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authorKarthikeyan Ramasubramanian <kramasub@google.com>2020-08-04 16:38:58 -0600
committerEdward O'Callaghan <quasisec@chromium.org>2020-08-14 08:34:21 +0000
commitf9cc6374f218789ae91dfc61f8d4494874908b5e (patch)
tree33c84fabbb325a0c2e4b3aaea8292684e4935b96 /toolchain.inc
parentcd9596b459b95d55051f81c4a3a8aa3e12df4d0f (diff)
soc/intel/common/cse_lite: Perform a board specific reset
When CSE Lite jumps from RO to RW, global reset is initiated. When AP is reset as part of global reset, in some boards TPM initialization fails. This is because AP reset is not detected by TPM hosting an older firmware version. To signal TPMs running older firmware version about AP reset, a modified reset sequence needs to be performed. Hence add support to perform board-specific reset sequence. BUG=b:162290856, b:162386991 TEST=Ensure that the device boots to OS with the board-specific reset sequence when CSE Lite jumps from RO to RW with an older and newer Cr50 firmware. Change-Id: I8663e7f25461e58e45766e2ac00d752bfa191d8b Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44187 Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Nick Vaccaro <nvaccaro@google.com> Reviewed-by: Edward O'Callaghan <quasisec@chromium.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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