_TX_OP_MODE(channel));
 
        mtl_rx_op = readl(ioaddr + MTL_CHAN_RX_OP_MODE(channel));
--- a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c
@@ -30,7 +30,7 @@ static int enh_desc_get_tx_status(void *
                                  struct dma_desc *p, void __iomem *ioaddr)
 {
        struct net_device_stats *stats = (struct net_device_stats *)data;
-       unsigned int tdes0 = p->des0;
+       unsigned int tdes0 = le32_to_cpu(p->des0);
        int ret = tx_done;
 
        /* Get tx owner first */
@@ -95,7 +95,7 @@ static int enh_desc_get_tx_status(void *
 
 static int enh_desc_get_tx_len(struct dma_desc *p)
 {
-       return (p->des1 & ETDES1_BUFFER1_SIZE_MASK);
+       return (le32_to_cpu(p->des1) & ETDES1_BUFFER1_SIZE_MASK);
 }
 
 static int enh_desc_coe_rdes0(int ipc_err, int type, int payload_err)
@@ -134,8 +134,8 @@ static int enh_desc_coe_rdes0(int ipc_er
 static void enh_desc_get_ext_status(void *data, struct stmmac_extra_stats *x,
                                    struct dma_extended_desc *p)
 {
-       unsigned int rdes0 = p->basic.des0;
-       unsigned int rdes4 = p->des4;
+       unsigned int rdes0 = le32_to_cpu(p->basic.des0);
+       unsigned int rdes4 = le32_to_cpu(p->des4);
 
        if (unlikely(rdes0 & ERDES0_RX_MAC_ADDR)) {
                int message_type = (rdes4 & ERDES4_MSG_TYPE_MASK) >> 8;
@@ -199,7 +199,7 @@ static int enh_desc_get_rx_status(void *
                                  struct dma_desc *p)
 {
        struct net_device_stats *stats = (struct net_device_stats *)data;
-       unsigned int rdes0 = p->des0;
+       unsigned int rdes0 = le32_to_cpu(p->des0);
        int ret = good_frame;
 
        if (unlikely(rdes0 & RDES0_OWN))
@@ -265,8 +265,8 @@ static int enh_desc_get_rx_status(void *
 static void enh_desc_init_rx_desc(struct dma_desc *p, int disable_rx_ic,
                                  int mode, int end)
 {
-       p->des0 |= RDES0_OWN;
-       p->des1 |= ((BUF_SIZE_8KiB - 1) & ERDES1_BUFFER1_SIZE_MASK);
+       p->des0 |= cpu_to_le32(RDES0_OWN);
+       p->des1 |= cpu_to_le32((BUF_SIZE_8KiB - 1) & ERDES1_BUFFER1_SIZE_MASK);
 
        if (mode == STMMAC_CHAIN_MODE)
                ehn_desc_rx_set_on_chain(p);
@@ -274,12 +274,12 @@ static void enh_desc_init_rx_desc(struct
                ehn_desc_rx_set_on_ring(p, end);
 
        if (disable_rx_ic)
-               p->des1 |= ERDES1_DISABLE_IC;
+               p->des1 |= cpu_to_le32(ERDES1_DISABLE_IC);
 }
 
 static void enh_desc_init_tx_desc(struct dma_desc *p, int mode, int end)
 {
-       p->des0 &= ~ETDES0_OWN;
+       p->des0 &= cpu_to_le32(~ETDES0_OWN);
        if (mode == STMMAC_CHAIN_MODE)
                enh_desc_end_tx_desc_on_chain(p);
        else
@@ -288,27 +288,27 @@ static void enh_desc_init_tx_desc(struct
 
 static int enh_desc_get_tx_owner(struct dma_desc *p)
 {
-       return (p->des0 & ETDES0_OWN) >> 31;
+       return (le32_to_cpu(p->des0) & ETDES0_OWN) >> 31;
 }
 
 static void enh_desc_set_tx_owner(struct dma_desc *p)
 {
-       p->des0 |= ETDES0_OWN;
+       p->des0 |= cpu_to_le32(ETDES0_OWN);
 }
 
 static void enh_desc_set_rx_owner(struct dma_desc *p)
 {
-       p->des0 |= RDES0_OWN;
+       p->des0 |= cpu_to_le32(RDES0_OWN);
 }
 
 static int enh_desc_get_tx_ls(struct dma_desc *p)
 {
-       return (p->des0 & ETDES0_LAST_SEGMENT) >> 29;
+       return (le32_to_cpu(p->des0) & ETDES0_LAST_SEGMENT) >> 29;
 }
 
 static void enh_desc_release_tx_desc(struct dma_desc *p, int mode)
 {
-       int ter = (p->des0 & ETDES0_END_RING) >> 21;
+       int ter = (le32_to_cpu(p->des0) & ETDES0_END_RING) >> 21;
 
        memset(p, 0, offsetof(struct dma_desc, des2));
        if (mode == STMMAC_CHAIN_MODE)
@@ -321,7 +321,7 @@ static void enh_desc_prepare_tx_desc(str
                                     bool csum_flag, int mode, bool tx_own,
                                     bool ls)
 {
-       unsigned int tdes0 = p->des0;
+       unsigned int tdes0 = le32_to_cpu(p->des0);
 
        if (mode == STMMAC_CHAIN_MODE)
                enh_set_tx_desc_len_on_chain(p, len);
@@ -350,14 +350,14 @@ static void enh_desc_prepare_tx_desc(str
                 * descriptors for the same frame has to be set before, to
                 * avoid race condition.
                 */
-               wmb();
+               dma_wmb();
 
-       p->des0 = tdes0;
+       p->des0 = cpu_to_le32(tdes0);
 }
 
 static void enh_desc_set_tx_ic(struct dma_desc *p)
 {
-       p->des0 |= ETDES0_INTERRUPT;
+       p->des0 |= cpu_to_le32(ETDES0_INTERRUPT);
 }
 
 static int enh_desc_get_rx_frame_len(struct dma_desc *p, int rx_coe_type)
@@ -372,18 +372,18 @@ static int enh_desc_get_rx_frame_len(str
        if (rx_coe_type == STMMAC_RX_COE_TYPE1)
                csum = 2;
 
-       return (((p->des0 & RDES0_FRAME_LEN_MASK) >> RDES0_FRAME_LEN_SHIFT) -
-               csum);
+       return (((le32_to_cpu(p->des0) & RDES0_FRAME_LEN_MASK)
+                               >> RDES0_FRAME_LEN_SHIFT) - csum);
 }
 
 static void enh_desc_enable_tx_timestamp(struct dma_desc *p)
 {
-       p->des0 |= ETDES0_TIME_STAMP_ENABLE;
+       p->des0 |= cpu_to_le32(ETDES0_TIME_STAMP_ENABLE);
 }
 
 static int enh_desc_get_tx_timestamp_status(struct dma_desc *p)
 {
-       return (p->des0 & ETDES0_TIME_STAMP_STATUS) >> 17;
+       return (le32_to_cpu(p->des0) & ETDES0_TIME_STAMP_STATUS) >> 17;
 }
 
 static u64 enh_desc_get_timestamp(void *desc, u32 ats)
@@ -392,13 +392,13 @@ static u64 enh_desc_get_timestamp(void *
 
        if (ats) {
                struct dma_extended_desc *p = (struct dma_extended_desc *)desc;
-               ns = p->des6;
+               ns = le32_to_cpu(p->des6);
                /* convert high/sec time stamp value to nanosecond */
-               ns += p->des7 * 1000000000ULL;
+               ns += le32_to_cpu(p->des7) * 1000000000ULL;
        } else {
                struct dma_desc *p = (struct dma_desc *)desc;
-               ns = p->des2;
-               ns += p->des3 * 1000000000ULL;
+               ns = le32_to_cpu(p->des2);
+               ns += le32_to_cpu(p->des3) * 1000000000ULL;
        }
 
        return ns;
@@ -408,10 +408,11 @@ static int enh_desc_get_rx_timestamp_sta
 {
        if (ats) {
                struct dma_extended_desc *p = (struct dma_extended_desc *)desc;
-               return (p->basic.des0 & RDES0_IPC_CSUM_ERROR) >> 7;
+               return (le32_to_cpu(p->basic.des0) & RDES0_IPC_CSUM_ERROR) >> 7;
        } else {
                struct dma_desc *p = (struct dma_desc *)desc;
-               if ((p->des2 == 0xffffffff) && (p->des3 == 0xffffffff))
+               if ((le32_to_cpu(p->des2) == 0xffffffff) &&
+                   (le32_to_cpu(p->des3) == 0xffffffff))
                        /* timestamp is corrupted, hence don't store it */
                        return 0;
                else
--- a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c
@@ -30,8 +30,8 @@ static int ndesc_get_tx_status(void *dat
                               struct dma_desc *p, void __iomem *ioaddr)
 {
        struct net_device_stats *stats = (struct net_device_stats *)data;
-       unsigned int tdes0 = p->des0;
-       unsigned int tdes1 = p->des1;
+       unsigned int tdes0 = le32_to_cpu(p->des0);
+       unsigned int tdes1 = le32_to_cpu(p->des1);
        int ret = tx_done;
 
        /* Get tx owner first */
@@ -77,7 +77,7 @@ static int ndesc_get_tx_status(void *dat
 
 static int ndesc_get_tx_len(struct dma_desc *p)
 {
-       return (p->des1 & RDES1_BUFFER1_SIZE_MASK);
+       return (le32_to_cpu(p->des1) & RDES1_BUFFER1_SIZE_MASK);
 }
 
 /* This function verifies if each incoming frame has some errors
@@ -88,7 +88,7 @@ static int ndesc_get_rx_status(void *dat
                               struct dma_desc *p)
 {
        int ret = good_frame;
-       unsigned int rdes0 = p->des0;
+       unsigned int rdes0 = le32_to_cpu(p->des0);
        struct net_device_stats *stats = (struct net_device_stats *)data;
 
        if (unlikely(rdes0 & RDES0_OWN))
@@ -141,8 +141,8 @@ static int ndesc_get_rx_status(void *dat
 static void ndesc_init_rx_desc(struct dma_desc *p, int disable_rx_ic, int mode,
                               int end)
 {
-       p->des0 |= RDES0_OWN;
-       p->des1 |= (BUF_SIZE_2KiB - 1) & RDES1_BUFFER1_SIZE_MASK;
+       p->des0 |= cpu_to_le32(RDES0_OWN);
+       p->des1 |= cpu_to_le32((BUF_SIZE_2KiB - 1) & RDES1_BUFFER1_SIZE_MASK);
 
        if (mode == STMMAC_CHAIN_MODE)
                ndesc_rx_set_on_chain(p, end);
@@ -150,12 +150,12 @@ static void ndesc_init_rx_desc(struct dm
                ndesc_rx_set_on_ring(p, end);
 
        if (disable_rx_ic)
-               p->des1 |= RDES1_DISABLE_IC;
+               p->des1 |= cpu_to_le32(RDES1_DISABLE_IC);
 }
 
 static void ndesc_init_tx_desc(struct dma_desc *p, int mode, int end)
 {
-       p->des0 &= ~TDES0_OWN;
+       p->des0 &= cpu_to_le32(~TDES0_OWN);
        if (mode == STMMAC_CHAIN_MODE)
                ndesc_tx_set_on_chain(p);
        else
@@ -164,27 +164,27 @@ static void ndesc_init_tx_desc(struct dm
 
 static int ndesc_get_tx_owner(struct dma_desc *p)
 {
-       return (p->des0 & TDES0_OWN) >> 31;
+       return (le32_to_cpu(p->des0) & TDES0_OWN) >> 31;
 }
 
 static void ndesc_set_tx_owner(struct dma_desc *p)
 {
-       p->des0 |= TDES0_OWN;
+       p->des0 |= cpu_to_le32(TDES0_OWN);
 }
 
 static void ndesc_set_rx_owner(struct dma_desc *p)
 {
-       p->des0 |= RDES0_OWN;
+       p->des0 |= cpu_to_le32(RDES0_OWN);
 }
 
 static int ndesc_get_tx_ls(struct dma_desc *p)
 {
-       return (p->des1 & TDES1_LAST_SEGMENT) >> 30;
+       return (le32_to_cpu(p->des1) & TDES1_LAST_SEGMENT) >> 30;
 }
 
 static void ndesc_release_tx_desc(struct dma_desc *p, int mode)
 {
-       int ter = (p->des1 & TDES1_END_RING) >> 25;
+       int ter = (le32_to_cpu(p->des1) & TDES1_END_RING) >> 25;
 
        memset(p, 0, offsetof(struct dma_desc, des2));
        if (mode == STMMAC_CHAIN_MODE)
@@ -197,7 +197,7 @@ static void ndesc_prepare_tx_desc(struct
                                  bool csum_flag, int mode, bool tx_own,
                                  bool ls)
 {
-       unsigned int tdes1 = p->des1;
+       unsigned int tdes1 = le32_to_cpu(p->des1);
 
        if (is_fs)
                tdes1 |= TDES1_FIRST_SEGMENT;
@@ -212,7 +212,7 @@ static void ndesc_prepare_tx_desc(struct
        if (ls)
                tdes1 |= TDES1_LAST_SEGMENT;
 
