76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* TI pm33xx platform data
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*
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* Copyright (C) 2016-2018 Texas Instruments, Inc.
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* Dave Gerlach <d-gerlach@ti.com>
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*/
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#ifndef _LINUX_PLATFORM_DATA_PM33XX_H
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#define _LINUX_PLATFORM_DATA_PM33XX_H
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#include <linux/kbuild.h>
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#include <linux/types.h>
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/*
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* WFI Flags for sleep code control
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*
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* These flags allow PM code to exclude certain operations from happening
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* in the low level ASM code found in sleep33xx.S and sleep43xx.S
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*
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* WFI_FLAG_FLUSH_CACHE: Flush the ARM caches and disable caching. Only
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* needed when MPU will lose context.
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* WFI_FLAG_SELF_REFRESH: Let EMIF place DDR memory into self-refresh and
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* disable EMIF.
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* WFI_FLAG_SAVE_EMIF: Save context of all EMIF registers and restore in
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* resume path. Only needed if PER domain loses context
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* and must also have WFI_FLAG_SELF_REFRESH set.
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* WFI_FLAG_WAKE_M3: Disable MPU clock or clockdomain to cause wkup_m3 to
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* execute when WFI instruction executes.
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* WFI_FLAG_RTC_ONLY: Configure the RTC to enter RTC+DDR mode.
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*/
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#define WFI_FLAG_FLUSH_CACHE BIT(0)
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#define WFI_FLAG_SELF_REFRESH BIT(1)
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#define WFI_FLAG_SAVE_EMIF BIT(2)
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#define WFI_FLAG_WAKE_M3 BIT(3)
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#define WFI_FLAG_RTC_ONLY BIT(4)
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#ifndef __ASSEMBLER__
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struct am33xx_pm_sram_addr {
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void (*do_wfi)(void);
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unsigned long *do_wfi_sz;
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unsigned long *resume_offset;
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unsigned long *emif_sram_table;
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unsigned long *ro_sram_data;
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unsigned long resume_address;
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};
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struct am33xx_pm_platform_data {
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int (*init)(int (*idle)(u32 wfi_flags));
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int (*deinit)(void);
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int (*soc_suspend)(unsigned int state, int (*fn)(unsigned long),
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unsigned long args);
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int (*cpu_suspend)(int (*fn)(unsigned long), unsigned long args);
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void (*begin_suspend)(void);
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void (*finish_suspend)(void);
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struct am33xx_pm_sram_addr *(*get_sram_addrs)(void);
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void (*save_context)(void);
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void (*restore_context)(void);
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int (*check_off_mode_enable)(void);
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};
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struct am33xx_pm_sram_data {
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u32 wfi_flags;
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u32 l2_aux_ctrl_val;
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u32 l2_prefetch_ctrl_val;
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} __packed __aligned(8);
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struct am33xx_pm_ro_sram_data {
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u32 amx3_pm_sram_data_virt;
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u32 amx3_pm_sram_data_phys;
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void __iomem *rtc_base_virt;
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} __packed __aligned(8);
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#endif /* __ASSEMBLER__ */
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#endif /* _LINUX_PLATFORM_DATA_PM33XX_H */
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