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Diffstat (limited to 'src/soc/samsung/exynos5250/power.h')
-rw-r--r-- | src/soc/samsung/exynos5250/power.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/src/soc/samsung/exynos5250/power.h b/src/soc/samsung/exynos5250/power.h new file mode 100644 index 0000000..5ea73c7 --- /dev/null +++ b/src/soc/samsung/exynos5250/power.h @@ -0,0 +1,99 @@ +/* + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Register map for Exynos5 PMU */ + +#ifndef CPU_SAMSUNG_EXYNOS5250_POWER_H +#define CPU_SAMSUNG_EXYNOS5250_POWER_H + +#include "cpu.h" + +/* Enable HW thermal trip with PS_HOLD_CONTROL register ENABLE_HW_TRIP bit */ +void power_enable_hw_thermal_trip(void); + +#define MIPI_PHY1_CONTROL_ENABLE (1 << 0) +#define MIPI_PHY1_CONTROL_M_RESETN (1 << 2) + +#define POWER_USB_PHY_CTRL_EN (1 << 0) +#define POWER_PS_HOLD_CONTROL_DATA_HIGH (1 << 8) +#define POWER_ENABLE_HW_TRIP (1UL << 31) + +#define DPTX_PHY_ENABLE (1 << 0) + +/* PMU_DEBUG bits [12:8] = 0x1000 selects XXTI clock source */ +#define PMU_DEBUG_XXTI 0x1000 +/* Mask bit[12:8] for xxti clock selection */ +#define PMU_DEBUG_CLKOUT_SEL_MASK 0x1f00 + +/* Power Management Unit register map */ +struct exynos5_power { + /* Add registers as and when required */ + uint32_t om_stat; /* 0x0000 */ + uint8_t reserved1[0x03fc]; + uint32_t sw_reset; /* 0x0400 */ + uint8_t reserved2[0x0300]; + uint32_t usb_drd_phy_ctrl; /* 0x0704 */ + uint32_t usb_host_phy_ctrl; /* 0x0708 */ + uint8_t reserved3[0x8]; + uint32_t mipi_phy1_control; /* 0x0714 */ + uint8_t reserved4[0x8]; + uint32_t dptx_phy_control; /* 0x0720 */ + uint8_t reserved5[0xdc]; + uint32_t inform0; /* 0x0800 */ + uint32_t inform1; /* 0x0804 */ + uint8_t reserved6[0x1f8]; + uint32_t pmu_debug; /* 0x0A00*/ + uint8_t reserved7[0x2728]; + uint32_t padret_uart_opt; /* 0x3128 */ + uint8_t reserved8[0x1e0]; + uint32_t ps_hold_ctrl; /* 0x330c */ +} __attribute__ ((__packed__)); + +static struct exynos5_power * const exynos_power = (void*)EXYNOS5_POWER_BASE; + +/** + * Perform a software reset. + */ +void power_reset(void); + +/** + * Power off the system; it should never return. + */ +void power_shutdown(void); + +/* Enable DPTX PHY */ +void power_enable_dp_phy(void); + +/* Initialize the pmic voltages to power up the system */ +int power_init(void); + +/* Read the reset status. */ +uint32_t power_read_reset_status(void); + +/* Read the resume function and call it. */ +void power_exit_wakeup(void); + +/* pmu debug is used for xclkout, enable xclkout with source as XXTI */ +void power_enable_xclkout(void); + +/* Release UART retention on resume (only for debugging, may conflict with + * kernel). */ +void power_release_uart_retention(void); + +#endif |