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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2015-2016 Advanced Micro Devices, Inc.
*
* 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 <amdblocks/agesawrapper.h>
#include <amdblocks/BiosCallOuts.h>
#include <soc/southbridge.h>
#include "gpio.h"
/*
* As a rule of thumb, GPIO pins used by coreboot should be initialized at
* bootblock while GPIO pins used only by the OS should be initialized at
* ramstage.
*/
static const struct soc_amd_gpio gpio_set_stage_reset[] = {
/* GFX presense detect */
PAD_GPI(GPIO_9, PULL_DOWN),
/* VDDP_VCTRL */
PAD_GPO(GPIO_40, HIGH),
/* PC SPKR */
PAD_NF(GPIO_91, SPKR, PULL_NONE),
};
static const struct soc_amd_gpio gpio_set_stage_ram[] = {
#if CONFIG(HAVE_S3_SUPPORT)
/* PCIE_WAKE - default, do not program */
/* DEVSLP1 */
PAD_NF(GPIO_70, DEVSLP1, PULL_UP),
/* WLAND */
PAD_SCI(GPIO_137, PULL_UP, LEVEL_LOW),
PAD_WAKE(GPIO_137, PULL_UP, LEVEL_LOW, S3),
#else
/* PCIE_WAKE */
PAD_GPI(GPIO_2, PULL_DOWN),
/* DEVSLP1 - default as GPIO, do not program */
/* WLAND - default as GPIO, do not program */
#endif /* HAVE_S3_SUPPORT */
/* BLINK - reselect GPIO OUTPUT HIGH to force BLINK */
PAD_GPO(GPIO_11, HIGH),
};
const struct soc_amd_gpio *early_gpio_table(size_t *size)
{
*size = ARRAY_SIZE(gpio_set_stage_reset);
return gpio_set_stage_reset;
}
const struct soc_amd_gpio *gpio_table(size_t *size)
{
*size = ARRAY_SIZE(gpio_set_stage_ram);
return gpio_set_stage_ram;
}
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