diff options
| author | Patrick Rudolph <siro@das-labor.org> | 2017-01-21 10:43:52 +0100 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2017-02-04 23:01:55 +0100 |
| commit | bb1af99622e7e4a303f49618a4ecbb02606d1cba (patch) | |
| tree | 66e00851eb6fc1baddf8efa17a12e7e6c7c06aa7 | |
| parent | a5c2ac6256d0dae112b24c422d1270919acb6321 (diff) | |
nb/intel/gm45/igd: Hide IGD while disabling
Hide the IGD to make sure ramstage doesn't detect it.
Change-Id: If389016f3bb0c4c2fd0b826914997a87a9137201
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/18194
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
| -rw-r--r-- | src/northbridge/intel/gm45/igd.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/northbridge/intel/gm45/igd.c b/src/northbridge/intel/gm45/igd.c index 74572ca72a..1164339c8a 100644 --- a/src/northbridge/intel/gm45/igd.c +++ b/src/northbridge/intel/gm45/igd.c @@ -127,6 +127,11 @@ static void disable_igd(const sysinfo_t *const sysinfo) MCHBAR16(0x119e) = (MCHBAR16(0x119e) & ~(7 << 13)) | (4 << 13); MCHBAR16(0x119e) |= (1 << 12); } + + /* Hide IGD. */ + u32 deven = pci_read_config32(mch_dev, D0F0_DEVEN); + deven &= ~(3 << 3); + pci_write_config32(mch_dev, D0F0_DEVEN, deven); } void init_igd(const sysinfo_t *const sysinfo) |