--- /dev/null
+From f7416412febd7efc1d33c7506c81265719368667 Mon Sep 17 00:00:00 2001
+From: Maxime Bizon <mbizon@freebox.fr>
+Date: Mon, 21 Jul 2008 14:58:19 +0200
+Subject: [PATCH] [MIPS] BCM63XX: Add USB OHCI support.
+
+Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
+---
+ arch/mips/bcm63xx/Kconfig | 6 +
+ arch/mips/bcm63xx/Makefile | 1 +
+ arch/mips/bcm63xx/dev-usb-ohci.c | 50 ++++++
+ drivers/usb/host/ohci-bcm63xx.c | 159 ++++++++++++++++++++
+ drivers/usb/host/ohci-hcd.c | 5 +
+ drivers/usb/host/ohci.h | 7 +-
+ .../asm-mips/mach-bcm63xx/bcm63xx_dev_usb_ohci.h | 6 +
+ 7 files changed, 233 insertions(+), 1 deletions(-)
+ create mode 100644 arch/mips/bcm63xx/dev-usb-ohci.c
+ create mode 100644 drivers/usb/host/ohci-bcm63xx.c
+ create mode 100644 include/asm-mips/mach-bcm63xx/bcm63xx_dev_usb_ohci.h
+
+diff --git a/arch/mips/bcm63xx/Kconfig b/arch/mips/bcm63xx/Kconfig
+index 7ca370a..f2ddb87 100644
+--- a/arch/mips/bcm63xx/Kconfig
++++ b/arch/mips/bcm63xx/Kconfig
+@@ -4,8 +4,14 @@ menu "CPU support"
+ config BCM63XX_CPU_6348
+ bool "support 6348 CPU"
+ select HW_HAS_PCI
++ select USB_ARCH_HAS_OHCI
++ select USB_OHCI_BIG_ENDIAN_DESC
++ select USB_OHCI_BIG_ENDIAN_MMIO
+
+ config BCM63XX_CPU_6358
+ bool "support 6358 CPU"
+ select HW_HAS_PCI
++ select USB_ARCH_HAS_OHCI
++ select USB_OHCI_BIG_ENDIAN_DESC
++ select USB_OHCI_BIG_ENDIAN_MMIO
+ endmenu
+diff --git a/arch/mips/bcm63xx/Makefile b/arch/mips/bcm63xx/Makefile
+index 456e915..75f0d54 100644
+--- a/arch/mips/bcm63xx/Makefile
++++ b/arch/mips/bcm63xx/Makefile
+@@ -1,4 +1,5 @@
+ obj-y += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o
+ obj-y += dev-uart.o
+ obj-y += dev-pcmcia.o
++obj-y += dev-usb-ohci.o
+ obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+diff --git a/arch/mips/bcm63xx/dev-usb-ohci.c b/arch/mips/bcm63xx/dev-usb-ohci.c
+new file mode 100644
+index 0000000..377e67c
+--- /dev/null
++++ b/arch/mips/bcm63xx/dev-usb-ohci.c
+@@ -0,0 +1,50 @@
++/*
++ * 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>
++ */
++
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/platform_device.h>
++#include <bcm63xx_cpu.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 = ~(u32)0;
++
++static struct platform_device bcm63xx_ohci_device = {
++ .name = "bcm63xx_ohci",
++ .id = 0,
++ .num_resources = ARRAY_SIZE(ohci_resources),
++ .resource = ohci_resources,
++ .dev = {
++ .dma_mask = &ohci_dmamask,
++ .coherent_dma_mask = 0xffffffff,
++ },
++};
++
++int __init bcm63xx_ohci_register(void)
++{
++ if (!BCMCPU_IS_6348() && !BCMCPU_IS_6358())
++ return 0;
++
++ 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);
++}
+diff --git a/drivers/usb/host/ohci-bcm63xx.c b/drivers/usb/host/ohci-bcm63xx.c
+new file mode 100644
+index 0000000..08807d9
+--- /dev/null
++++ b/drivers/usb/host/ohci-bcm63xx.c
+@@ -0,0 +1,159 @@
++/*
++ * 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>
