diff options
| author | Shelley Chen <shchen@google.com> | 2024-04-26 14:42:28 -0700 |
|---|---|---|
| committer | Shelley Chen <shchen@google.com> | 2024-04-30 03:12:04 +0000 |
| commit | c7db3d0f088dfee9c15266d9206a492d2a4111c2 (patch) | |
| tree | f101372835d5ecf0a1a40b58c900086e1feb42d1 /src/mainboard/google | |
| parent | 1fa0fcbd7b47dce6b7726e8a37e8294e899521c6 (diff) | |
mb/google/brox: Add 20K pulldown to GPP_D14
GPP_D14 is floating when ISH is not being used and wasting power. Add
pulldown to prevent this from happening.
BUG=b:336654954
BRANCH=None
TEST=emerge-brox coreboot chromeos-bootimage
make sure OS boots up
HW team validated that power usage is 20 mW lower
Change-Id: I4e19e98fa31022ece66a47402a2a4461b430ef70
Signed-off-by: Shelley Chen <shchen@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82096
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Diffstat (limited to 'src/mainboard/google')
| -rw-r--r-- | src/mainboard/google/brox/variants/baseboard/brox/gpio.c | 2 | ||||
| -rw-r--r-- | src/mainboard/google/brox/variants/brox/fw_config.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/src/mainboard/google/brox/variants/baseboard/brox/gpio.c b/src/mainboard/google/brox/variants/baseboard/brox/gpio.c index f7458516e1..14eb3c45f1 100644 --- a/src/mainboard/google/brox/variants/baseboard/brox/gpio.c +++ b/src/mainboard/google/brox/variants/baseboard/brox/gpio.c @@ -168,7 +168,7 @@ static const struct pad_config gpio_table[] = { /* GPP_D13 : [NF1: ISH_UART0_RXD NF3: I2C6_SDA NF6: USB_C_GPP_D13] ==> UART0_ISH_RX_DBG_TX */ PAD_NC(GPP_D13, NONE), /* GPP_D14 : [NF1: ISH_UART0_TXD NF3: I2C6_SCL NF6: USB_C_GPP_D14] ==> UART0_ISH_TX_DBG_RX */ - PAD_NC(GPP_D14, NONE), + PAD_NC(GPP_D14, DN_20K), /* GPP_D15 : ISH_UART0_RTS_L/I2C7B_SDA ==> SOC_ISH_UART0_RTS_L (NC) */ PAD_NC(GPP_D15, NONE), /* GPP_D16 : ISH_UART0_CTS_L/I2C7B_SCL ==> SOC_GPP_D16 (NC) */ diff --git a/src/mainboard/google/brox/variants/brox/fw_config.c b/src/mainboard/google/brox/variants/brox/fw_config.c index 512d27ed4c..3962991325 100644 --- a/src/mainboard/google/brox/variants/brox/fw_config.c +++ b/src/mainboard/google/brox/variants/brox/fw_config.c @@ -24,8 +24,8 @@ static const struct pad_config ish_enable_pads[] = { /* GPP_D13 : [NF1: ISH_UART0_RXD ==> UART0_ISH_RX_DBG_TX */ PAD_CFG_NF(GPP_D13, NONE, DEEP, NF1), /* GPP_D14 : [NF1: ISH_UART0_TXD ==> UART0_ISH_TX_DBG_RX */ - PAD_CFG_NF(GPP_D14, NONE, DEEP, NF1), - /* GPP_E9 : [NF1: USB_OC0# NF2: ISH_GP4 NF6: USB_C_GPP_E9] ==> NOTE_BOOK_MODE */ + PAD_CFG_NF(GPP_D14, DN_20K, DEEP, NF1), + /* GPP_E9 : [NF1: USB_OC0# NF2: ISH_GP4 NF6: USB_C_GPP_E9] ==> NOTE_BOOK_MODE */ PAD_CFG_NF(GPP_E9, NONE, PLTRST, NF2), }; |