03784fa97a
This patch adds a new static assertion macro that can be used to check the offsets in structures that overlay register sets at compile time. It uses the _Static_assert() declaration from the new ISO C11 standard, which is supported (even without -std=c11) by GCC after version 4.6. (There is supposedly also support in clang, although I haven't tried it... let's deal with compiler issues when/if they turn up.) I've added it to all structures for our current ARM SoCs for now, and I think every new register overlay we add going forward should use them (at least for the last member, but feel free to add more if you think it's useful). Change-Id: If32510e7049739ad05618d363a854dc372d64386 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/179412 Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Stefan Reinauer <reinauer@chromium.org> (cherry picked from commit cef5fa13c31375a316ca4556c0039b17c8ea7900) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6905 Tested-by: build bot (Jenkins)
101 lines
3.0 KiB
C
101 lines
3.0 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2012 Samsung Electronics
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* Register map for Exynos5 PMU */
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#ifndef CPU_SAMSUNG_EXYNOS5250_POWER_H
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#define CPU_SAMSUNG_EXYNOS5250_POWER_H
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#include "cpu.h"
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/* Enable HW thermal trip with PS_HOLD_CONTROL register ENABLE_HW_TRIP bit */
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void power_enable_hw_thermal_trip(void);
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#define MIPI_PHY1_CONTROL_ENABLE (1 << 0)
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#define MIPI_PHY1_CONTROL_M_RESETN (1 << 2)
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#define POWER_USB_PHY_CTRL_EN (1 << 0)
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#define POWER_PS_HOLD_CONTROL_DATA_HIGH (1 << 8)
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#define POWER_ENABLE_HW_TRIP (1UL << 31)
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#define DPTX_PHY_ENABLE (1 << 0)
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/* PMU_DEBUG bits [12:8] = 0x1000 selects XXTI clock source */
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#define PMU_DEBUG_XXTI 0x1000
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/* Mask bit[12:8] for xxti clock selection */
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#define PMU_DEBUG_CLKOUT_SEL_MASK 0x1f00
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/* Power Management Unit register map */
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struct exynos5_power {
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/* Add registers as and when required */
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uint32_t om_stat; /* 0x0000 */
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uint8_t reserved1[0x03fc];
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uint32_t sw_reset; /* 0x0400 */
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uint8_t reserved2[0x0300];
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uint32_t usb_drd_phy_ctrl; /* 0x0704 */
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uint32_t usb_host_phy_ctrl; /* 0x0708 */
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uint8_t reserved3[0x8];
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uint32_t mipi_phy1_control; /* 0x0714 */
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uint8_t reserved4[0x8];
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uint32_t dptx_phy_control; /* 0x0720 */
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uint8_t reserved5[0xdc];
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uint32_t inform0; /* 0x0800 */
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uint32_t inform1; /* 0x0804 */
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uint8_t reserved6[0x1f8];
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uint32_t pmu_debug; /* 0x0a00 */
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uint8_t reserved7[0x2724];
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uint32_t padret_uart_opt; /* 0x3128 */
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uint8_t reserved8[0x1e0];
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uint32_t ps_hold_ctrl; /* 0x330c */
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} __attribute__ ((__packed__));
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check_member(exynos5_power, ps_hold_ctrl, 0x330c);
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static struct exynos5_power * const exynos_power = (void*)EXYNOS5_POWER_BASE;
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/**
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* Perform a software reset.
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*/
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void power_reset(void);
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/**
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* Power off the system; it should never return.
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*/
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void power_shutdown(void);
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/* Enable DPTX PHY */
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void power_enable_dp_phy(void);
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/* Initialize the pmic voltages to power up the system */
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int power_init(void);
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/* Read the reset status. */
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uint32_t power_read_reset_status(void);
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/* Read the resume function and call it. */
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void power_exit_wakeup(void);
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/* pmu debug is used for xclkout, enable xclkout with source as XXTI */
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void power_enable_xclkout(void);
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/* Release UART retention on resume (only for debugging, may conflict with
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* kernel). */
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void power_release_uart_retention(void);
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#endif
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