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   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 /***************************************************************************
   4  *   Copyright (C) 2015 Oleksij Rempel                                     *
   5  *   linux@rempel-privat.de                                                *
   6  ***************************************************************************/
   7
   8 #ifndef OPENOCD_TARGET_ARM7A_CACHE_L2X_H
   9 #define OPENOCD_TARGET_ARM7A_CACHE_L2X_H
  10
  11 #define L2X0_CACHE_LINE_SIZE            32
  12
  13 /* source: linux/arch/arm/include/asm/hardware/cache-l2x0.h */
  14 #define L2X0_CACHE_ID                   0x000
  15 #define L2X0_CACHE_TYPE                 0x004
  16 #define L2X0_CTRL                       0x100
  17 #define L2X0_AUX_CTRL                   0x104
  18 #define L2X0_TAG_LATENCY_CTRL           0x108
  19 #define L2X0_DATA_LATENCY_CTRL          0x10C
  20 #define L2X0_EVENT_CNT_CTRL             0x200
  21 #define L2X0_EVENT_CNT1_CFG             0x204
  22 #define L2X0_EVENT_CNT0_CFG             0x208
  23 #define L2X0_EVENT_CNT1_VAL             0x20C
  24 #define L2X0_EVENT_CNT0_VAL             0x210
  25 #define L2X0_INTR_MASK                  0x214
  26 #define L2X0_MASKED_INTR_STAT           0x218
  27 #define L2X0_RAW_INTR_STAT              0x21C
  28 #define L2X0_INTR_CLEAR                 0x220
  29 #define L2X0_CACHE_SYNC                 0x730
  30 #define L2X0_DUMMY_REG                  0x740
  31 #define L2X0_INV_LINE_PA                0x770
  32 #define L2X0_INV_WAY                    0x77C
  33 #define L2X0_CLEAN_LINE_PA              0x7B0
  34 #define L2X0_CLEAN_LINE_IDX             0x7B8
  35 #define L2X0_CLEAN_WAY                  0x7BC
  36 #define L2X0_CLEAN_INV_LINE_PA          0x7F0
  37 #define L2X0_CLEAN_INV_LINE_IDX         0x7F8
  38 #define L2X0_CLEAN_INV_WAY              0x7FC
  39 /*
  40  * The lockdown registers repeat 8 times for L310, the L210 has only one
  41  * D and one I lockdown register at 0x0900 and 0x0904.
  42  */
  43 #define L2X0_LOCKDOWN_WAY_D_BASE        0x900
  44 #define L2X0_LOCKDOWN_WAY_I_BASE        0x904
  45 #define L2X0_LOCKDOWN_STRIDE            0x08
  46 #define L2X0_ADDR_FILTER_START          0xC00
  47 #define L2X0_ADDR_FILTER_END            0xC04
  48 #define L2X0_TEST_OPERATION             0xF00
  49 #define L2X0_LINE_DATA                  0xF10
  50 #define L2X0_LINE_TAG                   0xF30
  51 #define L2X0_DEBUG_CTRL                 0xF40
  52 #define L2X0_PREFETCH_CTRL              0xF60
  53 #define L2X0_POWER_CTRL                 0xF80
  54 #define   L2X0_DYNAMIC_CLK_GATING_EN    (1 << 1)
  55 #define   L2X0_STNDBY_MODE_EN           (1 << 0)
  56
  57 /* Registers shifts and masks */
  58 #define L2X0_CACHE_ID_PART_MASK         (0xf << 6)
  59 #define L2X0_CACHE_ID_PART_L210         (1 << 6)
  60 #define L2X0_CACHE_ID_PART_L310         (3 << 6)
  61 #define L2X0_CACHE_ID_RTL_MASK          0x3f
  62 #define L2X0_CACHE_ID_RTL_R0P0          0x0
  63 #define L2X0_CACHE_ID_RTL_R1P0          0x2
  64 #define L2X0_CACHE_ID_RTL_R2P0          0x4
  65 #define L2X0_CACHE_ID_RTL_R3P0          0x5
  66 #define L2X0_CACHE_ID_RTL_R3P1          0x6
