From 0d64017ecfa257fee3dcfb76aa6f3276017bc517 Mon Sep 17 00:00:00 2001 From: Imre Kaloz Date: Sat, 26 Apr 2008 10:02:55 +0000 Subject: [PATCH] backported ixp4xx ehci driver SVN-Revision: 10946 --- .../402-ixp4xx_ehci_backport.patch | 215 ++++++++++++++++++ 1 file changed, 215 insertions(+) create mode 100644 target/linux/ixp4xx/patches-2.6.24/402-ixp4xx_ehci_backport.patch diff --git a/target/linux/ixp4xx/patches-2.6.24/402-ixp4xx_ehci_backport.patch b/target/linux/ixp4xx/patches-2.6.24/402-ixp4xx_ehci_backport.patch new file mode 100644 index 00000000000..baae7a6bd2a --- /dev/null +++ b/target/linux/ixp4xx/patches-2.6.24/402-ixp4xx_ehci_backport.patch @@ -0,0 +1,215 @@ +diff -Nur linux-2.6.24.2/drivers/usb/host/ehci.h linux-2.6.24.2-owrt/drivers/usb/host/ehci.h +--- linux-2.6.24.2/drivers/usb/host/ehci.h 2008-02-11 06:51:11.000000000 +0100 ++++ linux-2.6.24.2-owrt/drivers/usb/host/ehci.h 2008-04-22 12:58:42.000000000 +0200 +@@ -730,6 +730,11 @@ + #define writel_be(val, addr) out_be32((__force unsigned *)addr, val) + #endif + ++#if defined(CONFIG_ARM) && defined(CONFIG_ARCH_IXP4XX) ++#define readl_be(addr) __raw_readl((__force unsigned *)addr) ++#define writel_be(val, addr) __raw_writel(val, (__force unsigned *)addr) ++#endif ++ + static inline unsigned int ehci_readl(const struct ehci_hcd *ehci, + __u32 __iomem * regs) + { +diff -Nur linux-2.6.24.2/drivers/usb/host/ehci-hcd.c linux-2.6.24.2-owrt/drivers/usb/host/ehci-hcd.c +--- linux-2.6.24.2/drivers/usb/host/ehci-hcd.c 2008-02-11 06:51:11.000000000 +0100 ++++ linux-2.6.24.2-owrt/drivers/usb/host/ehci-hcd.c 2008-04-22 12:58:42.000000000 +0200 +@@ -964,6 +964,11 @@ + #define PLATFORM_DRIVER ehci_ppc_soc_driver + #endif + ++#ifdef CONFIG_ARCH_IXP4XX ++#include "ehci-ixp4xx.c" ++#define PLATFORM_DRIVER ixp4xx_ehci_driver ++#endif ++ + #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \ + !defined(PS3_SYSTEM_BUS_DRIVER) + #error "missing bus glue for ehci-hcd" +diff -Nur linux-2.6.24.2/drivers/usb/host/ehci-ixp4xx.c linux-2.6.24.2-owrt/drivers/usb/host/ehci-ixp4xx.c +--- linux-2.6.24.2/drivers/usb/host/ehci-ixp4xx.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.24.2-owrt/drivers/usb/host/ehci-ixp4xx.c 2008-04-22 12:58:42.000000000 +0200 +@@ -0,0 +1,152 @@ ++/* ++ * IXP4XX EHCI Host Controller Driver ++ * ++ * Author: Vladimir Barinov ++ * ++ * Based on "ehci-fsl.c" by Randy Vinson ++ * ++ * 2007 (c) MontaVista Software, Inc. This file is licensed under ++ * the terms of the GNU General Public License version 2. This program ++ * is licensed "as is" without any warranty of any kind, whether express ++ * or implied. ++ */ ++ ++#include ++ ++static int ixp4xx_ehci_init(struct usb_hcd *hcd) ++{ ++ struct ehci_hcd *ehci = hcd_to_ehci(hcd); ++ int retval = 0; ++ ++ ehci->big_endian_desc = 1; ++ ehci->big_endian_mmio = 1; ++ ++ ehci->caps = hcd->regs + 0x100; ++ ehci->regs = hcd->regs + 0x100 ++ + HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase)); ++ ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); ++ ++ ehci->is_tdi_rh_tt = 1; ++ ehci_reset(ehci); ++ ++ retval = ehci_init(hcd); ++ if (retval) ++ return retval; ++ ++ ehci_port_power(ehci, 0); ++ ++ return retval; ++} ++ ++static const struct hc_driver ixp4xx_ehci_hc_driver = { ++ .description = hcd_name, ++ .product_desc = "IXP4XX EHCI Host Controller", ++ .hcd_priv_size = sizeof(struct ehci_hcd), ++ .irq = ehci_irq, ++ .flags = HCD_MEMORY | HCD_USB2, ++ .reset = ixp4xx_ehci_init, ++ .start = ehci_run, ++ .stop = ehci_stop, ++ .shutdown = ehci_shutdown, ++ .urb_enqueue = ehci_urb_enqueue, ++ .urb_dequeue = ehci_urb_dequeue, ++ .endpoint_disable = ehci_endpoint_disable, ++ .