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, 0 insertions, 330 deletions

diff --git a/target/linux/brcm47xx/patches-3.0/022-USB-Add-ehci-ssb-driver.patch b/target/linux/brcm47xx/patches-3.0/022-USB-Add-ehci-ssb-driver.patch
deleted file mode 100644
index 33e23c2..0000000
--- a/target/linux/brcm47xx/patches-3.0/022-USB-Add-ehci-ssb-driver.patch
+++ /dev/null
@@ -1,330 +0,0 @@
---- a/drivers/usb/host/Kconfig
-+++ b/drivers/usb/host/Kconfig
-@@ -230,6 +230,19 @@ config USB_OXU210HP_HCD
- 	  To compile this driver as a module, choose M here: the
- 	  module will be called oxu210hp-hcd.
- 
-+config USB_EHCI_HCD_SSB
-+	bool "EHCI support for Broadcom SSB EHCI core"
-+	depends on USB_EHCI_HCD && (SSB = y || SSB = USB_EHCI_HCD) && EXPERIMENTAL
-+	default n
-+	---help---
-+	  Support for the Sonics Silicon Backplane (SSB) attached
-+	  Broadcom USB EHCI core.
-+
-+	  This device is present in some embedded devices with
-+	  Broadcom based SSB bus.
-+
-+	  If unsure, say N.
-+
- config USB_ISP116X_HCD
- 	tristate "ISP116X HCD support"
- 	depends on USB
---- a/drivers/usb/host/ehci-hcd.c
-+++ b/drivers/usb/host/ehci-hcd.c
-@@ -1312,9 +1312,14 @@ MODULE_LICENSE ("GPL");
- #define PLATFORM_DRIVER		ehci_grlib_driver
- #endif
- 
-+#ifdef CONFIG_USB_EHCI_HCD_SSB
-+#include "ehci-ssb.c"
-+#define SSB_EHCI_DRIVER		ssb_ehci_driver
-+#endif
-+
- #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
-     !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \
--    !defined(XILINX_OF_PLATFORM_DRIVER)
-+    !defined(XILINX_OF_PLATFORM_DRIVER) && !defined(SSB_EHCI_DRIVER)
- #error "missing bus glue for ehci-hcd"
- #endif
- 
-@@ -1374,10 +1379,20 @@ static int __init ehci_hcd_init(void)
- 	if (retval < 0)
- 		goto clean4;
- #endif
-+
-+#ifdef SSB_EHCI_DRIVER
-+	retval = ssb_driver_register(&SSB_EHCI_DRIVER);
-+	if (retval < 0)
-+		goto clean5;
-+#endif
- 	return retval;
- 
-+#ifdef SSB_EHCI_DRIVER
-+	/* ssb_driver_unregister(&SSB_EHCI_DRIVER); */
-+clean5:
-+#endif
- #ifdef XILINX_OF_PLATFORM_DRIVER
--	/* platform_driver_unregister(&XILINX_OF_PLATFORM_DRIVER); */
-+	platform_driver_unregister(&XILINX_OF_PLATFORM_DRIVER);
- clean4:
- #endif
- #ifdef OF_PLATFORM_DRIVER
-@@ -1408,6 +1423,9 @@ module_init(ehci_hcd_init);
- 
- static void __exit ehci_hcd_cleanup(void)
- {
-+#ifdef SSB_EHCI_DRIVER
-+	ssb_driver_unregister(&SSB_EHCI_DRIVER);
-+#endif
- #ifdef XILINX_OF_PLATFORM_DRIVER
- 	platform_driver_unregister(&XILINX_OF_PLATFORM_DRIVER);
- #endif
---- /dev/null
-+++ b/drivers/usb/host/ehci-ssb.c
-@@ -0,0 +1,255 @@
-+/*
-+ * Sonics Silicon Backplane
-+ * Broadcom USB-core EHCI driver (SSB bus glue)
-+ *
-+ * Copyright 2007 Steven Brown <sbrown@cortland.com>
-+ * Copyright 2010 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
-+ *
-+ * 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>
-+
-+
-+struct ssb_ehci_device {
-+	struct ehci_hcd ehci; /* _must_ be at the beginning. */
-+};
-+
-+static inline
-+struct ssb_ehci_device *hcd_to_ssb_ehci(struct usb_hcd *hcd)
