diff options
| author | Subrata Banik <subratabanik@google.com> | 2022-02-10 14:35:37 +0530 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-02-18 20:22:58 +0000 |
| commit | 95986169f93efe8b99c5b7d4a0fff3b5541d1377 (patch) | |
| tree | c95ec35cae18cccce69336f03f747c3657ccc3d6 /src/soc/intel/alderlake | |
| parent | 90e318bba4fbed96c295e9e00a5ac73870cc1faf (diff) | |
soc/intel/alderlake: Skip FSP Notify APIs
Alder Lake SoC deselects Kconfigs as below:
- USE_FSP_NOTIFY_PHASE_READY_TO_BOOT
- USE_FSP_NOTIFY_PHASE_END_OF_FIRMWARE
to skip FSP notify APIs (Ready to boot and End of Firmware) and make
use of native coreboot driver to perform SoC recommended operations
prior booting to payload/OS.
Additionally, created a helper function `heci_finalize()` to keep HECI
related operations separated for easy guarding again config.
TODO: coreboot native implementation to skip FSP notify phase API (post
pci enumeration) is still WIP.
BUG=b:211954778
TEST=Able to build brya with these changes and coreboot log with this
code change as below when ADL SoC selects required configs.
BS: BS_PAYLOAD_LOAD run times (exec / console): 135 / 62 ms
coreboot skipped calling FSP notify phase: 00000040.
coreboot skipped calling FSP notify phase: 000000f0.
BS: BS_PAYLOAD_LOAD exit times (exec / console): 0 / 11 ms
Finalizing chipset.
apm_control: Finalizing SMM.
APMC done.
HECI: Sending End-of-Post
CSE: EOP requested action: continue boot
CSE EOP successful, continuing boot
HECI: CSE device 16.1 is disabled
HECI: CSE device 16.4 is disabled
HECI: CSE device 16.5 is disabled
BS: BS_PAYLOAD_BOOT entry times (exec / console): 9 / 27 ms
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I0198c9568de0e74053775682a44324405746389a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60406
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Diffstat (limited to 'src/soc/intel/alderlake')
| -rw-r--r-- | src/soc/intel/alderlake/Kconfig | 2 | ||||
| -rw-r--r-- | src/soc/intel/alderlake/finalize.c | 13 |
2 files changed, 10 insertions, 5 deletions
diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig index f97b2f2e06..4ced781ca7 100644 --- a/src/soc/intel/alderlake/Kconfig +++ b/src/soc/intel/alderlake/Kconfig @@ -108,8 +108,6 @@ config CPU_SPECIFIC_OPTIONS select UDELAY_TSC select UDK_202005_BINDING select USE_FSP_NOTIFY_PHASE_POST_PCI_ENUM - select USE_FSP_NOTIFY_PHASE_READY_TO_BOOT - select USE_FSP_NOTIFY_PHASE_END_OF_FIRMWARE config ALDERLAKE_A0_CONFIGURE_PMC_DESCRIPTOR bool diff --git a/src/soc/intel/alderlake/finalize.c b/src/soc/intel/alderlake/finalize.c index b31395d74a..7498f3f7fa 100644 --- a/src/soc/intel/alderlake/finalize.c +++ b/src/soc/intel/alderlake/finalize.c @@ -80,6 +80,13 @@ static void sa_finalize(void) sa_lock_pam(); } +static void heci_finalize(void) +{ + heci_set_to_d0i3(); + if (CONFIG(DISABLE_HECI1_AT_PRE_BOOT)) + heci1_disable(); +} + static void soc_finalize(void *unused) { printk(BIOS_DEBUG, "Finalizing chipset.\n"); @@ -88,9 +95,9 @@ static void soc_finalize(void *unused) apm_control(APM_CNT_FINALIZE); tbt_finalize(); sa_finalize(); - heci_set_to_d0i3(); - if (CONFIG(DISABLE_HECI1_AT_PRE_BOOT)) - heci1_disable(); + if (CONFIG(USE_FSP_NOTIFY_PHASE_READY_TO_BOOT) && + CONFIG(USE_FSP_NOTIFY_PHASE_END_OF_FIRMWARE)) + heci_finalize(); /* Indicate finalize step with post code */ post_code(POST_OS_BOOT); |