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/*
* This file is part of the coreboot project.
*
* Copyright 2018 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 <baseboard/gpio.h>
#include <baseboard/variants.h>
#include <boardid.h>
#include <gpio.h>
#include <soc/gpio.h>
#include <ec/google/chromeec/ec.h>
#include <console/console.h>
#define SKU_UNKNOWN 0xFFFFFFFF
static const struct pad_config default_override_table[] = {
PAD_NC(GPIO_52, UP_20K),
PAD_NC(GPIO_53, UP_20K),
PAD_NC(GPIO_67, UP_20K),
PAD_NC(GPIO_117, UP_20K),
PAD_NC(GPIO_143, UP_20K),
/* EN_PP3300_TOUCHSCREEN */
PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 0, DEEP, NONE, Tx0RxDCRx0,
DISPUPD),
PAD_NC(GPIO_161, DN_20K),
/* EN_PP3300_WLAN_L */
PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_178, 0, DEEP, NONE, Tx0RxDCRx0, DISPUPD),
PAD_NC(GPIO_213, DN_20K),
PAD_NC(GPIO_214, DN_20K),
};
static const struct pad_config sku1_default_override_table[] = {
/* disable I2C7 SCL and SDA */
PAD_NC(GPIO_114, UP_20K), /* LPSS_I2C7_SDA */
PAD_NC(GPIO_115, UP_20K), /* LPSS_I2C7_SCL */
PAD_NC(GPIO_52, UP_20K),
PAD_NC(GPIO_53, UP_20K),
PAD_NC(GPIO_67, UP_20K),
PAD_NC(GPIO_117, UP_20K),
PAD_NC(GPIO_143, UP_20K),
/* EN_PP3300_TOUCHSCREEN */
PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 0, DEEP, NONE, Tx0RxDCRx0,
DISPUPD),
PAD_NC(GPIO_161, DN_20K),
/* EN_PP3300_WLAN_L */
PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_178, 0, DEEP, NONE, Tx0RxDCRx0,
DISPUPD),
PAD_NC(GPIO_213, DN_20K),
PAD_NC(GPIO_214, DN_20K),
};
static const struct pad_config bid0_override_table[] = {
PAD_NC(GPIO_52, UP_20K),
PAD_NC(GPIO_53, UP_20K),
PAD_NC(GPIO_67, UP_20K),
PAD_NC(GPIO_117, UP_20K),
PAD_NC(GPIO_143, UP_20K),
PAD_NC(GPIO_161, DN_20K),
PAD_NC(GPIO_214, DN_20K),
};
const struct pad_config *variant_override_gpio_table(size_t *num)
{
const struct pad_config *c;
uint32_t sku_id = SKU_UNKNOWN;
switch (board_id()) {
case 0:
case UNDEFINED_STRAPPING_ID:
c = bid0_override_table;
*num = ARRAY_SIZE(bid0_override_table);
break;
default:
google_chromeec_cbi_get_sku_id(&sku_id);
if (sku_id == 1) {
c = sku1_default_override_table;
*num = ARRAY_SIZE(sku1_default_override_table);
} else {
c = default_override_table;
*num = ARRAY_SIZE(default_override_table);
}
}
return c;
}
/* GPIOs needed prior to ramstage. */
static const struct pad_config early_gpio_table[] = {
/* PCH_WP_OD */
PAD_CFG_GPI(GPIO_190, NONE, DEEP),
/* H1_PCH_INT_ODL */
PAD_CFG_GPI_APIC_IOS(GPIO_63, NONE, DEEP, LEVEL, INVERT, TxDRxE,
DISPUPD),
/* H1_SLAVE_SPI_CLK_R */
PAD_CFG_NF(GPIO_79, NONE, DEEP, NF1),
/* H1_SLAVE_SPI_CS_L_R */
PAD_CFG_NF(GPIO_80, NONE, DEEP, NF1),
/* H1_SLAVE_SPI_MISO */
PAD_CFG_NF(GPIO_82, NONE, DEEP, NF1),
/* H1_SLAVE_SPI_MOSI_R */
PAD_CFG_NF(GPIO_83, NONE, DEEP, NF1),
/* WLAN_PE_RST */
PAD_CFG_GPO(GPIO_164, 0, DEEP),
/*
* ESPI_IO1 acts as ALERT# (which is open-drain) and requies a weak
* pull-up for proper operation. Since there is no external pull present
* on this platform, configure an internal weak pull-up.
*/
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_151, UP_20K, DEEP, NF2, HIZCRx1,
ENPU),
};
const struct pad_config *variant_early_gpio_table(size_t *num)
{
/*
* This is a hack to configure EN_PP3300_WLAN based on board id. Once
* board id 0 is deprecated, we can get rid of this.
*/
uint32_t bid = board_id();
if (bid == UNDEFINED_STRAPPING_ID || bid < 1)
gpio_output(GPIO_178, 1);
else
gpio_output(GPIO_178, 0);
*num = ARRAY_SIZE(early_gpio_table);
return early_gpio_table;
}
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