++ */
++
++#include <linux/init.h>
++#include <linux/clk.h>
++#include <linux/platform_device.h>
++#include <bcm63xx_cpu.h>
++#include <bcm63xx_regs.h>
++#include <bcm63xx_io.h>
++
++static struct clk *usb_host_clock;
++
++static int __devinit ohci_bcm63xx_start(struct usb_hcd *hcd)
++{
++ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
++ int ret;
++
++ ret = ohci_init(ohci);
++ if (ret < 0)
++ return ret;
++
++ /* FIXME: autodetected port 2 is shared with USB slave */
++
++ ret = ohci_run(ohci);
++ if (ret < 0) {
++ err("can't start %s", hcd->self.bus_name);
++ ohci_stop(hcd);
++ return ret;
++ }
++ return 0;
++}
++
++static const struct hc_driver ohci_bcm63xx_hc_driver = {
++ .description = hcd_name,
++ .product_desc = "BCM63XX integrated OHCI controller",
++ .hcd_priv_size = sizeof(struct ohci_hcd),
++
++ .irq = ohci_irq,
++ .flags = HCD_USB11 | HCD_MEMORY,
++ .start = ohci_bcm63xx_start,
++ .stop = ohci_stop,
++ .shutdown = ohci_shutdown,
++ .urb_enqueue = ohci_urb_enqueue,
++ .urb_dequeue = ohci_urb_dequeue,
++ .endpoint_disable = ohci_endpoint_disable,
++ .get_frame_number = ohci_get_frame,
++ .hub_status_data = ohci_hub_status_data,
++ .hub_control = ohci_hub_control,
++ .start_port_reset = ohci_start_port_reset,
++};
++
++static int __devinit ohci_hcd_bcm63xx_drv_probe(struct platform_device *pdev)
++{
++ struct resource *res_mem, *res_irq;
++ struct usb_hcd *hcd;
++ struct ohci_hcd *ohci;
++ u32 reg;
++ int ret;
++
++ res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
++ if (!res_mem || !res_irq)
++ return -ENODEV;
++
++ if (BCMCPU_IS_6348()) {
++ struct clk *clk;
++ /* enable USB host clock */
++ clk = clk_get(&pdev->dev, "usbh");
++ if (IS_ERR(clk))
++ return -ENODEV;
++
++ clk_enable(clk);
++ usb_host_clock = clk;
++ bcm_rset_writel(RSET_OHCI_PRIV, 0, OHCI_PRIV_REG);
++
++ } else if (BCMCPU_IS_6358()) {
++ reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SWAP_REG);
++ reg &= ~USBH_PRIV_SWAP_OHCI_ENDN_MASK;
++ reg |= USBH_PRIV_SWAP_OHCI_DATA_MASK;
++ bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_SWAP_REG);
++ /* don't ask... */
++ bcm_rset_writel(RSET_USBH_PRIV, 0x1c0020, USBH_PRIV_TEST_REG);
++ } else
++ return 0;
++
++ hcd = usb_create_hcd(&ohci_bcm63xx_hc_driver, &pdev->dev, "bcm63xx");
++ if (!hcd)
++ return -ENOMEM;
++ hcd->rsrc_start = res_mem->start;
++ hcd->rsrc_len = res_mem->end - res_mem->start + 1;
++
++ if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
++ pr_debug("request_mem_region failed\n");
++ ret = -EBUSY;
++ goto out;
++ }
++
++ hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
++ if (!hcd->regs) {
++ pr_debug("ioremap failed\n");
++ ret = -EIO;
++ goto out1;
++ }
++
++ ohci = hcd_to_ohci(hcd);
++ ohci->flags |= OHCI_QUIRK_BE_MMIO | OHCI_QUIRK_BE_DESC |
++ OHCI_QUIRK_FRAME_NO;
++ ohci_hcd_init(ohci);
++
++ ret = usb_add_hcd(hcd, res_irq->start, IRQF_DISABLED);