-       p->des1 = tdes1;
+       p->des1 = cpu_to_le32(tdes1);
 
        if (mode == STMMAC_CHAIN_MODE)
                norm_set_tx_desc_len_on_chain(p, len);
@@ -220,12 +220,12 @@ static void ndesc_prepare_tx_desc(struct
                norm_set_tx_desc_len_on_ring(p, len);
 
        if (tx_own)
-               p->des0 |= TDES0_OWN;
+               p->des0 |= cpu_to_le32(TDES0_OWN);
 }
 
 static void ndesc_set_tx_ic(struct dma_desc *p)
 {
-       p->des1 |= TDES1_INTERRUPT;
+       p->des1 |= cpu_to_le32(TDES1_INTERRUPT);
 }
 
 static int ndesc_get_rx_frame_len(struct dma_desc *p, int rx_coe_type)
@@ -241,19 +241,20 @@ static int ndesc_get_rx_frame_len(struct
        if (rx_coe_type == STMMAC_RX_COE_TYPE1)
                csum = 2;
 
-       return (((p->des0 & RDES0_FRAME_LEN_MASK) >> RDES0_FRAME_LEN_SHIFT) -
+       return (((le32_to_cpu(p->des0) & RDES0_FRAME_LEN_MASK)
+                               >> RDES0_FRAME_LEN_SHIFT) -
                csum);
 
 }
 
 static void ndesc_enable_tx_timestamp(struct dma_desc *p)
 {
-       p->des1 |= TDES1_TIME_STAMP_ENABLE;
+       p->des1 |= cpu_to_le32(TDES1_TIME_STAMP_ENABLE);
 }
 
 static int ndesc_get_tx_timestamp_status(struct dma_desc *p)
 {
-       return (p->des0 & TDES0_TIME_STAMP_STATUS) >> 17;
+       return (le32_to_cpu(p->des0) & TDES0_TIME_STAMP_STATUS) >> 17;
 }
 
 static u64 ndesc_get_timestamp(void *desc, u32 ats)
@@ -261,9 +262,9 @@ static u64 ndesc_get_timestamp(void *des
        struct dma_desc *p = (struct dma_desc *)desc;
        u64 ns;
 
-       ns = p->des2;
+       ns = le32_to_cpu(p->des2);
        /* convert high/sec time stamp value to nanosecond */
-       ns += p->des3 * 1000000000ULL;
+       ns += le32_to_cpu(p->des3) * 1000000000ULL;
 
        return ns;
 }
@@ -272,7 +273,8 @@ static int ndesc_get_rx_timestamp_status
 {
        struct dma_desc *p = (struct dma_desc *)desc;
 
-       if ((p->des2 == 0xffffffff) && (p->des3 == 0xffffffff))
+       if ((le32_to_cpu(p->des2) == 0xffffffff) &&
+           (le32_to_cpu(p->des3) == 0xffffffff))
                /* timestamp is corrupted, hence don't store it */
                return 0;
        else
--- a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
+++ b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
@@ -34,7 +34,7 @@ static int stmmac_jumbo_frm(void *p, str
        unsigned int entry = priv->cur_tx;
        struct dma_desc *desc;
        unsigned int nopaged_len = skb_headlen(skb);
-       unsigned int bmax, len;
+       unsigned int bmax, len, des2;
 
        if (priv->extend_desc)
                desc = (struct dma_desc *)(priv->dma_etx + entry);
@@ -50,16 +50,17 @@ static int stmmac_jumbo_frm(void *p, str
 
        if (nopaged_len > BUF_SIZE_8KiB) {
 
-               desc->des2 = dma_map_single(priv->device, skb->data,
-                                           bmax, DMA_TO_DEVICE);
-               if (dma_mapping_error(priv->device, desc->des2))
+               des2 = dma_map_single(priv->device, skb->data, bmax,
+                                     DMA_TO_DEVICE);
+               desc->des2 = cpu_to_le32(des2);
+               if (dma_mapping_error(priv->device, des2))
                        return -1;
 
-               priv->tx_skbuff_dma[entry].buf = desc->des2;
+               priv->tx_skbuff_dma[entry].buf = des2;
                priv->tx_skbuff_dma[entry].len = bmax;
                priv->tx_skbuff_dma[entry].is_jumbo = true;
 
-               desc->des3 = desc->des2 + BUF_SIZE_4KiB;
+               desc->des3 = cpu_to_le32(des2 + BUF_SIZE_4KiB);
                priv->hw->desc->prepare_tx_desc(desc, 1, bmax, csum,
                                                STMMAC_RING_MODE, 0, false);
                priv->tx_skbuff[entry] = NULL;
@@ -70,26 +71,28 @@ static int stmmac_jumbo_frm(void *p, str
                else
                        desc = priv->dma_tx + entry;
 
-               desc->des2 = dma_map_single(priv->device, skb->data + bmax,
-                                           len, DMA_TO_DEVICE);
-               if (dma_mapping_error(priv->device, desc->des2))
+               des2 = dma_map_single(priv->device, skb->data + bmax, len,
+                                     DMA_TO_DEVICE);
+               desc->des2 = cpu_to_le32(des2);
+               if (dma_mapping_error(priv->device, des2))
                        return -1;
-               priv->tx_skbuff_dma[entry].buf = desc->des2;
+               priv->tx_skbuff_dma[entry].buf = des2;
                priv->tx_skbuff_dma[entry].len = len;
                priv->tx_skbuff_dma[entry].is_jumbo = true;
 
-               desc->des3 = desc->des2 + BUF_SIZE_4KiB;
+               desc->des3 = cpu_to_le32(des2 + BUF_SIZE_4KiB);
                priv->hw->desc->prepare_tx_desc(desc, 0, len, csum,
                                                STMMAC_RING_MODE, 1, true);
        } else {
-               desc->des2 = dma_map_single(priv->device, skb->data,
-                                           nopaged_len, DMA_TO_DEVICE);
-               if (dma_mapping_error(priv->device, desc->des2))
+               des2 = dma_map_single(priv->device, skb->data,
+                                     nopaged_len, DMA_TO_DEVICE);
+               desc->des2 = cpu_to_le32(des2);
+               if (dma_mapping_error(priv->device, des2))
                        return -1;
-               priv->tx_skbuff_dma[entry].buf = desc->des2;
+               priv->tx_skbuff_dma[entry].buf = des2;
                priv->tx_skbuff_dma[entry].len = nopaged_len;
                priv->tx_skbuff_dma[entry].is_jumbo = true;
-               desc->des3 = desc->des2 + BUF_SIZE_4KiB;
+               desc->des3 = cpu_to_le32(des2 + BUF_SIZE_4KiB);
                priv->hw->desc->prepare_tx_desc(desc, 1, nopaged_len, csum,
                                                STMMAC_RING_MODE, 0, true);
        }
@@ -115,13 +118,13 @@ static void stmmac_refill_desc3(void *pr
 
        /* Fill DES3 in case of RING mode */
        if (priv->dma_buf_sz >= BUF_SIZE_8KiB)
-               p->des3 = p->des2 + BUF_SIZE_8KiB;
+               p->des3 = cpu_to_le32(le32_to_cpu(p->des2) + BUF_SIZE_8KiB);
 }
 
 /* In ring mode we need to fill the desc3 because it is used as buffer */
 static void stmmac_init_desc3(struct dma_desc *p)
 {
-       p->des3 = p->des2 + BUF_SIZE_8KiB;
+       p->des3 = cpu_to_le32(le32_to_cpu(p->des2) + BUF_SIZE_8KiB);
 }
 
 static void stmmac_clean_desc3(void *priv_ptr, struct dma_desc *p)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
@@ -64,7 +64,6 @@ struct stmmac_priv {
        dma_addr_t dma_tx_phy;
        int tx_coalesce;
        int hwts_tx_en;
-       spinlock_t tx_lock;
        bool tx_path_in_lpi_mode;
        struct timer_list txtimer;
        bool tso;
@@ -90,7 +89,6 @@ struct stmmac_priv {
        struct mac_device_info *hw;
        spinlock_t lock;
 
-       struct phy_device *phydev ____cacheline_aligned_in_smp;
        int oldlink;
        int speed;
        int oldduplex;
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -263,7 +263,7 @@ static void stmmac_ethtool_getdrvinfo(st
 {
        struct stmmac_priv *priv = netdev_priv(dev);
 
-       if (priv->plat->has_gmac)
+       if (priv->plat->has_gmac || priv->plat->has_gmac4)
                strlcpy(info->driver, GMAC_ETHTOOL_NAME, sizeof(info->driver));
        else
                strlcpy(info->driver, MAC100_ETHTOOL_NAME,
@@ -272,25 +272,26 @@ static void stmmac_ethtool_getdrvinfo(st
        strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
 }
 
-static int stmmac_ethtool_getsettings(struct net_device *dev,
-                                     struct ethtool_cmd *cmd)
+static int stmmac_ethtool_get_link_ksettings(struct net_device *dev,
+                                            struct ethtool_link_ksettings *cmd)
 {
        struct stmmac_priv *priv = netdev_priv(dev);
-       struct phy_device *phy = priv->phydev;
+       struct phy_device *phy = dev->phydev;
        int rc;
 
        if (priv->hw->pcs & STMMAC_PCS_RGMII ||
            priv->hw->pcs & STMMAC_PCS_SGMII) {
                struct rgmii_adv adv;
+               u32 supported, advertising, lp_advertising;
 
                if (!priv->xstats.pcs_link) {
-                       ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
-                       cmd->duplex = DUPLEX_UNKNOWN;
+                       cmd->base.speed = SPEED_UNKNOWN;
+                       cmd->base.duplex = DUPLEX_UNKNOWN;
                        return 0;
                }
-               cmd->duplex = priv->xstats.pcs_duplex;
+               cmd->base.duplex = priv->xstats.pcs_duplex;
 
-               ethtool_cmd_speed_set(cmd, priv->xstats.pcs_speed);
+               cmd->base.speed = priv->xstats.pcs_speed;
 
                /* Get and convert ADV/LP_ADV from the HW AN registers */
                if (!priv->hw->mac->pcs_get_adv_lp)
@@ -300,45 +301,59 @@ static int stmmac_ethtool_getsettings(st
 
                /* Encoding of PSE bits is defined in 802.3z, 37.2.1.4 */
 
+               ethtool_convert_link_mode_to_legacy_u32(
+                       &supported, cmd->link_modes.supported);
+               ethtool_convert_link_mode_to_legacy_u32(
+                       &advertising, cmd->link_modes.advertising);
+               ethtool_convert_link_mode_to_legacy_u32(
+                       &lp_advertising, cmd->link_modes.lp_advertising);
+
                if (adv.pause & STMMAC_PCS_PAUSE)
-                       cmd->advertising |= ADVERTISED_Pause;
+                       advertising |= ADVERTISED_Pause;
                if (adv.pause & STMMAC_PCS_ASYM_PAUSE)
-                       cmd->advertising |= ADVERTISED_Asym_Pause;
+                       advertising |= ADVERTISED_Asym_Pause;
                if (adv.lp_pause & STMMAC_PCS_PAUSE)
-                       cmd->lp_advertising |= ADVERTISED_Pause;
+                       lp_advertising |= ADVERTISED_Pause;
                if (adv.lp_pause & STMMAC_PCS_ASYM_PAUSE)
-                       cmd->lp_advertising |= ADVERTISED_Asym_Pause;
+                       lp_advertising |= ADVERTISED_Asym_Pause;
 
