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dab403ef JL |
1 | /* |
2 | * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms and conditions of the GNU General Public License, | |
6 | * version 2, as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
11 | * more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | */ | |
16 | ||
17 | #ifndef __MACH_TEGRA_CPU_CAR_H | |
18 | #define __MACH_TEGRA_CPU_CAR_H | |
19 | ||
20 | /* | |
21 | * Tegra CPU clock and reset control ops | |
22 | * | |
23 | * wait_for_reset: | |
24 | * keep waiting until the CPU in reset state | |
25 | * put_in_reset: | |
26 | * put the CPU in reset state | |
27 | * out_of_reset: | |
28 | * release the CPU from reset state | |
29 | * enable_clock: | |
30 | * CPU clock un-gate | |
31 | * disable_clock: | |
32 | * CPU clock gate | |
33 | */ | |
34 | struct tegra_cpu_car_ops { | |
35 | void (*wait_for_reset)(u32 cpu); | |
36 | void (*put_in_reset)(u32 cpu); | |
37 | void (*out_of_reset)(u32 cpu); | |
38 | void (*enable_clock)(u32 cpu); | |
39 | void (*disable_clock)(u32 cpu); | |
40 | }; | |
41 | ||
42 | extern struct tegra_cpu_car_ops *tegra_cpu_car_ops; | |
43 | ||
44 | static inline void tegra_wait_cpu_in_reset(u32 cpu) | |
45 | { | |
46 | if (WARN_ON(!tegra_cpu_car_ops->wait_for_reset)) | |
47 | return; | |
48 | ||
49 | tegra_cpu_car_ops->wait_for_reset(cpu); | |
50 | } | |
51 | ||
52 | static inline void tegra_put_cpu_in_reset(u32 cpu) | |
53 | { | |
54 | if (WARN_ON(!tegra_cpu_car_ops->put_in_reset)) | |
55 | return; | |
56 | ||
57 | tegra_cpu_car_ops->put_in_reset(cpu); | |
58 | } | |
59 | ||
60 | static inline void tegra_cpu_out_of_reset(u32 cpu) | |
61 | { | |
62 | if (WARN_ON(!tegra_cpu_car_ops->out_of_reset)) | |
63 | return; | |
64 | ||
65 | tegra_cpu_car_ops->out_of_reset(cpu); | |
66 | } | |
67 | ||
68 | static inline void tegra_enable_cpu_clock(u32 cpu) | |
69 | { | |
70 | if (WARN_ON(!tegra_cpu_car_ops->enable_clock)) | |
71 | return; | |
72 | ||
73 | tegra_cpu_car_ops->enable_clock(cpu); | |
74 | } | |
75 | ||
76 | static inline void tegra_disable_cpu_clock(u32 cpu) | |
77 | { | |
78 | if (WARN_ON(!tegra_cpu_car_ops->disable_clock)) | |
79 | return; | |
80 | ||
81 | tegra_cpu_car_ops->disable_clock(cpu); | |
82 | } | |
83 | ||
84 | void tegra20_cpu_car_ops_init(void); | |
85 | void tegra30_cpu_car_ops_init(void); | |
86 | ||
87 | #endif /* __MACH_TEGRA_CPU_CAR_H */ |