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-rw-r--r--target/linux/cns21xx/patches-3.10/104-cns21xx-usb-ehci-support.patch170
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