                /* Reg49[3] always set because ANE is always supported */
-               cmd->autoneg = ADVERTISED_Autoneg;
-               cmd->supported |= SUPPORTED_Autoneg;
-               cmd->advertising |= ADVERTISED_Autoneg;
-               cmd->lp_advertising |= ADVERTISED_Autoneg;
+               cmd->base.autoneg = ADVERTISED_Autoneg;
+               supported |= SUPPORTED_Autoneg;
+               advertising |= ADVERTISED_Autoneg;
+               lp_advertising |= ADVERTISED_Autoneg;
 
                if (adv.duplex) {
-                       cmd->supported |= (SUPPORTED_1000baseT_Full |
-                                          SUPPORTED_100baseT_Full |
-                                          SUPPORTED_10baseT_Full);
-                       cmd->advertising |= (ADVERTISED_1000baseT_Full |
-                                            ADVERTISED_100baseT_Full |
-                                            ADVERTISED_10baseT_Full);
+                       supported |= (SUPPORTED_1000baseT_Full |
+                                     SUPPORTED_100baseT_Full |
+                                     SUPPORTED_10baseT_Full);
+                       advertising |= (ADVERTISED_1000baseT_Full |
+                                       ADVERTISED_100baseT_Full |
+                                       ADVERTISED_10baseT_Full);
                } else {
-                       cmd->supported |= (SUPPORTED_1000baseT_Half |
-                                          SUPPORTED_100baseT_Half |
-                                          SUPPORTED_10baseT_Half);
-                       cmd->advertising |= (ADVERTISED_1000baseT_Half |
-                                            ADVERTISED_100baseT_Half |
-                                            ADVERTISED_10baseT_Half);
+                       supported |= (SUPPORTED_1000baseT_Half |
+                                     SUPPORTED_100baseT_Half |
+                                     SUPPORTED_10baseT_Half);
+                       advertising |= (ADVERTISED_1000baseT_Half |
+                                       ADVERTISED_100baseT_Half |
+                                       ADVERTISED_10baseT_Half);
                }
                if (adv.lp_duplex)
-                       cmd->lp_advertising |= (ADVERTISED_1000baseT_Full |
-                                               ADVERTISED_100baseT_Full |
-                                               ADVERTISED_10baseT_Full);
+                       lp_advertising |= (ADVERTISED_1000baseT_Full |
+                                          ADVERTISED_100baseT_Full |
+                                          ADVERTISED_10baseT_Full);
                else
-                       cmd->lp_advertising |= (ADVERTISED_1000baseT_Half |
-                                               ADVERTISED_100baseT_Half |
-                                               ADVERTISED_10baseT_Half);
-               cmd->port = PORT_OTHER;
+                       lp_advertising |= (ADVERTISED_1000baseT_Half |
+                                          ADVERTISED_100baseT_Half |
+                                          ADVERTISED_10baseT_Half);
+               cmd->base.port = PORT_OTHER;
+
+               ethtool_convert_legacy_u32_to_link_mode(
+                       cmd->link_modes.supported, supported);
+               ethtool_convert_legacy_u32_to_link_mode(
+                       cmd->link_modes.advertising, advertising);
+               ethtool_convert_legacy_u32_to_link_mode(
+                       cmd->link_modes.lp_advertising, lp_advertising);
 
                return 0;
        }
@@ -353,16 +368,16 @@ static int stmmac_ethtool_getsettings(st
                "link speed / duplex setting\n", dev->name);
                return -EBUSY;
        }
-       cmd->transceiver = XCVR_INTERNAL;
-       rc = phy_ethtool_gset(phy, cmd);
+       rc = phy_ethtool_ksettings_get(phy, cmd);
        return rc;
 }
 
-static int stmmac_ethtool_setsettings(struct net_device *dev,
-                                     struct ethtool_cmd *cmd)
+static int
+stmmac_ethtool_set_link_ksettings(struct net_device *dev,
+                                 const struct ethtool_link_ksettings *cmd)
 {
        struct stmmac_priv *priv = netdev_priv(dev);
-       struct phy_device *phy = priv->phydev;
+       struct phy_device *phy = dev->phydev;
        int rc;
 
        if (priv->hw->pcs & STMMAC_PCS_RGMII ||
@@ -370,7 +385,7 @@ static int stmmac_ethtool_setsettings(st
                u32 mask = ADVERTISED_Autoneg | ADVERTISED_Pause;
 
                /* Only support ANE */
-               if (cmd->autoneg != AUTONEG_ENABLE)
+               if (cmd->base.autoneg != AUTONEG_ENABLE)
                        return -EINVAL;
 
                mask &= (ADVERTISED_1000baseT_Half |
@@ -391,9 +406,7 @@ static int stmmac_ethtool_setsettings(st
                return 0;
        }
 
-       spin_lock(&priv->lock);
-       rc = phy_ethtool_sset(phy, cmd);
-       spin_unlock(&priv->lock);
+       rc = phy_ethtool_ksettings_set(phy, cmd);
 
        return rc;
 }
@@ -433,7 +446,7 @@ static void stmmac_ethtool_gregs(struct
 
        memset(reg_space, 0x0, REG_SPACE_SIZE);
 
-       if (!priv->plat->has_gmac) {
+       if (!(priv->plat->has_gmac || priv->plat->has_gmac4)) {
                /* MAC registers */
                for (i = 0; i < 12; i++)
                        reg_space[i] = readl(priv->ioaddr + (i * 4));
@@ -471,12 +484,12 @@ stmmac_get_pauseparam(struct net_device
                if (!adv_lp.pause)
                        return;
        } else {
-               if (!(priv->phydev->supported & SUPPORTED_Pause) ||
-                   !(priv->phydev->supported & SUPPORTED_Asym_Pause))
+               if (!(netdev->phydev->supported & SUPPORTED_Pause) ||
+                   !(netdev->phydev->supported & SUPPORTED_Asym_Pause))
                        return;
        }
 
-       pause->autoneg = priv->phydev->autoneg;
+       pause->autoneg = netdev->phydev->autoneg;
 
        if (priv->flow_ctrl & FLOW_RX)
                pause->rx_pause = 1;
@@ -490,7 +503,7 @@ stmmac_set_pauseparam(struct net_device
                      struct ethtool_pauseparam *pause)
 {
        struct stmmac_priv *priv = netdev_priv(netdev);
-       struct phy_device *phy = priv->phydev;
+       struct phy_device *phy = netdev->phydev;
        int new_pause = FLOW_OFF;
 
        if (priv->hw->pcs && priv->hw->mac->pcs_get_adv_lp) {
@@ -550,7 +563,7 @@ static void stmmac_get_ethtool_stats(str
                        }
                }
                if (priv->eee_enabled) {
-                       int val = phy_get_eee_err(priv->phydev);
+                       int val = phy_get_eee_err(dev->phydev);
                        if (val)
                                priv->xstats.phy_eee_wakeup_error_n = val;
                }
@@ -669,7 +682,7 @@ static int stmmac_ethtool_op_get_eee(str
        edata->eee_active = priv->eee_active;
        edata->tx_lpi_timer = priv->tx_lpi_timer;
 
-       return phy_ethtool_get_eee(priv->phydev, edata);
+       return phy_ethtool_get_eee(dev->phydev, edata);
 }
 
 static int stmmac_ethtool_op_set_eee(struct net_device *dev,
@@ -694,7 +707,7 @@ static int stmmac_ethtool_op_set_eee(str
                priv->tx_lpi_timer = edata->tx_lpi_timer;
        }
 
-       return phy_ethtool_set_eee(priv->phydev, edata);
+       return phy_ethtool_set_eee(dev->phydev, edata);
 }
 
 static u32 stmmac_usec2riwt(u32 usec, struct stmmac_priv *priv)
@@ -853,8 +866,6 @@ static int stmmac_set_tunable(struct net
 static const struct ethtool_ops stmmac_ethtool_ops = {
        .begin = stmmac_check_if_running,
        .get_drvinfo = stmmac_ethtool_getdrvinfo,
-       .get_settings = stmmac_ethtool_getsettings,
-       .set_settings = stmmac_ethtool_setsettings,
        .get_msglevel = stmmac_ethtool_getmsglevel,
        .set_msglevel = stmmac_ethtool_setmsglevel,
        .get_regs = stmmac_ethtool_gregs,
@@ -874,6 +885,8 @@ static const struct ethtool_ops stmmac_e
        .set_coalesce = stmmac_set_coalesce,
        .get_tunable = stmmac_get_tunable,
        .set_tunable = stmmac_set_tunable,
+       .get_link_ksettings = stmmac_ethtool_get_link_ksettings,
+       .set_link_ksettings = stmmac_ethtool_set_link_ksettings,
 };
 
 void stmmac_set_ethtool_ops(struct net_device *netdev)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -105,8 +105,8 @@ module_param(eee_timer, int, S_IRUGO | S
 MODULE_PARM_DESC(eee_timer, "LPI tx expiration time in msec");
 #define STMMAC_LPI_T(x) (jiffies + msecs_to_jiffies(x))
 
-/* By default the driver will use the ring mode to manage tx and rx descriptors
- * but passing this value so user can force to use the chain instead of the ring
+/* By default the driver will use the ring mode to manage tx and rx descriptors,
+ * but allow user to force to use the chain instead of the ring
  */
 static unsigned int chain_mode;
 module_param(chain_mode, int, S_IRUGO);
@@ -221,7 +221,8 @@ static inline u32 stmmac_rx_dirty(struct
  */
 static inline void stmmac_hw_fix_mac_speed(struct stmmac_priv *priv)
 {
-       struct phy_device *phydev = priv->phydev;
+       struct net_device *ndev = priv->dev;
+       struct phy_device *phydev = ndev->phydev;
 
        if (likely(priv->plat->fix_mac_speed))
                priv->plat->fix_mac_speed(priv->plat->bsp_priv, phydev->speed);
@@ -279,6 +280,7 @@ static void stmmac_eee_ctrl_timer(unsign
  */
 bool stmmac_eee_init(struct stmmac_priv *priv)
 {
+       struct net_device *ndev = priv->dev;
        unsigned long flags;
        int interface = priv->plat->interface;
        bool ret = false;
@@ -301,7 +303,7 @@ bool stmmac_eee_init(struct stmmac_priv
                int tx_lpi_timer = priv->tx_lpi_timer;
 
                /* Check if the PHY supports EEE */
-               if (phy_init_eee(priv->phydev, 1)) {
+               if (phy_init_eee(ndev->phydev, 1)) {
                        /* To manage at run-time if the EEE cannot be supported
                         * anymore (for example because the lp caps have been
                         * changed).
@@ -309,7 +311,7 @@ bool stmmac_eee_init(struct stmmac_priv
                         */
                        spin_lock_irqsave(&priv->lock, flags);
                        if (priv->eee_active) {
-                               pr_debug("stmmac: disable EEE\n");
+                               netdev_dbg(priv->dev, "disable EEE\n");
                                del_timer_sync(&priv->eee_ctrl_timer);
                                priv->hw->mac->set_eee_timer(priv->hw, 0,
                                                             tx_lpi_timer);
@@ -333,12 +335,12 @@ bool stmmac_eee_init(struct stmmac_priv
                                                     tx_lpi_timer);
                }
                /* Set HW EEE according to the speed */
-               priv->hw->mac->set_eee_pls(priv->hw, priv->phydev->link);
+               priv->hw->mac->set_eee_pls(priv->hw, ndev->phydev->link);
 
                ret = true;
                spin_unlock_irqrestore(&priv->lock, flags);
 
-               pr_debug("stmmac: Energy-Efficient Ethernet initialized\n");
+               netdev_dbg(priv->dev, "Energy-Efficient Ethernet initialized\n");
        }
 out:
        return ret;
@@ -456,8 +458,8 @@ static int stmmac_hwtstamp_ioctl(struct
                           sizeof(struct hwtstamp_config)))
                return -EFAULT;
 
