| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * TI pm33xx platform data |
| * |
| * Copyright (C) 2016-2018 Texas Instruments, Inc. |
| * Dave Gerlach <d-gerlach@ti.com> |
| */ |
| |
| #ifndef _LINUX_PLATFORM_DATA_PM33XX_H |
| #define _LINUX_PLATFORM_DATA_PM33XX_H |
| |
| #include <linux/kbuild.h> |
| #include <linux/types.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 *ro_sram_data; |
| unsigned long resume_address; |
| }; |
| |
| 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); |
| void (*begin_suspend)(void); |
| void (*finish_suspend)(void); |
| struct am33xx_pm_sram_addr *(*get_sram_addrs)(void); |
| void (*save_context)(void); |
| void (*restore_context)(void); |
| int (*check_off_mode_enable)(void); |
| }; |
| |
| struct am33xx_pm_sram_data { |
| u32 wfi_flags; |
| u32 l2_aux_ctrl_val; |
| u32 l2_prefetch_ctrl_val; |
| } __packed __aligned(8); |
| |
| struct am33xx_pm_ro_sram_data { |
| u32 amx3_pm_sram_data_virt; |
| u32 amx3_pm_sram_data_phys; |
| void __iomem *rtc_base_virt; |
| } __packed __aligned(8); |
| |
| #endif /* __ASSEMBLER__ */ |
| #endif /* _LINUX_PLATFORM_DATA_PM33XX_H */ |