diff options
| author | Edward O'Callaghan <quasisec@google.com> | 2020-01-21 15:58:59 +1100 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-02-26 17:07:24 +0000 |
| commit | d5a67aa4a46bdb7e1a70c6a429a63bacf4bbc9db (patch) | |
| tree | bcc1d6dfe314570860d0d5673c6011d37206ae31 /src/mainboard/google/hatch | |
| parent | 6130ad26b7fd2f2945d04aca10a5c5961e7d4edc (diff) | |
mainboard/hatch: Fix GPE wake comments
The indirection of names is exceedingly confusing for ultimately the single
interrupt trace of EC_PCH_WAKE_ODL between the EC gpio#74 to GPD2/LAN_WAKE# on
the PCH side.
This helps folks chase this indirection down through the code.
BUG=b:147026979
BRANCH=none
TEST=builds
Change-Id: I35d746a202dae06d2f6f1edfaa3889864b09f50d
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38491
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/mainboard/google/hatch')
3 files changed, 8 insertions, 3 deletions
diff --git a/src/mainboard/google/hatch/variants/baseboard/gpio.c b/src/mainboard/google/hatch/variants/baseboard/gpio.c index dcd987fbb4..527bf93118 100644 --- a/src/mainboard/google/hatch/variants/baseboard/gpio.c +++ b/src/mainboard/google/hatch/variants/baseboard/gpio.c @@ -377,7 +377,7 @@ static const struct pad_config gpio_table[] = { /* H23 : GPP_H23_STRAP */ PAD_NC(GPP_H23, NONE), - /* GPD2: LAN_WAKE# ==> EC_PCH_WAKE_OD */ + /* GPD2: LAN_WAKE# ==> EC_PCH_WAKE_ODL */ PAD_CFG_NF(GPD2, NONE, DEEP, NF1), /* SD card detect VGPIO */ diff --git a/src/mainboard/google/hatch/variants/baseboard/include/baseboard/gpio.h b/src/mainboard/google/hatch/variants/baseboard/include/baseboard/gpio.h index e83732cb62..7bdd912a7b 100644 --- a/src/mainboard/google/hatch/variants/baseboard/include/baseboard/gpio.h +++ b/src/mainboard/google/hatch/variants/baseboard/include/baseboard/gpio.h @@ -22,7 +22,7 @@ #define GPIO_PCH_WP GPP_C20 -/* EC wake pin is LAN_WAKE# */ +/* EC wake pin is routed to GPD2/LAN_WAKE# on PCH */ #define GPE_EC_WAKE GPE0_LAN_WAK /* eSPI virtual wire reporting */ diff --git a/src/mainboard/google/hatch/variants/puff/include/variant/ec.h b/src/mainboard/google/hatch/variants/puff/include/variant/ec.h index 501fab0dde..12837639dc 100644 --- a/src/mainboard/google/hatch/variants/puff/include/variant/ec.h +++ b/src/mainboard/google/hatch/variants/puff/include/variant/ec.h @@ -54,7 +54,12 @@ /* Enable EC backed PD MCU device in ACPI */ #define EC_ENABLE_PD_MCU_DEVICE -/* Provide wake pin for EC for _PRW WoL method */ +/** + * Defines EC wake pin route. + * Note that GPE_EC_WAKE is defined, confusingly, as + * GPE_LAN_WAK which is GPD2/LAN_WAKE# on the PCH or + * as the line EC_PCH_WAKE_ODL on the schematic. + */ #define EC_ENABLE_WAKE_PIN GPE_EC_WAKE #define SIO_EC_MEMMAP_ENABLE /* EC Memory Map Resources */ |