OpenWrt – Rev 1

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--- a/arch/arm/mach-orion5x/Kconfig
+++ b/arch/arm/mach-orion5x/Kconfig
@@ -48,6 +48,13 @@ config MACH_RD88F5182_DT
          Say 'Y' here if you want your kernel to support the Marvell
          Orion-NAS (88F5182) RD2, Flattened Device Tree.
 
+config MACH_DT2
+       bool "Freecom DataTank Gateway"
+       select I2C_BOARDINFO
+       help
+         Say 'Y' here if you want your kernel to support the
+         Freecom DataTank Gateway
+
 config MACH_KUROBOX_PRO
        bool "KuroBox Pro"
        select I2C_BOARDINFO if I2C
--- a/arch/arm/mach-orion5x/Makefile
+++ b/arch/arm/mach-orion5x/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_MACH_TS78XX)     += ts78xx-setu
 obj-$(CONFIG_MACH_MV2120)      += mv2120-setup.o
 obj-$(CONFIG_MACH_NET2BIG)     += net2big-setup.o
 obj-$(CONFIG_MACH_WNR854T)     += wnr854t-setup.o
+obj-$(CONFIG_MACH_DT2)         += dt2-setup.o
 obj-$(CONFIG_MACH_RD88F5181L_GE)       += rd88f5181l-ge-setup.o
 obj-$(CONFIG_MACH_RD88F5181L_FXO)      += rd88f5181l-fxo-setup.o
 obj-$(CONFIG_MACH_RD88F6183AP_GE)      += rd88f6183ap-ge-setup.o
--- /dev/null
+++ b/arch/arm/mach-orion5x/dt2-common.h
@@ -0,0 +1,82 @@
+#ifndef __INC_DT2_COMMON_H
+#define __INC_DT2_COMMON_H
+
+#define ATAG_MV_UBOOT                  0x41000403
+
+struct tag_mv_uboot {
+       u32 uboot_version;
+       u32 tclk;
+       u32 sysclk;
+       u32 isUsbHost;
+       u32 overEthAddr;
+       u8  dt2_eeprom[256];
+};
+
+#define DT2_EEPROM_ADDR                0x50
+#define DT2_EEPROM_OFFSET              0
+#define DT2_EEPROM_LENGTH              256
+
+#define DT2_SERIAL_NUMBER_DEFAULT      "run on default\0"
+#define DT2_REVISION_DEFAULT_INIT      0xFF
+#define DT2_CONFIG_FLAGS_DEFAULT       0x00
+
+#define _PACKED_       __attribute__((packed))
+
+struct DT2_EEPROM_SD_CONFIG {
+       unsigned int    ram_1;
+       unsigned int    ram_2;
+       unsigned int    ram_3;
+       unsigned int    ram_4;
+       unsigned char   ram_5;
+       unsigned char   ram_6;
+       unsigned short  ram_7;
+       unsigned int    magic_id;
+       } _PACKED_;             // 24 Bytes in total
+
+struct DT2_EEPROM_FC_CONFIG {
+       unsigned char   rtc_sts_mask;
+       unsigned char   rtc_sts_init;
+       unsigned char   rtc_int_mask;
+       unsigned char   rtc_int_init;
+       unsigned char   rtc_atrim_init;
+       unsigned char   rtc_dtrim_init;
+       unsigned char   dummy1;
+       unsigned char   dummy2;
+       unsigned char   dt2_config_flags;       /* 0x80 to load rtc_values to RTC */
+       unsigned char   dt2_revision;           /* upper nibble is HW, lower nibble is FW */
+       unsigned char   dt2_serial_number[16];  /* Serial number of DT-2 */
+       } _PACKED_;             // 26 Bytes in total
+
+#define CFG_LOAD_RTC_VALUES    0x80
+
+struct DT2_EEPROM_GW_CONFIG {
+       unsigned int    dummy1;
+       unsigned int    dummy2;
+       unsigned int    dummy3;
+       unsigned char   dummy4;
+       unsigned char   tos_video_val1;
+       unsigned char   tos_video_val2;
+       unsigned char   tos_voip_val;
+       unsigned char   qos_igmp_cfg;
+       unsigned char   num_of_ifs;
+       unsigned short  vlan_ports_if[3];
+       unsigned char   mac_addr[3][6];
+       } _PACKED_;             // 42 Bytes in total
+
+#define _SIZE_OF_ALL_STRUCTS_ (sizeof(struct DT2_EEPROM_SD_CONFIG) + sizeof(struct DT2_EEPROM_FC_CONFIG) +  sizeof(struct DT2_EEPROM_GW_CONFIG))
+
+// MV = EEPROM - SD - FC - GW - CRC
+struct DT2_EEPROM_MV_CONFIG {
+       unsigned int reg_addr[(DT2_EEPROM_LENGTH - _SIZE_OF_ALL_STRUCTS_ - sizeof(unsigned int)) / (sizeof(unsigned int) * 2)];
+       unsigned int reg_data[(DT2_EEPROM_LENGTH - _SIZE_OF_ALL_STRUCTS_ - sizeof(unsigned int)) / (sizeof(unsigned int) * 2)];
+       } _PACKED_;
