Venkateswarlu V Vinjamuri (venkateswarlu.v.vinjamuri@intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/18497
-gerrit
commit 1e2c187dd39c0d9b32cc42fbf4f2989d91314610 Author: Venkateswarlu Vinjamuri venkateswarlu.v.vinjamuri@intel.com Date: Fri Feb 24 15:54:39 2017 -0800
mainboard/google/reef: Configure SDCARD card detect pin
This configures GPIO_177 as an input pin for SDCARD card detect. This also changes the ownership of the pin from ACPI to GPIO driver.
Assign the sdcard card detect pin in devicetree.
CQ-DEPEND= BUG=chrome-os-partner:63070 TEST=None
Change-Id: Ia8aef60bd7d0ea36afb39f76fab051aa46a2ed64 Signed-off-by: Venkateswarlu Vinjamuri venkateswarlu.v.vinjamuri@intel.com --- src/mainboard/google/reef/variants/baseboard/devicetree.cb | 3 +++ src/mainboard/google/reef/variants/baseboard/gpio.c | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/mainboard/google/reef/variants/baseboard/devicetree.cb b/src/mainboard/google/reef/variants/baseboard/devicetree.cb index b0c82e2..164d646 100644 --- a/src/mainboard/google/reef/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/reef/variants/baseboard/devicetree.cb @@ -17,6 +17,9 @@ chip soc/intel/apollolake # If the Board does not have PERST_0, assign GPIO_PRT0_UDEF register "prt0_gpio" = "GPIO_122"
+ # GPIO for SD card detect + register "sdcard_cd_gpio_default" = "GPIO_177" + # EMMC TX DATA Delay 1 # Refer to EDS-Vol2-22.3. # [14:8] steps of delay for HS400, each 125ps. diff --git a/src/mainboard/google/reef/variants/baseboard/gpio.c b/src/mainboard/google/reef/variants/baseboard/gpio.c index a9a6248..043d024 100644 --- a/src/mainboard/google/reef/variants/baseboard/gpio.c +++ b/src/mainboard/google/reef/variants/baseboard/gpio.c @@ -59,7 +59,7 @@ static const struct pad_config gpio_table[] = { 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 with external pull up. */ - PAD_CFG_NF(GPIO_177, NONE, DEEP, NF1), /* SDCARD_CD_N */ + PAD_CFG_GPI_GPIO_DRIVER(GPIO_177, NONE, DEEP), /* 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 */
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Venkateswarlu V Vinjamuri