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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2012 Samsung Electronics
*
* 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.
*/
/* Power setup code for EXYNOS5 */
#include <device/mmio.h>
#include <halt.h>
#include <soc/dmc.h>
#include <soc/power.h>
#include <soc/setup.h>
/* Set the PS-Hold drive value */
static void ps_hold_setup(void)
{
/* Set PS-Hold high */
setbits32(&exynos_power->ps_hold_ctrl,
POWER_PS_HOLD_CONTROL_DATA_HIGH);
}
void power_reset(void)
{
/* Clear inform1 so there's no change we think we've got a wake reset */
exynos_power->inform1 = 0;
setbits32(&exynos_power->sw_reset, 1);
}
/* This function never returns */
void power_shutdown(void)
{
clrbits32(&exynos_power->ps_hold_ctrl,
POWER_PS_HOLD_CONTROL_DATA_HIGH);
halt();
}
void power_enable_dp_phy(void)
{
setbits32(&exynos_power->dptx_phy_control, EXYNOS_DP_PHY_ENABLE);
}
void power_enable_hw_thermal_trip(void)
{
/* Enable HW thermal trip */
setbits32(&exynos_power->ps_hold_ctrl, POWER_ENABLE_HW_TRIP);
}
uint32_t power_read_reset_status(void)
{
return exynos_power->inform1;
}
void power_exit_wakeup(void)
{
typedef void (*resume_func)(void);
((resume_func)exynos_power->inform0)();
}
int power_init(void)
{
ps_hold_setup();
return 0;
}
void power_enable_xclkout(void)
{
/* use xxti for xclk out */
clrsetbits32(&exynos_power->pmu_debug, PMU_DEBUG_CLKOUT_SEL_MASK,
PMU_DEBUG_XXTI);
}
void power_release_uart_retention(void)
{
write32(&exynos_power->padret_uart_opt, 1 << 28);
}
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