Patrick Georgi ([email protected]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/345
-gerrit commit 3c5985bcc27c9c5349451571cbf7dd20f8a354d4 Author: Patrick Georgi <[email protected]> Date: Fri Oct 28 09:01:54 2011 +0200 sb600: Implement EHCI workaround Linux implements it itself, but older Linuxes and other systems might not. Without this, the host controller might not respond to drivers. Change-Id: I4ff0e3683c02e7aa00d188428847c64c4c5d589d Signed-off-by: Patrick Georgi <[email protected]> --- src/southbridge/amd/sb600/usb.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/src/southbridge/amd/sb600/usb.c b/src/southbridge/amd/sb600/usb.c index 7539f08..7ff8f5c 100644 --- a/src/southbridge/amd/sb600/usb.c +++ b/src/southbridge/amd/sb600/usb.c @@ -119,6 +119,11 @@ static void usb_init2(struct device *dev) dword &= ~(1 << 28); pci_write_config32(dev, 0x50, dword); + /* EHCI Erratum (adapted from Linux) */ + dword = pci_read_config32(dev, 0x53); + dword |= (1 << 3); + pci_write_config32(dev, 0x53, dword); + /* RPR5.14 Disable USB PHY PLL Reset signal to come from ACPI */ byte = pci_read_config8(dev, 0x54); byte &= ~(1 << 0); -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
