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

soc/intel/skylake: Do not set ACPI_FADT_LEGACY_DEVICES 

SKL/KBL PCH does not support legacy devices. This change removes the
setting of ACPI_FADT_LEGACY_DEVICES flag in FADT for SKL/KBL.

It helps Linux kernel to disable controllers required to support legacy 
devices only e.g. i8237 DMA controller.

BUG=b:72679357

Change-Id: Ie2a85a719997157f52b0eab7254689f5a56ba05b
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/23833
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.corp-partner.google.com>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Furquan Shaikh 2018-02-20 21:33:00 -08:00 committed by Patrick Georgi
parent 97ab880082
commit 95b4d0c25d
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/soc/intel/skylake/acpi.c
View File

@ -267,7 +267,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
fadt->day_alrm = 0xd; fadt->day_alrm = 0xd;
fadt->mon_alrm = 0x00; fadt->mon_alrm = 0x00;
fadt->century = 0x00; fadt->century = 0x00;
fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES; fadt->iapc_boot_arch = 0;
if (!IS_ENABLED(CONFIG_NO_FADT_8042)) if (!IS_ENABLED(CONFIG_NO_FADT_8042))
fadt->iapc_boot_arch |= ACPI_FADT_8042; fadt->iapc_boot_arch |= ACPI_FADT_8042;