intel/gma: Only enable bus mastering if we are going to use it
Also fix wrong 32-bit writes.
Change-Id: Ib038f0cd558223536da08ba2264774db11cd8357
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40727
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/common/block/graphics/graphics.c b/src/soc/intel/common/block/graphics/graphics.c
index 6b035bc..ba4bc85 100644
--- a/src/soc/intel/common/block/graphics/graphics.c
+++ b/src/soc/intel/common/block/graphics/graphics.c
@@ -45,10 +45,8 @@
if (CONFIG(RUN_FSP_GOP))
return;
- /* IGD needs to Bus Master */
- u32 reg32 = pci_read_config32(dev, PCI_COMMAND);
- reg32 |= PCI_COMMAND_MASTER;
- pci_write_config32(dev, PCI_COMMAND, reg32);
+ if (!CONFIG(NO_GFX_INIT))
+ pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
if (CONFIG(MAINBOARD_USE_LIBGFXINIT)) {
if (!acpi_is_wakeup_s3() && display_init_required()) {