--- /dev/null
+From db58271d5152aa1d3894fdef13ca04379139d5d9 Mon Sep 17 00:00:00 2001
+From: Maxime Bizon <mbizon@freebox.fr>
+Date: Fri, 10 Jun 2011 19:15:47 +0200
+Subject: [PATCH 25/63] ehci: add driver for bcm63xx integrated controller.
+
+---
+ drivers/usb/host/Kconfig | 10 ++-
+ drivers/usb/host/ehci-bcm63xx.c | 185 +++++++++++++++++++++++++++++++++++++++
+ drivers/usb/host/ehci-hcd.c | 5 +
+ 3 files changed, 199 insertions(+), 1 deletions(-)
+ create mode 100644 drivers/usb/host/ehci-bcm63xx.c
+
+--- a/drivers/usb/host/Kconfig
++++ b/drivers/usb/host/Kconfig
+@@ -106,7 +106,7 @@ config USB_EHCI_BIG_ENDIAN_MMIO
+ depends on USB_EHCI_HCD && (PPC_CELLEB || PPC_PS3 || 440EPX || \
+ ARCH_IXP4XX || XPS_USB_HCD_XILINX || \
+ PPC_MPC512x || CPU_CAVIUM_OCTEON || \
+- PMC_MSP || SPARC_LEON)
++ PMC_MSP || SPARC_LEON || BCM63XX)
+ default y
+
+ config USB_EHCI_BIG_ENDIAN_DESC
+@@ -129,6 +129,14 @@ config XPS_USB_HCD_XILINX
+ config USB_FSL_MPH_DR_OF
+ tristate
+
++config USB_EHCI_BCM63XX
++ bool "Support for Broadcom 63xx on-chip EHCI USB controller"
++ depends on USB_EHCI_HCD && BCM63XX
++ select USB_EHCI_BIG_ENDIAN_MMIO
++ ---help---
++ Enables support for the on-chip EHCI controller on
++ BCM6358 and later chips.
++
+ config USB_EHCI_FSL
+ bool "Support for Freescale PPC on-chip EHCI USB controller"
+ depends on USB_EHCI_HCD && FSL_SOC
+--- /dev/null
++++ b/drivers/usb/host/ehci-bcm63xx.c
+@@ -0,0 +1,185 @@
++/*
++ * 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 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;
++
++ 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;
++ struct usb_hcd *hcd;
++ struct ehci_hcd *ehci;
++ 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_6358()) {
++ reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SWAP_6358_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_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_EHCI_DATA_MASK;
++ reg |= USBH_PRIV_SWAP_EHCI_ENDN_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(&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, 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, 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 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);
++ 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 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,
++ },
++};
++
++MODULE_ALIAS("platform:bcm63xx_ehci");
+--- a/drivers/usb/host/ehci-hcd.c
++++ b/drivers/usb/host/ehci-hcd.c
+@@ -1376,6 +1376,11 @@ MODULE_LICENSE ("GPL");
+ #define PLATFORM_DRIVER ehci_mv_driver
+ #endif
+
++#ifdef CONFIG_USB_EHCI_BCM63XX
++#include "ehci-bcm63xx.c"
++#define PLATFORM_DRIVER ehci_hcd_bcm63xx_driver
++#endif
++
+ #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
+ !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \
+ !defined(XILINX_OF_PLATFORM_DRIVER)
projects / openwrt.git / blobdiff