You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
170 lines
4.1 KiB
170 lines
4.1 KiB
--- /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
|
|
|