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path: root/src/mainboard/google/bolt/smihandler.c
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Diffstat (limited to 'src/mainboard/google/bolt/smihandler.c')
-rw-r--r--src/mainboard/google/bolt/smihandler.c24
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);