diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.0/0031-USB-EHCI-Add-a-generic-platform-device-driver.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.0/0031-USB-EHCI-Add-a-generic-platform-device-driver.patch | 265 |
1 files changed, 0 insertions, 265 deletions
diff --git a/target/linux/brcm47xx/patches-3.0/0031-USB-EHCI-Add-a-generic-platform-device-driver.patch b/target/linux/brcm47xx/patches-3.0/0031-USB-EHCI-Add-a-generic-platform-device-driver.patch deleted file mode 100644 index 43cf86a2b1..0000000000 --- a/target/linux/brcm47xx/patches-3.0/0031-USB-EHCI-Add-a-generic-platform-device-driver.patch +++ /dev/null @@ -1,265 +0,0 @@ -From aa05e0048cec25719921291e8749674b8cc66fc0 Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens <hauke@hauke-m.de> -Date: Sat, 26 Nov 2011 21:28:56 +0100 -Subject: [PATCH 18/21] USB: EHCI: Add a generic platform device driver - -This adds a generic driver for platform devices. It works like the PCI -driver and is based on it. This is for devices which do not have an own -bus but their EHCI controller works like a PCI controller. It will be -used for the Broadcom bcma and ssb USB EHCI controller. - -Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> ---- - drivers/usb/host/Kconfig | 10 ++ - drivers/usb/host/ehci-hcd.c | 5 + - drivers/usb/host/ehci-platform.c | 211 ++++++++++++++++++++++++++++++++++++++ - 3 files changed, 226 insertions(+), 0 deletions(-) - create mode 100644 drivers/usb/host/ehci-platform.c - ---- a/drivers/usb/host/Kconfig -+++ b/drivers/usb/host/Kconfig -@@ -388,6 +388,16 @@ config USB_OHCI_HCD_PLATFORM - - If unsure, say N. - -+config USB_EHCI_HCD_PLATFORM -+ bool "Generic EHCI driver for a platform device" -+ depends on USB_EHCI_HCD && EXPERIMENTAL -+ default n -+ ---help--- -+ Adds an EHCI host driver for a generic platform device, which -+ provieds a memory space and an irq. -+ -+ If unsure, say N. -+ - config USB_OHCI_BIG_ENDIAN_DESC - bool - depends on USB_OHCI_HCD ---- a/drivers/usb/host/ehci-hcd.c -+++ b/drivers/usb/host/ehci-hcd.c -@@ -1312,6 +1312,11 @@ MODULE_LICENSE ("GPL"); - #define PLATFORM_DRIVER ehci_grlib_driver - #endif - -+#ifdef CONFIG_USB_EHCI_HCD_PLATFORM -+#include "ehci-platform.c" -+#define PLATFORM_DRIVER ehci_platform_driver -+#endif -+ - #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \ - !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \ - !defined(XILINX_OF_PLATFORM_DRIVER) ---- /dev/null -+++ b/drivers/usb/host/ehci-platform.c -@@ -0,0 +1,211 @@ -+/* -+ * Generic platform ehci driver -+ * -+ * Copyright 2007 Steven Brown <sbrown@cortland.com> -+ * Copyright 2010-2011 Hauke Mehrtens <hauke@hauke-m.de> -+ * -+ * Derived from the ohci-ssb driver -+ * Copyright 2007 Michael Buesch <mb@bu3sch.de> -+ * -+ * Derived from the EHCI-PCI driver -+ * Copyright (c) 2000-2004 by David Brownell -+ * -+ * Derived from the ohci-pci driver -+ * Copyright 1999 Roman Weissgaerber -+ * Copyright 2000-2002 David Brownell -+ * Copyright 1999 Linus Torvalds -+ * Copyright 1999 Gregory P. Smith -+ * -+ * Licensed under the GNU/GPL. See COPYING for details. -+ */ -+#include <linux/platform_device.h> -+ -+static int ehci_platform_reset(struct usb_hcd *hcd) -+{ -+ struct ehci_hcd *ehci = hcd_to_ehci(hcd); -+ int retval; -+ -+ 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 = ehci_readl(ehci, &ehci->caps->hcs_params); -+ -+ retval = ehci_halt(ehci); -+ if (retval) -+ return retval; -+ -+ /* data structure init */ -+ retval = ehci_init(hcd); -+ if (retval) -+ return retval; -+ -+ ehci_reset(ehci); -+ -+ ehci_port_power(ehci, 1); -+ -+ return retval; -+} -+ -+static const struct