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authorDuncan Laurie <dlaurie@chromium.org>2016-09-07 10:52:12 -0700
committerDuncan Laurie <dlaurie@chromium.org>2016-09-08 16:24:08 +0200
commit1ca196841ac4db46d8d9c3c55004c3e9ee3c8844 (patch)
tree75c49bdb3430a4fb60a82201399b7d7ed53b54d0 /payloads
parent7fbdad80fd439a8afb04e20bd67c8c5fe766dc1a (diff)
drivers/i2c/tpm: Fix early TPM probe
The early TPM probe was done directly in tis.c ignoring the lower layer that provides appropriate access to the chip. Move this into a tpm_vendor_probe() function so it can use iic_tpm_read() with all of the built-in delays and semantics instead of calling i2c_readb() directly from the wrong layer. This fixes early init failures that were seen with the cr50 i2c tpm on the reef mainboard. Change-Id: I9bb3b820d10f6e2ea24c57b90cf0edc813cdc7e0 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16527 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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