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/*
* arch/arm/mach-tegra/power.h
*
* Declarations for power state transition code
*
* Copyright (c) 2010, NVIDIA Corporation.
*
* 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.
*
* 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __MACH_TEGRA_POWER_H
#define __MACH_TEGRA_POWER_H
#include <asm/page.h>
#define TEGRA_POWER_SDRAM_SELFREFRESH 0x400 /* SDRAM is in self-refresh */
#define TEGRA_POWER_PWRREQ_POLARITY 0x1 /* core power request polarity */
#define TEGRA_POWER_PWRREQ_OE 0x2 /* core power request enable */
#define TEGRA_POWER_SYSCLK_POLARITY 0x4 /* sys clk polarity */
#define TEGRA_POWER_SYSCLK_OE 0x8 /* system clock enable */
#define TEGRA_POWER_PWRGATE_DIS 0x10 /* power gate disabled */
#define TEGRA_POWER_EFFECT_LP0 0x40 /* enter LP0 when CPU pwr gated */
#define TEGRA_POWER_CPU_PWRREQ_POLARITY 0x80 /* CPU power request polarity */
#define TEGRA_POWER_CPU_PWRREQ_OE 0x100 /* CPU power request enable */
#define TEGRA_POWER_PMC_SHIFT 8
#define TEGRA_POWER_PMC_MASK 0x1ff
/* CPU Context area (1KB per CPU) */
#define CONTEXT_SIZE_BYTES_SHIFT 10
#define CONTEXT_SIZE_BYTES (1<<CONTEXT_SIZE_BYTES_SHIFT)
/* layout of IRAM used for LP1 save & restore */
#define TEGRA_IRAM_CODE_AREA TEGRA_IRAM_BASE + SZ_4K
#define TEGRA_IRAM_CODE_SIZE SZ_4K
#ifndef __ASSEMBLY__
extern void *tegra_context_area;
u64 tegra_rtc_read_ms(void);
void tegra_lp2_set_trigger(unsigned long cycles);
unsigned long tegra_lp2_timer_remain(void);
void __cortex_a9_save(unsigned int mode);
void __cortex_a9_restore(void);
void __shut_off_mmu(void);
void tegra_lp2_startup(void);
unsigned int tegra_suspend_lp2(unsigned int us);
void tegra_hotplug_startup(void);
#endif
#endif
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