-       pr_debug("%s config flags:0x%x, tx_type:0x%x, rx_filter:0x%x\n",
-                __func__, config.flags, config.tx_type, config.rx_filter);
+       netdev_dbg(priv->dev, "%s config flags:0x%x, tx_type:0x%x, rx_filter:0x%x\n",
+                  __func__, config.flags, config.tx_type, config.rx_filter);
 
        /* reserved for future extensions */
        if (config.flags)
@@ -712,7 +714,7 @@ static void stmmac_release_ptp(struct st
 static void stmmac_adjust_link(struct net_device *dev)
 {
        struct stmmac_priv *priv = netdev_priv(dev);
-       struct phy_device *phydev = priv->phydev;
+       struct phy_device *phydev = dev->phydev;
        unsigned long flags;
        int new_state = 0;
        unsigned int fc = priv->flow_ctrl, pause_time = priv->pause;
@@ -765,9 +767,9 @@ static void stmmac_adjust_link(struct ne
                                stmmac_hw_fix_mac_speed(priv);
                                break;
                        default:
-                               if (netif_msg_link(priv))
-                                       pr_warn("%s: Speed (%d) not 10/100\n",
-                                               dev->name, phydev->speed);
+                               netif_warn(priv, link, priv->dev,
+                                          "Speed (%d) not 10/100\n",
+                                          phydev->speed);
                                break;
                        }
 
@@ -820,10 +822,10 @@ static void stmmac_check_pcs_mode(struct
                    (interface == PHY_INTERFACE_MODE_RGMII_ID) ||
                    (interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
                    (interface == PHY_INTERFACE_MODE_RGMII_TXID)) {
-                       pr_debug("STMMAC: PCS RGMII support enable\n");
+                       netdev_dbg(priv->dev, "PCS RGMII support enabled\n");
                        priv->hw->pcs = STMMAC_PCS_RGMII;
                } else if (interface == PHY_INTERFACE_MODE_SGMII) {
-                       pr_debug("STMMAC: PCS SGMII support enable\n");
+                       netdev_dbg(priv->dev, "PCS SGMII support enabled\n");
                        priv->hw->pcs = STMMAC_PCS_SGMII;
                }
        }
@@ -858,15 +860,15 @@ static int stmmac_init_phy(struct net_de
 
                snprintf(phy_id_fmt, MII_BUS_ID_SIZE + 3, PHY_ID_FMT, bus_id,
                         priv->plat->phy_addr);
-               pr_debug("stmmac_init_phy:  trying to attach to %s\n",
-                        phy_id_fmt);
+               netdev_dbg(priv->dev, "%s: trying to attach to %s\n", __func__,
+                          phy_id_fmt);
 
                phydev = phy_connect(dev, phy_id_fmt, &stmmac_adjust_link,
                                     interface);
        }
 
        if (IS_ERR_OR_NULL(phydev)) {
-               pr_err("%s: Could not attach to PHY\n", dev->name);
+               netdev_err(priv->dev, "Could not attach to PHY\n");
                if (!phydev)
                        return -ENODEV;
 
@@ -899,10 +901,8 @@ static int stmmac_init_phy(struct net_de
        if (phydev->is_pseudo_fixed_link)
                phydev->irq = PHY_POLL;
 
-       pr_debug("stmmac_init_phy:  %s: attached to PHY (UID 0x%x)"
-                " Link = %d\n", dev->name, phydev->phy_id, phydev->link);
-
-       priv->phydev = phydev;
+       netdev_dbg(priv->dev, "%s: attached to PHY (UID 0x%x) Link = %d\n",
+                  __func__, phydev->phy_id, phydev->link);
 
        return 0;
 }
@@ -988,7 +988,8 @@ static int stmmac_init_rx_buffers(struct
 
        skb = __netdev_alloc_skb_ip_align(priv->dev, priv->dma_buf_sz, flags);
        if (!skb) {
-               pr_err("%s: Rx init fails; skb is NULL\n", __func__);
+               netdev_err(priv->dev,
+                          "%s: Rx init fails; skb is NULL\n", __func__);
                return -ENOMEM;
        }
        priv->rx_skbuff[i] = skb;
@@ -996,15 +997,15 @@ static int stmmac_init_rx_buffers(struct
                                                priv->dma_buf_sz,
                                                DMA_FROM_DEVICE);
        if (dma_mapping_error(priv->device, priv->rx_skbuff_dma[i])) {
-               pr_err("%s: DMA mapping error\n", __func__);
+               netdev_err(priv->dev, "%s: DMA mapping error\n", __func__);
                dev_kfree_skb_any(skb);
                return -EINVAL;
        }
 
        if (priv->synopsys_id >= DWMAC_CORE_4_00)
-               p->des0 = priv->rx_skbuff_dma[i];
+               p->des0 = cpu_to_le32(priv->rx_skbuff_dma[i]);
        else
-               p->des2 = priv->rx_skbuff_dma[i];
+               p->des2 = cpu_to_le32(priv->rx_skbuff_dma[i]);
 
        if ((priv->hw->mode->init_desc3) &&
            (priv->dma_buf_sz == BUF_SIZE_16KiB))
@@ -1046,13 +1047,14 @@ static int init_dma_desc_rings(struct ne
 
        priv->dma_buf_sz = bfsize;
 
-       if (netif_msg_probe(priv)) {
-               pr_debug("(%s) dma_rx_phy=0x%08x dma_tx_phy=0x%08x\n", __func__,
-                        (u32) priv->dma_rx_phy, (u32) priv->dma_tx_phy);
+       netif_dbg(priv, probe, priv->dev,
+                 "(%s) dma_rx_phy=0x%08x dma_tx_phy=0x%08x\n",
+                 __func__, (u32)priv->dma_rx_phy, (u32)priv->dma_tx_phy);
+
+       /* RX INITIALIZATION */
+       netif_dbg(priv, probe, priv->dev,
+                 "SKB addresses:\nskb\t\tskb data\tdma data\n");
 
-               /* RX INITIALIZATION */
-               pr_debug("\tSKB addresses:\nskb\t\tskb data\tdma data\n");
-       }
        for (i = 0; i < DMA_RX_SIZE; i++) {
                struct dma_desc *p;
                if (priv->extend_desc)
@@ -1064,10 +1066,9 @@ static int init_dma_desc_rings(struct ne
                if (ret)
                        goto err_init_rx_buffers;
 
-               if (netif_msg_probe(priv))
-                       pr_debug("[%p]\t[%p]\t[%x]\n", priv->rx_skbuff[i],
-                                priv->rx_skbuff[i]->data,
-                                (unsigned int)priv->rx_skbuff_dma[i]);
+               netif_dbg(priv, probe, priv->dev, "[%p]\t[%p]\t[%x]\n",
+                         priv->rx_skbuff[i], priv->rx_skbuff[i]->data,
+                         (unsigned int)priv->rx_skbuff_dma[i]);
        }
        priv->cur_rx = 0;
        priv->dirty_rx = (unsigned int)(i - DMA_RX_SIZE);
@@ -1322,7 +1323,7 @@ static void stmmac_tx_clean(struct stmma
        unsigned int bytes_compl = 0, pkts_compl = 0;
        unsigned int entry = priv->dirty_tx;
 
-       spin_lock(&priv->tx_lock);
+       netif_tx_lock(priv->dev);
 
        priv->xstats.tx_clean++;
 
@@ -1398,22 +1399,17 @@ static void stmmac_tx_clean(struct stmma
        netdev_completed_queue(priv->dev, pkts_compl, bytes_compl);
 
        if (unlikely(netif_queue_stopped(priv->dev) &&
-                    stmmac_tx_avail(priv) > STMMAC_TX_THRESH)) {
-               netif_tx_lock(priv->dev);
-               if (netif_queue_stopped(priv->dev) &&
-                   stmmac_tx_avail(priv) > STMMAC_TX_THRESH) {
-                       if (netif_msg_tx_done(priv))
-                               pr_debug("%s: restart transmit\n", __func__);
-                       netif_wake_queue(priv->dev);
-               }
-               netif_tx_unlock(priv->dev);
+           stmmac_tx_avail(priv) > STMMAC_TX_THRESH)) {
+               netif_dbg(priv, tx_done, priv->dev,
+                         "%s: restart transmit\n", __func__);
+               netif_wake_queue(priv->dev);
        }
 
        if ((priv->eee_enabled) && (!priv->tx_path_in_lpi_mode)) {
                stmmac_enable_eee_mode(priv);
                mod_timer(&priv->eee_ctrl_timer, STMMAC_LPI_T(eee_timer));
        }
-       spin_unlock(&priv->tx_lock);
+       netif_tx_unlock(priv->dev);
 }
 
 static inline void stmmac_enable_dma_irq(struct stmmac_priv *priv)
@@ -1517,7 +1513,7 @@ static void stmmac_mmc_setup(struct stmm
                dwmac_mmc_ctrl(priv->mmcaddr, mode);
                memset(&priv->mmc, 0, sizeof(struct stmmac_counters));
        } else
-               pr_info(" No MAC Management Counters available\n");
+               netdev_info(priv->dev, "No MAC Management Counters available\n");
 }
 
 /**
@@ -1530,18 +1526,18 @@ static void stmmac_mmc_setup(struct stmm
 static void stmmac_selec_desc_mode(struct stmmac_priv *priv)
 {
        if (priv->plat->enh_desc) {
-               pr_info(" Enhanced/Alternate descriptors\n");
+               dev_info(priv->device, "Enhanced/Alternate descriptors\n");
 
                /* GMAC older than 3.50 has no extended descriptors */
                if (priv->synopsys_id >= DWMAC_CORE_3_50) {
-                       pr_info("\tEnabled extended descriptors\n");
+                       dev_info(priv->device, "Enabled extended descriptors\n");
                        priv->extend_desc = 1;
                } else
-                       pr_warn("Extended descriptors not supported\n");
+                       dev_warn(priv->device, "Extended descriptors not supported\n");
 
                priv->hw->desc = &enh_desc_ops;
        } else {
-               pr_info(" Normal descriptors\n");
+               dev_info(priv->device, "Normal descriptors\n");
                priv->hw->desc = &ndesc_ops;
        }
 }
@@ -1582,8 +1578,8 @@ static void stmmac_check_ether_addr(stru
                                             priv->dev->dev_addr, 0);
                if (!is_valid_ether_addr(priv->dev->dev_addr))
                        eth_hw_addr_random(priv->dev);
-               pr_info("%s: device MAC address %pM\n", priv->dev->name,
-                       priv->dev->dev_addr);
+               netdev_info(priv->dev, "device MAC address %pM\n",
+                           priv->dev->dev_addr);
        }
 }
 
@@ -1597,16 +1593,12 @@ static void stmmac_check_ether_addr(stru
  */
 static int stmmac_init_dma_engine(struct stmmac_priv *priv)
 {
-       int pbl = DEFAULT_DMA_PBL, fixed_burst = 0, aal = 0;
-       int mixed_burst = 0;
        int atds = 0;
        int ret = 0;
 
-       if (priv->plat->dma_cfg) {
-               pbl = priv->plat->dma_cfg->pbl;
-               fixed_burst = priv->plat->dma_cfg->fixed_burst;
-               mixed_burst = priv->plat->dma_cfg->mixed_burst;
-               aal = priv->plat->dma_cfg->aal;
+       if (!priv->plat->dma_cfg || !priv->plat->dma_cfg->pbl) {
+               dev_err(priv->device, "Invalid DMA configuration\n");
+               return -EINVAL;
        }
 
        if (priv->extend_desc && (priv->mode == STMMAC_RING_MODE))
@@ -1618,8 +1610,8 @@ static int stmmac_init_dma_engine(struct
                return ret;
        }
 
-       priv->hw->dma->init(priv->ioaddr, pbl, fixed_burst, mixed_burst,
-                           aal, priv->dma_tx_phy, priv->dma_rx_phy, atds);
+       priv->hw->dma->init(priv->ioaddr, priv->plat->dma_cfg,
+                           priv->dma_tx_phy, priv->dma_rx_phy, atds);
 
        if (priv->synopsys_id >= DWMAC_CORE_4_00) {
                priv->rx_tail_addr = priv->dma_rx_phy +
@@ -1691,7 +1683,8 @@ static int stmmac_hw_setup(struct net_de
        /* DMA initialization and SW reset */
        ret = stmmac_init_dma_engine(priv);
        if (ret < 0) {
-               pr_err("%s: DMA engine initialization failed\n", __func__);
+               netdev_err(priv->dev, "%s: DMA engine initialization failed\n",
+                          __func__);
                return ret;
        }
 