-+{
-+	return (struct ssb_ehci_device *)(hcd->hcd_priv);
-+}
-+
-+static int ssb_ehci_reset(struct usb_hcd *hcd)
-+{
-+	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-+	int err;
-+
-+	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");
-+
-+	ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
-+
-+	err = ehci_halt(ehci);
-+
-+	if (err)
-+		return err;
-+
-+	err = ehci_init(hcd);
-+
-+	if (err)
-+		return err;
-+
-+	ehci_reset(ehci);
-+
-+	return err;
-+}
-+
-+static const struct hc_driver ssb_ehci_hc_driver = {
-+	.description		= "ssb-usb-ehci",
-+	.product_desc		= "SSB EHCI Controller",
-+	.hcd_priv_size		= sizeof(struct ssb_ehci_device),
-+
-+	.irq			= ehci_irq,
-+	.flags			= HCD_MEMORY | HCD_USB2,
-+
-+	.reset			= ssb_ehci_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,
-+
-+	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
-+};
-+
-+static void ssb_ehci_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_ehci_attach(struct ssb_device *dev)
-+{
-+	struct ssb_ehci_device *ehcidev;
-+	struct usb_hcd *hcd;
-+	int err = -ENOMEM;
-+	u32 tmp;
-+
-+	if (dma_set_mask(dev->dma_dev, DMA_BIT_MASK(32)) ||
-+	    dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32)))
-+		return -EOPNOTSUPP;
-+
-+	/*
-+	 * 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);
-+	}
-+
-+	hcd = usb_create_hcd(&ssb_ehci_hc_driver, dev->dev,
-+			     dev_name(dev->dev));
-+	if (!hcd)
-+		goto err_dev_disable;
-+
-+	ehcidev = hcd_to_ssb_ehci(hcd);
-+	tmp = ssb_read32(dev, SSB_ADMATCH0);
-+	hcd->rsrc_start = ssb_admatch_base(tmp) + 0x800; /* ehci core offset */
-+	hcd->rsrc_len = 0x100; /* ehci reg block size */
-+	/*
-+	 * 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, 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, 0);
-+	return err;
-+}
-+
-+static int ssb_ehci_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;
-+
-+	err = ssb_ehci_attach(dev);
-+
-+	return err;
-+}
-+
-+static void ssb_ehci_remove(struct ssb_device *dev)
-+{
-+	ssb_ehci_detach(dev);
-+}
-+
-+#ifdef CONFIG_PM
-+
-+static int ssb_ehci_suspend(struct ssb_device *dev, pm_message_t state)
-+{
-+	ssb_device_disable(dev, 0);
-+
-+	return 0;
-+}
-+
-+static int ssb_ehci_resume(struct ssb_device *dev)
-+{
-+	struct usb_hcd *hcd = ssb_get_drvdata(dev);
-+	struct ssb_ehci_device *ehcidev = hcd_to_ssb_ehci(hcd);
-+
-+	ssb_device_enable(dev, 0);
-+
-+	ehci_finish_controller_resume(hcd);
-+	return 0;
-+}
-+
-+#else /* !CONFIG_PM */
-+#define ssb_ehci_suspend	NULL
-+#define ssb_ehci_resume	NULL
-+#endif /* CONFIG_PM */
-+
-+static const struct ssb_device_id ssb_ehci_table[] = {
-+	SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB20_HOST, SSB_ANY_REV),
-+	SSB_DEVTABLE_END
-+};
-+MODULE_DEVICE_TABLE(ssb, ssb_ehci_table);
-+
-+static struct ssb_driver ssb_ehci_driver = {
-+	.name		= KBUILD_MODNAME,
-+	.id_table	= ssb_ehci_table,
-+	.probe		= ssb_ehci_probe,
-+	.remove		= ssb_ehci_remove,
-+	.suspend	= ssb_ehci_suspend,
-+	.resume		= ssb_ehci_resume,
-+};