+
+struct DT2_EEPROM_STRUCT {
+       struct DT2_EEPROM_MV_CONFIG mv;
+       struct DT2_EEPROM_SD_CONFIG sd;
+       struct DT2_EEPROM_FC_CONFIG fc;
+       struct DT2_EEPROM_GW_CONFIG gw;
+       unsigned int    crc;
+       } _PACKED_;
+
+#endif
--- /dev/null
+++ b/arch/arm/mach-orion5x/dt2-setup.c
@@ -0,0 +1,448 @@
+/*
+ * arch/arm/mach-orion5x/dt2-setup.c
+ *
+ * Freecom DataTank Gateway Setup
+ *
+ * Copyright (C) 2009 Zintis Petersons <Zintis.Petersons@abcsolutions.lv>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/ethtool.h>
+#include <linux/if_ether.h>
+#include <net/dsa.h>
+#include <linux/ata_platform.h>
+#include <linux/i2c.h>
+#include <linux/reboot.h>
+#include <linux/interrupt.h>
+#include <asm/mach-types.h>
+#include <asm/gpio.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include "orion5x.h"
+#include "common.h"
+#include "mpp.h"
+
+/*****************************************************************************
+ * DT2 local
+ ****************************************************************************/
+#include <asm/setup.h>
+#include "dt2-common.h"
+
+u32 mvUbootVer = 0;
+u32 mvTclk = 166666667;
+u32 mvSysclk = 200000000;
+u32 mvIsUsbHost = 1;
+u32 overEthAddr = 0;
+u32 gBoardId = -1;
+struct DT2_EEPROM_STRUCT dt2_eeprom;
+
+/*****************************************************************************
+ * DT2 Info
+ ****************************************************************************/
+/*
+ * PCI
+ */
+
+#define DT2_PCI_SLOT0_OFFS     7
+#define DT2_PCI_SLOT0_IRQ_A_PIN        3
+#define DT2_PCI_SLOT0_IRQ_B_PIN        2
+
+#define DT2_PIN_GPIO_SYNC      25
+#define DT2_PIN_GPIO_POWER     24
+#define DT2_PIN_GPIO_UNPLUG1   23
+#define DT2_PIN_GPIO_UNPLUG2   22
+#define DT2_PIN_GPIO_RESET     4
+
+#define DT2_NOR_BOOT_BASE      0xf4000000
+#define DT2_NOR_BOOT_SIZE      SZ_512K
+
+#define DT2_LEDS_BASE          0xfa000000
+#define DT2_LEDS_SIZE          SZ_1K
+
+/*****************************************************************************
+ * 512K NOR Flash on Device bus Boot CS
+ ****************************************************************************/
+
+static struct mtd_partition dt2_partitions[] = {
+       {
+               .name   = "u-boot",
+               .size   = 0x00080000,
+               .offset = 0,
+       },
+};
+
+static struct physmap_flash_data dt2_nor_flash_data = {
+       .width          = 1,            /* 8 bit bus width */
+       .parts          = dt2_partitions,
+       .nr_parts       = ARRAY_SIZE(dt2_partitions)
+};
+
+static struct resource dt2_nor_flash_resource = {
+       .flags          = IORESOURCE_MEM,
+       .start          = DT2_NOR_BOOT_BASE,
+       .end            = DT2_NOR_BOOT_BASE + DT2_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device dt2_nor_flash = {
+       .name           = "physmap-flash",
+       .id             = 0,
+       .dev            = {
+               .platform_data  = &dt2_nor_flash_data,
+       },
+       .resource       = &dt2_nor_flash_resource,
+       .num_resources  = 1,
+};
+
+/*****************************************************************************
+ * PCI
+ ****************************************************************************/
+
+void __init dt2_pci_preinit(void)
+{
+       int pin, irq;
+
+       /*
+        * Configure PCI GPIO IRQ pins
+        */
+       pin = DT2_PCI_SLOT0_IRQ_A_PIN;
+       if (gpio_request(pin, "PCI IntA") == 0) {
+               if (gpio_direction_input(pin) == 0) {
+                       irq = gpio_to_irq(pin);
+                       irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
+                       printk (KERN_INFO "PCI IntA IRQ: %d\n", irq);
+               } else {
+                       printk(KERN_ERR "dt2_pci_preinit failed to "