@@ -1720,7 +1713,7 @@ static int stmmac_hw_setup(struct net_de
 
        ret = priv->hw->mac->rx_ipc(priv->hw);
        if (!ret) {
-               pr_warn(" RX IPC Checksum Offload disabled\n");
+               netdev_warn(priv->dev, "RX IPC Checksum Offload disabled\n");
                priv->plat->rx_coe = STMMAC_RX_COE_NONE;
                priv->hw->rx_csum = 0;
        }
@@ -1745,10 +1738,11 @@ static int stmmac_hw_setup(struct net_de
 #ifdef CONFIG_DEBUG_FS
        ret = stmmac_init_fs(dev);
        if (ret < 0)
-               pr_warn("%s: failed debugFS registration\n", __func__);
+               netdev_warn(priv->dev, "%s: failed debugFS registration\n",
+                           __func__);
 #endif
        /* Start the ball rolling... */
-       pr_debug("%s: DMA RX/TX processes started...\n", dev->name);
+       netdev_dbg(priv->dev, "DMA RX/TX processes started...\n");
        priv->hw->dma->start_tx(priv->ioaddr);
        priv->hw->dma->start_rx(priv->ioaddr);
 
@@ -1803,8 +1797,9 @@ static int stmmac_open(struct net_device
            priv->hw->pcs != STMMAC_PCS_RTBI) {
                ret = stmmac_init_phy(dev);
                if (ret) {
-                       pr_err("%s: Cannot attach to PHY (error: %d)\n",
-                              __func__, ret);
+                       netdev_err(priv->dev,
+                                  "%s: Cannot attach to PHY (error: %d)\n",
+                                  __func__, ret);
                        return ret;
                }
        }
@@ -1819,33 +1814,36 @@ static int stmmac_open(struct net_device
 
        ret = alloc_dma_desc_resources(priv);
        if (ret < 0) {
-               pr_err("%s: DMA descriptors allocation failed\n", __func__);
+               netdev_err(priv->dev, "%s: DMA descriptors allocation failed\n",
+                          __func__);
                goto dma_desc_error;
        }
 
        ret = init_dma_desc_rings(dev, GFP_KERNEL);
        if (ret < 0) {
-               pr_err("%s: DMA descriptors initialization failed\n", __func__);
+               netdev_err(priv->dev, "%s: DMA descriptors initialization failed\n",
+                          __func__);
                goto init_error;
        }
 
        ret = stmmac_hw_setup(dev, true);
        if (ret < 0) {
-               pr_err("%s: Hw setup failed\n", __func__);
+               netdev_err(priv->dev, "%s: Hw setup failed\n", __func__);
                goto init_error;
        }
 
        stmmac_init_tx_coalesce(priv);
 
-       if (priv->phydev)
-               phy_start(priv->phydev);
+       if (dev->phydev)
+               phy_start(dev->phydev);
 
        /* Request the IRQ lines */
        ret = request_irq(dev->irq, stmmac_interrupt,
                          IRQF_SHARED, dev->name, dev);
        if (unlikely(ret < 0)) {
-               pr_err("%s: ERROR: allocating the IRQ %d (error: %d)\n",
-                      __func__, dev->irq, ret);
+               netdev_err(priv->dev,
+                          "%s: ERROR: allocating the IRQ %d (error: %d)\n",
+                          __func__, dev->irq, ret);
                goto init_error;
        }
 
@@ -1854,8 +1852,9 @@ static int stmmac_open(struct net_device
                ret = request_irq(priv->wol_irq, stmmac_interrupt,
                                  IRQF_SHARED, dev->name, dev);
                if (unlikely(ret < 0)) {
-                       pr_err("%s: ERROR: allocating the WoL IRQ %d (%d)\n",
-                              __func__, priv->wol_irq, ret);
+                       netdev_err(priv->dev,
+                                  "%s: ERROR: allocating the WoL IRQ %d (%d)\n",
+                                  __func__, priv->wol_irq, ret);
                        goto wolirq_error;
                }
        }
@@ -1865,8 +1864,9 @@ static int stmmac_open(struct net_device
                ret = request_irq(priv->lpi_irq, stmmac_interrupt, IRQF_SHARED,
                                  dev->name, dev);
                if (unlikely(ret < 0)) {
-                       pr_err("%s: ERROR: allocating the LPI IRQ %d (%d)\n",
-                              __func__, priv->lpi_irq, ret);
+                       netdev_err(priv->dev,
+                                  "%s: ERROR: allocating the LPI IRQ %d (%d)\n",
+                                  __func__, priv->lpi_irq, ret);
                        goto lpiirq_error;
                }
        }
@@ -1885,8 +1885,8 @@ wolirq_error:
 init_error:
        free_dma_desc_resources(priv);
 dma_desc_error:
-       if (priv->phydev)
-               phy_disconnect(priv->phydev);
+       if (dev->phydev)
+               phy_disconnect(dev->phydev);
 
        return ret;
 }
@@ -1905,10 +1905,9 @@ static int stmmac_release(struct net_dev
                del_timer_sync(&priv->eee_ctrl_timer);
 
        /* Stop and disconnect the PHY */
-       if (priv->phydev) {
-               phy_stop(priv->phydev);
-               phy_disconnect(priv->phydev);
-               priv->phydev = NULL;
+       if (dev->phydev) {
+               phy_stop(dev->phydev);
+               phy_disconnect(dev->phydev);
        }
 
        netif_stop_queue(dev);
@@ -1968,13 +1967,13 @@ static void stmmac_tso_allocator(struct
                priv->cur_tx = STMMAC_GET_ENTRY(priv->cur_tx, DMA_TX_SIZE);
                desc = priv->dma_tx + priv->cur_tx;
 
-               desc->des0 = des + (total_len - tmp_len);
+               desc->des0 = cpu_to_le32(des + (total_len - tmp_len));
                buff_size = tmp_len >= TSO_MAX_BUFF_SIZE ?
                            TSO_MAX_BUFF_SIZE : tmp_len;
 
                priv->hw->desc->prepare_tso_tx_desc(desc, 0, buff_size,
                        0, 1,
-                       (last_segment) && (tmp_len <= TSO_MAX_BUFF_SIZE),
+                       (last_segment) && (buff_size < TSO_MAX_BUFF_SIZE),
                        0, 0);
 
                tmp_len -= TSO_MAX_BUFF_SIZE;
@@ -2019,8 +2018,6 @@ static netdev_tx_t stmmac_tso_xmit(struc
        u8 proto_hdr_len;
        int i;
 
-       spin_lock(&priv->tx_lock);
-
        /* Compute header lengths */
        proto_hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
 
@@ -2030,9 +2027,10 @@ static netdev_tx_t stmmac_tso_xmit(struc
                if (!netif_queue_stopped(dev)) {
                        netif_stop_queue(dev);
                        /* This is a hard error, log it. */
-                       pr_err("%s: Tx Ring full when queue awake\n", __func__);
+                       netdev_err(priv->dev,
+                                  "%s: Tx Ring full when queue awake\n",
+                                  __func__);
                }
-               spin_unlock(&priv->tx_lock);
                return NETDEV_TX_BUSY;
        }
 
@@ -2070,11 +2068,11 @@ static netdev_tx_t stmmac_tso_xmit(struc
        priv->tx_skbuff_dma[first_entry].len = skb_headlen(skb);
        priv->tx_skbuff[first_entry] = skb;
 
-       first->des0 = des;
+       first->des0 = cpu_to_le32(des);
 
        /* Fill start of payload in buff2 of first descriptor */
        if (pay_len)
-               first->des1 =  des + proto_hdr_len;
+               first->des1 = cpu_to_le32(des + proto_hdr_len);
 
        /* If needed take extra descriptors to fill the remaining payload */
        tmp_pay_len = pay_len - TSO_MAX_BUFF_SIZE;
@@ -2103,8 +2101,8 @@ static netdev_tx_t stmmac_tso_xmit(struc
        priv->cur_tx = STMMAC_GET_ENTRY(priv->cur_tx, DMA_TX_SIZE);
 
        if (unlikely(stmmac_tx_avail(priv) <= (MAX_SKB_FRAGS + 1))) {
-               if (netif_msg_hw(priv))
-                       pr_debug("%s: stop transmitted packets\n", __func__);
+               netif_dbg(priv, hw, priv->dev, "%s: stop transmitted packets\n",
+                         __func__);
                netif_stop_queue(dev);
        }
 
@@ -2155,7 +2153,7 @@ static netdev_tx_t stmmac_tso_xmit(struc
         * descriptor and then barrier is needed to make sure that
         * all is coherent before granting the DMA engine.
         */
-       smp_wmb();
+       dma_wmb();
 
        if (netif_msg_pktdata(priv)) {
                pr_info("%s: curr=%d dirty=%d f=%d, e=%d, f_p=%p, nfrags %d\n",
@@ -2174,11 +2172,9 @@ static netdev_tx_t stmmac_tso_xmit(struc
        priv->hw->dma->set_tx_tail_ptr(priv->ioaddr, priv->tx_tail_addr,
                                       STMMAC_CHAN0);
 
-       spin_unlock(&priv->tx_lock);
        return NETDEV_TX_OK;
 
 dma_map_err:
-       spin_unlock(&priv->tx_lock);
        dev_err(priv->device, "Tx dma map failed\n");
        dev_kfree_skb(skb);
        priv->dev->stats.tx_dropped++;
@@ -2210,14 +2206,13 @@ static netdev_tx_t stmmac_xmit(struct sk
                        return stmmac_tso_xmit(skb, dev);
        }
 
-       spin_lock(&priv->tx_lock);
-
        if (unlikely(stmmac_tx_avail(priv) < nfrags + 1)) {
-               spin_unlock(&priv->tx_lock);
                if (!netif_queue_stopped(dev)) {
                        netif_stop_queue(dev);
                        /* This is a hard error, log it. */
-                       pr_err("%s: Tx Ring full when queue awake\n", __func__);
+                       netdev_err(priv->dev,
+                                  "%s: Tx Ring full when queue awake\n",
+                                  __func__);
                }
                return NETDEV_TX_BUSY;
        }
@@ -2270,13 +2265,11 @@ static netdev_tx_t stmmac_xmit(struct sk
 
                priv->tx_skbuff[entry] = NULL;
 
-               if (unlikely(priv->synopsys_id >= DWMAC_CORE_4_00)) {
-                       desc->des0 = des;
-                       priv->tx_skbuff_dma[entry].buf = desc->des0;
-               } else {
-                       desc->des2 = des;
-                       priv->tx_skbuff_dma[entry].buf = desc->des2;
-               }
+               priv->tx_skbuff_dma[entry].buf = des;
+               if (unlikely(priv->synopsys_id >= DWMAC_CORE_4_00))
+                       desc->des0 = cpu_to_le32(des);
+               else
+                       desc->des2 = cpu_to_le32(des);
 
                priv->tx_skbuff_dma[entry].map_as_page = true;
                priv->tx_skbuff_dma[entry].len = len;
@@ -2294,9 +2287,10 @@ static netdev_tx_t stmmac_xmit(struct sk
        if (netif_msg_pktdata(priv)) {
                void *tx_head;
 
-               pr_debug("%s: curr=%d dirty=%d f=%d, e=%d, first=%p, nfrags=%d",
-                        __func__, priv->cur_tx, priv->dirty_tx, first_entry,
-                        entry, first, nfrags);
+               netdev_dbg(priv->dev,
+                          "%s: curr=%d dirty=%d f=%d, e=%d, first=%p, nfrags=%d",
+                          __func__, priv->cur_tx, priv->dirty_tx, first_entry,
+                          entry, first, nfrags);
 
                if (priv->extend_desc)
                        tx_head = (void *)priv->dma_etx;
@@ -2305,13 +2299,13 @@ static netdev_tx_t stmmac_xmit(struct sk
 
                priv->hw->desc->display_ring(tx_head, DMA_TX_SIZE, false);
 
