diff options
Diffstat (limited to 'target/linux/cns21xx/patches-3.10/104-cns21xx-usb-ehci-support.patch')
| -rw-r--r-- | target/linux/cns21xx/patches-3.10/104-cns21xx-usb-ehci-support.patch | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/target/linux/cns21xx/patches-3.10/104-cns21xx-usb-ehci-support.patch b/target/linux/cns21xx/patches-3.10/104-cns21xx-usb-ehci-support.patch new file mode 100644 index 0000000000..6ccfa4dee9 --- /dev/null +++ b/target/linux/cns21xx/patches-3.10/104-cns21xx-usb-ehci-support.patch @@ -0,0 +1,170 @@ +--- /dev/null ++++ b/drivers/usb/host/ehci-cns21xx.c +@@ -0,0 +1,130 @@ ++/* ++ * Copyright (c) 2008 Cavium Networks ++ * Copyright (c) 2010-2013 Gabor Juhos <juhosg@openwrt.org> ++ * ++ * This file is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License, Version 2, as ++ * published by the Free Software Foundation. ++ */ ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/io.h> ++#include <linux/platform_device.h> ++#include <linux/irq.h> ++#include <linux/usb.h> ++#include <linux/usb/hcd.h> ++ ++#include <mach/cns21xx.h> ++ ++#include "ehci.h" ++ ++#define DRIVER_NAME "cns21xx-ehci" ++ ++static const char hcd_name[] = "ehci-cns21xx"; ++static struct hc_driver __read_mostly ehci_cns21xx_hc_driver; ++ ++static void ehci_cns21xx_init_hc(void) ++{ ++ void __iomem *base = (void __iomem *) CNS21XX_EHCI_CONFIG_BASE_VIRT; ++ ++ __raw_writel(0x106, base + 0x04); ++ __raw_writel((3 << 5) | 0x2000, base + 0x40); ++ msleep(100); ++} ++ ++static int ehci_cns21xx_probe(struct platform_device *pdev) ++{ ++ struct usb_hcd *hcd; ++ struct ehci_hcd *ehci; ++ struct resource *res; ++ int irq; ++ int ret; ++ ++ irq = platform_get_irq(pdev, 0); ++ if (irq < 0) { ++ dev_dbg(&pdev->dev, "no IRQ specified for %s\n", ++ dev_name(&pdev->dev)); ++ return -ENODEV; ++ } ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!res) { ++ dev_dbg(&pdev->dev, "no base address specified for %s\n", ++ dev_name(&pdev->dev)); ++ return -EINVAL; ++ } ++ ++ hcd = usb_create_hcd(&ehci_cns21xx_hc_driver, &pdev->dev, ++ dev_name(&pdev->dev)); ++ if (!hcd) ++ return -ENOMEM; ++ ++ hcd->rsrc_start = res->start; ++ hcd->rsrc_len = res->end - res->start + 1; ++ ++ hcd->regs = devm_ioremap_resource(&pdev->dev, res); ++ if (IS_ERR(hcd->regs)) { ++ ret = PTR_ERR(hcd->regs); ++ goto err_put_hcd; ++ } ++ ++ ehci_cns21xx_init_hc(); ++ ++ ehci = hcd_to_ehci(hcd); ++ ehci->caps = hcd->regs; ++ ++ ret = usb_add_hcd(hcd, irq, IRQF_SHARED); ++ if (ret) ++ goto err_put_hcd; ++ ++ platform_set_drvdata(pdev, hcd); ++ ++ return 0; ++ ++err_put_hcd: ++ usb_put_hcd(hcd); ++ ++ return ret; ++} ++ ++static int ehci_cns21xx_remove(struct platform_device *pdev) ++{ ++ struct usb_hcd *hcd = platform_get_drvdata(pdev); ++ ++ usb_remove_hcd(hcd); ++ usb_put_hcd(hcd); ++ ++ return 0; ++} ++ ++static struct platform_driver ehci_cns21xx_driver = { ++ .probe = ehci_cns21xx_probe, ++ .remove = ehci_cns21xx_remove, ++ .shutdown = usb_hcd_platform_shutdown, ++ .driver = { ++ .owner = THIS_MODULE, ++ .name = DRIVER_NAME, ++ }, ++}; ++ ++static int __init ehci_cns21xx_init(void) ++{ ++ if (usb_disabled()) ++ return -ENODEV; ++ ++ ehci_init_driver(&ehci_cns21xx_hc_driver, NULL); ++ ++ return platform_driver_register(&ehci_cns21xx_driver); ++} ++module_init(ehci_cns21xx_init); ++ ++static void __exit ehci_cns21xx_exit(void) ++{ ++ platform_driver_unregister(&ehci_cns21xx_driver); ++} ++module_exit(ehci_cns21xx_exit); ++ ++MODULE_DESCRIPTION("Cavium Networks CNS21xx built-in EHCI controller driver"); ++MODULE_ALIAS("platform:" DRIVER_NAME); ++MODULE_LICENSE("GPL v2"); +--- a/arch/arm/Kconfig ++++ b/arch/arm/Kconfig +@@ -375,6 +375,7 @@ config ARCH_CNS21XX + select ARCH_REQUIRE_GPIOLIB + select ARM_L1_CACHE_SHIFT_4 + select USB_ARCH_HAS_OHCI ++ select USB_ARCH_HAS_EHCI + help + Support for Cavium Networks CNS21xx family. + +--- a/drivers/usb/host/Kconfig ++++ b/drivers/usb/host/Kconfig +@@ -249,6 +249,14 @@ config USB_W90X900_EHCI + ---help--- + Enables support for the W90X900 USB controller + ++config USB_EHCI_CNS21XX ++ tristate "EHCI support for the Cavium CNS21XX SoCs" ++ depends on ARCH_CNS21XX ++ default y ++ help ++ Enables support for the built-in EHCI controller of the ++ Cavium CNS21xx SoCs. ++ + config USB_CNS3XXX_EHCI + bool "Cavium CNS3XXX EHCI Module (DEPRECATED)" + depends on ARCH_CNS3XXX +--- a/drivers/usb/host/Makefile ++++ b/drivers/usb/host/Makefile +@@ -33,6 +33,7 @@ obj-$(CONFIG_USB_EHCI_HCD_SPEAR) += ehci + obj-$(CONFIG_USB_EHCI_S5P) += ehci-s5p.o + obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o + obj-$(CONFIG_USB_EHCI_MSM) += ehci-msm.o ++obj-$(CONFIG_USB_EHCI_CNS21XX) += ehci-cns21xx.o + + obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o + obj-$(CONFIG_USB_ISP116X_HCD) += isp116x-hcd.o |