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soc/amd/cezanne: Enable CCP DMA

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Enable CCP DMA use in PSP verstage. This helps to reduce the boot time.

BUG=b:194990811
TEST=Build and boot to OS in Guybrush. Observed a 35 - 40 ms improvement
in the boot time.

Before CCP DMA:
 508:finished loading body                             898,286 (287,576)
Total Time: 2,146,182

After CCP DMA:
 508:finished loading body                             853,627 (240,061)
Total Time: 2,110,117

Cq-Depend: chrome-internal:4116566
Change-Id: I6e4f081622a2ec78763adf56548204efc1bccf39
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57564
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
This commit is contained in:
Karthikeyan Ramasubramanian 2021-09-17 16:33:35 -06:00 committed by Patrick Georgi
parent c2f6f35b3a
commit 1140b7cc72
1 changed files with 1 additions and 0 deletions
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1
src/soc/amd/cezanne/Kconfig
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@ -32,6 +32,7 @@ config SOC_SPECIFIC_OPTIONS
select PARALLEL_MP_AP_WORK select PARALLEL_MP_AP_WORK
select PLATFORM_USES_FSP2_0 select PLATFORM_USES_FSP2_0
select PROVIDES_ROM_SHARING select PROVIDES_ROM_SHARING
select PSP_VERSTAGE_CCP_DMA if VBOOT_STARTS_BEFORE_BOOTBLOCK
select RESET_VECTOR_IN_RAM select RESET_VECTOR_IN_RAM
select RTC select RTC
select SOC_AMD_COMMON select SOC_AMD_COMMON