-               pr_debug(">>> frame to be transmitted: ");
+               netdev_dbg(priv->dev, ">>> frame to be transmitted: ");
                print_pkt(skb->data, skb->len);
        }
 
        if (unlikely(stmmac_tx_avail(priv) <= (MAX_SKB_FRAGS + 1))) {
-               if (netif_msg_hw(priv))
-                       pr_debug("%s: stop transmitted packets\n", __func__);
+               netif_dbg(priv, hw, priv->dev, "%s: stop transmitted packets\n",
+                         __func__);
                netif_stop_queue(dev);
        }
 
@@ -2347,13 +2341,11 @@ static netdev_tx_t stmmac_xmit(struct sk
                if (dma_mapping_error(priv->device, des))
                        goto dma_map_err;
 
-               if (unlikely(priv->synopsys_id >= DWMAC_CORE_4_00)) {
-                       first->des0 = des;
-                       priv->tx_skbuff_dma[first_entry].buf = first->des0;
-               } else {
-                       first->des2 = des;
-                       priv->tx_skbuff_dma[first_entry].buf = first->des2;
-               }
+               priv->tx_skbuff_dma[first_entry].buf = des;
+               if (unlikely(priv->synopsys_id >= DWMAC_CORE_4_00))
+                       first->des0 = cpu_to_le32(des);
+               else
+                       first->des2 = cpu_to_le32(des);
 
                priv->tx_skbuff_dma[first_entry].len = nopaged_len;
                priv->tx_skbuff_dma[first_entry].last_segment = last_segment;
@@ -2374,7 +2366,7 @@ static netdev_tx_t stmmac_xmit(struct sk
                 * descriptor and then barrier is needed to make sure that
                 * all is coherent before granting the DMA engine.
                 */
-               smp_wmb();
+               dma_wmb();
        }
 
        netdev_sent_queue(dev, skb->len);
@@ -2385,12 +2377,10 @@ static netdev_tx_t stmmac_xmit(struct sk
                priv->hw->dma->set_tx_tail_ptr(priv->ioaddr, priv->tx_tail_addr,
                                               STMMAC_CHAN0);
 
-       spin_unlock(&priv->tx_lock);
        return NETDEV_TX_OK;
 
 dma_map_err:
-       spin_unlock(&priv->tx_lock);
-       dev_err(priv->device, "Tx dma map failed\n");
+       netdev_err(priv->dev, "Tx DMA map failed\n");
        dev_kfree_skb(skb);
        priv->dev->stats.tx_dropped++;
        return NETDEV_TX_OK;
@@ -2461,16 +2451,16 @@ static inline void stmmac_rx_refill(stru
                                           DMA_FROM_DEVICE);
                        if (dma_mapping_error(priv->device,
                                              priv->rx_skbuff_dma[entry])) {
-                               dev_err(priv->device, "Rx dma map failed\n");
+                               netdev_err(priv->dev, "Rx DMA map failed\n");
                                dev_kfree_skb(skb);
                                break;
                        }
 
                        if (unlikely(priv->synopsys_id >= DWMAC_CORE_4_00)) {
-                               p->des0 = priv->rx_skbuff_dma[entry];
+                               p->des0 = cpu_to_le32(priv->rx_skbuff_dma[entry]);
                                p->des1 = 0;
                        } else {
-                               p->des2 = priv->rx_skbuff_dma[entry];
+                               p->des2 = cpu_to_le32(priv->rx_skbuff_dma[entry]);
                        }
                        if (priv->hw->mode->refill_desc3)
                                priv->hw->mode->refill_desc3(priv, p);
@@ -2478,17 +2468,17 @@ static inline void stmmac_rx_refill(stru
                        if (priv->rx_zeroc_thresh > 0)
                                priv->rx_zeroc_thresh--;
 
-                       if (netif_msg_rx_status(priv))
-                               pr_debug("\trefill entry #%d\n", entry);
+                       netif_dbg(priv, rx_status, priv->dev,
+                                 "refill entry #%d\n", entry);
                }
-               wmb();
+               dma_wmb();
 
                if (unlikely(priv->synopsys_id >= DWMAC_CORE_4_00))
                        priv->hw->desc->init_rx_desc(p, priv->use_riwt, 0, 0);
                else
                        priv->hw->desc->set_rx_owner(p);
 
-               wmb();
+               dma_wmb();
 
                entry = STMMAC_GET_ENTRY(entry, DMA_RX_SIZE);
        }
@@ -2512,7 +2502,7 @@ static int stmmac_rx(struct stmmac_priv
        if (netif_msg_rx_status(priv)) {
                void *rx_head;
 
-               pr_info(">>>>>> %s: descriptor ring:\n", __func__);
+               netdev_dbg(priv->dev, "%s: descriptor ring:\n", __func__);
                if (priv->extend_desc)
                        rx_head = (void *)priv->dma_erx;
                else
@@ -2574,9 +2564,9 @@ static int stmmac_rx(struct stmmac_priv
                        unsigned int des;
 
                        if (unlikely(priv->synopsys_id >= DWMAC_CORE_4_00))
-                               des = p->des0;
+                               des = le32_to_cpu(p->des0);
                        else
-                               des = p->des2;
+                               des = le32_to_cpu(p->des2);
 
                        frame_len = priv->hw->desc->get_rx_frame_len(p, coe);
 
@@ -2585,9 +2575,9 @@ static int stmmac_rx(struct stmmac_priv
                         *  ignored
                         */
                        if (frame_len > priv->dma_buf_sz) {
-                               pr_err("%s: len %d larger than size (%d)\n",
-                                      priv->dev->name, frame_len,
-                                      priv->dma_buf_sz);
+                               netdev_err(priv->dev,
+                                          "len %d larger than size (%d)\n",
+                                          frame_len, priv->dma_buf_sz);
                                priv->dev->stats.rx_length_errors++;
                                break;
                        }
@@ -2599,11 +2589,11 @@ static int stmmac_rx(struct stmmac_priv
                                frame_len -= ETH_FCS_LEN;
 
                        if (netif_msg_rx_status(priv)) {
-                               pr_info("\tdesc: %p [entry %d] buff=0x%x\n",
-                                       p, entry, des);
+                               netdev_dbg(priv->dev, "\tdesc: %p [entry %d] buff=0x%x\n",
+                                          p, entry, des);
                                if (frame_len > ETH_FRAME_LEN)
-                                       pr_debug("\tframe size %d, COE: %d\n",
-                                                frame_len, status);
+                                       netdev_dbg(priv->dev, "frame size %d, COE: %d\n",
+                                                  frame_len, status);
                        }
 
                        /* The zero-copy is always used for all the sizes
@@ -2640,8 +2630,9 @@ static int stmmac_rx(struct stmmac_priv
                        } else {
                                skb = priv->rx_skbuff[entry];
                                if (unlikely(!skb)) {
-                                       pr_err("%s: Inconsistent Rx chain\n",
-                                              priv->dev->name);
+                                       netdev_err(priv->dev,
+                                                  "%s: Inconsistent Rx chain\n",
+                                                  priv->dev->name);
                                        priv->dev->stats.rx_dropped++;
                                        break;
                                }
@@ -2657,7 +2648,8 @@ static int stmmac_rx(struct stmmac_priv
                        }
 
                        if (netif_msg_pktdata(priv)) {
-                               pr_debug("frame received (%dbytes)", frame_len);
+                               netdev_dbg(priv->dev, "frame received (%dbytes)",
+                                          frame_len);
                                print_pkt(skb->data, frame_len);
                        }
 
@@ -2760,7 +2752,7 @@ static int stmmac_change_mtu(struct net_
        int max_mtu;
 
        if (netif_running(dev)) {
-               pr_err("%s: must be stopped to change its MTU\n", dev->name);
+               netdev_err(priv->dev, "must be stopped to change its MTU\n");
                return -EBUSY;
        }
 
@@ -2852,7 +2844,7 @@ static irqreturn_t stmmac_interrupt(int
                pm_wakeup_event(priv->device, 0);
 
        if (unlikely(!dev)) {
-               pr_err("%s: invalid dev pointer\n", __func__);
+               netdev_err(priv->dev, "%s: invalid dev pointer\n", __func__);
                return IRQ_NONE;
        }
 
@@ -2910,7 +2902,6 @@ static void stmmac_poll_controller(struc
  */
 static int stmmac_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 {
-       struct stmmac_priv *priv = netdev_priv(dev);
        int ret = -EOPNOTSUPP;
 
        if (!netif_running(dev))
@@ -2920,9 +2911,9 @@ static int stmmac_ioctl(struct net_devic
        case SIOCGMIIPHY:
        case SIOCGMIIREG:
        case SIOCSMIIREG:
-               if (!priv->phydev)
+               if (!dev->phydev)
                        return -EINVAL;
-               ret = phy_mii_ioctl(priv->phydev, rq, cmd);
+               ret = phy_mii_ioctl(dev->phydev, rq, cmd);
                break;
        case SIOCSHWTSTAMP:
                ret = stmmac_hwtstamp_ioctl(dev, rq);
@@ -2950,14 +2941,17 @@ static void sysfs_display_ring(void *hea
                        x = *(u64 *) ep;
                        seq_printf(seq, "%d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n",
                                   i, (unsigned int)virt_to_phys(ep),
-                                  ep->basic.des0, ep->basic.des1,
-                                  ep->basic.des2, ep->basic.des3);
+                                  le32_to_cpu(ep->basic.des0),
+                                  le32_to_cpu(ep->basic.des1),
+                                  le32_to_cpu(ep->basic.des2),
+                                  le32_to_cpu(ep->basic.des3));
                        ep++;
                } else {
                        x = *(u64 *) p;
                        seq_printf(seq, "%d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n",
                                   i, (unsigned int)virt_to_phys(ep),
-                                  p->des0, p->des1, p->des2, p->des3);
+                                  le32_to_cpu(p->des0), le32_to_cpu(p->des1),
+                                  le32_to_cpu(p->des2), le32_to_cpu(p->des3));
                        p++;
                }
                seq_printf(seq, "\n");
@@ -2989,6 +2983,8 @@ static int stmmac_sysfs_ring_open(struct
        return single_open(file, stmmac_sysfs_ring_read, inode->i_private);
 }
 
+/* Debugfs files, should appear in /sys/kernel/debug/stmmaceth/eth0 */
+
 static const struct file_operations stmmac_rings_status_fops = {
        .owner = THIS_MODULE,
        .open = stmmac_sysfs_ring_open,
@@ -3011,11 +3007,11 @@ static int stmmac_sysfs_dma_cap_read(str
        seq_printf(seq, "\tDMA HW features\n");
        seq_printf(seq, "==============================\n");
 