  67 #define L2X0_CACHE_ID_RTL_R3P2          0x8
  68
  69 #define L2X0_AUX_CTRL_MASK                      0xc0000fff
  70 #define L2X0_AUX_CTRL_DATA_RD_LATENCY_SHIFT     0
  71 #define L2X0_AUX_CTRL_DATA_RD_LATENCY_MASK      0x7
  72 #define L2X0_AUX_CTRL_DATA_WR_LATENCY_SHIFT     3
  73 #define L2X0_AUX_CTRL_DATA_WR_LATENCY_MASK      (0x7 << 3)
  74 #define L2X0_AUX_CTRL_TAG_LATENCY_SHIFT         6
  75 #define L2X0_AUX_CTRL_TAG_LATENCY_MASK          (0x7 << 6)
  76 #define L2X0_AUX_CTRL_DIRTY_LATENCY_SHIFT       9
  77 #define L2X0_AUX_CTRL_DIRTY_LATENCY_MASK        (0x7 << 9)
  78 #define L2X0_AUX_CTRL_ASSOCIATIVITY_SHIFT       16
  79 #define L2X0_AUX_CTRL_WAY_SIZE_SHIFT            17
  80 #define L2X0_AUX_CTRL_WAY_SIZE_MASK             (0x7 << 17)
  81 #define L2X0_AUX_CTRL_SHARE_OVERRIDE_SHIFT      22
  82 #define L2X0_AUX_CTRL_NS_LOCKDOWN_SHIFT         26
  83 #define L2X0_AUX_CTRL_NS_INT_CTRL_SHIFT         27
  84 #define L2X0_AUX_CTRL_DATA_PREFETCH_SHIFT       28
  85 #define L2X0_AUX_CTRL_INSTR_PREFETCH_SHIFT      29
  86 #define L2X0_AUX_CTRL_EARLY_BRESP_SHIFT         30
  87
  88 #define L2X0_LATENCY_CTRL_SETUP_SHIFT   0
  89 #define L2X0_LATENCY_CTRL_RD_SHIFT      4
  90 #define L2X0_LATENCY_CTRL_WR_SHIFT      8
  91
  92 #define L2X0_ADDR_FILTER_EN             1
  93
  94 #define L2X0_CTRL_EN                    1
  95
  96 #define L2X0_WAY_SIZE_SHIFT             3
  97
  98 struct l2x0_regs {
  99         unsigned long phy_base;
 100         unsigned long aux_ctrl;
 101         /*
 102          * Whether the following registers need to be saved/restored
 103          * depends on platform
 104          */
 105         unsigned long tag_latency;
 106         unsigned long data_latency;
 107         unsigned long filter_start;
 108         unsigned long filter_end;
 109         unsigned long prefetch_ctrl;
 110         unsigned long pwr_ctrl;
 111         unsigned long ctrl;
 112         unsigned long aux2_ctrl;
 113 };
 114
 115 struct outer_cache_fns {
 116         void (*inv_range)(unsigned long, unsigned long);
 117         void (*clean_range)(unsigned long, unsigned long);
 118         void (*flush_range)(unsigned long, unsigned long);
 119         void (*flush_all)(void);
 120         void (*disable)(void);
 121
 122         void (*resume)(void);
 123
 124         /* This is an ARM L2C thing */
 125         void (*write_sec)(unsigned long, unsigned);
 126         void (*configure)(const struct l2x0_regs *);
 127 };
 128
 129 struct l2c_init_data {
 130         const char *type;
 131         unsigned way_size_0;
 132         unsigned num_lock;
 133
 134         void (*enable)(uint32_t, uint32_t, unsigned);
 135         void (*fixup)(uint32_t, uint32_t, struct outer_cache_fns *);
 136         void (*save)(uint32_t);
 137         void (*configure)(uint32_t);
 138         struct outer_cache_fns outer_cache;
 139 };
 140
 141 extern const struct command_registration arm7a_l2x_cache_command_handler[];
 142
 143 int armv7a_l2x_cache_flush_virt(struct target *target, target_addr_t virt,
 144                                         uint32_t size);
 145 int arm7a_l2x_flush_all_data(struct target *target);
 146
 147 #endif /* OPENOCD_TARGET_ARM7A_CACHE_L2X_H */