From: Hauke Mehrtens Date: Thu, 15 Mar 2012 22:49:59 +0000 (+0100) Subject: USB: OHCI: remove old SSB OHCI driver X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=259b83a387dfb275988e72e25e3dd9e62d4916ac;p=openwrt%2Fstaging%2Fblogic.git USB: OHCI: remove old SSB OHCI driver This is now replaced by the new ssb USB driver, which also supports devices with an EHCI controller. Signed-off-by: Hauke Mehrtens Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 2fc5637c4c1f..00b6fc81c80e 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -373,10 +373,15 @@ config USB_OHCI_HCD_PCI If unsure, say Y. config USB_OHCI_HCD_SSB - bool "OHCI support for Broadcom SSB OHCI core" + bool "OHCI support for Broadcom SSB OHCI core (DEPRECATED)" depends on USB_OHCI_HCD && (SSB = y || SSB = USB_OHCI_HCD) && EXPERIMENTAL + select USB_HCD_SSB + select USB_OHCI_HCD_PLATFORM default n ---help--- + This option is deprecated now and the driver was removed, use + USB_HCD_SSB and USB_OHCI_HCD_PLATFORM instead. + Support for the Sonics Silicon Backplane (SSB) attached Broadcom USB OHCI core. diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 235171f29460..e0adf5c0cf55 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -1080,11 +1080,6 @@ MODULE_LICENSE ("GPL"); #define PS3_SYSTEM_BUS_DRIVER ps3_ohci_driver #endif -#ifdef CONFIG_USB_OHCI_HCD_SSB -#include "ohci-ssb.c" -#define SSB_OHCI_DRIVER ssb_ohci_driver -#endif - #ifdef CONFIG_MFD_SM501 #include "ohci-sm501.c" #define SM501_OHCI_DRIVER ohci_hcd_sm501_driver @@ -1128,8 +1123,7 @@ MODULE_LICENSE ("GPL"); !defined(SA1111_DRIVER) && \ !defined(PS3_SYSTEM_BUS_DRIVER) && \ !defined(SM501_OHCI_DRIVER) && \ - !defined(TMIO_OHCI_DRIVER) && \ - !defined(SSB_OHCI_DRIVER) + !defined(TMIO_OHCI_DRIVER) #error "missing bus glue for ohci-hcd" #endif @@ -1195,12 +1189,6 @@ static int __init ohci_hcd_mod_init(void) goto error_pci; #endif -#ifdef SSB_OHCI_DRIVER - retval = ssb_driver_register(&SSB_OHCI_DRIVER); - if (retval) - goto error_ssb; -#endif - #ifdef SM501_OHCI_DRIVER retval = platform_driver_register(&SM501_OHCI_DRIVER); if (retval < 0) @@ -1224,10 +1212,6 @@ static int __init ohci_hcd_mod_init(void) platform_driver_unregister(&SM501_OHCI_DRIVER); error_sm501: #endif -#ifdef SSB_OHCI_DRIVER - ssb_driver_unregister(&SSB_OHCI_DRIVER); - error_ssb: -#endif #ifdef PCI_DRIVER pci_unregister_driver(&PCI_DRIVER); error_pci: @@ -1275,9 +1259,6 @@ static void __exit ohci_hcd_mod_exit(void) #ifdef SM501_OHCI_DRIVER platform_driver_unregister(&SM501_OHCI_DRIVER); #endif -#ifdef SSB_OHCI_DRIVER - ssb_driver_unregister(&SSB_OHCI_DRIVER); -#endif #ifdef PCI_DRIVER pci_unregister_driver(&PCI_DRIVER); #endif diff --git a/drivers/usb/host/ohci-ssb.c b/drivers/usb/host/ohci-ssb.c deleted file mode 100644 index 5ba18595d6f7..000000000000 --- a/drivers/usb/host/ohci-ssb.c +++ /dev/null @@ -1,260 +0,0 @@ -/* - * Sonics Silicon Backplane - * Broadcom USB-core OHCI driver - * - * Copyright 2007 Michael Buesch - * - * Derived from the OHCI-PCI driver - * Copyright 1999 Roman Weissgaerber - * Copyright 2000-2002 David Brownell - * Copyright 1999 Linus Torvalds - * Copyright 1999 Gregory P. Smith - * - * Derived from the USBcore related parts of Broadcom-SB - * Copyright 2005 Broadcom Corporation - * - * Licensed under the GNU/GPL. See COPYING for details. - */ -#include - - -#define SSB_OHCI_TMSLOW_HOSTMODE (1 << 29) - -struct ssb_ohci_device { - struct ohci_hcd ohci; /* _must_ be at the beginning. */ - - u32 enable_flags; -}; - -static inline -struct ssb_ohci_device *hcd_to_ssb_ohci(struct usb_hcd *hcd) -{ - return (struct ssb_ohci_device *)(hcd->hcd_priv); -} - - -static int ssb_ohci_reset(struct usb_hcd *hcd) -{ - struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd); - struct ohci_hcd *ohci = &ohcidev->ohci; - int err; - - ohci_hcd_init(ohci); - err = ohci_init(ohci); - - return err; -} - -static int ssb_ohci_start(struct usb_hcd *hcd) -{ - struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd); - struct ohci_hcd *ohci = &ohcidev->ohci; - int err; - - err = ohci_run(ohci); - if (err < 0) { - ohci_err(ohci, "can't start\n"); - ohci_stop(hcd); - } - - return err; -} - -static const struct hc_driver ssb_ohci_hc_driver = { - .description = "ssb-usb-ohci", - .product_desc = "SSB OHCI Controller", - .hcd_priv_size = sizeof(struct ssb_ohci_device), - - .irq = ohci_irq, - .flags = HCD_MEMORY | HCD_USB11, - - .reset = ssb_ohci_reset, - .start = ssb_ohci_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - - .get_frame_number = ohci_get_frame, - - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - - .start_port_reset = ohci_start_port_reset, -}; - -static void ssb_ohci_detach(struct ssb_device *dev) -{ - struct usb_hcd *hcd = ssb_get_drvdata(dev); - - if (hcd->driver->shutdown) - hcd->driver->shutdown(hcd); - usb_remove_hcd(hcd); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - usb_put_hcd(hcd); - ssb_device_disable(dev, 0); -} - -static int ssb_ohci_attach(struct ssb_device *dev) -{ - struct ssb_ohci_device *ohcidev; - struct usb_hcd *hcd; - int err = -ENOMEM; - u32 tmp, flags = 0; - - if (dma_set_mask(dev->dma_dev, DMA_BIT_MASK(32)) || - dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32))) - return -EOPNOTSUPP; - - if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) { - /* Put the device into host-mode. */ - flags |= SSB_OHCI_TMSLOW_HOSTMODE; - ssb_device_enable(dev, flags); - } else if (dev->id.coreid == SSB_DEV_USB20_HOST) { - /* - * USB 2.0 special considerations: - * - * In addition to the standard SSB reset sequence, the Host - * Control Register must be programmed to bring the USB core - * and various phy components out of reset. - */ - ssb_device_enable(dev, 0); - ssb_write32(dev, 0x200, 0x7ff); - - /* Change Flush control reg */ - tmp = ssb_read32(dev, 0x400); - tmp &= ~8; - ssb_write32(dev, 0x400, tmp); - tmp = ssb_read32(dev, 0x400); - - /* Change Shim control reg */ - tmp = ssb_read32(dev, 0x304); - tmp &= ~0x100; - ssb_write32(dev, 0x304, tmp); - tmp = ssb_read32(dev, 0x304); - - udelay(1); - - /* Work around for 5354 failures */ - if (dev->id.revision == 2 && dev->bus->chip_id == 0x5354) { - /* Change syn01 reg */ - tmp = 0x00fe00fe; - ssb_write32(dev, 0x894, tmp); - - /* Change syn03 reg */ - tmp = ssb_read32(dev, 0x89c); - tmp |= 0x1; - ssb_write32(dev, 0x89c, tmp); - } - } else - ssb_device_enable(dev, 0); - - hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev, - dev_name(dev->dev)); - if (!hcd) - goto err_dev_disable; - ohcidev = hcd_to_ssb_ohci(hcd); - ohcidev->enable_flags = flags; - - tmp = ssb_read32(dev, SSB_ADMATCH0); - hcd->rsrc_start = ssb_admatch_base(tmp); - hcd->rsrc_len = ssb_admatch_size(tmp); - hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) - goto err_put_hcd; - err = usb_add_hcd(hcd, dev->irq, IRQF_SHARED); - if (err) - goto err_iounmap; - - ssb_set_drvdata(dev, hcd); - - return err; - -err_iounmap: - iounmap(hcd->regs); -err_put_hcd: - usb_put_hcd(hcd); -err_dev_disable: - ssb_device_disable(dev, flags); - return err; -} - -static int ssb_ohci_probe(struct ssb_device *dev, - const struct ssb_device_id *id) -{ - int err; - u16 chipid_top; - - /* USBcores are only connected on embedded devices. */ - chipid_top = (dev->bus->chip_id & 0xFF00); - if (chipid_top != 0x4700 && chipid_top != 0x5300) - return -ENODEV; - - /* TODO: Probably need checks here; is the core connected? */ - - if (usb_disabled()) - return -ENODEV; - - /* We currently always attach SSB_DEV_USB11_HOSTDEV - * as HOST OHCI. If we want to attach it as Client device, - * we must branch here and call into the (yet to - * be written) Client mode driver. Same for remove(). */ - - err = ssb_ohci_attach(dev); - - return err; -} - -static void ssb_ohci_remove(struct ssb_device *dev) -{ - ssb_ohci_detach(dev); -} - -#ifdef CONFIG_PM - -static int ssb_ohci_suspend(struct ssb_device *dev, pm_message_t state) -{ - ssb_device_disable(dev, 0); - - return 0; -} - -static int ssb_ohci_resume(struct ssb_device *dev) -{ - struct usb_hcd *hcd = ssb_get_drvdata(dev); - struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd); - - ssb_device_enable(dev, ohcidev->enable_flags); - - ohci_finish_controller_resume(hcd); - return 0; -} - -#else /* !CONFIG_PM */ -#define ssb_ohci_suspend NULL -#define ssb_ohci_resume NULL -#endif /* CONFIG_PM */ - -static const struct ssb_device_id ssb_ohci_table[] = { - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOSTDEV, SSB_ANY_REV), - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOST, SSB_ANY_REV), - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB20_HOST, SSB_ANY_REV), - SSB_DEVTABLE_END -}; -MODULE_DEVICE_TABLE(ssb, ssb_ohci_table); - -static struct ssb_driver ssb_ohci_driver = { - .name = KBUILD_MODNAME, - .id_table = ssb_ohci_table, - .probe = ssb_ohci_probe, - .remove = ssb_ohci_remove, - .suspend = ssb_ohci_suspend, - .resume = ssb_ohci_resume, -};