diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2017-01-20 14:03:50 -0600 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2017-01-21 21:45:05 +0100 |
| commit | aa6482e88e2f553ee841284e5b44672eee85d3ec (patch) | |
| tree | b76572b9300956367b27f32a5356886a879a4bc1 /src | |
| parent | 01bf599ea86abb360b0a57b892484dbb9c3ba387 (diff) | |
mainboard/google/reef: remove internal pullups on PP1800_S rail
The PP1800_S rail is turned off in S3. However, enabling internal
pullups on the pins which are connected to PP1800_S results in
leakage into the P1800_S rail. Fix this by disabling the internal
pullups on PP1800_S rail pins.
BUG=chrome-os-partner:61968
BRANCH=reef
TEST=measured leakage on PP1800_S rail. Gone with this patch.
Change-Id: I5ae92b31c1a633f59d425f4105b8db1c9c18c808
Signed-off-by: Aaron Duribn <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/18189
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/reef/variants/baseboard/gpio.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/mainboard/google/reef/variants/baseboard/gpio.c b/src/mainboard/google/reef/variants/baseboard/gpio.c index a764b466e1..390ef0f3da 100644 --- a/src/mainboard/google/reef/variants/baseboard/gpio.c +++ b/src/mainboard/google/reef/variants/baseboard/gpio.c @@ -58,8 +58,8 @@ static const struct pad_config gpio_table[] = { PAD_CFG_NF(GPIO_174, UP_20K, DEEP, NF1), /* SDCARD_D1 */ PAD_CFG_NF(GPIO_175, UP_20K, DEEP, NF1), /* SDCARD_D2 */ PAD_CFG_NF(GPIO_176, UP_20K, DEEP, NF1), /* SDCARD_D3 */ - /* Card detect is active LOW. Pull up by 20K */ - PAD_CFG_NF(GPIO_177, UP_20K, DEEP, NF1), /* SDCARD_CD_N */ + /* Card detect is active LOW with external pull up. */ + PAD_CFG_NF(GPIO_177, NONE, DEEP, NF1), /* SDCARD_CD_N */ PAD_CFG_NF(GPIO_178, UP_20K, DEEP, NF1), /* SDCARD_CMD */ /* CLK feedback, internal signal, needs 20K pull down */ PAD_CFG_NF(GPIO_179, DN_20K, DEEP, NF1), /* SDCARD_CLK_FB */ @@ -288,7 +288,7 @@ static const struct pad_config gpio_table[] = { PAD_CFG_GPI(GPIO_10, DN_20K, DEEP), /* Board phase enforcement */ PAD_CFG_GPI_SCI_LOW(GPIO_11, NONE, DEEP, EDGE_SINGLE), /* EC SCI */ PAD_CFG_GPI(GPIO_12, UP_20K, DEEP), /* unused */ - PAD_CFG_GPI_APIC_LOW(GPIO_13, UP_20K, DEEP), /* PEN_INT_ODL */ + PAD_CFG_GPI_APIC_LOW(GPIO_13, NONE, DEEP), /* PEN_INT_ODL */ PAD_CFG_GPI_APIC_HIGH(GPIO_14, DN_20K, DEEP), /* FP_INT */ PAD_CFG_GPI_SCI_LOW(GPIO_15, NONE, DEEP, EDGE_SINGLE), /* TRACKPAD_INT_1V8_ODL */ PAD_CFG_GPI(GPIO_16, UP_20K, DEEP), /* unused */ @@ -299,7 +299,7 @@ static const struct pad_config gpio_table[] = { PAD_CFG_GPI_APIC_LOW(GPIO_21, NONE, DEEP), /* Touch IRQ */ PAD_CFG_GPI_SCI_LOW(GPIO_22, NONE, DEEP, LEVEL), /* EC wake */ PAD_CFG_GPI(GPIO_23, UP_20K, DEEP), /* unused */ - PAD_CFG_GPI(GPIO_24, UP_20K, DEEP), /* PEN_PDCT_ODL */ + PAD_CFG_GPI(GPIO_24, NONE, DEEP), /* PEN_PDCT_ODL */ PAD_CFG_GPI(GPIO_25, UP_20K, DEEP), /* unused */ PAD_CFG_GPI(GPIO_26, UP_20K, DEEP), /* unused */ PAD_CFG_GPI(GPIO_27, UP_20K, DEEP), /* unused */ |