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authorSubrata Banik <subratabanik@google.com>2022-05-30 14:18:32 +0530
committerSubrata Banik <subratabanik@google.com>2022-06-06 17:52:32 +0000
commit6876f49b7e3e8e750dc40ddbe1c37b6ab12c0153 (patch)
treec21d4b5d95877ec0f93056eb76bf84f4aafa580a /src/northbridge
parentea4f8c28fdd4817b05eec3ef47088cf994ef7a26 (diff)
soc/intel/meteorlake: Refactor bootblock SoC programming code
This patch ensures the IP initialization being done as part of MTL bootblock code is able to complete the bootblock phase without any visible hang. The re-ordering in the MTL bootblock SoC programming is required to ensure the SA early initialization is taking place prior to performing any PCI Read/Write operation (like P2SB bar enabling for IOE die etc.). Additionally, Fast SPI init takes place prior to enabling ROM caching etc. BUG=b:224325352 TEST= Able to build and start booting the MTL simics. Without this change, the code execution is stuck as below: [NOTE ]  coreboot-4.16-1236-g856464f162-dirty Sun May 29 15:32:20 UTC 2022 bootblock starting (log level: 8) [DEBUG]  CPU: Intel(R) Core(TM) i7 CPU (server)     @ 2.00GHz [DEBUG]  CPU: ID a06a0, MeteorLake A0, ucode: 80000018 [DEBUG]  CPU: AES supported, TXT supported, VT supported [DEBUG]  MCH: device id 7d02 (rev 00) is MeteorLake P [DEBUG]  PCH: device id 7e01 (rev 00) is MeteorLake SOC [DEBUG]  IGD: device id ffff (rev ff) is Unknown [INFO ]  PMC: Using default GPE route. [INFO ]  VBNV: CMOS invalid, restoring from flash [ERROR]  init_vbnv: failed to locate NVRAM [EMERG]  Cannot locate primary CBFS Able to detect the Flash and reading the SPI flash layout in proper with this change as below: [NOTE ]  coreboot-4.16-1236-g856464f162-dirty Sun May 29 15:32:20 UTC 2022 bootblock starting (log level: 8) [DEBUG]  CPU: Intel(R) Core(TM) i7 CPU (server)     @ 2.00GHz [DEBUG]  CPU: ID a06a0, MeteorLake A0, ucode: 80000018 [DEBUG]  CPU: AES supported, TXT supported, VT supported [DEBUG]  MCH: device id 7d02 (rev 00) is MeteorLake P [DEBUG]  PCH: device id 7e01 (rev 00) is MeteorLake SOC␛␛[DEBUG]  IGD: device id ffff (rev ff) is Unknown [INFO ]  PMC: Using default GPE route. [INFO ]  VBNV: CMOS invalid, restoring from flash [DEBUG]  FMAP: Found "FLASH" version 1.1 at 0x1804000. [DEBUG]  FMAP: base = 0x0 size = 0x2000000 #areas = 33 [DEBUG]  FMAP: area RW_NVRAM found @ 112b000 (24576 bytes) [INFO ]  SF: Detected 00 0000 with sector size 0x1000, total 0x2000000 Signed-off-by: Subrata Banik <subratabanik@google.com> Change-Id: I8485b195f77225d8870589ff2e4d3dbdc8931f0a Reviewed-on: https://review.coreboot.org/c/coreboot/+/64793 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tarun Tuli <taruntuli@google.com>
Diffstat (limited to 'src/northbridge')
0 files changed, 0 insertions, 0 deletions