--- /dev/null
+From f4aa3db2fb59983d45a9038daabad76102d32fc4 Mon Sep 17 00:00:00 2001
+From: Maxime Bizon <mbizon@freebox.fr>
+Date: Fri, 10 Jun 2011 19:14:30 +0200
+Subject: [PATCH 20/57] ohci: add driver for bcm63xx integrated controller.
+
+---
+ drivers/usb/host/Kconfig | 9 ++
+ drivers/usb/host/ohci-bcm63xx.c | 175 +++++++++++++++++++++++++++++++++++++++
+ drivers/usb/host/ohci-hcd.c | 5 +
+ drivers/usb/host/ohci.h | 2 +-
+ 4 files changed, 190 insertions(+), 1 deletions(-)
+ create mode 100644 drivers/usb/host/ohci-bcm63xx.c
+
+--- a/drivers/usb/host/Kconfig
++++ b/drivers/usb/host/Kconfig
+@@ -296,6 +296,15 @@ config USB_OHCI_HCD
+ To compile this driver as a module, choose M here: the
+ module will be called ohci-hcd.
+
++config USB_OHCI_BCM63XX
++ bool "Support for Broadcom 63xx on-chip OHCI USB controller"
++ depends on USB_OHCI_HCD && BCM63XX
++ select USB_OHCI_BIG_ENDIAN_DESC
++ select USB_OHCI_BIG_ENDIAN_MMIO
++ ---help---
++ Enables support for the on-chip OHCI controller on
++ BCM63XX chips.
++
+ config USB_OHCI_HCD_OMAP1
+ bool "OHCI support for OMAP1/2 chips"
+ depends on USB_OHCI_HCD && (ARCH_OMAP1 || ARCH_OMAP2)
+--- /dev/null
++++ b/drivers/usb/host/ohci-bcm63xx.c
+@@ -0,0 +1,175 @@
++/*
++ * 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;
++
++ ohci->num_ports = 1;
++
++ 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;
++ struct usb_hcd *hcd;
++ struct ohci_hcd *ohci;
++ struct clk *clk;
++ u32 reg;
++ int ret, irq;
++
++ res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ irq = platform_get_irq(pdev, 0);
++ if (!res_mem || irq < 0)
++ return -ENODEV;
++
++ /* enable USB host clock */
++ clk = clk_get(&pdev->dev, "usbh");
++ if (IS_ERR(clk))
++ return -ENODEV;
++
++ clk_enable(clk);
++ usb_host_clock = clk;
++ msleep(100);
++
++ if (BCMCPU_IS_6348())
++ 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_6358_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_6358_REG);
++ /*
++ * The magic value comes for the original vendor BSP
++ * and is needed for USB to work. Datasheet does not
++ * help, so the magic value is used as-is.
++ */
++ bcm_rset_writel(RSET_USBH_PRIV, 0x1c0020,
++ USBH_PRIV_TEST_6358_REG);
++
++ } else if (BCMCPU_IS_6368()) {
++ reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SWAP_6368_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_6368_REG);
++
++ reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SETUP_6368_REG);
++ reg |= USBH_PRIV_SETUP_IOC_MASK;
++ bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_SETUP_6368_REG);
++ }
++
++ 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, irq, 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,
++ },
++};
++
++MODULE_ALIAS("platform:bcm63xx_ohci");
+--- a/drivers/usb/host/ohci-hcd.c
++++ b/drivers/usb/host/ohci-hcd.c
+@@ -1121,6 +1121,11 @@ MODULE_LICENSE ("GPL");
+ #define PLATFORM_DRIVER ohci_xls_driver
+ #endif
+
++#ifdef CONFIG_USB_OHCI_BCM63XX
++#include "ohci-bcm63xx.c"
++#define PLATFORM_DRIVER ohci_hcd_bcm63xx_driver
++#endif
++
+ #if !defined(PCI_DRIVER) && \
+ !defined(PLATFORM_DRIVER) && \
+ !defined(OMAP1_PLATFORM_DRIVER) && \
+--- a/drivers/usb/host/ohci.h
++++ b/drivers/usb/host/ohci.h
+@@ -652,7 +652,7 @@ static inline u32 hc32_to_cpup (const st
+ * 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
projects / openwrt / staging / mkresin.git / blobdiff