diff options
Diffstat (limited to 'src/mainboard/google/bolt/smihandler.c')
| -rw-r--r-- | src/mainboard/google/bolt/smihandler.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/mainboard/google/bolt/smihandler.c b/src/mainboard/google/bolt/smihandler.c index b3928524fd..54dcb73077 100644 --- a/src/mainboard/google/bolt/smihandler.c +++ b/src/mainboard/google/bolt/smihandler.c @@ -21,6 +21,7 @@ #include <arch/io.h> #include <console/console.h> #include <cpu/x86/smm.h> +#include <southbridge/intel/lynxpoint/lp_gpio.h> #include <southbridge/intel/lynxpoint/nvs.h> #include <southbridge/intel/lynxpoint/pch.h> #include <southbridge/intel/lynxpoint/me.h> @@ -87,6 +88,26 @@ void mainboard_smi_gpi(u32 gpi_sts) } } +static void bolt_wlan_off(void) +{ + u16 gpio_base = pci_read_config16(PCH_LPC_DEV, GPIO_BASE) & 0xfffc; + u32 gpio_conf; + + /* Make sure pin is owned by GPIO subsystem and not ACPI */ + gpio_conf = inl(gpio_base + GPIO_OWNER(0)); + gpio_conf |= GPIO_OWNER_GPIO << 29; + outl(gpio_conf, gpio_base + GPIO_OWNER(0)); + + /* Set GPIO29 config to only be reset on RSMRST */ + gpio_conf = inl(gpio_base + GPIO_RESET(0)); + gpio_conf |= GPIO_RESET_RSMRST << 29; + outl(gpio_conf, gpio_base + GPIO_RESET(0)); + + /* Set WLAN_OFF_L (GPIO29) as Output GPIO driven high */ + gpio_conf = GPIO_MODE_GPIO | GPIO_DIR_OUTPUT | GPO_LEVEL_HIGH; + outl(gpio_conf, gpio_base + GPIO_CONFIG0(29)); +} + void mainboard_smi_sleep(u8 slp_typ) { /* Disable USB charging if required */ @@ -109,6 +130,9 @@ void mainboard_smi_sleep(u8 slp_typ) break; } + /* Set WLAN_OFF GPIO state */ + bolt_wlan_off(); + /* Disable SCI and SMI events */ google_chromeec_set_smi_mask(0); google_chromeec_set_sci_mask(0); |