1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (c) 2010-2013, NVIDIA Corporation. All rights reserved.
4 */
5
6#ifndef __MACH_TEGRA_SLEEP_H
7#define __MACH_TEGRA_SLEEP_H
8
9#include "iomap.h"
10#include "irammap.h"
11
12#define TEGRA_ARM_PERIF_VIRT (TEGRA_ARM_PERIF_BASE - IO_CPU_PHYS \
13 + IO_CPU_VIRT)
14#define TEGRA_FLOW_CTRL_VIRT (TEGRA_FLOW_CTRL_BASE - IO_PPSB_PHYS \
15 + IO_PPSB_VIRT)
16#define TEGRA_CLK_RESET_VIRT (TEGRA_CLK_RESET_BASE - IO_PPSB_PHYS \
17 + IO_PPSB_VIRT)
18#define TEGRA_APB_MISC_VIRT (TEGRA_APB_MISC_BASE - IO_APB_PHYS \
19 + IO_APB_VIRT)
20#define TEGRA_PMC_VIRT (TEGRA_PMC_BASE - IO_APB_PHYS + IO_APB_VIRT)
21
22#define TEGRA_IRAM_RESET_BASE_VIRT (IO_IRAM_VIRT + \
23 TEGRA_IRAM_RESET_HANDLER_OFFSET)
24
25/* PMC_SCRATCH37-39 and 41 are used for tegra_pen_lock and idle */
26#define PMC_SCRATCH37 0x130
27#define PMC_SCRATCH38 0x134
28#define PMC_SCRATCH39 0x138
29#define PMC_SCRATCH41 0x140
30
31#ifdef CONFIG_ARCH_TEGRA_2x_SOC
32#define CPU_RESETTABLE 2
33#define CPU_RESETTABLE_SOON 1
34#define CPU_NOT_RESETTABLE 0
35#endif
36
37/* flag of tegra_disable_clean_inv_dcache to do LoUIS or all */
38#define TEGRA_FLUSH_CACHE_LOUIS 0
39#define TEGRA_FLUSH_CACHE_ALL 1
40
41#ifdef __ASSEMBLY__
42/* waits until the microsecond counter (base) is > rn */
43.macro wait_until, rn, base, tmp
44 add \rn, \rn, #1
451001: ldr \tmp, [\base]
46 cmp \tmp, \rn
47 bmi 1001b
48.endm
49
50/* returns the offset of the flow controller halt register for a cpu */
51.macro cpu_to_halt_reg rd, rcpu
52 cmp \rcpu, #0
53 subne \rd, \rcpu, #1
54 movne \rd, \rd, lsl #3
55 addne \rd, \rd, #0x14
56 moveq \rd, #0
57.endm
58
59/* returns the offset of the flow controller csr register for a cpu */
60.macro cpu_to_csr_reg rd, rcpu
61 cmp \rcpu, #0
62 subne \rd, \rcpu, #1
63 movne \rd, \rd, lsl #3
64 addne \rd, \rd, #0x18
65 moveq \rd, #8
66.endm
67
68/* returns the ID of the current processor */
69.macro cpu_id, rd
70 mrc p15, 0, \rd, c0, c0, 5
71 and \rd, \rd, #0xF
72.endm
73
74/* loads a 32-bit value into a register without a data access */
75.macro mov32, reg, val
76 movw \reg, #:lower16:\val
77 movt \reg, #:upper16:\val
78.endm
79
80/* Marco to check CPU part num */
81.macro check_cpu_part_num part_num, tmp1, tmp2
82 mrc p15, 0, \tmp1, c0, c0, 0
83 ubfx \tmp1, \tmp1, #4, #12
84 mov32 \tmp2, \part_num
85 cmp \tmp1, \tmp2
86.endm
87
88/* Macro to exit SMP coherency. */
89.macro exit_smp, tmp1, tmp2
90 mrc p15, 0, \tmp1, c1, c0, 1 @ ACTLR
91 bic \tmp1, \tmp1, #(1<<6) | (1<<0) @ clear ACTLR.SMP | ACTLR.FW
92 mcr p15, 0, \tmp1, c1, c0, 1 @ ACTLR
93 isb
94#ifdef CONFIG_HAVE_ARM_SCU
95 check_cpu_part_num 0xc09, \tmp1, \tmp2
96 mrceq p15, 0, \tmp1, c0, c0, 5
97 andeq \tmp1, \tmp1, #0xF
98 moveq \tmp1, \tmp1, lsl #2
99 moveq \tmp2, #0xf
100 moveq \tmp2, \tmp2, lsl \tmp1
101 ldreq \tmp1, =(TEGRA_ARM_PERIF_VIRT + 0xC)
102 streq \tmp2, [\tmp1] @ invalidate SCU tags for CPU
103 dsb
104#endif
105.endm
106
107/* Macro to check Tegra revision */
108#define APB_MISC_GP_HIDREV 0x804
109.macro tegra_get_soc_id base, tmp1
110 mov32 \tmp1, \base
111 ldr \tmp1, [\tmp1, #APB_MISC_GP_HIDREV]
112 and \tmp1, \tmp1, #0xff00
113 mov \tmp1, \tmp1, lsr #8
114.endm
115
116#else
117void tegra_resume(void);
118int tegra_sleep_cpu_finish(unsigned long);
119void tegra_disable_clean_inv_dcache(u32 flag);
120
121void tegra20_hotplug_shutdown(void);
122void tegra30_hotplug_shutdown(void);
123
124void tegra20_tear_down_cpu(void);
125void tegra30_tear_down_cpu(void);
126
127#endif
128#endif
129

source code of linux/arch/arm/mach-tegra/sleep.h