[coreboot-gerrit] Patch merged into coreboot/master: drivers/i2c/tpm: Fix early TPM probe

gerrit at coreboot.org gerrit at coreboot.org
Thu Sep 8 16:24:15 CEST 2016


the following patch was just integrated into master:
commit 1ca196841ac4db46d8d9c3c55004c3e9ee3c8844
Author: Duncan Laurie <dlaurie at chromium.org>
Date:   Wed Sep 7 10:52:12 2016 -0700

    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 at chromium.org>
    Reviewed-on: https://review.coreboot.org/16527
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin <adurbin at chromium.org>
    Reviewed-by: Furquan Shaikh <furquan at google.com>
    Reviewed-by: Paul Menzel <paulepanter at users.sourceforge.net>


See https://review.coreboot.org/16527 for details.

-gerrit



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