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mb/google/sarien: Configure both GPP_H12 and GPP_H13 for SSD on Arcada 

Currently, Arcada only supports D3hot during S0iX and there is leakage
power around 5~10mW depending on SSD vendors.
To support D3cold for SSD during S0iX, one MOSFET will be added on DVT2
and two GPIOs are required to be configured.
GPP_H13 is to control SSD_SCP_PWR_EN(power enable) and GPP_H12 is to
control SSD reset.

BUG=b:130741066
TEST=Measure SSD power during S0iX from Arcada(DVT2)

Change-Id: I868590e9e85d5df07930a3681884e3fc3a5c4d50
Signed-off-by: Roy Mingi Park <roy.mingi.park@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32361
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Roy Mingi Park 2019-04-13 15:16:50 -07:00 committed by Duncan Laurie
parent c94ba798d6
commit e3f5f2155a
1 changed files with 2 additions and 2 deletions
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4
src/mainboard/google/sarien/variants/arcada/gpio.c
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@ -211,8 +211,8 @@ static const struct pad_config gpio_table[] = {
/* I2C4_SCL */ PAD_CFG_NF(GPP_H9, NONE, DEEP, NF1), /* I2C_SCL_H1 */
/* I2C5_SDA */ PAD_NC(GPP_H10, NONE), /* ISH_I2C2_SDA */
/* I2C5_SCL */ PAD_NC(GPP_H11, NONE), /* ISH_I2C2_SCL */
/* M2_SKT2_CFG0 */ PAD_NC(GPP_H12, NONE),
/* M2_SKT2_CFG1 */ PAD_NC(GPP_H13, NONE),
/* M2_SKT2_CFG0 */ PAD_CFG_GPO(GPP_H12, 1, DEEP), /* D3 cold RST */
/* M2_SKT2_CFG1 */ PAD_CFG_GPO(GPP_H13, 1, DEEP), /* M.2 SSD D3 cold */
/* M2_SKT2_CFG2 */ PAD_NC(GPP_H14, NONE),
/* M2_SKT2_CFG3 */ PAD_CFG_GPO(GPP_H15, 1, DEEP), /* BT_RADIO_DIS# */
/* DDPF_CTRLCLK */ PAD_NC(GPP_H16, NONE),