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authorFelix Held <felix-coreboot@felixheld.de>2020-11-06 00:26:03 +0100
committerPatrick Georgi <pgeorgi@google.com>2020-11-09 07:44:13 +0000
commitbefec1e92ef3dca5e7e7cf8e5c8c465e22f68ea2 (patch)
tree5cd5870755d12a8700a5f5475dc75889f9df3d56 /src/soc/amd/common/block
parent4a08736242d04fab5b6db09a6118cd992e038f9e (diff)
soc/amd/common: add Kconfig help text to pre-family-17h-only blocks
The cpu/car code only applies to pre-family-17h CPUs that still use cache as RAM (CAR) and the PI code only applies to the pre-FSP vendor code blob binaryPI interface. Change-Id: I5a13d7e202bb745255fabb46110850c36b07de7a Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47274 Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/amd/common/block')
-rw-r--r--src/soc/amd/common/block/cpu/Kconfig3
-rw-r--r--src/soc/amd/common/block/pi/Kconfig3
2 files changed, 5 insertions, 1 deletions
diff --git a/src/soc/amd/common/block/cpu/Kconfig b/src/soc/amd/common/block/cpu/Kconfig
index 5941599df0..f6756e18f8 100644
--- a/src/soc/amd/common/block/cpu/Kconfig
+++ b/src/soc/amd/common/block/cpu/Kconfig
@@ -8,3 +8,6 @@ config SOC_AMD_COMMON_BLOCK_CAR
it may not be appropriate for a romstage implementation without
additional consideration. If this option is not used, the SOC must
implement these functions separately.
+ This is only used for AMD CPU before family 17h. From family 17h on
+ the RAM is already initialized by the PSP before the x86 cores are
+ released from reset.
diff --git a/src/soc/amd/common/block/pi/Kconfig b/src/soc/amd/common/block/pi/Kconfig
index f0917bb767..cf8c79ae50 100644
--- a/src/soc/amd/common/block/pi/Kconfig
+++ b/src/soc/amd/common/block/pi/Kconfig
@@ -3,7 +3,8 @@ config SOC_AMD_COMMON_BLOCK_PI
select HAVE_DEBUG_RAM_SETUP
default n
help
- This option builds functions that interface AMD's AGESA.
+ This option builds functions that interface AMD's AGESA reference
+ code packaged in the binaryPI form.
if SOC_AMD_COMMON_BLOCK_PI