diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-2.6.34/021-USB-Add-USB-2.0-to-ssb-ohci-driver.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-2.6.34/021-USB-Add-USB-2.0-to-ssb-ohci-driver.patch | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-2.6.34/021-USB-Add-USB-2.0-to-ssb-ohci-driver.patch b/target/linux/brcm47xx/patches-2.6.34/021-USB-Add-USB-2.0-to-ssb-ohci-driver.patch new file mode 100644 index 0000000000..91eadaade4 --- /dev/null +++ b/target/linux/brcm47xx/patches-2.6.34/021-USB-Add-USB-2.0-to-ssb-ohci-driver.patch @@ -0,0 +1,95 @@ +From cb33ffbdd8491c58b35958ec74c39b3a5c7fabe8 Mon Sep 17 00:00:00 2001 +From: Hauke Mehrtens <hauke@hauke-m.de> +Date: Sun, 18 Jul 2010 21:25:03 +0200 +Subject: [PATCH 1/2] USB: Add USB 2.0 to ssb ohci driver + +This adds USB 2.0 support to ssb ohci driver. +This work was done based on Braodcom source code in the OpenWRT project. + +Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> +--- + drivers/usb/host/ohci-ssb.c | 55 ++++++++++++++++++++++++++++++++++++++++-- + 1 files changed, 52 insertions(+), 3 deletions(-) + +--- a/drivers/usb/host/ohci-ssb.c ++++ b/drivers/usb/host/ohci-ssb.c +@@ -92,9 +92,12 @@ static const struct hc_driver ssb_ohci_h + static void ssb_ohci_detach(struct ssb_device *dev) + { + struct usb_hcd *hcd = ssb_get_drvdata(dev); ++ if (hcd->driver->shutdown) ++ hcd->driver->shutdown(hcd); + + usb_remove_hcd(hcd); + iounmap(hcd->regs); ++ release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + usb_put_hcd(hcd); + ssb_device_disable(dev, 0); + } +@@ -106,10 +109,55 @@ static int ssb_ohci_attach(struct ssb_de + int err = -ENOMEM; + u32 tmp, flags = 0; + +- if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) +- flags |= SSB_OHCI_TMSLOW_HOSTMODE; ++ if (dma_set_mask(dev->dma_dev, DMA_BIT_MASK(32)) || ++ dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32))) ++ return -EOPNOTSUPP; + +- ssb_device_enable(dev, flags); ++ if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) { ++ /* Put the device into host-mode. */ ++ flags |= SSB_OHCI_TMSLOW_HOSTMODE; ++ 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 ehci 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); ++ ++ /* Change Flush control reg */ ++ tmp = ssb_read32(dev, 0x400); ++ tmp &= ~8; ++ ssb_write32(dev, 0x400, tmp); ++ tmp = ssb_read32(dev, 0x400); ++ ++ /* Change Shim control reg */ ++ tmp = ssb_read32(dev, 0x304); ++ tmp &= ~0x100; ++ ssb_write32(dev, 0x304, tmp); ++ tmp = ssb_read32(dev, 0x304); ++ ++ udelay(1); ++ ++ /* Work around for 5354 failures */ ++ if ((dev->id.revision == 2) && (dev->bus->chip_id == 0x5354)) { ++ /* Change syn01 reg */ ++ tmp = 0x00fe00fe; ++ ssb_write32(dev, 0x894, tmp); ++ ++ /* Change syn03 reg */ ++ tmp = ssb_read32(dev, 0x89c); ++ tmp |= 0x1; ++ ssb_write32(dev, 0x89c, tmp); ++ } ++ } else ++ ssb_device_enable(dev, 0); + + hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev, + dev_name(dev->dev)); +@@ -200,6 +248,7 @@ 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); |