++ if (ret)
++ goto out2;
++
++ platform_set_drvdata(pdev, hcd);
++ return 0;
++
++out2:
++ iounmap(hcd->regs);
++out1:
++ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
++out:
++ usb_put_hcd(hcd);
++ return ret;
++}
++
++static int __devexit ohci_hcd_bcm63xx_drv_remove(struct platform_device *pdev)
++{
++ struct usb_hcd *hcd;
++
++ hcd = platform_get_drvdata(pdev);
++ usb_remove_hcd(hcd);
++ iounmap(hcd->regs);
++ usb_put_hcd(hcd);
++ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
++ if (usb_host_clock) {
++ clk_disable(usb_host_clock);
++ clk_put(usb_host_clock);
++ }
++ platform_set_drvdata(pdev, NULL);
++ return 0;
++}
++
++static struct platform_driver ohci_hcd_bcm63xx_driver = {
++ .probe = ohci_hcd_bcm63xx_drv_probe,
++ .remove = __devexit_p(ohci_hcd_bcm63xx_drv_remove),
++ .shutdown = usb_hcd_platform_shutdown,
++ .driver = {
++ .name = "bcm63xx_ohci",
++ .owner = THIS_MODULE,
++ .bus = &platform_bus_type
++ },
++};
++
++MODULE_ALIAS("platform:bcm63xx_ohci");
+diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
+index 8990196..7e360ef 100644
+--- a/drivers/usb/host/ohci-hcd.c
++++ b/drivers/usb/host/ohci-hcd.c
+@@ -1050,6 +1050,11 @@ MODULE_LICENSE ("GPL");
+ #define PLATFORM_DRIVER usb_hcd_pnx4008_driver
+ #endif
+
++#ifdef CONFIG_BCM63XX
++#include "ohci-bcm63xx.c"
++#define PLATFORM_DRIVER ohci_hcd_bcm63xx_driver
++#endif
++
+ #if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7721) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7763)
+diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h
+index faf622e..947e240 100644
+--- a/drivers/usb/host/ohci.h
++++ b/drivers/usb/host/ohci.h
+@@ -549,6 +549,11 @@ static inline struct usb_hcd *ohci_to_hcd (const struct ohci_hcd *ohci)
+ #define writel_be(val, addr) out_be32((__force unsigned *)addr, val)
+ #endif
+
++#if defined(CONFIG_MIPS) && defined(CONFIG_BCM63XX)
++#define readl_be(addr) __raw_readl((__force unsigned *)addr)
++#define writel_be(val, addr) __raw_writel(val, (__force unsigned *)addr)
++#endif
++
+ static inline unsigned int _ohci_readl (const struct ohci_hcd *ohci,
+ __hc32 __iomem * regs)
+ {
+@@ -654,7 +659,7 @@ static inline u32 hc32_to_cpup (const struct ohci_hcd *ohci, const __hc32 *x)
+ * some big-endian SOC implementations. Same thing happens with PSW access.
+ */
+
+-#ifdef CONFIG_PPC_MPC52xx
++#if defined(CONFIG_PPC_MPC52xx) || defined(CONFIG_BCM63XX)
+ #define big_endian_frame_no_quirk(ohci) (ohci->flags & OHCI_QUIRK_FRAME_NO)
+ #else
+ #define big_endian_frame_no_quirk(ohci) 0
+diff --git a/include/asm-mips/mach-bcm63xx/bcm63xx_dev_usb_ohci.h b/include/asm-mips/mach-bcm63xx/bcm63xx_dev_usb_ohci.h
+new file mode 100644
+index 0000000..518a04d
+--- /dev/null
++++ b/include/asm-mips/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_ */
+--
+1.5.4.3
+
projects / openwrt / svn-archive / archive.git / blobdiff