hc_driver ehci_platform_hc_driver = { -+ .description = "platform-usb-ehci", -+ .product_desc = "Generic Platform EHCI Controller", -+ .hcd_priv_size = sizeof(struct ehci_hcd), -+ -+ .irq = ehci_irq, -+ .flags = HCD_MEMORY | HCD_USB2, -+ -+ .reset = ehci_platform_reset, -+ .start = ehci_run, -+ .stop = ehci_stop, -+ .shutdown = ehci_shutdown, -+ -+ .urb_enqueue = ehci_urb_enqueue, -+ .urb_dequeue = ehci_urb_dequeue, -+ .endpoint_disable = ehci_endpoint_disable, -+ .endpoint_reset = ehci_endpoint_reset, -+ -+ .get_frame_number = ehci_get_frame, -+ -+ .hub_status_data = ehci_hub_status_data, -+ .hub_control = ehci_hub_control, -+#if defined(CONFIG_PM) -+ .bus_suspend = ehci_bus_suspend, -+ .bus_resume = ehci_bus_resume, -+#endif -+ .relinquish_port = ehci_relinquish_port, -+ .port_handed_over = ehci_port_handed_over, -+ -+ .update_device = ehci_update_device, -+ -+ .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, -+}; -+ -+static int ehci_platform_attach(struct platform_device *dev) -+{ -+ struct usb_hcd *hcd; -+ struct resource *res_irq, *res_mem; -+ int err = -ENOMEM; -+ -+ hcd = usb_create_hcd(&ehci_platform_hc_driver, &dev->dev, -+ dev_name(&dev->dev)); -+ if (!hcd) -+ goto err_return; -+ -+ res_irq = platform_get_resource(dev, IORESOURCE_IRQ, 0); -+ if (!res_irq) { -+ err = -ENXIO; -+ goto err_return; -+ } -+ res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0); -+ if (!res_mem) { -+ err = -ENXIO; -+ goto err_return; -+ } -+ hcd->rsrc_start = res_mem->start; -+ hcd->rsrc_len = res_mem->end - res_mem->start + 1; -+ -+ /* -+ * start & size modified per sbutils.c -+ */ -+ hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len); -+ if (!hcd->regs) -+ goto err_put_hcd; -+ err = usb_add_hcd(hcd, res_irq->start, IRQF_SHARED); -+ if (err) -+ goto err_iounmap; -+ -+ platform_set_drvdata(dev, hcd); -+ -+ return err; -+ -+err_iounmap: -+ iounmap(hcd->regs); -+err_put_hcd: -+ usb_put_hcd(hcd); -+err_return: -+ return err; -+} -+ -+static int ehci_platform_probe(struct platform_device *dev) -+{ -+ int err; -+ -+ if (usb_disabled()) -+ return -ENODEV; -+ -+ err = ehci_platform_attach(dev); -+ -+ return err; -+} -+ -+static int ehci_platform_remove(struct platform_device *dev) -+{ -+ struct usb_hcd *hcd; -+ -+ hcd = platform_get_drvdata(dev); -+ if (!hcd) -+ return -ENODEV; -+ -+ usb_remove_hcd(hcd); -+ iounmap(hcd->regs); -+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len); -+ usb_put_hcd(hcd); -+ -+ return 0; -+} -+ -+static void ehci_platform_shutdown(struct platform_device *dev) -+{ -+ struct usb_hcd *hcd; -+ -+ hcd = platform_get_drvdata(dev); -+ if (!hcd) -+ return; -+ -+ if (hcd->driver->shutdown) -+ hcd->driver->shutdown(hcd); -+} -+ -+#ifdef CONFIG_PM -+ -+static int ehci_platform_suspend(struct platform_device *dev, -+ pm_message_t state) -+{ -+ return 0; -+} -+ -+static int ehci_platform_resume(struct platform_device *dev) -+{ -+ struct usb_hcd *hcd = platform_get_drvdata(dev); -+ -+ ehci_finish_controller_resume(hcd); -+ return 0; -+} -+ -+#else /* !CONFIG_PM */ -+#define ehci_platform_suspend NULL -+#define ehci_platform_resume NULL -+#endif /* CONFIG_PM */ -+ -+static const struct platform_device_id ehci_platform_table[] = { -+ { "ehci-platform", 0 }, -+ { } -+}; -+MODULE_DEVICE_TABLE(platform, ehci_platform_table); -+ -+static struct platform_driver ehci_platform_driver = { -+ .id_table = ehci_platform_table, -+ .probe = ehci_platform_probe, -+ .remove = ehci_platform_remove, -+ .shutdown = ehci_platform_shutdown, -+ .suspend = ehci_platform_suspend, -+ .resume = ehci_platform_resume, -+ .driver = { -+ .name = "ehci-platform", -+ } -+}; |