+                                       "irq_set_irq_type pin %d\n", pin);
+                       gpio_free(pin);
+               }
+       } else {
+               printk(KERN_ERR "dt2_pci_preinit failed to request gpio %d\n", pin);
+       }
+
+       pin = DT2_PCI_SLOT0_IRQ_B_PIN;
+       if (gpio_request(pin, "PCI IntB") == 0) {
+               if (gpio_direction_input(pin) == 0) {
+                       irq = gpio_to_irq(pin);
+                       irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
+                       printk (KERN_INFO "PCI IntB IRQ: %d\n", irq);
+               } else {
+                       printk(KERN_ERR "dt2_pci_preinit failed to "
+                                       "irq_set_irq_type pin %d\n", pin);
+                       gpio_free(pin);
+               }
+       } else {
+               printk(KERN_ERR "dt2_pci_preinit failed to gpio_request %d\n", pin);
+       }
+}
+
+static int __init dt2_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+       int irq;
+
+       /*
+        * Check for devices with hard-wired IRQs.
+        */
+       irq = orion5x_pci_map_irq(dev, slot, pin);
+       if (irq != -1){
+               printk(KERN_INFO "orion5x_pci_map_irq: %d\n", irq);
+               return irq;
+       }
+
+       /*
+        * PCI IRQs are connected via GPIOs
+        */
+       switch (slot - DT2_PCI_SLOT0_OFFS) {
+       case 0:
+               if (pin == 1){
+                       irq = gpio_to_irq(DT2_PCI_SLOT0_IRQ_A_PIN);
+                       printk(KERN_INFO "dt2_pci_map_irq DT2_PCI_SLOT0_IRQ_A_PIN: %d\n", irq);
+               }
+               else {
+                       irq = gpio_to_irq(DT2_PCI_SLOT0_IRQ_B_PIN);
+                       printk(KERN_INFO "dt2_pci_map_irq DT2_PCI_SLOT0_IRQ_B_PIN: %d\n", irq);
+               }
+       default:
+               irq = -1;
+                       printk(KERN_INFO "dt2_pci_map_irq IRQ: %d\n", irq);
+       }
+
+       return irq;
+}
+
+static struct hw_pci dt2_pci __initdata = {
+       .nr_controllers = 2,
+       .preinit        = dt2_pci_preinit,
+       .setup          = orion5x_pci_sys_setup,
+       .scan           = orion5x_pci_sys_scan_bus,
+       .map_irq        = dt2_pci_map_irq,
+};
+
+static int __init dt2_pci_init(void)
+{
+       if (machine_is_dt2())
+               pci_common_init(&dt2_pci);
+
+       return 0;
+}
+
+subsys_initcall(dt2_pci_init);
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+
+static struct mv643xx_eth_platform_data dt2_eth_data = {
+       .phy_addr       = MV643XX_ETH_PHY_NONE,
+       .speed          = SPEED_1000,
+       .duplex         = DUPLEX_FULL,
+};
+
+static struct dsa_chip_data dt2_switch_chip_data = {
+       .port_names[0] = "wan",
+       .port_names[1] = "lan1",
+       .port_names[2] = "lan2",
+       .port_names[3] = "cpu",
+       .port_names[4] = "lan3",
+       .port_names[5] = "lan4",
+};
+
+static struct dsa_platform_data dt2_switch_plat_data = {
+       .nr_chips       = 1,
+       .chip           = &dt2_switch_chip_data,
+};
+
+/*****************************************************************************
+ * RTC ISL1208 on I2C bus
+ ****************************************************************************/
+static struct i2c_board_info __initdata dt2_i2c_rtc = {
+       I2C_BOARD_INFO("isl1208", 0x6F),
+};
+
+/*****************************************************************************
+ * Sata
+ ****************************************************************************/
+static struct mv_sata_platform_data dt2_sata_data = {
+       .n_ports        = 2,
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+static unsigned int dt2_mpp_modes[] __initdata = {
+       MPP0_GPIO,              // RTC interrupt
+       MPP1_GPIO,              // 88e6131 interrupt
+       MPP2_GPIO,              // PCI_intB