-       seq_printf(seq, "\t10/100 Mbps %s\n",
+       seq_printf(seq, "\t10/100 Mbps: %s\n",
                   (priv->dma_cap.mbps_10_100) ? "Y" : "N");
-       seq_printf(seq, "\t1000 Mbps %s\n",
+       seq_printf(seq, "\t1000 Mbps: %s\n",
                   (priv->dma_cap.mbps_1000) ? "Y" : "N");
-       seq_printf(seq, "\tHalf duple %s\n",
+       seq_printf(seq, "\tHalf duplex: %s\n",
                   (priv->dma_cap.half_duplex) ? "Y" : "N");
        seq_printf(seq, "\tHash Filter: %s\n",
                   (priv->dma_cap.hash_filter) ? "Y" : "N");
@@ -3033,9 +3029,9 @@ static int stmmac_sysfs_dma_cap_read(str
                   (priv->dma_cap.rmon) ? "Y" : "N");
        seq_printf(seq, "\tIEEE 1588-2002 Time Stamp: %s\n",
                   (priv->dma_cap.time_stamp) ? "Y" : "N");
-       seq_printf(seq, "\tIEEE 1588-2008 Advanced Time Stamp:%s\n",
+       seq_printf(seq, "\tIEEE 1588-2008 Advanced Time Stamp: %s\n",
                   (priv->dma_cap.atime_stamp) ? "Y" : "N");
-       seq_printf(seq, "\t802.3az - Energy-Efficient Ethernet (EEE) %s\n",
+       seq_printf(seq, "\t802.3az - Energy-Efficient Ethernet (EEE): %s\n",
                   (priv->dma_cap.eee) ? "Y" : "N");
        seq_printf(seq, "\tAV features: %s\n", (priv->dma_cap.av) ? "Y" : "N");
        seq_printf(seq, "\tChecksum Offload in TX: %s\n",
@@ -3082,8 +3078,7 @@ static int stmmac_init_fs(struct net_dev
        priv->dbgfs_dir = debugfs_create_dir(dev->name, stmmac_fs_dir);
 
        if (!priv->dbgfs_dir || IS_ERR(priv->dbgfs_dir)) {
-               pr_err("ERROR %s/%s, debugfs create directory failed\n",
-                      STMMAC_RESOURCE_NAME, dev->name);
+               netdev_err(priv->dev, "ERROR failed to create debugfs directory\n");
 
                return -ENOMEM;
        }
@@ -3095,7 +3090,7 @@ static int stmmac_init_fs(struct net_dev
                                    &stmmac_rings_status_fops);
 
        if (!priv->dbgfs_rings_status || IS_ERR(priv->dbgfs_rings_status)) {
-               pr_info("ERROR creating stmmac ring debugfs file\n");
+               netdev_err(priv->dev, "ERROR creating stmmac ring debugfs file\n");
                debugfs_remove_recursive(priv->dbgfs_dir);
 
                return -ENOMEM;
@@ -3107,7 +3102,7 @@ static int stmmac_init_fs(struct net_dev
                                            dev, &stmmac_dma_cap_fops);
 
        if (!priv->dbgfs_dma_cap || IS_ERR(priv->dbgfs_dma_cap)) {
-               pr_info("ERROR creating stmmac MMC debugfs file\n");
+               netdev_err(priv->dev, "ERROR creating stmmac MMC debugfs file\n");
                debugfs_remove_recursive(priv->dbgfs_dir);
 
                return -ENOMEM;
@@ -3179,11 +3174,11 @@ static int stmmac_hw_init(struct stmmac_
        } else {
                if (chain_mode) {
                        priv->hw->mode = &chain_mode_ops;
-                       pr_info(" Chain mode enabled\n");
+                       dev_info(priv->device, "Chain mode enabled\n");
                        priv->mode = STMMAC_CHAIN_MODE;
                } else {
                        priv->hw->mode = &ring_mode_ops;
-                       pr_info(" Ring mode enabled\n");
+                       dev_info(priv->device, "Ring mode enabled\n");
                        priv->mode = STMMAC_RING_MODE;
                }
        }
@@ -3191,7 +3186,7 @@ static int stmmac_hw_init(struct stmmac_
        /* Get the HW capability (new GMAC newer than 3.50a) */
        priv->hw_cap_support = stmmac_get_hw_features(priv);
        if (priv->hw_cap_support) {
-               pr_info(" DMA HW capability register supported");
+               dev_info(priv->device, "DMA HW capability register supported\n");
 
                /* We can override some gmac/dma configuration fields: e.g.
                 * enh_desc, tx_coe (e.g. that are passed through the
@@ -3216,8 +3211,9 @@ static int stmmac_hw_init(struct stmmac_
                else if (priv->dma_cap.rx_coe_type1)
                        priv->plat->rx_coe = STMMAC_RX_COE_TYPE1;
 
-       } else
-               pr_info(" No HW DMA feature register supported");
+       } else {
+               dev_info(priv->device, "No HW DMA feature register supported\n");
+       }
 
        /* To use alternate (extended), normal or GMAC4 descriptor structures */
        if (priv->synopsys_id >= DWMAC_CORE_4_00)
@@ -3227,20 +3223,20 @@ static int stmmac_hw_init(struct stmmac_
 
        if (priv->plat->rx_coe) {
                priv->hw->rx_csum = priv->plat->rx_coe;
-               pr_info(" RX Checksum Offload Engine supported\n");
+               dev_info(priv->device, "RX Checksum Offload Engine supported\n");
                if (priv->synopsys_id < DWMAC_CORE_4_00)
-                       pr_info("\tCOE Type %d\n", priv->hw->rx_csum);
+                       dev_info(priv->device, "COE Type %d\n", priv->hw->rx_csum);
        }
        if (priv->plat->tx_coe)
-               pr_info(" TX Checksum insertion supported\n");
+               dev_info(priv->device, "TX Checksum insertion supported\n");
 
        if (priv->plat->pmt) {
-               pr_info(" Wake-Up On Lan supported\n");
+               dev_info(priv->device, "Wake-Up On Lan supported\n");
                device_set_wakeup_capable(priv->device, 1);
        }
 
        if (priv->dma_cap.tsoen)
-               pr_info(" TSO supported\n");
+               dev_info(priv->device, "TSO supported\n");
 
        return 0;
 }
@@ -3299,8 +3295,8 @@ int stmmac_dvr_probe(struct device *devi
 
        priv->stmmac_clk = devm_clk_get(priv->device, STMMAC_RESOURCE_NAME);
        if (IS_ERR(priv->stmmac_clk)) {
-               dev_warn(priv->device, "%s: warning: cannot get CSR clock\n",
-                        __func__);
+               netdev_warn(priv->dev, "%s: warning: cannot get CSR clock\n",
+                           __func__);
                /* If failed to obtain stmmac_clk and specific clk_csr value
                 * is NOT passed from the platform, probe fail.
                 */
@@ -3349,7 +3345,7 @@ int stmmac_dvr_probe(struct device *devi
        if ((priv->plat->tso_en) && (priv->dma_cap.tsoen)) {
                ndev->hw_features |= NETIF_F_TSO;
                priv->tso = true;
-               pr_info(" TSO feature enabled\n");
+               dev_info(priv->device, "TSO feature enabled\n");
        }
        ndev->features |= ndev->hw_features | NETIF_F_HIGHDMA;
        ndev->watchdog_timeo = msecs_to_jiffies(watchdog);
@@ -3369,13 +3365,13 @@ int stmmac_dvr_probe(struct device *devi
         */
        if ((priv->synopsys_id >= DWMAC_CORE_3_50) && (!priv->plat->riwt_off)) {
                priv->use_riwt = 1;
-               pr_info(" Enable RX Mitigation via HW Watchdog Timer\n");
+               dev_info(priv->device,
+                        "Enable RX Mitigation via HW Watchdog Timer\n");
        }
 
        netif_napi_add(ndev, &priv->napi, stmmac_poll, 64);
 
        spin_lock_init(&priv->lock);
-       spin_lock_init(&priv->tx_lock);
 
        /* If a specific clk_csr value is passed from the platform
         * this means that the CSR Clock Range selection cannot be
@@ -3396,15 +3392,17 @@ int stmmac_dvr_probe(struct device *devi
                /* MDIO bus Registration */
                ret = stmmac_mdio_register(ndev);
                if (ret < 0) {
-                       pr_debug("%s: MDIO bus (id: %d) registration failed",
-                                __func__, priv->plat->bus_id);
-                       goto error_napi_register;
+                       dev_err(priv->device,
+                               "%s: MDIO bus (id: %d) registration failed",
+                               __func__, priv->plat->bus_id);
+                       goto error_mdio_register;
                }
        }
 
        ret = register_netdev(ndev);
        if (ret) {
-               pr_err("%s: ERROR %i registering the device\n", __func__, ret);
+               dev_err(priv->device, "%s: ERROR %i registering the device\n",
+                       __func__, ret);
                goto error_netdev_register;
        }
 
@@ -3415,7 +3413,7 @@ error_netdev_register:
            priv->hw->pcs != STMMAC_PCS_TBI &&
            priv->hw->pcs != STMMAC_PCS_RTBI)
                stmmac_mdio_unregister(ndev);
-error_napi_register:
+error_mdio_register:
        netif_napi_del(&priv->napi);
 error_hw_init:
        clk_disable_unprepare(priv->pclk);
@@ -3439,7 +3437,7 @@ int stmmac_dvr_remove(struct device *dev
        struct net_device *ndev = dev_get_drvdata(dev);
        struct stmmac_priv *priv = netdev_priv(ndev);
 
-       pr_info("%s:\n\tremoving driver", __func__);
+       netdev_info(priv->dev, "%s: removing driver", __func__);
 
        priv->hw->dma->stop_rx(priv->ioaddr);
        priv->hw->dma->stop_tx(priv->ioaddr);
@@ -3477,8 +3475,8 @@ int stmmac_suspend(struct device *dev)
        if (!ndev || !netif_running(ndev))
                return 0;
 
-       if (priv->phydev)
-               phy_stop(priv->phydev);
+       if (ndev->phydev)
+               phy_stop(ndev->phydev);
 
        spin_lock_irqsave(&priv->lock, flags);
 
@@ -3572,8 +3570,8 @@ int stmmac_resume(struct device *dev)
 
        spin_unlock_irqrestore(&priv->lock, flags);
 
-       if (priv->phydev)
-               phy_start(priv->phydev);
+       if (ndev->phydev)
+               phy_start(ndev->phydev);
 
        return 0;
 }
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -42,13 +42,6 @@
 #define MII_GMAC4_WRITE                        (1 << MII_GMAC4_GOC_SHIFT)
 #define MII_GMAC4_READ                 (3 << MII_GMAC4_GOC_SHIFT)
 
-#define MII_PHY_ADDR_GMAC4_SHIFT       21
-#define MII_PHY_ADDR_GMAC4_MASK                GENMASK(25, 21)
-#define MII_PHY_REG_GMAC4_SHIFT                16
-#define MII_PHY_REG_GMAC4_MASK         GENMASK(20, 16)
-#define MII_CSR_CLK_GMAC4_SHIFT                8
-#define MII_CSR_CLK_GMAC4_MASK         GENMASK(11, 8)
-
 static int stmmac_mdio_busy_wait(void __iomem *ioaddr, unsigned int mii_addr)
 {
        unsigned long curr;
@@ -68,8 +61,8 @@ static int stmmac_mdio_busy_wait(void __
 /**
  * stmmac_mdio_read
  * @bus: points to the mii_bus structure
- * @phyaddr: MII addr reg bits 15-11
- * @phyreg: MII addr reg bits 10-6
+ * @phyaddr: MII addr
+ * @phyreg: MII reg
  * Description: it reads data from the MII register from within the phy device.
  * For the 7111 GMAC, we must set the bit 0 in the MII address register while
  * accessing the PHY registers.
@@ -83,14 +76,20 @@ static int stmmac_mdio_read(struct mii_b
        unsigned int mii_data = priv->hw->mii.data;
 
        int data;
-       u16 regValue = (((phyaddr << 11) & (0x0000F800)) |
-                       ((phyreg << 6) & (0x000007C0)));
-       regValue |= MII_BUSY | ((priv->clk_csr & 0xF) << 2);
+       u32 value = MII_BUSY;
+
+       value |= (phyaddr << priv->hw->mii.addr_shift)
+               & priv->hw->mii.addr_mask;
+       value |= (phyreg << priv->hw->mii.reg_shift) & priv->hw->mii.reg_mask;
+       value |= (priv->clk_csr << priv->hw->mii.clk_csr_shift)
+               & priv->hw->mii.clk_csr_mask;
+       if (priv->plat->has_gmac4)
+               value |= MII_GMAC4_READ;
 
        if (stmmac_mdio_busy_wait(priv->ioaddr, mii_address))
                return -EBUSY;
 
-       writel(regValue, priv->ioaddr + mii_address);
+       writel(value, priv->ioaddr + mii_address);
 
        if (stmmac_mdio_busy_wait(priv->ioaddr, mii_address))
                return -EBUSY;
@@ -104,8 +103,8 @@ static int stmmac_mdio_read(struct mii_b
 /**
  * stmmac_mdio_write
  * @bus: points to the mii_bus structure
- * @phyaddr: MII addr reg bits 15-11
- * @phyreg: MII addr reg bits 10-6
+ * @phyaddr: MII addr
+ * @phyreg: MII reg
  * @phydata: phy data
  * Description: it writes the data into the MII register from within the device.
  */
@@ -117,85 +116,18 @@ static int stmmac_mdio_write(struct mii_
        unsigned int mii_address = priv->hw->mii.addr;
        unsigned int mii_data = priv->hw->mii.data;
 
