mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-14 06:07:30 +02:00
9ae7818ff7
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9685 3c298f89-4303-0410-b956-a3cf2f4a3e73
73 lines
2.3 KiB
Diff
73 lines
2.3 KiB
Diff
--- a/drivers/usb/host/ohci-ssb.c 2007-11-05 07:56:56.000000000 -0800
|
|
+++ b/drivers/usb/host/ohci-ssb.c 2007-11-05 08:26:15.000000000 -0800
|
|
@@ -142,10 +142,59 @@
|
|
int err = -ENOMEM;
|
|
u32 tmp, flags = 0;
|
|
|
|
- if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV)
|
|
+ /*
|
|
+ * THE FOLLOWING COMMENTS PRESERVED FROM GPL SOURCE RELEASE
|
|
+ *
|
|
+ * The USB core requires a special bit to be set during core
|
|
+ * reset to enable host (OHCI) mode. Resetting the SB core in
|
|
+ * pcibios_enable_device() is a hack for compatibility with
|
|
+ * vanilla usb-ohci so that it does not have to know about
|
|
+ * SB. A driver that wants to use the USB core in device mode
|
|
+ * should know about SB and should reset the bit back to 0
|
|
+ * after calling pcibios_enable_device().
|
|
+ */
|
|
+
|
|
+ if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) {
|
|
flags |= SSB_OHCI_TMSLOW_HOSTMODE;
|
|
+ ssb_device_enable(dev, flags);
|
|
+ }
|
|
+
|
|
+ /*
|
|
+ * 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 SB reset sequence, the Host Control
|
|
+ * Register must be programmed to bring the USB core and various
|
|
+ * phy components out of reset.
|
|
+ */
|
|
+
|
|
+ else if (dev->id.coreid == SSB_DEV_USB20_HOST) {
|
|
+#warning FIX ME need test for core being up & exit
|
|
+ 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);
|
|
|
|
- ssb_device_enable(dev, flags);
|
|
|
|
hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev,
|
|
dev->dev->bus_id);
|
|
@@ -235,6 +284,7 @@
|
|
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);
|