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intel/gma: Fix VBT generation 

The log shows the following error on systems that use the
native gfx init. The error isn't shown using the VBIOS blob:
GET_VBIOS: aa55 8086 0 3 0
VBIOS not found.

Don't shift the class-code, as it's already shifted by the PCI layer.

Tested-on: x220
Tested-by: Alexander Couzens <lynxis@fe80.eu>

Change-Id: I69018940dd51966b45774e0576a1380f90716dce
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/14188
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
This commit is contained in:
Patrick Rudolph 2016-03-30 17:59:09 +02:00 committed by Nico Huber
parent 7454bdf3e2
commit 808a9c223d
1 changed files with 3 additions and 3 deletions
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6
src/drivers/intel/gma/vbt.c
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@ -93,9 +93,9 @@ generate_fake_intel_oprom(const struct i915_gpu_controller_info *conf,
pcir->device = dev->device;
pcir->length = sizeof(*pcir);
pcir->revision = dev->class;
pcir->classcode[0] = dev->class >> 8;
pcir->classcode[1] = dev->class >> 16;
pcir->classcode[2] = dev->class >> 24;
pcir->classcode[0] = dev->class;
pcir->classcode[1] = dev->class >> 8;
pcir->classcode[2] = dev->class >> 16;
pcir->indicator = 0x80;
vbt_size = generate_vbt (conf, (void *)(PCI_VGA_RAM_IMAGE_START + 0x80), idstr);