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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2017 Intel Corp.
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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 <cbmem.h>
#include <console/console.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <intelblocks/lpc_lib.h>
#include <intelblocks/rtc.h>
#include <pc80/mc146818rtc.h>
#include <soc/gpio.h>
#include <soc/pcr_ids.h>
#include <soc/pm.h>
#include <vboot/vbnv.h>
#include "chip.h"
static const struct lpc_mmio_range apl_lpc_fixed_mmio_ranges[] = {
{ 0xfed40000, 0x8000 },
{ 0xfedc0000, 0x4000 },
{ 0xfed20800, 16 },
{ 0xfed20880, 8 },
{ 0xfed208e0, 16 },
{ 0xfed208f0, 8 },
{ 0xfed30800, 16 },
{ 0xfed30880, 8 },
{ 0xfed308e0, 16 },
{ 0xfed308f0, 8 },
{ 0, 0 }
};
const struct lpc_mmio_range *soc_get_fixed_mmio_ranges(void)
{
return apl_lpc_fixed_mmio_ranges;
}
static const struct pad_config lpc_gpios[] = {
#if IS_ENABLED(CONFIG_SOC_INTEL_GLK)
PAD_CFG_NF(GPIO_147, UP_20K, DEEP, NF1), /* LPC_ILB_SERIRQ */
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_148, UP_20K, DEEP, NF1, HIZCRx1,
DISPUPD), /* LPC_CLKOUT0 */
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_149, UP_20K, DEEP, NF1, HIZCRx1,
DISPUPD), /* LPC_CLKOUT1 */
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_150, UP_20K, DEEP, NF1, HIZCRx1,
DISPUPD), /* LPC_AD0 */
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_151, UP_20K, DEEP, NF1, HIZCRx1,
DISPUPD), /* LPC_AD1 */
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_152, UP_20K, DEEP, NF1, HIZCRx1,
DISPUPD), /* LPC_AD2 */
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_153, UP_20K, DEEP, NF1, HIZCRx1,
DISPUPD), /* LPC_AD3 */
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_154, UP_20K, DEEP, NF1, HIZCRx1,
DISPUPD), /* LPC_CLKRUNB */
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_155, UP_20K, DEEP, NF1, HIZCRx1,
DISPUPD), /* LPC_FRAMEB*/
#else
PAD_CFG_NF(LPC_ILB_SERIRQ, UP_20K, DEEP, NF1),
PAD_CFG_NF(LPC_CLKRUNB, UP_20K, DEEP, NF1),
PAD_CFG_NF(LPC_AD0, UP_20K, DEEP, NF1),
PAD_CFG_NF(LPC_AD1, UP_20K, DEEP, NF1),
PAD_CFG_NF(LPC_AD2, UP_20K, DEEP, NF1),
PAD_CFG_NF(LPC_AD3, UP_20K, DEEP, NF1),
PAD_CFG_NF(LPC_FRAMEB, NATIVE, DEEP, NF1),
PAD_CFG_NF(LPC_CLKOUT0, UP_20K, DEEP, NF1),
PAD_CFG_NF(LPC_CLKOUT1, UP_20K, DEEP, NF1)
#endif
};
void lpc_configure_pads(void)
{
gpio_configure_pads(lpc_gpios, ARRAY_SIZE(lpc_gpios));
}
static void rtc_init(void)
{
int rtc_fail;
const struct chipset_power_state *ps = cbmem_find(CBMEM_ID_POWER_STATE);
if (!ps) {
printk(BIOS_ERR, "Could not find power state in cbmem, RTC init aborted\n");
return;
}
rtc_fail = !!(ps->gen_pmcon1 & RPS);
/* Ensure the date is set including century byte. */
cmos_check_update_date();
if (IS_ENABLED(CONFIG_VBOOT_VBNV_CMOS))
init_vbnv_cmos(rtc_fail);
else
cmos_init(rtc_fail);
}
void lpc_init(struct device *dev)
{
const struct soc_intel_apollolake_config *cfg;
cfg = dev->chip_info;
if (!cfg) {
printk(BIOS_ERR, "BUG! Could not find SOC devicetree config\n");
return;
}
/* Set LPC Serial IRQ mode */
lpc_set_serirq_mode(cfg->serirq_mode);
/* Initialize RTC */
rtc_init();
}
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