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| author | Shawn Nematbakhsh <shawnn@chromium.org> | 2013-07-24 11:01:08 -0700 |
|---|---|---|
| committer | Patrick Georgi <patrick@georgi-clan.de> | 2013-12-21 08:04:21 +0100 |
| commit | 3f1791536159953729cc928b1f03a3236905428c (patch) | |
| tree | dae51c27f7458fe0ea83eca1abeba0bd3401e9bf /src/mainboard/google/peppy | |
| parent | aa04ed649442296366bc2bad1936ec5184235069 (diff) | |
| download | coreboot-3f1791536159953729cc928b1f03a3236905428c.tar.xz | |
peppy: Drive WLAN_DISABLE_L / BT_ON low in S3 and S5.
When the board is in S3 and S5 the WLAN_DISABLE_L signal
can leak power into the WLAN power well since the GPIO
controlling WLAN_DISABLE_L is in the suspend well. Therefore,
drive WLAN_DISABLE_L low to avoid the power leak.
This is a clone of a Falco change:
I1a0df80dd47fdbd535aca7a9d49253794c480606.
Change-Id: I625dfbb228d1f293b880a52dfe552842d55a17d1
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/63220
Reviewed-by: Dave Parker <dparker@chromium.org>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-on: http://review.coreboot.org/4383
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'src/mainboard/google/peppy')
| -rw-r--r-- | src/mainboard/google/peppy/smihandler.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mainboard/google/peppy/smihandler.c b/src/mainboard/google/peppy/smihandler.c index 16e8f64d4e..07cfee320d 100644 --- a/src/mainboard/google/peppy/smihandler.c +++ b/src/mainboard/google/peppy/smihandler.c @@ -34,6 +34,8 @@ /* Codec enable: GPIO45 */ #define GPIO_PP3300_CODEC_EN 45 +/* WLAN / BT enable: GPIO46 */ +#define GPIO_WLAN_DISABLE_L 46 int mainboard_io_trap_handler(int smif) { @@ -103,6 +105,7 @@ void mainboard_smi_sleep(u8 slp_typ) 1, USB_CHARGE_MODE_DISABLED); set_gpio(GPIO_PP3300_CODEC_EN, 0); + set_gpio(GPIO_WLAN_DISABLE_L, 0); break; case 5: if (smm_get_gnvs()->s5u0 == 0) @@ -113,6 +116,7 @@ void mainboard_smi_sleep(u8 slp_typ) 1, USB_CHARGE_MODE_DISABLED); set_gpio(GPIO_PP3300_CODEC_EN, 0); + set_gpio(GPIO_WLAN_DISABLE_L, 0); break; } |