path: root/chipset_enable.c
diff options
authorCarl-Daniel Hailfinger <>2010-05-22 07:27:16 +0000
committerCarl-Daniel Hailfinger <>2010-05-22 07:27:16 +0000
commit33d7b6aa89c83dc02464b1b6e7e816a14743be48 (patch)
treee767011009853ed59a2868403fde57c58438a2a1 /chipset_enable.c
parent4988420f7dea425e73cfdc9e9187cf5446e30b08 (diff)
Disable probing for one variant of MCP55 to enable Tyan S2915
Fix Tyan S2915 OEM board by commenting out MCP55 LPC bridge PCI ID 10de:0361 which is the secondary LPC bridge. The same effect could be achieved by refusing to run enable_flash_mcp55 if the device class is not ISA bridge [0601]. Thanks to Alessandro Polverini, Joel Robertson, Nicolas Aveline, Phil LoCascio and Nils-Helge Garli Hegvik for testing flashrom on hardware and Michael Karcher for analyzing the factory BIOS for clues. In the end, no board enable was needed and it was a pure chipset issue. Corresponding to flashrom svn r1007. Signed-off-by: Carl-Daniel Hailfinger <> Acked-by: Michael Karcher <>
Diffstat (limited to 'chipset_enable.c')
1 files changed, 9 insertions, 1 deletions
diff --git a/chipset_enable.c b/chipset_enable.c
index 69f1623..bad0596 100644
--- a/chipset_enable.c
+++ b/chipset_enable.c
@@ -1354,7 +1354,15 @@ const struct penable chipset_enables[] = {
{0x10de, 0x0262, NT, "NVIDIA", "MCP51", enable_flash_ck804},
{0x10de, 0x0263, NT, "NVIDIA", "MCP51", enable_flash_ck804},
{0x10de, 0x0360, OK, "NVIDIA", "MCP55", enable_flash_mcp55}, /* M57SLI*/
- {0x10de, 0x0361, OK, "NVIDIA", "MCP55", enable_flash_mcp55}, /* LPC */
+ /* 10de:0361 is present in Tyan S2915 OEM systems, but not connected to
+ * the flash chip. Instead, 10de:0364 is connected to the flash chip.
+ * Until we have PCI device class matching or some fallback mechanism,
+ * this is needed to get flashrom working on Tyan S2915 and maybe other
+ * dual-MCP55 boards.
+ */
+#if 0
+ {0x10de, 0x0361, NT, "NVIDIA", "MCP55", enable_flash_mcp55}, /* LPC */
{0x10de, 0x0362, OK, "NVIDIA", "MCP55", enable_flash_mcp55}, /* LPC */
{0x10de, 0x0363, OK, "NVIDIA", "MCP55", enable_flash_mcp55}, /* LPC */
{0x10de, 0x0364, OK, "NVIDIA", "MCP55", enable_flash_mcp55}, /* LPC */
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