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/*
* TI pm33xx platform data
*
* Copyright (C) 2016 Texas Instruments, Inc.
*
* Dave Gerlach <d-gerlach@ti.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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.
*/
#ifndef _LINUX_PLATFORM_DATA_PM33XX_H
#define _LINUX_PLATFORM_DATA_PM33XX_H
/*
* WFI Flags for sleep code control
*
* These flags allow PM code to exclude certain operations from happening
* in the low level ASM code found in sleep33xx.S and sleep43xx.S
*
* WFI_FLAG_FLUSH_CACHE: Flush the ARM caches and disable caching. Only
* needed when MPU will lose context.
* WFI_FLAG_SELF_REFRESH: Let EMIF place DDR memory into self-refresh and
* disable EMIF.
* WFI_FLAG_SAVE_EMIF: Save context of all EMIF registers and restore in
* resume path. Only needed if PER domain loses context
* and must also have WFI_FLAG_SELF_REFRESH set.
* WFI_FLAG_WAKE_M3: Disable MPU clock or clockdomain to cause wkup_m3 to
* execute when WFI instruction executes.
* WFI_FLAG_RTC_ONLY: Configure the RTC to enter RTC+DDR mode.
*/
#define WFI_FLAG_FLUSH_CACHE BIT(0)
#define WFI_FLAG_SELF_REFRESH BIT(1)
#define WFI_FLAG_SAVE_EMIF BIT(2)
#define WFI_FLAG_WAKE_M3 BIT(3)
#define WFI_FLAG_RTC_ONLY BIT(4)
#ifndef __ASSEMBLER__
struct am33xx_pm_sram_addr {
void (*do_wfi)(void);
unsigned long *do_wfi_sz;
unsigned long *resume_offset;
unsigned long *emif_sram_table;
unsigned long *rtc_base_virt;
phys_addr_t rtc_resume_phys_addr;
};
struct am33xx_pm_platform_data {
int (*init)(int (*idle)(u32 wfi_flags));
int (*deinit)(void);
int (*soc_suspend)(unsigned int state, int (*fn)(unsigned long),
unsigned long args);
int (*cpu_suspend)(int (*fn)(unsigned long), unsigned long args);
struct am33xx_pm_sram_addr *pm_sram_addr;
void (*save_context)(void);
void (*restore_context)(void);
void (*prepare_rtc_suspend)(void);
void (*prepare_rtc_resume)(void);
int (*check_off_mode_enable)(void);
void __iomem *(*get_rtc_base_addr)(void);
};
#endif /* __ASSEMBLER__ */
#endif /* _LINUX_PLATFORM_DATA_PM33XX_H */
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