1 /* 2 * TI Wakeup M3 for AMx3 SoCs Power Management Routines 3 * 4 * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/ 5 * Dave Gerlach <d-gerlach@ti.com> 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License as 9 * published by the Free Software Foundation version 2. 10 * 11 * This program is distributed "as is" WITHOUT ANY WARRANTY of any 12 * kind, whether express or implied; without even the implied warranty 13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 */ 16 17 #ifndef _LINUX_WKUP_M3_IPC_H 18 #define _LINUX_WKUP_M3_IPC_H 19 20 #define WKUP_M3_DEEPSLEEP 1 21 #define WKUP_M3_STANDBY 2 22 #define WKUP_M3_IDLE 3 23 24 #include <linux/mailbox_client.h> 25 26 struct wkup_m3_ipc_ops; 27 28 struct wkup_m3_ipc { 29 struct rproc *rproc; 30 31 void __iomem *ipc_mem_base; 32 struct device *dev; 33 34 int mem_type; 35 unsigned long resume_addr; 36 int vtt_conf; 37 int isolation_conf; 38 int state; 39 u32 halt; 40 41 unsigned long volt_scale_offsets; 42 const char *sd_fw_name; 43 44 struct completion sync_complete; 45 struct mbox_client mbox_client; 46 struct mbox_chan *mbox; 47 48 struct wkup_m3_ipc_ops *ops; 49 int is_rtc_only; 50 struct dentry *dbg_path; 51 }; 52 53 struct wkup_m3_wakeup_src { 54 int irq_nr; 55 char src[10]; 56 }; 57 58 struct wkup_m3_scale_data_header { 59 u16 magic; 60 u8 sleep_offset; 61 u8 wake_offset; 62 } __packed; 63 64 struct wkup_m3_ipc_ops { 65 void (*set_mem_type)(struct wkup_m3_ipc *m3_ipc, int mem_type); 66 void (*set_resume_address)(struct wkup_m3_ipc *m3_ipc, void *addr); 67 int (*prepare_low_power)(struct wkup_m3_ipc *m3_ipc, int state); 68 int (*finish_low_power)(struct wkup_m3_ipc *m3_ipc); 69 int (*request_pm_status)(struct wkup_m3_ipc *m3_ipc); 70 const char *(*request_wake_src)(struct wkup_m3_ipc *m3_ipc); 71 void (*set_rtc_only)(struct wkup_m3_ipc *m3_ipc); 72 }; 73 74 struct wkup_m3_ipc *wkup_m3_ipc_get(void); 75 void wkup_m3_ipc_put(struct wkup_m3_ipc *m3_ipc); 76 void wkup_m3_set_rtc_only_mode(void); 77 #endif /* _LINUX_WKUP_M3_IPC_H */ 78