First step to upgrade of brcm47xx to kernel version 2.6.25

SVN-Revision: 10939

1 files changed, 345 insertions, 0 deletions

diff --git a/target/linux/brcm47xx/patches-2.6.25/230-ohci-ssb.patch b/target/linux/brcm47xx/patches-2.6.25/230-ohci-ssb.patch
new file mode 100644
index 0000000000..5be1a66c58
--- /dev/null
+++ b/target/linux/brcm47xx/patches-2.6.25/230-ohci-ssb.patch
@@ -0,0 +1,345 @@
+From: Michael Buesch <mb@bu3sch.de>
+Date: Wed, 10 Oct 2007 06:47:17 +0000 (-0700)
+Subject: USB: ohci SSB bus glue
+X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Fralf%2Flinux.git;a=commitdiff_plain;h=c604e851486eabcbeb73e984279d436ce121fd5d
+
+USB: ohci SSB bus glue
+
+This adds SSB bus glue for the USB OHCI HCD.
+
+Signed-off-by: Michael Buesch <mb@bu3sch.de>
+Signed-off-by: John W. Linville <linville@tuxdriver.com>
+Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
+---
+
+Index: linux-2.6.23.16/drivers/usb/host/Kconfig
+===================================================================
+--- linux-2.6.23.16.orig/drivers/usb/host/Kconfig	2008-02-19 00:47:29.000000000 +0100
++++ linux-2.6.23.16/drivers/usb/host/Kconfig	2008-02-19 00:47:51.000000000 +0100
+@@ -154,6 +154,19 @@ 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 && 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_BIG_ENDIAN_DESC
+ 	bool
+ 	depends on USB_OHCI_HCD
+Index: linux-2.6.23.16/drivers/usb/host/ohci-hcd.c
+===================================================================
+--- linux-2.6.23.16.orig/drivers/usb/host/ohci-hcd.c	2008-02-19 00:47:29.000000000 +0100
++++ linux-2.6.23.16/drivers/usb/host/ohci-hcd.c	2008-02-19 00:47:51.000000000 +0100
+@@ -926,11 +926,17 @@ 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
++
+ #if	!defined(PCI_DRIVER) &&		\
+ 	!defined(PLATFORM_DRIVER) &&	\
+ 	!defined(OF_PLATFORM_DRIVER) &&	\
+ 	!defined(SA1111_DRIVER) &&	\
+-	!defined(PS3_SYSTEM_BUS_DRIVER)
++	!defined(PS3_SYSTEM_BUS_DRIVER) && \
++	!defined(SSB_OHCI_DRIVER)
+ #error "missing bus glue for ohci-hcd"
+ #endif
+ 
+@@ -975,10 +981,20 @@ 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
++
+ 	return retval;
+ 
+ 	/* Error path */
++#ifdef SSB_OHCI_DRIVER
++ error_ssb:
++#endif
+ #ifdef PCI_DRIVER
++	pci_unregister_driver(&PCI_DRIVER);
+  error_pci:
+ #endif
+ #ifdef SA1111_DRIVER
+@@ -1003,6 +1019,9 @@ module_init(ohci_hcd_mod_init);
+ 
+ static void __exit ohci_hcd_mod_exit(void)
+ {
++#ifdef SSB_OHCI_DRIVER
++	ssb_driver_unregister(&SSB_OHCI_DRIVER);
++#endif
+ #ifdef PCI_DRIVER
+ 	pci_unregister_driver(&PCI_DRIVER);
+ #endif
+Index: linux-2.6.23.16/drivers/usb/host/ohci-ssb.c
+===================================================================
+--- /dev/null	1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.23.16/drivers/usb/host/ohci-ssb.c	2008-02-19 00:47:51.000000000 +0100
+@@ -0,0 +1,247 @@
++/*
++ * 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;
++}
++
++#ifdef CONFIG_PM
++static int ssb_ohci_hcd_suspend(struct usb_hcd *hcd, pm_message_t message)
++{
++	struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
++	struct ohci_hcd *ohci = &ohcidev->ohci;
++	unsigned long flags;
++
++	spin_lock_irqsave(&ohci->lock, flags);
++
++	ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
++	ohci_readl(ohci, &ohci->regs->intrdisable); /* commit write */
++
++	/* make sure snapshot being resumed re-enumerates everything */
++	if (message.event == PM_EVENT_PRETHAW)
++		ohci_usb_reset(ohci);
++
++	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
++
++	spin_unlock_irqrestore(&ohci->lock, flags);
++	return 0;
++}
++
++static int ssb_ohci_hcd_resume(struct usb_hcd *hcd)
++{
++	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
++	usb_hcd_resume_root_hub(hcd);
++	return 0;
++}
++#endif /* CONFIG_PM */
++
++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,
++
++#ifdef CONFIG_PM
++	.suspend		= ssb_ohci_hcd_suspend,
++	.resume			= ssb_ohci_hcd_resume,
++#endif
++
++	.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,
++	.hub_irq_enable		= ohci_rhsc_enable,
++	.bus_suspend		= ohci_bus_suspend,
++	.bus_resume		= ohci_bus_resume,
++
++	.start_port_reset	= ohci_start_port_reset,
++};
++
++static void ssb_ohci_detach(struct ssb_device *dev)
++{
++	struct usb_hcd *hcd = ssb_get_drvdata(dev);
++
++	usb_remove_hcd(hcd);
++	iounmap(hcd->regs);
++	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 (dev->id.coreid == SSB_DEV_USB11_HOSTDEV)
++		flags |= SSB_OHCI_TMSLOW_HOSTMODE;
++
++	ssb_device_enable(dev, flags);
++
++	hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev,
++			dev->dev->bus_id);
++	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);
++
++	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_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,
++};