diff options
| author | Rob Barnes <robbarnes@google.com> | 2021-09-02 08:52:42 -0600 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2021-09-05 19:21:15 +0000 |
| commit | 888f3030376195a702e4335a08763828fb65d0b2 (patch) | |
| tree | 5a93448cccb92cff308b82d0f77c376040c6184e | |
| parent | 26a77eb4d1074327282eeb65407aec130c0bb3ba (diff) | |
mb/google/guybrush: Set eSPI alert as dedicated open drain
Guybrush based boards must usa a dedicated eSPI alert#.
Must be open drain to prevent power leaks.
Keep guybrush reference board in-band since alert# may not be connected.
BUG=b:198409370
TEST=Build guybrush and nipperkin, boot guybrush
BRANCH=None
Change-Id: I4b23bfc6a1167aebfde5acd524fda043b63163dc
Signed-off-by: Rob Barnes <robbarnes@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57313
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
| -rw-r--r-- | src/mainboard/google/guybrush/variants/baseboard/devicetree.cb | 2 | ||||
| -rw-r--r-- | src/mainboard/google/guybrush/variants/guybrush/overridetree.cb | 3 |
2 files changed, 4 insertions, 1 deletions
diff --git a/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb b/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb index df8bd2afd3..a0d51144b8 100644 --- a/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb @@ -36,7 +36,7 @@ chip soc/amd/cezanne .io_mode = ESPI_IO_MODE_QUAD, .op_freq_mhz = ESPI_OP_FREQ_33_MHZ, .crc_check_enable = 1, - .alert_pin = ESPI_ALERT_PIN_IN_BAND, + .alert_pin = ESPI_ALERT_PIN_OPEN_DRAIN, .periph_ch_en = 1, .vw_ch_en = 1, .oob_ch_en = 0, diff --git a/src/mainboard/google/guybrush/variants/guybrush/overridetree.cb b/src/mainboard/google/guybrush/variants/guybrush/overridetree.cb index 88c7d42059..e7329171e0 100644 --- a/src/mainboard/google/guybrush/variants/guybrush/overridetree.cb +++ b/src/mainboard/google/guybrush/variants/guybrush/overridetree.cb @@ -168,4 +168,7 @@ chip soc/amd/cezanne end end + # TODO(b/198596430): Disable in-band alerts after majority boards are reworked + register "common_config.espi_config.alert_pin" = "ESPI_ALERT_PIN_IN_BAND" + end # chip soc/amd/cezanne |