sb/intel/ibexpeak: Fix 16-bit read/write PCI_COMMAND register
Change-Id: I212ef304a03d068232f50a71c318e2b468336339
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40791
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/southbridge/intel/ibexpeak/pch.c b/src/southbridge/intel/ibexpeak/pch.c
index 29c3a76..5a15e3d 100644
--- a/src/southbridge/intel/ibexpeak/pch.c
+++ b/src/southbridge/intel/ibexpeak/pch.c
@@ -66,24 +66,22 @@
void pch_enable(struct device *dev)
{
- u32 reg32;
+ u16 reg16;
if (!dev->enabled) {
printk(BIOS_DEBUG, "%s: Disabling device\n", dev_path(dev));
/* Ensure memory, io, and bus master are all disabled */
- reg32 = pci_read_config32(dev, PCI_COMMAND);
- reg32 &= ~(PCI_COMMAND_MASTER |
+ reg16 = pci_read_config16(dev, PCI_COMMAND);
+ reg16 &= ~(PCI_COMMAND_MASTER |
PCI_COMMAND_MEMORY | PCI_COMMAND_IO);
- pci_write_config32(dev, PCI_COMMAND, reg32);
+ pci_write_config16(dev, PCI_COMMAND, reg16);
/* Disable this device if possible */
pch_disable_devfn(dev);
} else {
/* Enable SERR */
- reg32 = pci_read_config32(dev, PCI_COMMAND);
- reg32 |= PCI_COMMAND_SERR;
- pci_write_config32(dev, PCI_COMMAND, reg32);
+ pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_SERR);
}
}