TrustedFirmware Git Browser
Code Review Sign In
review.trustedfirmware.org / hafnium / third_party / linux.git / 0e64123141f3854e695eb4924d82b52856691466 / . / drivers / soc / renesas / rcar-sysc.h
blob: 485520a5b295c13e58ab8fe1ac00708b77271fac [file] [log] [blame]
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0
2 *
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]3 * Renesas R-Car System Controller
4 *
5 * Copyright (C) 2016 Glider bvba
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]6 */
7#ifndef __SOC_RENESAS_RCAR_SYSC_H__
8#define __SOC_RENESAS_RCAR_SYSC_H__
9
10#include <linux/types.h>
11
12
13/*
14 * Power Domain flags
15 */
16#define PD_CPU BIT(0) /* Area contains main CPU core */
17#define PD_SCU BIT(1) /* Area contains SCU and L2 cache */
18#define PD_NO_CR BIT(2) /* Area lacks PWR{ON,OFF}CR registers */
19
20#define PD_CPU_CR PD_CPU /* CPU area has CR (R-Car H1) */
21#define PD_CPU_NOCR PD_CPU | PD_NO_CR /* CPU area lacks CR (R-Car Gen2/3) */
22#define PD_ALWAYS_ON PD_NO_CR /* Always-on area */
23
24
25/*
26 * Description of a Power Area
27 */
28
29struct rcar_sysc_area {
30 const char *name;
31 u16 chan_offs; /* Offset of PWRSR register for this area */
32 u8 chan_bit; /* Bit in PWR* (except for PWRUP in PWRSR) */
33 u8 isr_bit; /* Bit in SYSCI*R */
34 int parent; /* -1 if none */
35 unsigned int flags; /* See PD_* */
36};
37
38
39/*
40 * SoC-specific Power Area Description
41 */
42
43struct rcar_sysc_info {
44 int (*init)(void); /* Optional */
45 const struct rcar_sysc_area *areas;
46 unsigned int num_areas;
47};
48
49extern const struct rcar_sysc_info r8a7743_sysc_info;
50extern const struct rcar_sysc_info r8a7745_sysc_info;
51extern const struct rcar_sysc_info r8a77470_sysc_info;
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]52extern const struct rcar_sysc_info r8a774a1_sysc_info;
53extern const struct rcar_sysc_info r8a774c0_sysc_info;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]54extern const struct rcar_sysc_info r8a7779_sysc_info;
55extern const struct rcar_sysc_info r8a7790_sysc_info;
56extern const struct rcar_sysc_info r8a7791_sysc_info;
57extern const struct rcar_sysc_info r8a7792_sysc_info;
58extern const struct rcar_sysc_info r8a7794_sysc_info;
59extern const struct rcar_sysc_info r8a7795_sysc_info;
60extern const struct rcar_sysc_info r8a7796_sysc_info;
61extern const struct rcar_sysc_info r8a77965_sysc_info;
62extern const struct rcar_sysc_info r8a77970_sysc_info;
63extern const struct rcar_sysc_info r8a77980_sysc_info;
64extern const struct rcar_sysc_info r8a77990_sysc_info;
65extern const struct rcar_sysc_info r8a77995_sysc_info;
66
67
68 /*
69 * Helpers for fixing up power area tables depending on SoC revision
70 */
71
72extern void rcar_sysc_nullify(struct rcar_sysc_area *areas,
73 unsigned int num_areas, u8 id);
74
75#endif /* __SOC_RENESAS_RCAR_SYSC_H__ */