diff options
| -rw-r--r-- | src/mainboard/siemens/mc_apl1/variants/mc_apl3/mainboard.c | 10 |
1 files changed, 10 insertions, 0 deletions
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 bfcf38ef5f..f41fe732f3 100644 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl3/mainboard.c +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl3/mainboard.c @@ -15,6 +15,7 @@ #include <bootstate.h> #include <console/console.h> +#include <device/pci_def.h> #include <device/pci_ids.h> #include <device/pci_ops.h> #include <gpio.h> @@ -31,6 +32,7 @@ void variant_mainboard_final(void) { struct device *dev = NULL; + uint16_t cmd = 0; /* PIR6 register mapping for PCIe root ports * INTA#->PIRQD#, INTB#->PIRQA#, INTC#->PIRQB#, INTD#-> PIRQC# @@ -52,6 +54,14 @@ void variant_mainboard_final(void) * offset 0x341C bit [3:0]. */ pcr_or32(PID_LPC, PCR_LPC_PRC, (PCR_LPC_CCE_EN | PCR_LPC_PCE_EN)); + + /* Set Master Enable for on-board PCI device. */ + dev = dev_find_device(PCI_VENDOR_ID_SIEMENS, 0x403e, 0); + if (dev) { + cmd = pci_read_config16(dev, PCI_COMMAND); + cmd |= PCI_COMMAND_MASTER; + pci_write_config16(dev, PCI_COMMAND, cmd); + } } static void wait_for_legacy_dev(void *unused) |