Vladimir Serbinenko (phcoder@gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/10237
-gerrit
commit 2d95d04614ff19960398c41ad5d90366d2a8bc6c Author: Vladimir Serbinenko phcoder@gmail.com Date: Mon May 18 13:13:48 2015 +0200
gma/edid: Fix gma register access.
0x20 was incorrectly represented as 4 * 5 while in fact it's 4 * 8
Change-Id: I6053a3baa6de0da9f1d648009353bc1fe542f81f Signed-off-by: Vladimir Serbinenko phcoder@gmail.com --- src/drivers/intel/gma/edid.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/drivers/intel/gma/edid.c b/src/drivers/intel/gma/edid.c index 36d8813..e70156e 100644 --- a/src/drivers/intel/gma/edid.c +++ b/src/drivers/intel/gma/edid.c @@ -49,11 +49,11 @@ void intel_gmbus_read_edid(u8 *mmio, u8 bus, u8 slave, u8 *edid, u32 edid_size) write32(mmio + 4 * 0, bus); wait_rdy(mmio); /* Ensure index bits are disabled. */ - write32(mmio + 4 * 5, 0); + write32(mmio + 4 * 8, 0); write32(mmio + 4 * 1, 0x46000000 | (slave << 1)); wait_rdy(mmio); /* Ensure index bits are disabled. */ - write32(mmio + 4 * 5, 0); + write32(mmio + 4 * 8, 0); write32(mmio + 4 * 1, 0x4a000001 | (slave << 1) | (edid_size << 16)); for (i = 0; i < edid_size / 4; i++) {