[brcm63xx] bcm6338 can support PCI since it has MPI
[openwrt.git] / target / linux / brcm63xx / patches-2.6.27 / 008-usb_ehci_support.patch
index 5486d98..630078b 100644 (file)
@@ -17,246 +17,9 @@ Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
  create mode 100644 drivers/usb/host/ehci-bcm63xx.c
  create mode 100644 include/asm-mips/mach-bcm63xx/bcm63xx_dev_usb_ehci.h
 
-diff --git a/arch/mips/bcm63xx/Kconfig b/arch/mips/bcm63xx/Kconfig
-index f2ddb87..be120f7 100644
---- a/arch/mips/bcm63xx/Kconfig
-+++ b/arch/mips/bcm63xx/Kconfig
-@@ -14,4 +14,6 @@ config BCM63XX_CPU_6358
-       select USB_ARCH_HAS_OHCI
-       select USB_OHCI_BIG_ENDIAN_DESC
-       select USB_OHCI_BIG_ENDIAN_MMIO
-+      select USB_ARCH_HAS_EHCI
-+      select USB_EHCI_BIG_ENDIAN_MMIO
- endmenu
-diff --git a/arch/mips/bcm63xx/Makefile b/arch/mips/bcm63xx/Makefile
-index 75f0d54..99e335d 100644
---- a/arch/mips/bcm63xx/Makefile
-+++ b/arch/mips/bcm63xx/Makefile
-@@ -2,4 +2,5 @@ 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-y         += dev-usb-ehci.o
- obj-$(CONFIG_EARLY_PRINTK)    += early_printk.o
-diff --git a/arch/mips/bcm63xx/dev-usb-ehci.c b/arch/mips/bcm63xx/dev-usb-ehci.c
-new file mode 100644
-index 0000000..7885405
---- /dev/null
-+++ b/arch/mips/bcm63xx/dev-usb-ehci.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_ehci.h>
-+
-+static struct resource ehci_resources[] = {
-+      {
-+              .start          = -1, /* filled at runtime */
-+              .end            = -1, /* filled at runtime */
-+              .flags          = IORESOURCE_MEM,
-+      },
-+      {
-+              .start          = -1, /* filled at runtime */
-+              .flags          = IORESOURCE_IRQ,
-+      },
-+};
-+
-+static u64 ehci_dmamask = ~(u32)0;
-+
-+static struct platform_device bcm63xx_ehci_device = {
-+      .name           = "bcm63xx_ehci",
-+      .id             = 0,
-+      .num_resources  = ARRAY_SIZE(ehci_resources),
-+      .resource       = ehci_resources,
-+      .dev            = {
-+              .dma_mask               = &ehci_dmamask,
-+              .coherent_dma_mask      = 0xffffffff,
-+      },
-+};
-+
-+int __init bcm63xx_ehci_register(void)
-+{
-+      if (!BCMCPU_IS_6358())
-+              return 0;
-+
-+      ehci_resources[0].start = bcm63xx_regset_address(RSET_EHCI0);
-+      ehci_resources[0].end = ehci_resources[0].start;
-+      ehci_resources[0].end += RSET_EHCI_SIZE - 1;
-+      ehci_resources[1].start = bcm63xx_get_irq_number(IRQ_EHCI0);
-+      return platform_device_register(&bcm63xx_ehci_device);
-+}
-diff --git a/drivers/usb/host/ehci-bcm63xx.c b/drivers/usb/host/ehci-bcm63xx.c
-new file mode 100644
-index 0000000..2fef571
---- /dev/null
-+++ b/drivers/usb/host/ehci-bcm63xx.c
-@@ -0,0 +1,152 @@
-+/*
-+ * 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/platform_device.h>
-+#include <bcm63xx_cpu.h>
-+#include <bcm63xx_regs.h>
-+#include <bcm63xx_io.h>
-+
-+static int ehci_bcm63xx_setup(struct usb_hcd *hcd)
-+{
-+      struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-+      int retval;
-+
-+      retval = ehci_halt(ehci);
-+      if (retval)
-+              return retval;
-+
-+      retval = ehci_init(hcd);
-+      if (retval)
-+              return retval;
-+
-+      hcd->has_tt = 1;
-+      ehci_reset(ehci);
-+      ehci_port_power(ehci, 0);
-+
-+      return retval;
-+}
-+
-+
-+static const struct hc_driver ehci_bcm63xx_hc_driver = {
-+      .description =          hcd_name,
-+      .product_desc =         "BCM63XX integrated EHCI controller",
-+      .hcd_priv_size =        sizeof(struct ehci_hcd),
-+
-+      .irq =                  ehci_irq,
-+      .flags =                HCD_MEMORY | HCD_USB2,
-+
-+      .reset =                ehci_bcm63xx_setup,
-+      .start =                ehci_run,
-+      .stop =                 ehci_stop,
-+      .shutdown =             ehci_shutdown,
-+
-+      .urb_enqueue =          ehci_urb_enqueue,
-+      .urb_dequeue =          ehci_urb_dequeue,
-+      .endpoint_disable =     ehci_endpoint_disable,
-+
-+      .get_frame_number =     ehci_get_frame,
-+
-+      .hub_status_data =      ehci_hub_status_data,
-+      .hub_control =          ehci_hub_control,
-+      .bus_suspend =          ehci_bus_suspend,
-+      .bus_resume =           ehci_bus_resume,
-+      .relinquish_port =      ehci_relinquish_port,
-+      .port_handed_over =     ehci_port_handed_over,
-+};
-+
-+static int __devinit ehci_hcd_bcm63xx_drv_probe(struct platform_device *pdev)
-+{
-+      struct resource *res_mem, *res_irq;
-+      struct usb_hcd *hcd;
-+      struct ehci_hcd *ehci;
-+      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;
-+
-+      reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SWAP_REG);
-+      reg &= ~USBH_PRIV_SWAP_EHCI_DATA_MASK;
-+      reg |= USBH_PRIV_SWAP_EHCI_ENDN_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);
-+
-+      hcd = usb_create_hcd(&ehci_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;
-+      }
-+
-+      ehci = hcd_to_ehci(hcd);
-+      ehci->big_endian_mmio = 1;
-+      ehci->big_endian_desc = 0;
-+      ehci->caps = hcd->regs;
-+      ehci->regs = hcd->regs +
-+              HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
-+      ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
-+      ehci->sbrn = 0x20;
-+
-+      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 ehci_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);
-+      platform_set_drvdata(pdev, NULL);
-+      return 0;
-+}
-+
-+static struct platform_driver ehci_hcd_bcm63xx_driver = {
-+      .probe          = ehci_hcd_bcm63xx_drv_probe,
-+      .remove         = __devexit_p(ehci_hcd_bcm63xx_drv_remove),
-+      .shutdown       = usb_hcd_platform_shutdown,
-+      .driver         = {
-+              .name   = "bcm63xx_ehci",
-+              .owner  = THIS_MODULE,
-+              .bus    = &platform_bus_type
-+      },
-+};
-+
-+MODULE_ALIAS("platform:bcm63xx_ehci");
-diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
-index 8409e07..3230ba3 100644
 --- a/drivers/usb/host/ehci-hcd.c
 +++ b/drivers/usb/host/ehci-hcd.c
-@@ -1040,6 +1040,11 @@ MODULE_LICENSE ("GPL");
+@@ -1041,6 +1041,11 @@ MODULE_LICENSE ("GPL");
  #define       PLATFORM_DRIVER         ixp4xx_ehci_driver
  #endif
  
