Furquan Shaikh (furquan@google.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/16243
-gerrit
commit 254b4ae8f7bcc719c8b7e3dd7fefc5de9f1999d4 Author: Furquan Shaikh furquan@google.com Date: Wed Aug 17 16:18:05 2016 -0700
google/reef: Configure NFC gpios correctly before entering sleep
Before entering sleep, ensure that the NFC gpios are configured correctly to avoid leakage.
BUG=chrome-os-partner:56281
Change-Id: I2bb2e7ba468df445aa5f6c2b22ae0a74fcaa44f6 Signed-off-by: Furquan Shaikh furquan@google.com --- src/mainboard/google/reef/gpio.h | 6 ++++++ src/mainboard/google/reef/smihandler.c | 4 ++++ 2 files changed, 10 insertions(+)
diff --git a/src/mainboard/google/reef/gpio.h b/src/mainboard/google/reef/gpio.h index be7f501..dbe7062 100644 --- a/src/mainboard/google/reef/gpio.h +++ b/src/mainboard/google/reef/gpio.h @@ -350,6 +350,12 @@ static const struct pad_config early_gpio_table[] = { PAD_CFG_NF(GPIO_129, UP_2K, DEEP, NF1), /* LPSS_I2C2_SCL */ };
+/* GPIO settings before entering sleep. */ +static const struct pad_config sleep_gpio_table[] = { + PAD_CFG_GPO(GPIO_150, 0, DEEP), /* NFC_RESET_ODL */ + PAD_CFG_GPI_APIC_LOW(GPIO_20, NONE, DEEP), /* NFC_INT_L */ +}; + /* * The proto boards didn't have memory SKU pins, but the same ones can be * utilized as post proto boards because the pins used were never connected diff --git a/src/mainboard/google/reef/smihandler.c b/src/mainboard/google/reef/smihandler.c index e26c176..d33222b 100644 --- a/src/mainboard/google/reef/smihandler.c +++ b/src/mainboard/google/reef/smihandler.c @@ -19,7 +19,9 @@ #include <ec/google/chromeec/smm.h> #include <soc/pm.h> #include <soc/smm.h> +#include <soc/gpio.h> #include "ec.h" +#include "gpio.h"
void mainboard_smi_gpi_handler(const struct gpi_status *sts) { @@ -29,6 +31,8 @@ void mainboard_smi_gpi_handler(const struct gpi_status *sts)
void mainboard_smi_sleep(u8 slp_typ) { + gpio_configure_pads(sleep_gpio_table, ARRAY_SIZE(sleep_gpio_table)); + if (slp_typ == ACPI_S3) enable_gpe(GPIO_TIER_1_SCI);