+       MPP3_GPIO,              // PCI_intA
+       MPP4_GPIO,              // reset button switch
+       MPP5_GPIO,
+       MPP6_GPIO,
+       MPP7_GPIO,
+       MPP8_GPIO,
+       MPP9_GIGE,              /* GE_RXERR */
+       MPP10_GPIO,             // usb
+       MPP11_GPIO,             // usb
+       MPP12_GIGE,             // GE_TXD[4]
+       MPP13_GIGE,             // GE_TXD[5]
+       MPP14_GIGE,             // GE_TXD[6]
+       MPP15_GIGE,             // GE_TXD[7]
+       MPP16_GIGE,             // GE_RXD[4]
+       MPP17_GIGE,             // GE_RXD[5]
+       MPP18_GIGE,             // GE_RXD[6]
+       MPP19_GIGE,             // GE_RXD[7]
+       0,
+};
+
+/*****************************************************************************
+ * LEDS
+ ****************************************************************************/
+static struct platform_device dt2_leds = {
+       .name           = "dt2-led",
+       .id             = -1,
+};
+
+/****************************************************************************
+ * GPIO key
+ ****************************************************************************/
+static irqreturn_t dt2_reset_handler(int irq, void *dev_id)
+{
+       /* This is the paper-clip reset which does an emergency reboot. */
+       printk(KERN_INFO "Restarting system.\n");
+       machine_restart(NULL);
+
+       /* This should never be reached. */
+       return IRQ_HANDLED;
+}
+
+static irqreturn_t dt2_power_handler(int irq, void *dev_id)
+{
+       printk(KERN_INFO "Shutting down system.\n");
+       machine_power_off();
+       return IRQ_HANDLED;
+}
+
+static void __init dt2_init(void)
+{
+       /*
+        * Setup basic Orion functions. Need to be called early.
+        */
+       orion5x_init();
+
+       orion5x_mpp_conf(dt2_mpp_modes);
+
+       /*
+        * Configure peripherals.
+        */
+
+       orion5x_uart0_init();
+       orion5x_ehci0_init();
+       orion5x_ehci1_init();
+       orion5x_i2c_init();
+       orion5x_sata_init(&dt2_sata_data);
+       orion5x_xor_init();
+
+       printk(KERN_INFO "U-Boot parameters:\n");
+       printk(KERN_INFO "Sys Clk = %d, Tclk = %d, BoardID = 0x%02x\n", mvSysclk, mvTclk, gBoardId);
+
+       printk(KERN_INFO "Serial: %s\n", dt2_eeprom.fc.dt2_serial_number);
+       printk(KERN_INFO "Revision: %016x\n", dt2_eeprom.fc.dt2_revision);
+       printk(KERN_INFO "DT2: Using MAC address %pM for port 0\n",
+              dt2_eeprom.gw.mac_addr[0]);
+       printk(KERN_INFO "DT2: Using MAC address %pM for port 1\n",
+              dt2_eeprom.gw.mac_addr[1]);
+
+       orion5x_eth_init(&dt2_eth_data);
+       memcpy(dt2_eth_data.mac_addr, dt2_eeprom.gw.mac_addr[0], 6);
+       orion5x_eth_switch_init(&dt2_switch_plat_data);
+
+       i2c_register_board_info(0, &dt2_i2c_rtc, 1);
+
+       mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
+                                   ORION_MBUS_DEVBUS_BOOT_ATTR,
+                                   DT2_NOR_BOOT_BASE, DT2_NOR_BOOT_SIZE);
+
+       platform_device_register(&dt2_nor_flash);
+
+       mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_TARGET(0),
+                                   ORION_MBUS_DEVBUS_ATTR(0),
+                                   DT2_LEDS_BASE, DT2_LEDS_SIZE);
+       platform_device_register(&dt2_leds);
+
+       if (request_irq(gpio_to_irq(DT2_PIN_GPIO_RESET), &dt2_reset_handler,
+                       IRQF_TRIGGER_LOW,
+                       "DT2: Reset button", NULL) < 0) {
+
+               printk("DT2: Reset Button IRQ %d not available\n",
+                       gpio_to_irq(DT2_PIN_GPIO_RESET));
+       }
+
+       if (request_irq(gpio_to_irq(DT2_PIN_GPIO_POWER), &dt2_power_handler,
+                       IRQF_TRIGGER_LOW,
+                       "DT2: Power button", NULL) < 0) {
+
