diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-2.6.39/010-add_bcm63xx_ohci_controller.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-2.6.39/010-add_bcm63xx_ohci_controller.patch | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-2.6.39/010-add_bcm63xx_ohci_controller.patch b/target/linux/brcm63xx/patches-2.6.39/010-add_bcm63xx_ohci_controller.patch new file mode 100644 index 0000000000..39c732f735 --- /dev/null +++ b/target/linux/brcm63xx/patches-2.6.39/010-add_bcm63xx_ohci_controller.patch @@ -0,0 +1,202 @@ +Signed-off-by: Maxime Bizon <mbizon@freebox.fr> +--- + drivers/usb/host/ohci-bcm63xx.c | 166 +++++++++++++++++++++++++++++++++++++++ + drivers/usb/host/ohci-hcd.c | 5 + + drivers/usb/host/ohci.h | 2 +- + 3 files changed, 172 insertions(+), 1 deletions(-) + create mode 100644 drivers/usb/host/ohci-bcm63xx.c + +--- /dev/null ++++ b/drivers/usb/host/ohci-bcm63xx.c +@@ -0,0 +1,166 @@ ++/* ++ * 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) 2010 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; ++ ++ /* ++ * port 2 can be shared with USB slave, but all boards seem to ++ * have only one host port populated, so we can hardcode it ++ */ ++ ohci->num_ports = 1; ++ ++ ret = ohci_init(ohci); ++ if (ret < 0) ++ return ret; ++ ++ 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; ++ 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; ++ ++ 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); ++ /* ++ * 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_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, 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 +@@ -1054,6 +1054,11 @@ MODULE_LICENSE ("GPL"); + #define PLATFORM_DRIVER ohci_hcd_da8xx_driver + #endif + ++#ifdef CONFIG_BCM63XX ++#include "ohci-bcm63xx.c" ++#define PLATFORM_DRIVER ohci_hcd_bcm63xx_driver ++#endif ++ + #ifdef CONFIG_USB_OHCI_SH + #include "ohci-sh.c" + #define PLATFORM_DRIVER ohci_hcd_sh_driver +--- a/drivers/usb/host/ohci.h ++++ b/drivers/usb/host/ohci.h +@@ -646,7 +646,7 @@ 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 |