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/*
* This file is part of the coreboot project.
*
* Copyright 2019 Google LLC
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <delay.h>
#include <gpio.h>
#include <baseboard/variants.h>
#include <soc/gpio.h>
void variant_ramstage_init(void)
{
/*
* Enable power to FPMCU, wait for power rail to stabilize,
* and then deassert FPMCU reset.
* Waiting for the power rail to stabilize can take a while,
* a minimum of 400us on Kohaku.
*/
gpio_output(GPP_C11, 1);
mdelay(1);
gpio_output(GPP_A12, 1);
}
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