--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
-@@ -1338,6 +1338,11 @@ MODULE_LICENSE ("GPL");
- #define PLATFORM_DRIVER ehci_hcd_sead3_driver
- #endif
-
-+#ifdef CONFIG_ARCH_CNS21XX
-+#include "ehci-cns21xx.c"
-+#define PLATFORM_DRIVER ehci_cns21xx_driver
-+#endif
-+
- #if !IS_ENABLED(CONFIG_USB_EHCI_PCI) && \
+@@ -1342,6 +1342,7 @@ MODULE_LICENSE ("GPL");
!IS_ENABLED(CONFIG_USB_EHCI_HCD_PLATFORM) && \
!IS_ENABLED(CONFIG_USB_CHIPIDEA_HOST) && \
+ !IS_ENABLED(CONFIG_USB_EHCI_MXC) && \
++ !IS_ENABLED(CONFIG_USB_EHCI_CNS21XX) && \
+ !defined(PLATFORM_DRIVER) && \
+ !defined(PS3_SYSTEM_BUS_DRIVER) && \
+ !defined(OF_PLATFORM_DRIVER) && \
--- /dev/null
+++ b/drivers/usb/host/ehci-cns21xx.c
-@@ -0,0 +1,187 @@
+@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2008 Cavium Networks
-+ * Copyright (c) 2010-2012 Gabor Juhos <juhosg@openwrt.org>
++ * 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>
+
-+#define DRIVER_NAME "cns21xx-ehci"
-+
-+static int cns21xx_ehci_reset(struct usb_hcd *hcd)
-+{
-+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-+ int ret;
-+
-+ ret = ehci_halt(ehci);
-+ if (ret)
-+ return ret;
-+
-+ ret = ehci_init(hcd);
-+ if (ret)
-+ return ret;
-+
-+ ehci_reset(ehci);
++#include "ehci.h"
+
-+ return 0;
-+}
++#define DRIVER_NAME "cns21xx-ehci"
+
-+static const struct hc_driver ehci_cns21xx_hc_driver = {
-+ .description = hcd_name,
-+ .product_desc = DRIVER_NAME,
-+ .hcd_priv_size = sizeof(struct ehci_hcd),
-+
-+ /*
-+ * generic hardware linkage
-+ */
-+ .irq = ehci_irq,
-+ .flags = HCD_MEMORY | HCD_USB2,
-+
-+ /*
-+ * basic lifecycle operations
-+ */
-+ .reset = cns21xx_ehci_reset,
-+ .start = ehci_run,
-+ .stop = ehci_stop,
-+ .shutdown = ehci_shutdown,
-+
-+ /*
-+ * managing i/o requests and associated device resources
-+ */
-+ .urb_enqueue = ehci_urb_enqueue,
-+ .urb_dequeue = ehci_urb_dequeue,
-+ .endpoint_disable = ehci_endpoint_disable,
-+ .endpoint_reset = ehci_endpoint_reset,
-+
-+ /*
-+ * scheduling support
-+ */
-+ .get_frame_number = ehci_get_frame,
-+
-+ /*
-+ * root hub support
-+ */
-+ .hub_status_data = ehci_hub_status_data,
-+ .hub_control = ehci_hub_control,
-+ .relinquish_port = ehci_relinquish_port,
-+ .port_handed_over = ehci_port_handed_over,
-+
-+ .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
-+};
++static const char hcd_name[] = "ehci-cns21xx";
++static struct hc_driver __read_mostly ehci_cns21xx_hc_driver;
+
-+static void cns21xx_ehci_init_hc(void)
++static void ehci_cns21xx_init_hc(void)
+{
+ void __iomem *base = (void __iomem *) CNS21XX_EHCI_CONFIG_BASE_VIRT;
+
+ int irq;
+ int ret;
+
-+ if (usb_disabled())
++ 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_IRQ, 0);
++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
-+ dev_dbg(&pdev->dev, "no IRQ specified for %s\n",
++ dev_dbg(&pdev->dev, "no base address specified for %s\n",
+ dev_name(&pdev->dev));
-+ return -ENODEV;
++ return -EINVAL;
+ }
-+ irq = res->start;
+
+ hcd = usb_create_hcd(&ehci_cns21xx_hc_driver, &pdev->dev,
+ dev_name(&pdev->dev));
+ if (!hcd)
+ return -ENOMEM;
+
-+ 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));
-+ ret = -ENODEV;
-+ goto err_put_hcd;
-+ }
+ hcd->rsrc_start = res->start;
+ hcd->rsrc_len = res->end - res->start + 1;
+
-+ if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
-+ dev_dbg(&pdev->dev, "controller already in use\n");
-+ ret = -EBUSY;
++ hcd->regs = devm_ioremap_resource(&pdev->dev, res);
++ if (IS_ERR(hcd->regs)) {
++ ret = PTR_ERR(hcd->regs);
+ goto err_put_hcd;
+ }
+
-+ hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
-+ if (!hcd->regs) {
-+ dev_dbg(&pdev->dev, "error mapping memory\n");
-+ ret = -EFAULT;
-+ goto err_release_region;
-+ }
-+
-+ cns21xx_ehci_init_hc();
++ ehci_cns21xx_init_hc();
+
+ ehci = hcd_to_ehci(hcd);
-+
+ ehci->caps = hcd->regs;
-+ ehci->regs = hcd->regs +
-+ HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase));
-+ dbg_hcs_params(ehci, "reset");
-+ dbg_hcc_params(ehci, "reset");
-+
-+ /* cache this readonly data; minimize chip reads */
-+ ehci->hcs_params = readl(&ehci->caps->hcs_params);
-+ ehci->sbrn = 0x20;
+
-+ ret = usb_add_hcd(hcd, CNS21XX_IRQ_EHCI, IRQF_DISABLED);
++ ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
+ if (ret)
-+ goto err_unmap;
++ goto err_put_hcd;
+
+ platform_set_drvdata(pdev, hcd);
++
+ return 0;
+
-+err_unmap:
-+ iounmap(hcd->regs);
-+err_release_region:
-+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+err_put_hcd:
+ usb_put_hcd(hcd);
++
+ return ret;
+}
+
+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+ usb_remove_hcd(hcd);
-+ iounmap(hcd->regs);
-+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+ usb_put_hcd(hcd);
-+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+ },
+};
+
++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
@@ -382,6 +382,7 @@ config ARCH_CNS21XX
help
Support for Cavium Networks CNS21xx family.
+--- a/drivers/usb/host/Kconfig
++++ b/drivers/usb/host/Kconfig
+@@ -219,6 +219,14 @@ 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 USB_EHCI_HCD && ARCH_CNS3XXX
+--- a/drivers/usb/host/Makefile
++++ b/drivers/usb/host/Makefile
+@@ -27,6 +27,7 @@ obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o
+ obj-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o
+ obj-$(CONFIG_USB_EHCI_HCD_PLATFORM) += ehci-platform.o
+ obj-$(CONFIG_USB_EHCI_MXC) += ehci-mxc.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
projects / openwrt / openwrt.git / commitdiff