xref: /openbmc/linux/arch/arm/mach-tegra/reset.h (revision cc8bbe1a)
1 /*
2  * arch/arm/mach-tegra/reset.h
3  *
4  * CPU reset dispatcher.
5  *
6  * Copyright (c) 2011, NVIDIA Corporation.
7  *
8  * This software is licensed under the terms of the GNU General Public
9  * License version 2, as published by the Free Software Foundation, and
10  * may be copied, distributed, and modified under those terms.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  */
18 
19 #ifndef __MACH_TEGRA_RESET_H
20 #define __MACH_TEGRA_RESET_H
21 
22 #define TEGRA_RESET_MASK_PRESENT	0
23 #define TEGRA_RESET_MASK_LP1		1
24 #define TEGRA_RESET_MASK_LP2		2
25 #define TEGRA_RESET_STARTUP_SECONDARY	3
26 #define TEGRA_RESET_STARTUP_LP2		4
27 #define TEGRA_RESET_STARTUP_LP1		5
28 #define TEGRA_RESET_DATA_SIZE		6
29 
30 #ifndef __ASSEMBLY__
31 
32 #include "irammap.h"
33 
34 extern unsigned long __tegra_cpu_reset_handler_data[TEGRA_RESET_DATA_SIZE];
35 
36 void __tegra_cpu_reset_handler_start(void);
37 void __tegra_cpu_reset_handler(void);
38 void __tegra20_cpu1_resettable_status_offset(void);
39 void __tegra_cpu_reset_handler_end(void);
40 
41 #ifdef CONFIG_PM_SLEEP
42 #define tegra_cpu_lp1_mask \
43 	(IO_ADDRESS(TEGRA_IRAM_BASE + TEGRA_IRAM_RESET_HANDLER_OFFSET + \
44 	((u32)&__tegra_cpu_reset_handler_data[TEGRA_RESET_MASK_LP1] - \
45 	 (u32)__tegra_cpu_reset_handler_start)))
46 #define tegra_cpu_lp2_mask \
47 	(IO_ADDRESS(TEGRA_IRAM_BASE + TEGRA_IRAM_RESET_HANDLER_OFFSET + \
48 	((u32)&__tegra_cpu_reset_handler_data[TEGRA_RESET_MASK_LP2] - \
49 	 (u32)__tegra_cpu_reset_handler_start)))
50 #define tegra20_cpu1_resettable_status \
51 	(IO_ADDRESS(TEGRA_IRAM_BASE + TEGRA_IRAM_RESET_HANDLER_OFFSET + \
52 	 (u32)__tegra20_cpu1_resettable_status_offset))
53 #endif
54 
55 #define tegra_cpu_reset_handler_offset \
56 		((u32)__tegra_cpu_reset_handler - \
57 		 (u32)__tegra_cpu_reset_handler_start)
58 
59 #define tegra_cpu_reset_handler_size \
60 		(__tegra_cpu_reset_handler_end - \
61 		 __tegra_cpu_reset_handler_start)
62 
63 void __init tegra_cpu_reset_handler_init(void);
64 
65 #endif
66 #endif
67