brcm47xx: add kernel 2.6.35 preliminary support

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21707 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 60 insertions, 0 deletions

diff --git a/target/linux/brcm47xx/patches-2.6.35/250-ohci-ssb-usb2.patch b/target/linux/brcm47xx/patches-2.6.35/250-ohci-ssb-usb2.patch
new file mode 100644
index 0000000000..25b27e47e8
--- /dev/null
+++ b/target/linux/brcm47xx/patches-2.6.35/250-ohci-ssb-usb2.patch
@@ -0,0 +1,60 @@
+---
+ drivers/usb/host/ohci-ssb.c |   39 ++++++++++++++++++++++++++++++++++++---
+ 1 file changed, 36 insertions(+), 3 deletions(-)
+
+--- a/drivers/usb/host/ohci-ssb.c
++++ b/drivers/usb/host/ohci-ssb.c
+@@ -106,10 +106,42 @@ static int ssb_ohci_attach(struct ssb_de
+ 	int err = -ENOMEM;
+ 	u32 tmp, flags = 0;
+ 
+-	if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV)
++	if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) {
++		/* Put the device into host-mode. */
+ 		flags |= SSB_OHCI_TMSLOW_HOSTMODE;
+-
+-	ssb_device_enable(dev, flags);
++		ssb_device_enable(dev, flags);
++	} else if (dev->id.coreid == SSB_DEV_USB20_HOST) {
++		/*
++		 * USB 2.0 special considerations:
++		 *
++		 * 1. Since the core supports both OHCI and EHCI functions, it must
++		 *    only be reset once.
++		 *
++		 * 2. 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);
++		udelay(1);
++		if (dev->id.revision == 1) { // bug in rev 1
++
++			/* Change Flush control reg */
++			tmp = ssb_read32(dev, 0x400);
++			tmp &= ~8;
++			ssb_write32(dev, 0x400, tmp);
++			tmp = ssb_read32(dev, 0x400);
++			printk("USB20H fcr: 0x%0x\n", tmp);
++
++			/* Change Shim control reg */
++			tmp = ssb_read32(dev, 0x304);
++			tmp &= ~0x100;
++			ssb_write32(dev, 0x304, tmp);
++			tmp = ssb_read32(dev, 0x304);
++			printk("USB20H shim: 0x%0x\n", tmp);
++		}
++	} else
++		ssb_device_enable(dev, 0);
+ 
+ 	hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev,
+ 			dev_name(dev->dev));
+@@ -200,6 +232,7 @@ static int ssb_ohci_resume(struct ssb_de
+ 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);