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authorFurquan Shaikh <furquan@chromium.org>2018-02-20 21:33:00 -0800
committerPatrick Georgi <pgeorgi@google.com>2018-02-22 09:54:00 +0000
commit95b4d0c25d337546a26821f9c1c0d6b25d1a69ff (patch)
tree01fa0f8456bb90d01221a4072946e78a79f099a5 /src
parent97ab880082505b4aa0d4b2a058e850bd3376d9b8 (diff)
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>
Diffstat (limited to 'src')
-rw-r--r--src/soc/intel/skylake/acpi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/soc/intel/skylake/acpi.c b/src/soc/intel/skylake/acpi.c
index a0be5f5d1b..6e1a88657d 100644
--- a/src/soc/intel/skylake/acpi.c
+++ b/src/soc/intel/skylake/acpi.c
@@ -267,7 +267,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
fadt->day_alrm = 0xd;
fadt->mon_alrm = 0x00;
fadt->century = 0x00;
- fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES;
+ fadt->iapc_boot_arch = 0;
if (!IS_ENABLED(CONFIG_NO_FADT_8042))
fadt->iapc_boot_arch |= ACPI_FADT_8042;