60 lines
1.9 KiB
Diff
60 lines
1.9 KiB
Diff
---
|
|
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);
|