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   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 /*
   4  * General info from:
   5  * ARM CoreSight Architecture Specification v3.0 IHI0029E
   6  */
   7
   8 #ifndef OPENOCD_TARGET_ARM_CORESIGHT_H
   9 #define OPENOCD_TARGET_ARM_CORESIGHT_H
  10
  11 #include <stdbool.h>
  12 #include <stdint.h>
  13
  14 #include <helper/bits.h>
  15
  16 #define ARM_CS_ALIGN                            (0x1000)
  17
  18 /* mandatory registers */
  19 #define ARM_CS_PIDR0                            (0xFE0)
  20 #define ARM_CS_PIDR1                            (0xFE4)
  21 #define ARM_CS_PIDR2                            (0xFE8)
  22 #define ARM_CS_PIDR3                            (0xFEC)
  23 #define ARM_CS_PIDR4                            (0xFD0)
  24 #define ARM_CS_PIDR5                            (0xFD4)
  25 #define ARM_CS_PIDR6                            (0xFD8)
  26 #define ARM_CS_PIDR7                            (0xFDC)
  27
  28 /*
  29  * When PIDR bit JEDEC is zero, only the lowers 7 bits of DESIGNER are valid
  30  * and represent a legacy ASCII Identity Code.
  31  */
  32 #define ARM_CS_PIDR_PART(pidr)                  ((pidr) & 0x0FFF)
  33 #define ARM_CS_PIDR_DESIGNER(pidr)              \
  34 ({                                              \
  35         typeof(pidr) _x = (pidr);                   \
  36         ((_x >> 25) & 0x780) | ((_x >> 12) & 0x7F); \
  37 })
  38 #define ARM_CS_PIDR_JEDEC                       BIT(19)
  39 #define ARM_CS_PIDR_SIZE(pidr)                  (((pidr) >> 36) & 0x000F)
  40
  41 #define ARM_CS_CIDR0                            (0xFF0)
  42 #define ARM_CS_CIDR1                            (0xFF4)
  43 #define ARM_CS_CIDR2                            (0xFF8)
  44 #define ARM_CS_CIDR3                            (0xFFC)
  45
  46 #define ARM_CS_CIDR_CLASS_MASK                  (0x0000F000)
  47 #define ARM_CS_CIDR_CLASS_SHIFT                 (12)
  48 #define ARM_CS_CLASS_0X1_ROM_TABLE              (0x1)
  49 #define ARM_CS_CLASS_0X9_CS_COMPONENT           (0x9)
  50
  51 #define ARM_CS_CIDR1_CLASS_MASK                 (0x000000F0)
  52 #define ARM_CS_CIDR1_CLASS_SHIFT                (4)
  53
  54 static inline bool is_valid_arm_cs_cidr(uint32_t cidr)
  55 {
  56         return (cidr & ~ARM_CS_CIDR_CLASS_MASK) == 0xB105000D;
  57 }
  58
  59 /* Class 0x9 only registers */
  60 #define ARM_CS_C9_DEVARCH                       (0xFBC)
  61
  62 #define ARM_CS_C9_DEVARCH_ARCHID_MASK           (0x0000FFFF)
  63 #define ARM_CS_C9_DEVARCH_ARCHID_SHIFT          (0)
  64 #define ARM_CS_C9_DEVARCH_REVISION_MASK         (0x000F0000)
  65 #define ARM_CS_C9_DEVARCH_REVISION_SHIFT        (16)
  66 #define ARM_CS_C9_DEVARCH_PRESENT               BIT(20)
  67 #define ARM_CS_C9_DEVARCH_ARCHITECT_MASK        (0xFFE00000)
  68 #define ARM_CS_C9_DEVARCH_ARCHITECT_SHIFT       (21)
  69
  70 #define ARM_CS_C9_DEVID                         (0xFC8)
  71
  72 #define ARM_CS_C9_DEVID_FORMAT_MASK             (0x0000000F)
  73 #define ARM_CS_C9_DEVID_FORMAT_32BIT            (0)
  74 #define ARM_CS_C9_DEVID_FORMAT_64BIT            (1)
  75 #define ARM_CS_C9_DEVID_SYSMEM_MASK             BIT(4)
  76 #define ARM_CS_C9_DEVID_PRR_MASK                BIT(5)
  77 #define ARM_CS_C9_DEVID_CP_MASK                 BIT(5)
  78
  79 #define ARM_CS_C9_DEVTYPE                       (0xFCC)
  80
  81 #define ARM_CS_C9_DEVTYPE_MAJOR_MASK            (0x0000000F)
  82 #define ARM_CS_C9_DEVTYPE_MAJOR_SHIFT           (0)
  83 #define ARM_CS_C9_DEVTYPE_SUB_MASK              (0x000000F0)
  84 #define ARM_CS_C9_DEVTYPE_SUB_SHIFT             (4)
  85
  86 #define ARM_CS_C9_DEVTYPE_MASK                  (0x000000FF)
  87 #define ARM_CS_C9_DEVTYPE_CORE_DEBUG            (0x00000015)
  88
  89 /* Class 0x1 only registers */
  90 #define ARM_CS_C1_MEMTYPE                       ARM_CS_C9_DEVTYPE
  91
  92 #define ARM_CS_C1_MEMTYPE_SYSMEM_MASK           BIT(0)
  93
  94 /* The coding of ROM entry present differs between Class 0x9 and Class 0x1,
  95  * but we can simplify the whole management */
  96 #define ARM_CS_ROMENTRY_PRESENT                 BIT(0)
  97 #define ARM_CS_ROMENTRY_OFFSET_MASK             (0xFFFFF000U)
  98
  99 #endif /* OPENOCD_TARGET_ARM_CORESIGHT_H */