Werner Zeh has uploaded this change for review. ( https://review.coreboot.org/20403
Change subject: mc_bdx1: Set bus master bit for on-board PCI devices
......................................................................
mc_bdx1: Set bus master bit for on-board PCI devices
There are up to two on-board PCI devices where bus master has to be
enabled in PCI config space. As there is no need for a complete PCI
driver for these devices just set the bus master bit in
mainboard_final().
Change-Id: Ic2896d5e7568a455737af26b14b2c398caae5f72
Signed-off-by: Werner Zeh <werner.zeh(a)siemens.com>
---
M src/mainboard/siemens/mc_bdx1/mainboard.c
1 file changed, 15 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/03/20403/1
diff --git a/src/mainboard/siemens/mc_bdx1/mainboard.c b/src/mainboard/siemens/mc_bdx1/mainboard.c
index fe35fe1..c6b8b76 100644
--- a/src/mainboard/siemens/mc_bdx1/mainboard.c
+++ b/src/mainboard/siemens/mc_bdx1/mainboard.c
@@ -20,6 +20,7 @@
#include <device/device.h>
#include <device/pci_def.h>
#include <device/pci_ops.h>
+#include <device/pci_ids.h>
#include <console/console.h>
#if CONFIG_VGA_ROM_RUN
#include <x86emu/x86emu.h>
@@ -125,6 +126,20 @@
write16((spi_base + SPI_REG_OPTYPE), SPI_OPTYPE);
write32((spi_base + SPI_REG_OPMENU_L), SPI_OPMENU_LOWER);
write32((spi_base + SPI_REG_OPMENU_H), SPI_OPMENU_UPPER);
+
+ /*Set Master Enable for on-board PCI devices.*/
+ dev = dev_find_device(PCI_VENDOR_ID_SIEMENS, 0x403e, 0);
+ if (dev) {
+ uint16_t cmd = pci_read_config16(dev, PCI_COMMAND);
+ cmd |= PCI_COMMAND_MASTER;
+ pci_write_config16(dev, PCI_COMMAND, cmd);
+ }
+ dev = dev_find_device(PCI_VENDOR_ID_SIEMENS, 0x403f, 0);
+ if (dev) {
+ uint16_t cmd = pci_read_config16(dev, PCI_COMMAND);
+ cmd |= PCI_COMMAND_MASTER;
+ pci_write_config16(dev, PCI_COMMAND, cmd);
+ }
}
/** \brief This function can decide if a given MAC address is valid or not.
--
To view, visit https://review.coreboot.org/20403
To unsubscribe, visit https://review.coreboot.org/settings
Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Ic2896d5e7568a455737af26b14b2c398caae5f72
Gerrit-Change-Number: 20403
Gerrit-PatchSet: 1
Gerrit-Owner: Werner Zeh <werner.zeh(a)siemens.com>