/branches/gl-inet/target/linux/brcm63xx/patches-4.9/105-MIPS-BCM63XX-add-support-for-the-on-chip-OHCI-contro.patch |
@@ -0,0 +1,138 @@ |
From 30d22baef255c99a12c4858ce4ab0d45f0d8c9ae Mon Sep 17 00:00:00 2001 |
From: Florian Fainelli <florian@openwrt.org> |
Date: Mon, 28 Jan 2013 20:06:24 +0100 |
Subject: [PATCH 06/11] MIPS: BCM63XX: add support for the on-chip OHCI |
controller |
|
Broadcom BCM63XX SoCs include an on-chip OHCI controller which can be |
driven by the ohci-platform generic driver by using specific power |
on/off/suspend callback to manage clocks and hardware specific |
configuration. |
|
Signed-off-by: Maxime Bizon <mbizon@freebox.fr> |
Signed-off-by: Florian Fainelli <florian@openwrt.org> |
--- |
arch/mips/bcm63xx/Makefile | 2 +- |
arch/mips/bcm63xx/dev-usb-ohci.c | 94 ++++++++++++++++++++ |
.../asm/mach-bcm63xx/bcm63xx_dev_usb_ohci.h | 6 ++ |
3 files changed, 101 insertions(+), 1 deletion(-) |
create mode 100644 arch/mips/bcm63xx/dev-usb-ohci.c |
create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ohci.h |
|
--- a/arch/mips/bcm63xx/Makefile |
+++ b/arch/mips/bcm63xx/Makefile |
@@ -1,7 +1,7 @@ |
obj-y += clk.o cpu.o cs.o gpio.o irq.o nvram.o prom.o reset.o \ |
setup.o timer.o dev-dsp.o dev-enet.o dev-flash.o \ |
dev-pcmcia.o dev-rng.o dev-spi.o dev-hsspi.o dev-uart.o \ |
- dev-wdt.o dev-usb-usbd.o usb-common.o |
+ dev-wdt.o dev-usb-ohci.o dev-usb-usbd.o usb-common.o |
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o |
|
obj-y += boards/ |
--- /dev/null |
+++ b/arch/mips/bcm63xx/dev-usb-ohci.c |
@@ -0,0 +1,94 @@ |
+/* |
+ * This file is subject to the terms and conditions of the GNU General Public |
+ * License. See the file "COPYING" in the main directory of this archive |
+ * for more details. |
+ * |
+ * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr> |
+ * Copyright (C) 2013 Florian Fainelli <florian@openwrt.org> |
+ */ |
+ |
+#include <linux/init.h> |
+#include <linux/kernel.h> |
+#include <linux/platform_device.h> |
+#include <linux/usb/ohci_pdriver.h> |
+#include <linux/dma-mapping.h> |
+#include <linux/clk.h> |
+#include <linux/delay.h> |
+ |
+#include <bcm63xx_cpu.h> |
+#include <bcm63xx_regs.h> |
+#include <bcm63xx_io.h> |
+#include <bcm63xx_usb_priv.h> |
+#include <bcm63xx_dev_usb_ohci.h> |
+ |
+static struct resource ohci_resources[] = { |
+ { |
+ .start = -1, /* filled at runtime */ |
+ .end = -1, /* filled at runtime */ |
+ .flags = IORESOURCE_MEM, |
+ }, |
+ { |
+ .start = -1, /* filled at runtime */ |
+ .flags = IORESOURCE_IRQ, |
+ }, |
+}; |
+ |
+static u64 ohci_dmamask = DMA_BIT_MASK(32); |
+ |
+static struct clk *usb_host_clock; |
+ |
+static int bcm63xx_ohci_power_on(struct platform_device *pdev) |
+{ |
+ usb_host_clock = clk_get(&pdev->dev, "usbh"); |
+ if (IS_ERR_OR_NULL(usb_host_clock)) |
+ return -ENODEV; |
+ |
+ clk_prepare_enable(usb_host_clock); |
+ |
+ bcm63xx_usb_priv_ohci_cfg_set(); |
+ |
+ return 0; |
+} |
+ |
+static void bcm63xx_ohci_power_off(struct platform_device *pdev) |
+{ |
+ if (!IS_ERR_OR_NULL(usb_host_clock)) { |
+ clk_disable_unprepare(usb_host_clock); |
+ clk_put(usb_host_clock); |
+ } |
+} |
+ |
+static struct usb_ohci_pdata bcm63xx_ohci_pdata = { |
+ .big_endian_desc = 1, |
+ .big_endian_mmio = 1, |
+ .no_big_frame_no = 1, |
+ .num_ports = 1, |
+ .power_on = bcm63xx_ohci_power_on, |
+ .power_off = bcm63xx_ohci_power_off, |
+ .power_suspend = bcm63xx_ohci_power_off, |
+}; |
+ |
+static struct platform_device bcm63xx_ohci_device = { |
+ .name = "ohci-platform", |
+ .id = -1, |
+ .num_resources = ARRAY_SIZE(ohci_resources), |
+ .resource = ohci_resources, |
+ .dev = { |
+ .platform_data = &bcm63xx_ohci_pdata, |
+ .dma_mask = &ohci_dmamask, |
+ .coherent_dma_mask = DMA_BIT_MASK(32), |
+ }, |
+}; |
+ |
+int __init bcm63xx_ohci_register(void) |
+{ |
+ if (BCMCPU_IS_6345() || BCMCPU_IS_6338()) |
+ return -ENODEV; |
+ |
+ ohci_resources[0].start = bcm63xx_regset_address(RSET_OHCI0); |
+ ohci_resources[0].end = ohci_resources[0].start; |
+ ohci_resources[0].end += RSET_OHCI_SIZE - 1; |
+ ohci_resources[1].start = bcm63xx_get_irq_number(IRQ_OHCI0); |
+ |
+ return platform_device_register(&bcm63xx_ohci_device); |
+} |
--- /dev/null |
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ohci.h |
@@ -0,0 +1,6 @@ |
+#ifndef BCM63XX_DEV_USB_OHCI_H_ |
+#define BCM63XX_DEV_USB_OHCI_H_ |
+ |
+int bcm63xx_ohci_register(void); |
+ |
+#endif /* BCM63XX_DEV_USB_OHCI_H_ */ |