diff options
| author | Eric Lai <eric_lai@quanta.corp-partner.google.com> | 2022-03-23 08:48:03 +0800 |
|---|---|---|
| committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2022-03-25 15:58:19 +0000 |
| commit | c4ca20f67ff37b59acfc7779829ac28cd30effb9 (patch) | |
| tree | f1d01febed3439abc237cf9f06316a3ef4aff995 /src/drivers/i2c/tpm/Kconfig | |
| parent | 66f99f7fa7e7644e2549619b375e758492b601e3 (diff) | |
drivers/i2c/tpm: Work around missing board_cfg in Ti50 FW under 0.15
Ti50 FW under 0.15 is not support board cfg command which causes I2C
errors and entering recovery mode. And ODM stocks are 0.12 pre-flashed.
Add workaround for the old Ti50 chip.
BUG=b:224650720
TEST=no I2C errors in coreboot.
[ERROR] cr50_i2c_read: Address write failed
[INFO ] .I2C stop bit not received
Signed-off-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Change-Id: Ieec7842ca66b4c690df04a400cebcf45138c745d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63011
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Kangheui Won <khwon@chromium.org>
Diffstat (limited to 'src/drivers/i2c/tpm/Kconfig')
| -rw-r--r-- | src/drivers/i2c/tpm/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/drivers/i2c/tpm/Kconfig b/src/drivers/i2c/tpm/Kconfig index dcf9060952..0d5f06bbdd 100644 --- a/src/drivers/i2c/tpm/Kconfig +++ b/src/drivers/i2c/tpm/Kconfig @@ -24,6 +24,15 @@ config MAINBOARD_HAS_I2C_TPM_GENERIC help Board has a generic I2C TPM support +config MAINBOARD_NEEDS_I2C_TI50_WORKAROUND + bool + default n + help + Ti50 FW versions below 0.15 don't support the firmware_version or board_cfg registers, + and trying to access them causes I2C errors. This config will skip accesses to these + registers, and should be selected for boards using Ti50 chips with FW < 0.15. The config + will be removed once all Ti50 stocks are updated to 0.15 or higher. + config DRIVER_TIS_DEFAULT bool depends on I2C_TPM |