GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

e7505/i82801dx: Use common code for early SMBus 

While it looks different, the early SMBus code for this southbridge is
still the same. In addition, this code was not checking the vendor ID
before. It is assumed that adding this check does not pose a problem.

Change-Id: I95ae4db399ce5592cefca82fa75f349220023b8c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42006
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Angel Pons 2020-06-01 23:11:18 +02:00
parent 7a2cb35262
commit 1659724375
2 changed files with 1 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/southbridge/intel/i82801dx/Kconfig
View File

@ -6,6 +6,7 @@ config SOUTHBRIDGE_INTEL_I82801DX
select IOAPIC
select HAVE_SMI_HANDLER
select SOUTHBRIDGE_INTEL_COMMON_SMBUS
select SOUTHBRIDGE_INTEL_COMMON_EARLY_SMBUS
select SOUTHBRIDGE_INTEL_COMMON_RTC
select SOUTHBRIDGE_INTEL_COMMON_RESET
select SOUTHBRIDGE_INTEL_COMMON_USB_DEBUG

21
src/southbridge/intel/i82801dx/early_smbus.c
View File

@ -1,7 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <device/pci_ops.h>
#include <device/pci_def.h>
#include <device/smbus_host.h>
#include "i82801dx.h"
@ -9,22 +7,3 @@ void i82801dx_early_init(void)
{
enable_smbus();
}
uintptr_t smbus_base(void)
{
return CONFIG_FIXED_SMBUS_IO_BASE;
}
int smbus_enable_iobar(uintptr_t base)
{
pci_devfn_t dev = PCI_DEV(0x0, 0x1f, 0x3);
/* set smbus iobase */
pci_write_config32(dev, 0x20, base | 1);
/* Set smbus enable */
pci_write_config8(dev, 0x40, 0x01);
/* Set smbus iospace enable */
pci_write_config16(dev, 0x4, 0x01);
return 0;
}