From c9fea5cdec8214703edcea9ea3012f37a37b1c3c Mon Sep 17 00:00:00 2001 From: Lin Huang Date: Tue, 30 Aug 2016 15:34:42 -0700 Subject: google/gru: pass apio number to arm-trust-firmware To save power when entering suspend, gpios 2 to 4 need to be set to input and 'pull none' mode. Pass the APIO configuration to ATF so it can do a proper job here. BRANCH=None BUG=chrome-os-partner:56423 TEST=run suspend_stress_test on kevin board Change-Id: Id57fe8f622ae3f9c2bc7e58be89518b2b846cd37 Signed-off-by: Patrick Georgi Original-Commit-Id: 9c42082d1ca9a6baa735821382d3e83c1f8dc9ad Original-Change-Id: Iaf441e8e34c5591ffe7c65f6533fcf0b733ff5ac Original-Signed-off-by: Lin Huang Original-Reviewed-on: https://chromium-review.googlesource.com/378475 Original-Commit-Ready: Caesar Wang Original-Tested-by: Caesar Wang Original-Reviewed-by: Julius Werner Reviewed-on: https://review.coreboot.org/16720 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth --- src/mainboard/google/gru/mainboard.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'src') diff --git a/src/mainboard/google/gru/mainboard.c b/src/mainboard/google/gru/mainboard.c index 1812a2ab41..b9d5355bf1 100644 --- a/src/mainboard/google/gru/mainboard.c +++ b/src/mainboard/google/gru/mainboard.c @@ -43,6 +43,23 @@ static void configure_emmc(void) rkclk_configure_emmc(); } +static void register_apio_suspend(void) +{ + static struct bl31_apio_param param_apio = { + .h = { + .type = PARAM_SUSPEND_APIO, + }, + .apio = { + .apio1 = 1, + .apio2 = 1, + .apio3 = 1, + .apio4 = 1, + .apio5 = 1, + }, + }; + register_bl31_param(¶m_apio.h); +} + static void register_gpio_suspend(void) { /* @@ -228,6 +245,7 @@ static void mainboard_init(device_t dev) register_reset_to_bl31(); register_poweroff_to_bl31(); register_gpio_suspend(); + register_apio_suspend(); } static void enable_backlight_booster(void) -- cgit v1.2.3