diff options
Diffstat (limited to 'src/mainboard/google/guybrush/variants/baseboard/devicetree.cb')
| -rw-r--r-- | src/mainboard/google/guybrush/variants/baseboard/devicetree.cb | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb b/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb index 2d7eaec6c6fc..04e6e994be46 100644 --- a/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb @@ -42,7 +42,16 @@ chip soc/amd/cezanne .oob_ch_en = 0, .flash_ch_en = 0, - .vw_irq_polarity = ESPI_VW_IRQ_LEVEL_HIGH(1), + /* + * b/218874489 - This should really be ESPI_VW_IRQ_LEVEL_HIGH, + * but eSPI gets configured in verstage which is in RO. + * We have already locked RO for guybrush devices so we need + * make it so x86 coreboot re-initializes the vw_irq_polarity. + * This leaves another problem, verstage also runs in S0i3, but + * we don't run any other x86 coreboot stages, so we need to + * figure out a way to reset the eSPI polarity. + */ + .vw_irq_polarity = ESPI_VW_IRQ_LEVEL_LOW(1), }" # Enable S0i3 support |