-       u16 value =
-           (((phyaddr << 11) & (0x0000F800)) | ((phyreg << 6) & (0x000007C0)))
-           | MII_WRITE;
-
-       value |= MII_BUSY | ((priv->clk_csr & 0xF) << 2);
-
-       /* Wait until any existing MII operation is complete */
-       if (stmmac_mdio_busy_wait(priv->ioaddr, mii_address))
-               return -EBUSY;
-
-       /* Set the MII address register to write */
-       writel(phydata, priv->ioaddr + mii_data);
-       writel(value, priv->ioaddr + mii_address);
-
-       /* Wait until any existing MII operation is complete */
-       return stmmac_mdio_busy_wait(priv->ioaddr, mii_address);
-}
-
-/**
- * stmmac_mdio_read_gmac4
- * @bus: points to the mii_bus structure
- * @phyaddr: MII addr reg bits 25-21
- * @phyreg: MII addr reg bits 20-16
- * Description: it reads data from the MII register of GMAC4 from within
- * the phy device.
- */
-static int stmmac_mdio_read_gmac4(struct mii_bus *bus, int phyaddr, int phyreg)
-{
-       struct net_device *ndev = bus->priv;
-       struct stmmac_priv *priv = netdev_priv(ndev);
-       unsigned int mii_address = priv->hw->mii.addr;
-       unsigned int mii_data = priv->hw->mii.data;
-       int data;
-       u32 value = (((phyaddr << MII_PHY_ADDR_GMAC4_SHIFT) &
-                    (MII_PHY_ADDR_GMAC4_MASK)) |
-                    ((phyreg << MII_PHY_REG_GMAC4_SHIFT) &
-                    (MII_PHY_REG_GMAC4_MASK))) | MII_GMAC4_READ;
-
-       value |= MII_BUSY | ((priv->clk_csr & MII_CSR_CLK_GMAC4_MASK)
-                << MII_CSR_CLK_GMAC4_SHIFT);
-
-       if (stmmac_mdio_busy_wait(priv->ioaddr, mii_address))
-               return -EBUSY;
-
-       writel(value, priv->ioaddr + mii_address);
-
-       if (stmmac_mdio_busy_wait(priv->ioaddr, mii_address))
-               return -EBUSY;
-
-       /* Read the data from the MII data register */
-       data = (int)readl(priv->ioaddr + mii_data);
-
-       return data;
-}
-
-/**
- * stmmac_mdio_write_gmac4
- * @bus: points to the mii_bus structure
- * @phyaddr: MII addr reg bits 25-21
- * @phyreg: MII addr reg bits 20-16
- * @phydata: phy data
- * Description: it writes the data into the MII register of GMAC4 from within
- * the device.
- */
-static int stmmac_mdio_write_gmac4(struct mii_bus *bus, int phyaddr, int phyreg,
-                                  u16 phydata)
-{
-       struct net_device *ndev = bus->priv;
-       struct stmmac_priv *priv = netdev_priv(ndev);
-       unsigned int mii_address = priv->hw->mii.addr;
-       unsigned int mii_data = priv->hw->mii.data;
-
-       u32 value = (((phyaddr << MII_PHY_ADDR_GMAC4_SHIFT) &
-                    (MII_PHY_ADDR_GMAC4_MASK)) |
-                    ((phyreg << MII_PHY_REG_GMAC4_SHIFT) &
-                    (MII_PHY_REG_GMAC4_MASK))) | MII_GMAC4_WRITE;
+       u32 value = MII_BUSY;
 
-       value |= MII_BUSY | ((priv->clk_csr & MII_CSR_CLK_GMAC4_MASK)
-                << MII_CSR_CLK_GMAC4_SHIFT);
+       value |= (phyaddr << priv->hw->mii.addr_shift)
+               & priv->hw->mii.addr_mask;
+       value |= (phyreg << priv->hw->mii.reg_shift) & priv->hw->mii.reg_mask;
+
+       value |= (priv->clk_csr << priv->hw->mii.clk_csr_shift)
+               & priv->hw->mii.clk_csr_mask;
+       if (priv->plat->has_gmac4)
+               value |= MII_GMAC4_WRITE;
+       else
+               value |= MII_WRITE;
 
        /* Wait until any existing MII operation is complete */
        if (stmmac_mdio_busy_wait(priv->ioaddr, mii_address))
@@ -260,7 +192,7 @@ int stmmac_mdio_reset(struct mii_bus *bu
 #endif
 
        if (data->phy_reset) {
-               pr_debug("stmmac_mdio_reset: calling phy_reset\n");
+               netdev_dbg(ndev, "stmmac_mdio_reset: calling phy_reset\n");
                data->phy_reset(priv->plat->bsp_priv);
        }
 
@@ -305,13 +237,8 @@ int stmmac_mdio_register(struct net_devi
 #endif
 
        new_bus->name = "stmmac";
-       if (priv->plat->has_gmac4) {
-               new_bus->read = &stmmac_mdio_read_gmac4;
-               new_bus->write = &stmmac_mdio_write_gmac4;
-       } else {
-               new_bus->read = &stmmac_mdio_read;
-               new_bus->write = &stmmac_mdio_write;
-       }
+       new_bus->read = &stmmac_mdio_read;
+       new_bus->write = &stmmac_mdio_write;
 
        new_bus->reset = &stmmac_mdio_reset;
        snprintf(new_bus->id, MII_BUS_ID_SIZE, "%s-%x",
@@ -325,7 +252,7 @@ int stmmac_mdio_register(struct net_devi
        else
                err = mdiobus_register(new_bus);
        if (err != 0) {
-               pr_err("%s: Cannot register as MDIO bus\n", new_bus->name);
+               netdev_err(ndev, "Cannot register the MDIO bus\n");
                goto bus_register_fail;
        }
 
@@ -372,16 +299,16 @@ int stmmac_mdio_register(struct net_devi
                                irq_str = irq_num;
                                break;
                        }
-                       pr_info("%s: PHY ID %08x at %d IRQ %s (%s)%s\n",
-                               ndev->name, phydev->phy_id, addr,
-                               irq_str, phydev_name(phydev),
-                               act ? " active" : "");
+                       netdev_info(ndev, "PHY ID %08x at %d IRQ %s (%s)%s\n",
+                                   phydev->phy_id, addr,
+                                   irq_str, phydev_name(phydev),
+                                   act ? " active" : "");
                        found = 1;
                }
        }
 
        if (!found && !mdio_node) {
-               pr_warn("%s: No PHY found\n", ndev->name);
+               netdev_warn(ndev, "No PHY found\n");
                mdiobus_unregister(new_bus);
                mdiobus_free(new_bus);
                return -ENODEV;
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
@@ -81,6 +81,7 @@ static void stmmac_default_data(struct p
        plat->mdio_bus_data->phy_mask = 0;
 
        plat->dma_cfg->pbl = 32;
+       plat->dma_cfg->pblx8 = true;
        /* TODO: AXI */
 
        /* Set default value for multicast hash bins */
@@ -88,6 +89,9 @@ static void stmmac_default_data(struct p
 
        /* Set default value for unicast filter entries */
        plat->unicast_filter_entries = 1;
+
+       /* Set the maxmtu to a default of JUMBO_LEN */
+       plat->maxmtu = JUMBO_LEN;
 }
 
 static int quark_default_data(struct plat_stmmacenet_data *plat,
@@ -115,6 +119,7 @@ static int quark_default_data(struct pla
        plat->mdio_bus_data->phy_mask = 0;
 
        plat->dma_cfg->pbl = 16;
+       plat->dma_cfg->pblx8 = true;
        plat->dma_cfg->fixed_burst = 1;
        /* AXI (TODO) */
 
@@ -124,6 +129,9 @@ static int quark_default_data(struct pla
        /* Set default value for unicast filter entries */
        plat->unicast_filter_entries = 1;
 
+       /* Set the maxmtu to a default of JUMBO_LEN */
+       plat->maxmtu = JUMBO_LEN;
+
        return 0;
 }
 
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -292,6 +292,7 @@ stmmac_probe_config_dt(struct platform_d
        if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
            of_device_is_compatible(np, "snps,dwmac-4.10a")) {
                plat->has_gmac4 = 1;
+               plat->has_gmac = 0;
                plat->pmt = 1;
                plat->tso_en = of_property_read_bool(np, "snps,tso");
        }
@@ -303,21 +304,25 @@ stmmac_probe_config_dt(struct platform_d
                plat->force_sf_dma_mode = 1;
        }
 
-       if (of_find_property(np, "snps,pbl", NULL)) {
-               dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*dma_cfg),
-                                      GFP_KERNEL);
-               if (!dma_cfg) {
-                       stmmac_remove_config_dt(pdev, plat);
-                       return ERR_PTR(-ENOMEM);
-               }
-               plat->dma_cfg = dma_cfg;
-               of_property_read_u32(np, "snps,pbl", &dma_cfg->pbl);
-               dma_cfg->aal = of_property_read_bool(np, "snps,aal");
-               dma_cfg->fixed_burst =
-                       of_property_read_bool(np, "snps,fixed-burst");
-               dma_cfg->mixed_burst =
-                       of_property_read_bool(np, "snps,mixed-burst");
-       }
+       dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*dma_cfg),
+                              GFP_KERNEL);
+       if (!dma_cfg) {
+               stmmac_remove_config_dt(pdev, plat);
+               return ERR_PTR(-ENOMEM);
+       }
+       plat->dma_cfg = dma_cfg;
+
+       of_property_read_u32(np, "snps,pbl", &dma_cfg->pbl);
+       if (!dma_cfg->pbl)
+               dma_cfg->pbl = DEFAULT_DMA_PBL;
+       of_property_read_u32(np, "snps,txpbl", &dma_cfg->txpbl);
+       of_property_read_u32(np, "snps,rxpbl", &dma_cfg->rxpbl);
+       dma_cfg->pblx8 = !of_property_read_bool(np, "snps,no-pbl-x8");
+
+       dma_cfg->aal = of_property_read_bool(np, "snps,aal");
+       dma_cfg->fixed_burst = of_property_read_bool(np, "snps,fixed-burst");
+       dma_cfg->mixed_burst = of_property_read_bool(np, "snps,mixed-burst");
+
        plat->force_thresh_dma_mode = of_property_read_bool(np, "snps,force_thresh_dma_mode");
        if (plat->force_thresh_dma_mode) {
                plat->force_sf_dma_mode = 0;
@@ -445,9 +450,7 @@ static int stmmac_pltfr_suspend(struct d
        struct platform_device *pdev = to_platform_device(dev);
 
        ret = stmmac_suspend(dev);
-       if (priv->plat->suspend)
-               priv->plat->suspend(pdev, priv->plat->bsp_priv);
-       else if (priv->plat->exit)
+       if (priv->plat->exit)
                priv->plat->exit(pdev, priv->plat->bsp_priv);
 
        return ret;
@@ -466,9 +469,7 @@ static int stmmac_pltfr_resume(struct de
        struct stmmac_priv *priv = netdev_priv(ndev);
        struct platform_device *pdev = to_platform_device(dev);
 
-       if (priv->plat->resume)
-               priv->plat->resume(pdev, priv->plat->bsp_priv);
-       else if (priv->plat->init)
+       if (priv->plat->init)
                priv->plat->init(pdev, priv->plat->bsp_priv);
 
        return stmmac_resume(dev);
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -88,6 +88,9 @@ struct stmmac_mdio_bus_data {
 
 struct stmmac_dma_cfg {
        int pbl;
+       int txpbl;
+       int rxpbl;
+       bool pblx8;
        int fixed_burst;
        int mixed_burst;
        bool aal;
@@ -135,8 +138,6 @@ struct plat_stmmacenet_data {
        void (*bus_setup)(void __iomem *ioaddr);
        int (*init)(struct platform_device *pdev, void *priv);
        void (*exit)(struct platform_device *pdev, void *priv);
-       void (*suspend)(struct platform_device *pdev, void *priv);
-       void (*resume)(struct platform_device *pdev, void *priv);
        void *bsp_priv;
        struct stmmac_axi *axi;
        int has_gmac4;