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sb/common/smihandler: Fix 16-bit read/write to PCI_COMMAND register 

Change-Id: Ib403f5a231f86bdc60b956e72a4ae631aa6a3899
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40742
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Elyes HAOUAS 2020-04-27 05:25:06 +02:00 committed by Patrick Georgi
parent d82faa8ea3
commit 804a34022c
1 changed files with 4 additions and 4 deletions
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8
src/southbridge/intel/common/smihandler.c
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@ -61,7 +61,7 @@ static void busmaster_disable_on_bus(int bus)
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);
@ -71,9 +71,9 @@ static void busmaster_disable_on_bus(int bus)
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);