diff options
| author | Subrata Banik <subratabanik@google.com> | 2024-09-04 23:51:09 +0530 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2024-09-07 08:25:49 +0000 |
| commit | 9947d545774946f75a432e75ef09aa7805fbb0d4 (patch) | |
| tree | 3ab04cd9fb36f7284e9902a326c5bec31b870215 /src/soc/intel/alderlake | |
| parent | b14ec5fbab3a7e74853b24af103ba8e9409a7d66 (diff) | |
drivers/intel/fsp2_0: Add Kconfig option to control MBP HOB creation
This patch adds a new Kconfig option `FSP_PUBLISH_MBP_HOB` to
control the creation of the ME_BIOS_PAYLOAD_HOB (MBP HOB) by FSP.
Disabling this option can improve boot time on platforms that
do not utilize the MBP HOB, such as ChromeOS devices.
The option is disabled by default on ChromeOS and enabled
by default on other platforms.
On ADL-P based platforms, this option is forced to be enabled
as ADL-P FSP relies on MBP HOB for ChipsetInit version for
ChipsetInit sync.
Removed SoC specific implementation of `FSP_PUBLISH_MBP_HOB` config
from MTL and TGL config file.
TEST=Tested on ADL-P and ADL-N platforms. Verified that MBP HOB is
created when `FSP_PUBLISH_MBP_HOB` is enabled and not created when
it is disabled.
Also verified that the system boots successfully in both cases.
Change-Id: I21da00259c0b9bcca6f545291a6259e9cce8d900
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84217
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
Diffstat (limited to 'src/soc/intel/alderlake')
| -rw-r--r-- | src/soc/intel/alderlake/Kconfig | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig index f7c585a0bd..c1cc993efb 100644 --- a/src/soc/intel/alderlake/Kconfig +++ b/src/soc/intel/alderlake/Kconfig @@ -511,18 +511,13 @@ config INTEL_GMA_BCLM_OFFSET config INTEL_GMA_BCLM_WIDTH default 32 +# Note: It cannot be disabled for ADL-P based platforms because ADL-P FSP relies on +# MBP HOB for ChipsetInit version for ChipsetInit sync. As ChipsetInit sync doesn't +# occur if no MBP HOB, so it results S0ix issue. This limitation is addressed in the +# later platforms so creation of MBP HOB can be skipped for ADL-N based platforms. config FSP_PUBLISH_MBP_HOB bool - default n if CHROMEOS && (SOC_INTEL_ALDERLAKE_PCH_N) - default y - help - This is to control creation of ME_BIOS_PAYLOAD_HOB (MBP HOB) by FSP. - Disabling it for the platforms, which do not use MBP HOB, can improve the boot time. - - Note: It cannot be disabled for ADL-P based platforms because ADL-P FSP relies on - MBP HOB for ChipsetInit version for ChipsetInit sync. As ChipsetInit sync doesn't - occur if no MBP HOB, so it results S0ix issue. This limitation is addressed in the - later platforms so creation of MBP HOB can be skipped for ADL-N based platforms. + default y if !SOC_INTEL_ALDERLAKE_PCH_N config INCLUDE_HSPHY_IN_FMAP bool "Include PCIe 5.0 HSPHY firmware in flash" |