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 ++}; ++ ++static int ixp4xx_ehci_probe(struct platform_device *pdev) ++{ ++ struct usb_hcd *hcd; ++ const struct hc_driver *driver = &ixp4xx_ehci_hc_driver; ++ struct resource *res; ++ int irq; ++ int retval; ++ ++ if (usb_disabled()) ++ return -ENODEV; ++ ++ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); ++ if (!res) { ++ dev_err(&pdev->dev, ++ "Found HC with no IRQ. Check %s setup!\n", ++ pdev->dev.bus_id); ++ return -ENODEV; ++ } ++ irq = res->start; ++ ++ hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id); ++ if (!hcd) { ++ retval = -ENOMEM; ++ goto fail_create_hcd; ++ } ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!res) { ++ dev_err(&pdev->dev, ++ "Found HC with no register addr. Check %s setup!\n", ++ pdev->dev.bus_id); ++ retval = -ENODEV; ++ goto fail_request_resource; ++ } ++ hcd->rsrc_start = res->start; ++ hcd->rsrc_len = res->end - res->start + 1; ++ ++ if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, ++ driver->description)) { ++ dev_dbg(&pdev->dev, "controller already in use\n"); ++ retval = -EBUSY; ++ goto fail_request_resource; ++ } ++ ++ hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len); ++ if (hcd->regs == NULL) { ++ dev_dbg(&pdev->dev, "error mapping memory\n"); ++ retval = -EFAULT; ++ goto fail_ioremap; ++ } ++ ++ retval = usb_add_hcd(hcd, irq, IRQF_SHARED); ++ if (retval) ++ goto fail_add_hcd; ++ ++ return retval; ++ ++fail_add_hcd: ++ iounmap(hcd->regs); ++fail_ioremap: ++ release_mem_region(hcd->rsrc_start, hcd->rsrc_len); ++fail_request_resource: ++ usb_put_hcd(hcd); ++fail_create_hcd: ++ dev_err(&pdev->dev, "init %s fail, %d\n", pdev->dev.bus_id, retval); ++ return retval; ++} ++ ++static int ixp4xx_ehci_remove(struct platform_device *pdev) ++{ ++ 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); ++ ++ return 0; ++} ++ ++MODULE_ALIAS("platform:ixp4xx-ehci"); ++ ++static struct platform_driver ixp4xx_ehci_driver = { ++ .probe = ixp4xx_ehci_probe, ++ .remove = ixp4xx_ehci_remove, ++ .driver = { ++ .name = "ixp4xx-ehci", ++// .bus = &platform_bus_type ++ }, ++}; +diff -Nur linux-2.6.24.2/drivers/usb/host/Kconfig linux-2.6.24.2-owrt/drivers/usb/host/Kconfig +--- linux-2.6.24.2/drivers/usb/host/Kconfig 2008-02-11 06:51:11.000000000 +0100 ++++ linux-2.6.24.2-owrt/drivers/usb/host/Kconfig 2008-04-22 12:58:42.000000000 +0200 +@@ -69,12 +69,12 @@ + + config USB_EHCI_BIG_ENDIAN_MMIO + bool +- depends on USB_EHCI_HCD && (PPC_CELLEB || PPC_PS3 || 440EPX) ++ depends on USB_EHCI_HCD && (PPC_CELLEB || PPC_PS3 || 440EPX || ARCH_IXP4XX) + default y + + config USB_EHCI_BIG_ENDIAN_DESC + bool +- depends on USB_EHCI_HCD && 440EPX ++ depends on USB_EHCI_HCD && (440EPX || ARCH_IXP4XX) + default y + + config USB_EHCI_FSL +diff -Nur linux-2.6.24.2/drivers/usb/Kconfig linux-2.6.24.2-owrt/drivers/usb/Kconfig +--- linux-2.6.24.2/drivers/usb/Kconfig 2008-02-11 06:51:11.000000000 +0100 ++++ linux-2.6.24.2-owrt/drivers/usb/Kconfig 2008-04-22 12:58:42.000000000 +0200 +@@ -49,6 +49,7 @@ + boolean + default y if PPC_83xx + default y if SOC_AU1200 ++ default y if ARCH_IXP4XX + default PCI + + # ARM SA1111 chips have a non-PCI based "OHCI-compatible" USB host interface.