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authorSridhar Siricilla <sridhar.siricilla@intel.com>2022-03-09 20:35:32 +0530
committerFelix Held <felix-coreboot@felixheld.de>2022-04-25 13:55:59 +0000
commit0aa1ac41c33e6cd53c42c6b697b676c0f3ced3eb (patch)
tree33536e8ebcad80d634cd8404342d2a811a3c65f2 /src/lib
parent574f3c8fe44593c9bba8e283f1e1f0b0cebea980 (diff)
soc/intel/common: Add support to control CSE firmware update
The patch adds support to control CSE Lite firmware update dynamically. In order to disable the CSE firmware update functionality, offset 0xf00 in the coreboot binary be updated with 0x1. Run below command on the binary to disable CSE firmwar update printf '\x01' | dd of=image-brya4es.serial.bin bs=1 seek=3840 count=1 conv=notrunc BUG=b:153410586 TEST=Verified CSE firmware update functionality is not getting triggered after updating the offset:0xF00 in the coreboot binary. ........................ CB Logs ...................................... [DEBUG] prev_sleep_state 5 [DEBUG] cse_lite: Number of partitions = 3 [DEBUG] cse_lite: Current partition = RW [DEBUG] cse_lite: Next partition = RW [DEBUG] cse_lite: Flags = 0x3 [DEBUG] cse_lite: RO version = 16.0.15.1752 (Status=0x0, Start=0x2000, End=0x19bfff) [DEBUG] cse_lite: RW version = 16.0.15.1752 (Status=0x0, Start=0x205000, End=0x439fff) rt_debug: pre_mem_debug.cse_fw_update_disable=1 [DEBUG] Boot Count incremented to 956 ....................................................................... Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com> Change-Id: I9f234b142191eb83137d5d83f21e890e1cb828ba Reviewed-on: https://review.coreboot.org/c/coreboot/+/62715 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
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