diff options
| author | Rudolf Marek <r.marek@assembler.cz> | 2010-10-10 19:54:15 +0000 |
|---|---|---|
| committer | Rudolf Marek <r.marek@assembler.cz> | 2010-10-10 19:54:15 +0000 |
| commit | 14cc9271780b8348f5007b6247290c15367fb45c (patch) | |
| tree | bcbfc282779e55d0319f26ae4eb90fb99946fb4e /src/southbridge | |
| parent | 2a5101aba49315b6c46aa3dc4c6c07633e453c06 (diff) | |
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 <r.marek@assembler.cz>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5931 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/southbridge')
| -rw-r--r-- | src/southbridge/amd/sb700/sb700_ide.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/src/southbridge/amd/sb700/sb700_ide.c b/src/southbridge/amd/sb700/sb700_ide.c index 08e625492b..88d634bebb 100644 --- a/src/southbridge/amd/sb700/sb700_ide.c +++ b/src/southbridge/amd/sb700/sb700_ide.c @@ -39,10 +39,9 @@ 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 */ |