mb/siemens/mc_apl{1,2,3,5,6}: Set PCI bus master bit only if allowed
Take Kconfig switch PCI_ALLOW_BUS_MASTER into account and set the PCI
bus master bit for legacy devices only if it is allowed.
Change-Id: I7798a767d528419bb093f301140ab68cc8b9c5ae
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56442
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl3/mainboard.c b/src/mainboard/siemens/mc_apl1/variants/mc_apl3/mainboard.c
index 842f377..4f43782 100644
--- a/src/mainboard/siemens/mc_apl1/variants/mc_apl3/mainboard.c
+++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl3/mainboard.c
@@ -36,10 +36,11 @@
*/
pcr_or32(PID_LPC, PCR_LPC_PRC, (PCR_LPC_CCE_EN | PCR_LPC_PCE_EN));
- /* Set Master Enable for on-board PCI device. */
+ /* Set Master Enable for on-board PCI device if allowed. */
dev = dev_find_device(PCI_VENDOR_ID_SIEMENS, 0x403e, 0);
if (dev) {
- pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
+ if (CONFIG(PCI_ALLOW_BUS_MASTER))
+ pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
/* Disable clock outputs 0 and 2-4 (CLKOUT) for upstream
* XIO2001 PCIe to PCI Bridge.