@@ -268,11 +31,9 @@ index 8409e07..3230ba3 100644
  #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
      !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER)
  #error "missing bus glue for ehci-hcd"
-diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
-index 5799298..71d0eca 100644
 --- a/drivers/usb/host/ehci.h
 +++ b/drivers/usb/host/ehci.h
-@@ -755,6 +755,11 @@ ehci_port_speed(struct ehci_hcd *ehci, unsigned int portsc)
+@@ -764,6 +764,11 @@ ehci_port_speed(struct ehci_hcd *ehci, u
  #define writel_be(val, addr)  __raw_writel(val, (__force unsigned *)addr)
  #endif
  
@@ -284,18 +45,3 @@ index 5799298..71d0eca 100644
  static inline unsigned int ehci_readl(const struct ehci_hcd *ehci,
                __u32 __iomem * regs)
  {
-diff --git a/include/asm-mips/mach-bcm63xx/bcm63xx_dev_usb_ehci.h b/include/asm-mips/mach-bcm63xx/bcm63xx_dev_usb_ehci.h
-new file mode 100644
-index 0000000..17fb519
---- /dev/null
-+++ b/include/asm-mips/mach-bcm63xx/bcm63xx_dev_usb_ehci.h
-@@ -0,0 +1,6 @@
-+#ifndef BCM63XX_DEV_USB_EHCI_H_
-+#define BCM63XX_DEV_USB_EHCI_H_
-+
-+int bcm63xx_ehci_register(void);
-+
-+#endif /* BCM63XX_DEV_USB_EHCI_H_ */
--- 
-1.5.4.3
-
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