arch/arm/mach-tegra/sleep.h

   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
  45 1001:   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
 117 void tegra_resume(void);
 118 int tegra_sleep_cpu_finish(unsigned long);
 119 void tegra_disable_clean_inv_dcache(u32 flag);
 120
 121 void tegra20_hotplug_shutdown(void);
 122 void tegra30_hotplug_shutdown(void);
 123
 124 void tegra20_tear_down_cpu(void);
 125 void tegra30_tear_down_cpu(void);
 126
 127 #endif
 128 #endif