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authorLijian Zhao <lijian.zhao@intel.com>2018-03-12 12:13:15 -0700
committerPatrick Georgi <pgeorgi@google.com>2018-03-14 11:18:22 +0000
commitf5205a3c81df7a06ddd109642d948092bd36d322 (patch)
tree80ea465015e7276671d4d1ca51cf367ef675dacd /src
parentec19354b9aee8c12a8e9728c33b6b47230359960 (diff)
downloadcoreboot-f5205a3c81df7a06ddd109642d948092bd36d322.tar.xz
soc/intel/cannonlake: Add SaGv value definition
SaGv(Sytem Agent Dynamic Frequency) have four settings, disabled, disabled but running at fixed lower frequency, disabled but running at fixed middle frquency, disabled but running at fixed high frequency and totally enabled. BUG=None. Change-Id: Ib5fb648179e7889aaa64d91e6cf7a7a7503f4225 Signed-off-by: Lijian Zhao <lijian.zhao@intel.com> Reviewed-on: https://review.coreboot.org/25116 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src')
-rw-r--r--src/soc/intel/cannonlake/chip.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/soc/intel/cannonlake/chip.h b/src/soc/intel/cannonlake/chip.h
index 5e70fae26f..90956c308a 100644
--- a/src/soc/intel/cannonlake/chip.h
+++ b/src/soc/intel/cannonlake/chip.h
@@ -106,7 +106,14 @@ struct soc_intel_cannonlake_config {
/* System Agent dynamic frequency support. Only effects ULX/ULT CPUs.
* When enabled memory will be training at two different frequencies.
* 0:Disabled, 1:FixedLow, 2:FixedMid, 3:FixedHigh, 4:Enabled */
- uint8_t SaGv;
+ enum {
+ SaGv_Disabled,
+ SaGv_FixedLow,
+ SaGv_FixedMid,
+ SaGv_FixedHigh,
+ SaGv_Enabled,
+ } SaGv;
+
/* Rank Margin Tool. 1:Enable, 0:Disable */
uint8_t RMT;