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falco: Drive GPIO59/LTE_DISABLE_L low on S3/S5 

Try to prevent WWAN from causing spurious wakes.

Change-Id: Ifcc44063de0eb1634cab9dd244737071568e3455
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/63987
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4414
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
This commit is contained in:
Duncan Laurie 2013-07-31 14:08:59 -07:00 committed by Patrick Georgi
parent 7b4c4325e9
commit 7ad61f6262
1 changed files with 5 additions and 0 deletions
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5
src/mainboard/google/falco/smihandler.c
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@ -34,6 +34,7 @@
/* GPIO46 controls the WLAN_DISABLE_L signal. */ /* GPIO46 controls the WLAN_DISABLE_L signal. */
#define GPIO_WLAN_DISABLE_L 46 #define GPIO_WLAN_DISABLE_L 46
#define GPIO_LTE_DISABLE_L 59
int mainboard_io_trap_handler(int smif) int mainboard_io_trap_handler(int smif)
{ {
@ -104,6 +105,8 @@ void mainboard_smi_sleep(u8 slp_typ)
/* Prevent leak from standby rail to WLAN rail in S3. */ /* Prevent leak from standby rail to WLAN rail in S3. */
set_gpio(GPIO_WLAN_DISABLE_L, 0); set_gpio(GPIO_WLAN_DISABLE_L, 0);
/* Disable LTE */
set_gpio(GPIO_LTE_DISABLE_L, 0);
break; break;
case 5: case 5:
if (smm_get_gnvs()->s5u0 == 0) if (smm_get_gnvs()->s5u0 == 0)
@ -115,6 +118,8 @@ void mainboard_smi_sleep(u8 slp_typ)
/* Prevent leak from standby rail to WLAN rail in S5. */ /* Prevent leak from standby rail to WLAN rail in S5. */
set_gpio(GPIO_WLAN_DISABLE_L, 0); set_gpio(GPIO_WLAN_DISABLE_L, 0);
/* Disable LTE */
set_gpio(GPIO_LTE_DISABLE_L, 0);
break; break;
} }