soc/intel/braswell: Fix 16-bit read/write PCI_COMMAND register
Change-Id: Ie213b8c08e2d2b33a1dc1fda632163160d1cd70e
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40849
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/soc/intel/braswell/lpe.c b/src/soc/intel/braswell/lpe.c
index 9c4d2b1..363b57f 100644
--- a/src/soc/intel/braswell/lpe.c
+++ b/src/soc/intel/braswell/lpe.c
@@ -45,7 +45,7 @@
{
static const struct reg_script ops[] = {
/* Disable PCI interrupt, enable Memory and Bus Master */
- REG_PCI_OR32(PCI_COMMAND,
+ REG_PCI_OR16(PCI_COMMAND,
PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_INT_DISABLE),
/* Enable ACPI mode */
diff --git a/src/soc/intel/braswell/smihandler.c b/src/soc/intel/braswell/smihandler.c
index e96f452..188c14e 100644
--- a/src/soc/intel/braswell/smihandler.c
+++ b/src/soc/intel/braswell/smihandler.c
@@ -59,7 +59,7 @@
for (slot = 0; slot < 0x20; slot++) {
for (func = 0; func < 8; func++) {
- u32 reg32;
+ u16 reg16;
pci_devfn_t dev = PCI_DEV(bus, slot, func);
val = pci_read_config32(dev, PCI_VENDOR_ID);
@@ -69,9 +69,9 @@
continue;
/* Disable Bus Mastering for this one device */
- reg32 = pci_read_config32(dev, PCI_COMMAND);
- reg32 &= ~PCI_COMMAND_MASTER;
- pci_write_config32(dev, PCI_COMMAND, reg32);
+ reg16 = pci_read_config16(dev, PCI_COMMAND);
+ reg16 &= ~PCI_COMMAND_MASTER;
+ pci_write_config16(dev, PCI_COMMAND, reg16);
/* If this is a bridge, then follow it. */
hdr = pci_read_config8(dev, PCI_HEADER_TYPE);
diff --git a/src/soc/intel/braswell/southcluster.c b/src/soc/intel/braswell/southcluster.c
index 50ff608..9b5784c 100644
--- a/src/soc/intel/braswell/southcluster.c
+++ b/src/soc/intel/braswell/southcluster.c
@@ -440,9 +440,9 @@
*/
pci_write_config32(dev, PCI_BASE_ADDRESS_0, TEMP_BASE_ADDRESS);
pci_write_config32(dev, PCI_BASE_ADDRESS_1, 0);
- pci_write_config8(dev, PCI_COMMAND, PCI_COMMAND_MEMORY);
+ pci_write_config16(dev, PCI_COMMAND, PCI_COMMAND_MEMORY);
write32(gctl, read32(gctl) | 0x1);
- pci_write_config8(dev, PCI_COMMAND, 0);
+ pci_write_config16(dev, PCI_COMMAND, 0);
pci_write_config32(dev, PCI_BASE_ADDRESS_0, 0);
}
@@ -526,7 +526,7 @@
/* Common PCI device function disable. */
void southcluster_enable_dev(struct device *dev)
{
- uint32_t reg32;
+ uint16_t reg16;
printk(BIOS_SPEW, "%s/%s (%s)\n", __FILE__, __func__, dev_name(dev));
@@ -537,9 +537,9 @@
dev_path(dev), slot, func);
/* Ensure memory, io, and bus master are all disabled */
- reg32 = pci_read_config32(dev, PCI_COMMAND);
- reg32 &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO);
- pci_write_config32(dev, PCI_COMMAND, reg32);
+ reg16 = pci_read_config16(dev, PCI_COMMAND);
+ reg16 &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO);
+ pci_write_config16(dev, PCI_COMMAND, reg16);
/* Place device in D3Hot */
if (place_device_in_d3hot(dev) < 0) {
@@ -552,9 +552,7 @@
sc_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);
}
}