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| author | Alexandros C. Couloumbis <alex@ozo.com> | 2010-04-15 20:50:50 +0000 |
|---|---|---|
| committer | Alexandros C. Couloumbis <alex@ozo.com> | 2010-04-15 20:50:50 +0000 |
| commit | 598e0656c5f35b4b39f61d72e7bd5ec5e713245a (patch) | |
| tree | 54b1e08c5612ad56cab638208555e259a3f6fabd /target/linux/brcm47xx/patches-2.6.34/250-ohci-ssb-usb2.patch | |
| parent | 28718f2d5f3d97b77d005ba6b89d2d5af58a34be (diff) | |
| download | upstream-598e0656c5f35b4b39f61d72e7bd5ec5e713245a.tar.gz upstream-598e0656c5f35b4b39f61d72e7bd5ec5e713245a.tar.bz2 upstream-598e0656c5f35b4b39f61d72e7bd5ec5e713245a.zip | |
brcm47xx: add preliminary 2.6.34 support
SVN-Revision: 20888
Diffstat (limited to 'target/linux/brcm47xx/patches-2.6.34/250-ohci-ssb-usb2.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-2.6.34/250-ohci-ssb-usb2.patch | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-2.6.34/250-ohci-ssb-usb2.patch b/target/linux/brcm47xx/patches-2.6.34/250-ohci-ssb-usb2.patch new file mode 100644 index 0000000000..25b27e47e8 --- /dev/null +++ b/target/linux/brcm47xx/patches-2.6.34/250-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); |