brcm47xx: add new usb driver for bcma bus and replace ssb usb driver.

This new usb driver uses an extra device so the ehci and the ohci driver are not depending on ech other any more.

SVN-Revision: 29575

1 files changed, 357 insertions, 0 deletions

diff --git a/target/linux/brcm47xx/patches-3.0/0034-USB-OHCI-remove-old-SSB-OHCI-driver.patch b/target/linux/brcm47xx/patches-3.0/0034-USB-OHCI-remove-old-SSB-OHCI-driver.patch
new file mode 100644
index 0000000000..18c3e9f8e5
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.0/0034-USB-OHCI-remove-old-SSB-OHCI-driver.patch
@@ -0,0 +1,357 @@
+From 8483de69568d1da9c106683d35d2b79c729b56c2 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sat, 26 Nov 2011 21:36:50 +0100
+Subject: [PATCH 21/21] 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 <hauke@hauke-m.de>
+---
+ drivers/usb/host/Kconfig    |   13 --
+ drivers/usb/host/ohci-hcd.c |   19 ---
+ drivers/usb/host/ohci-ssb.c |  260 -------------------------------------------
+ 3 files changed, 0 insertions(+), 292 deletions(-)
+ delete mode 100644 drivers/usb/host/ohci-ssb.c
+
+--- a/drivers/usb/host/Kconfig
++++ b/drivers/usb/host/Kconfig
+@@ -351,19 +351,6 @@ config USB_OHCI_HCD_PCI
+ 	  Enables support for PCI-bus plug-in USB controller cards.
+ 	  If unsure, say Y.
+ 
+-config USB_OHCI_HCD_SSB
+-	bool "OHCI support for Broadcom SSB OHCI core"
+-	depends on USB_OHCI_HCD && (SSB = y || SSB = USB_OHCI_HCD) && EXPERIMENTAL
+-	default n
+-	---help---
+-	  Support for the Sonics Silicon Backplane (SSB) attached
+-	  Broadcom USB OHCI core.
+-
+-	  This device is present in some embedded devices with
+-	  Broadcom based SSB bus.
+-
+-	  If unsure, say N.
+-
+ config USB_OHCI_SH
+ 	bool "OHCI support for SuperH USB controller"
+ 	depends on USB_OHCI_HCD && SUPERH
+--- a/drivers/usb/host/ohci-hcd.c
++++ b/drivers/usb/host/ohci-hcd.c
+@@ -1079,11 +1079,6 @@ 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
+@@ -1128,7 +1123,6 @@ MODULE_LICENSE ("GPL");
+ 	!defined(PS3_SYSTEM_BUS_DRIVER) && \
+ 	!defined(SM501_OHCI_DRIVER) && \
+ 	!defined(TMIO_OHCI_DRIVER) && \
+-	!defined(SSB_OHCI_DRIVER) && \
+ 	!defined(PLATFORM_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)
+@@ -1234,10 +1222,6 @@ 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:
+@@ -1288,9 +1272,6 @@ static void __exit ohci_hcd_mod_exit(voi
+ #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
+--- 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 <mb@bu3sch.de>
+- *
+- * 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 <linux/ssb/ssb.h>
+-
+-
+-#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_DISABLED | 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,
+-};