diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-2.6.37/011-add_bcm63xx_ehci_controller.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-2.6.37/011-add_bcm63xx_ehci_controller.patch | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-2.6.37/011-add_bcm63xx_ehci_controller.patch b/target/linux/brcm63xx/patches-2.6.37/011-add_bcm63xx_ehci_controller.patch new file mode 100644 index 000000000..e6e763d99 --- /dev/null +++ b/target/linux/brcm63xx/patches-2.6.37/011-add_bcm63xx_ehci_controller.patch @@ -0,0 +1,178 @@ +Signed-off-by: Maxime Bizon <mbizon@freebox.fr> +--- + drivers/usb/host/ehci-bcm63xx.c | 154 +++++++++++++++++++++++++++++++++++++++ + drivers/usb/host/ehci-hcd.c | 5 + + 2 files changed, 159 insertions(+), 0 deletions(-) + create mode 100644 drivers/usb/host/ehci-bcm63xx.c + +--- /dev/null ++++ b/drivers/usb/host/ehci-bcm63xx.c +@@ -0,0 +1,154 @@ ++/* ++ * 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; ++ ++ 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; ++ 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; ++ ++ 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); ++ ++ /* ++ * 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); ++ ++ 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, 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); ++ 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 +@@ -1229,6 +1229,11 @@ MODULE_LICENSE ("GPL"); + #define PLATFORM_DRIVER ehci_octeon_driver + #endif + ++#ifdef CONFIG_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) |