Following patch enables UDMA on ALL IDE devices. The current code enables it only...

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

diff --git a/src/southbridge/amd/sb700/sb700_ide.c b/src/southbridge/amd/sb700/sb700_ide.c
index 08e625492b2eba958eca056edda1d0f6ae4f9014..88d634bebbd7153072880608e84e7fb28a10e6ee 100644 (file)
--- 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 */