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Veyron: power on 5v drv for pinky-rev2

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EC need to enable 5v_drv when power on AP, disable it when power off AP.

BUG=None
TEST=USB host works well
BRANCH=None

Change-Id: Ie18679a5a2d3c676daf0af4da599fa010d98161d
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-on: https://chromium-review.googlesource.com/220162
Reviewed-by: Alexandru Stan <amstan@chromium.org>
Tested-by: Alexandru Stan <amstan@chromium.org>
Commit-Queue: Alexandru Stan <amstan@chromium.org>
This commit is contained in:
Chris Zhong
2014-09-26 10:08:19 +08:00
committed by chrome-internal-fetch
parent cac05af1aa
commit 7a8891268d
2 changed files with 14 additions and 0 deletions
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1
board/veyron/gpio.inc
View File

@@ -27,6 +27,7 @@ GPIO(KB_IN07, D, 2, GPIO_KB_INPUT, keyboard_raw_gpio_interrupt)
GPIO(WP_L, B, 4, GPIO_INPUT, NULL)
/* Outputs */
GPIO(5V_DRV, A, 8, GPIO_OUT_LOW, NULL)
GPIO(BAT_LED0, B, 11, GPIO_OUT_LOW, NULL)
GPIO(BAT_LED1, A, 11, GPIO_OUT_LOW, NULL)
GPIO(EC_BL_OVERRIDE, F, 1, GPIO_OUT_LOW, NULL)

13
power/rockchip.c
View File

@@ -163,6 +163,17 @@ static void set_pmic_source(int asserted)
gpio_set_level(GPIO_PMIC_SOURCE_PWREN, asserted ? 1 : 0);
}
/**
* Power on or off the VCC_5V
*
* @param asserted Assert (=1) or deassert (=0) the signal.
*/
static void set_5v_power(int asserted)
{
/* Signal is active-high */
gpio_set_level(GPIO_5V_DRV, asserted ? 1 : 0);
}
/**
* Check for some event triggering the shutdown.
*
@@ -400,6 +411,7 @@ static void power_on(void)
/* Call hooks now that AP is running */
hook_notify(HOOK_CHIPSET_STARTUP);
set_5v_power(1);
CPRINTS("AP running ...");
}
@@ -439,6 +451,7 @@ static int wait_for_power_button_release(unsigned int timeout_us)
*/
static void power_off(void)
{
set_5v_power(0);
/* Call hooks before we drop power rails */
hook_notify(HOOK_CHIPSET_SHUTDOWN);
/* switch off all rails */