diff options
| author | Sridhar Siricilla <sridhar.siricilla@intel.com> | 2020-05-12 21:28:53 +0530 |
|---|---|---|
| committer | Subrata Banik <subrata.banik@intel.com> | 2020-05-15 07:33:50 +0000 |
| commit | 6ad701054230e25fa9b2afe414ca8da6d5a626ee (patch) | |
| tree | 368cc77a8aacfca348a76c378f10879b55aecb47 | |
| parent | 9e8dd06cd4adc8c5bae267251d3a5532737d05e4 (diff) | |
soc/intel: Correct comment on HMRFPO_ENABLE HECI command
Correct comment on HMRFPO_ENABLE flow for CSE Lite SKU. In order to place
CSE into SECOVER_MEI_MSG mode, below procedure has to be followed.
1. Ensure CSE boots from RO(BP1).
- Set CSE's next boot partition to RO
- Issue GLOBAL_RESET HECI command to reset the system
2. Send HMRFPO_ENABLE command to CSE. Further, no reset is required.
TEST=Verified on hatch
Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Change-Id: I213e02ba3898194fa6c8fe38fab34b5c19f25aa1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41340
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/cse.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/soc/intel/common/block/include/intelblocks/cse.h b/src/soc/intel/common/block/include/intelblocks/cse.h index 103323b7cc..588d3eb79c 100644 --- a/src/soc/intel/common/block/include/intelblocks/cse.h +++ b/src/soc/intel/common/block/include/intelblocks/cse.h @@ -130,10 +130,10 @@ int cse_request_global_reset(enum rst_req_type rst_type); /* * Sends HMRFPO_ENABLE command. * HMRFPO - Host ME Region Flash Protection Override. - * For CSE Firmware SKU Custom, procedure to place CSE in HMRFPO (SECOVER_MEI_MSG) mode: - * 1. Ensure CSE boots from BP1(RO). - * - Send set_next_boot_partition(BP1) - * - Issue CSE Only Reset + * For CSE Lite SKU, procedure to place CSE in HMRFPO (SECOVER_MEI_MSG) mode: + * 1. Ensure CSE boots from RO(BP1). + * - Set CSE's next boot partition to RO + * - Issue GLOBAL_RESET command to reset the system * 2. Send HMRFPO_ENABLE command to CSE. Further, no reset is required. * * The HMRFPO mode prevents CSE to execute SPI I/O cycles to CSE region, and unlocks |