+               printk(KERN_DEBUG "DT2: Power Button IRQ %d not available\n",
+                       gpio_to_irq(DT2_PIN_GPIO_POWER));
+       }
+}
+
+static int __init parse_tag_dt2_uboot(const struct tag *t)
+{
+       struct tag_mv_uboot *mv_uboot;
+
+       // Get pointer to our block
+       mv_uboot = (struct tag_mv_uboot*)&t->u;
+       mvTclk = mv_uboot->tclk;
+       mvSysclk = mv_uboot->sysclk;
+       mvUbootVer = mv_uboot->uboot_version;
+       mvIsUsbHost = mv_uboot->isUsbHost;
+
+       // Some clock fixups
+       if(mvTclk == 166000000) mvTclk = 166666667;
+       else if(mvTclk == 133000000) mvTclk = 133333333;
+       else if(mvSysclk == 166000000) mvSysclk = 166666667;
+
+       gBoardId =  (mvUbootVer & 0xff);
+
+       //DT2 specific data
+       memcpy(&dt2_eeprom, mv_uboot->dt2_eeprom, sizeof(struct DT2_EEPROM_STRUCT));
+
+       return 0;
+}
+__tagtable(ATAG_MV_UBOOT, parse_tag_dt2_uboot);
+
+/*
+ * This is OpenWrt specific fixup. It includes code from original "tag_fixup_mem32" to
+ * fixup bogus memory tags and also fixes kernel cmdline by adding " init=/etc/preinit"
+ * at the end. It is important to flash OpenWrt image from original Freecom firmware.
+ *
+ * Vanilla kernel should use "tag_fixup_mem32" function.
+ */
+static void __init openwrt_fixup(struct tag *t, char **from)
+{
+       char *p = NULL;
+       static char openwrt_init_tag[] __initdata = " init=/etc/preinit";
+
+       for (; t->hdr.size; t = tag_next(t)){
+               /* Locate the Freecom cmdline */
+               if (t->hdr.tag == ATAG_CMDLINE) {
+                       p = t->u.cmdline.cmdline;
+                       printk("%s(%d): Found cmdline '%s' at 0x%0lx\n",
+                              __FUNCTION__, __LINE__, p, (unsigned long)p);
+               }
+               /*
+                * Many orion-based systems have buggy bootloader implementations.
+                * This is a common fixup for bogus memory tags.
+                */
+               if (t->hdr.tag == ATAG_MEM &&
+                   (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK ||
+                    t->u.mem.start & ~PAGE_MASK)) {
+                       printk(KERN_WARNING
+                              "Clearing invalid memory bank %dKB@0x%08x\n",
+                              t->u.mem.size / 1024, t->u.mem.start);
+                       t->hdr.tag = 0;
+               }
+       }
+
+       printk("%s(%d): End of table at 0x%0lx\n", __FUNCTION__, __LINE__, (unsigned long)t);
+
+       /* Overwrite the end of the table with a new cmdline tag. */
+       t->hdr.tag = ATAG_CMDLINE;
+       t->hdr.size =
+               (sizeof (struct tag_header) +
+                strlen(p) + strlen(openwrt_init_tag) + 1 + 4) >> 2;
+
+       strlcpy(t->u.cmdline.cmdline, p, COMMAND_LINE_SIZE);
+       strlcpy(t->u.cmdline.cmdline + strlen(p), openwrt_init_tag,
+               COMMAND_LINE_SIZE - strlen(p));
+
+       printk("%s(%d): New cmdline '%s' at 0x%0lx\n",
+              __FUNCTION__, __LINE__,
+              t->u.cmdline.cmdline, (unsigned long)t->u.cmdline.cmdline);
+
+       t = tag_next(t);
+
+       printk("%s(%d): New end of table at 0x%0lx\n", __FUNCTION__, __LINE__, (unsigned long)t);
+
+       t->hdr.tag = ATAG_NONE;
+       t->hdr.size = 0;
+}
+
+/* Warning: Freecom uses their own custom bootloader with mach-type (=1500) */
+MACHINE_START(DT2, "Freecom DataTank Gateway")
+       /* Maintainer: Zintis Petersons <Zintis.Petersons@abcsolutions.lv> */
+       .atag_offset    = 0x100,
+       .init_machine   = dt2_init,
+       .map_io         = orion5x_map_io,
+       .init_irq       = orion5x_init_irq,
+       .init_time      = orion5x_timer_init,
+       .fixup          = openwrt_fixup, //tag_fixup_mem32,
+MACHINE_END

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