1 /*
2 * TI Wakeup M3 for AMx3 SoCs Power Management Routines
3 *
4 * Copyright (C) 2015 Texas Instruments Incorporated - http://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 */
17 #ifndef _LINUX_WKUP_M3_IPC_H
18 #define _LINUX_WKUP_M3_IPC_H
20 #define WKUP_M3_DEEPSLEEP 1
21 #define WKUP_M3_STANDBY 2
22 #define WKUP_M3_IDLE 3
24 #include <linux/mailbox_client.h>
26 struct wkup_m3_ipc_ops;
28 struct wkup_m3_ipc {
29 struct rproc *rproc;
31 void __iomem *ipc_mem_base;
32 struct device *dev;
34 int mem_type;
35 unsigned long resume_addr;
36 int vtt_conf;
37 int isolation_conf;
38 int state;
40 unsigned long volt_scale_offsets;
41 const char *sd_fw_name;
43 struct completion sync_complete;
44 struct mbox_client mbox_client;
45 struct mbox_chan *mbox;
47 struct wkup_m3_ipc_ops *ops;
48 int is_rtc_only;
49 };
51 struct wkup_m3_wakeup_src {
52 int irq_nr;
53 char src[10];
54 };
56 struct wkup_m3_scale_data_header {
57 u16 magic;
58 u8 sleep_offset;
59 u8 wake_offset;
60 } __packed;
62 struct wkup_m3_ipc_ops {
63 void (*set_mem_type)(struct wkup_m3_ipc *m3_ipc, int mem_type);
64 void (*set_resume_address)(struct wkup_m3_ipc *m3_ipc, void *addr);
65 int (*prepare_low_power)(struct wkup_m3_ipc *m3_ipc, int state);
66 int (*finish_low_power)(struct wkup_m3_ipc *m3_ipc);
67 int (*request_pm_status)(struct wkup_m3_ipc *m3_ipc);
68 const char *(*request_wake_src)(struct wkup_m3_ipc *m3_ipc);
69 void (*set_rtc_only)(struct wkup_m3_ipc *m3_ipc);
70 };
72 struct wkup_m3_ipc *wkup_m3_ipc_get(void);
73 void wkup_m3_ipc_put(struct wkup_m3_ipc *m3_ipc);
74 void wkup_m3_set_rtc_only_mode(void);
75 #endif /* _LINUX_WKUP_M3_IPC_H */