From 470e1821c3fd37b92ab5200ad4d0d17c06efe0a6 Mon Sep 17 00:00:00 2001 From: Rudolf Marek Date: Sun, 10 Oct 2010 20:43:00 +0000 Subject: Same applies for SB600. Following patch enables UDMA on ALL IDE devices. The current code enables it only for primary master, which causes my DVD drive to fail under windows install and even after hard reset in linux (DMA seems lockup). The fix should not have any influence for Linux because the IDE driver will correctly reprogram this bit. Signed-off-by: Rudolf Marek Acked-by: Uwe Hermann git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5933 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/southbridge/amd/sb600/sb600_ide.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/src/southbridge/amd/sb600/sb600_ide.c b/src/southbridge/amd/sb600/sb600_ide.c index 363cd3f28c..e38e83fdd7 100644 --- a/src/southbridge/amd/sb600/sb600_ide.c +++ b/src/southbridge/amd/sb600/sb600_ide.c @@ -35,10 +35,9 @@ static void ide_init(struct device *dev) dword &= ~(1 << 16); pci_write_config32(dev, 0x70, dword); - /* Ultra DMA mode */ - /* enable UDMA */ + /* Enable UDMA on all devices, it will become UDMA0 (default PIO is PIO0) */ byte = pci_read_config8(dev, 0x54); - byte |= 1 << 0; + byte |= 0xf; pci_write_config8(dev, 0x54, byte); /* Enable I/O Access&& Bus Master */ -- cgit v1.2.3