+++ /dev/null
-From 0f7d8ff44dc9e7048c141e6589bb590438cfc656 Mon Sep 17 00:00:00 2001
-From: Maxime Bizon <mbizon@freebox.fr>
-Date: Fri, 10 Jun 2011 19:15:47 +0200
-Subject: [PATCH 22/57] 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