* *
* Copyright (C) 2008 by David T.L. Wong *
* *
+ * Copyright (C) 2011 by Drasko DRASKOVIC *
+ * drasko.draskovic@gmail.com *
+ * *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
#define MIPS32_COMMON_MAGIC 0xB320B320
+/**
+ * Memory segments (32bit kernel mode addresses)
+ * These are the traditional names used in the 32-bit universe.
+ */
+#define KUSEG 0x00000000
+#define KSEG0 0x80000000
+#define KSEG1 0xa0000000
+#define KSEG2 0xc0000000
+#define KSEG3 0xe0000000
+
+/** Returns the kernel segment base of a given address */
+#define KSEGX(a) ((a) & 0xe0000000)
+
+/** CP0 CONFIG regites fields */
+#define MIPS32_CONFIG0_KU_SHIFT 25
+#define MIPS32_CONFIG0_KU_MASK (0x7 << MIPS32_CONFIG0_KU_SHIFT)
+
+#define MIPS32_CONFIG0_K0_SHIFT 0
+#define MIPS32_CONFIG0_K0_MASK (0x7 << MIPS32_CONFIG0_K0_SHIFT)
+
+#define MIPS32_CONFIG0_K23_SHIFT 28
+#define MIPS32_CONFIG0_K23_MASK (0x7 << MIPS32_CONFIG0_K23_SHIFT)
+
+#define MIPS32_CONFIG0_AR_SHIFT 10
+#define MIPS32_CONFIG0_AR_MASK (0x7 << MIPS32_CONFIG0_AR_SHIFT)
+
+#define MIPS32_CONFIG1_DL_SHIFT 10
+#define MIPS32_CONFIG1_DL_MASK (0x7 << MIPS32_CONFIG1_DL_SHIFT)
+
+#define MIPS32_ARCH_REL1 0x0
+#define MIPS32_ARCH_REL2 0x1
+
/* offsets into mips32 core register cache */
-enum
-{
+enum {
MIPS32_PC = 37,
MIPS32NUMCOREREGS
};
-enum mips32_isa_mode
-{
+enum mips32_isa_mode {
MIPS32_ISA_MIPS32 = 0,
MIPS32_ISA_MIPS16E = 1,
};
-struct mips32_comparator
-{
+struct mips32_comparator {
int used;
uint32_t bp_value;
uint32_t reg_address;
};
-struct mips32_common
-{
+struct mips32_common {
uint32_t common_magic;
void *arch_info;
struct reg_cache *core_cache;
return target->arch_info;
}
-struct mips32_core_reg
-{
+struct mips32_core_reg {
uint32_t num;
struct target *target;
struct mips32_common *mips32_common;
};
-struct mips32_algorithm
-{
+struct mips32_algorithm {
int common_magic;
enum mips32_isa_mode isa_mode;
};
+#define MIPS32_OP_ADDIU 0x21
+#define MIPS32_OP_ANDI 0x0C
#define MIPS32_OP_BEQ 0x04
+#define MIPS32_OP_BGTZ 0x07
#define MIPS32_OP_BNE 0x05
#define MIPS32_OP_ADDI 0x08
#define MIPS32_OP_AND 0x24
+#define MIPS32_OP_CACHE 0x2F
#define MIPS32_OP_COP0 0x10
#define MIPS32_OP_JR 0x08
#define MIPS32_OP_LUI 0x0F
#define MIPS32_OP_MTHI 0x11
#define MIPS32_OP_MFLO 0x12
#define MIPS32_OP_MTLO 0x13
+#define MIPS32_OP_RDHWR 0x3B
#define MIPS32_OP_SB 0x28
#define MIPS32_OP_SH 0x29
#define MIPS32_OP_SW 0x2B
#define MIPS32_OP_ORI 0x0D
+#define MIPS32_OP_XORI 0x0E
+#define MIPS32_OP_XOR 0x26
+#define MIPS32_OP_SLTU 0x2B
+#define MIPS32_OP_SRL 0x03
+#define MIPS32_OP_SYNCI 0x1F
+
+#define MIPS32_OP_REGIMM 0x01
+#define MIPS32_OP_SDBBP 0x3F
+#define MIPS32_OP_SPECIAL 0x00
+#define MIPS32_OP_SPECIAL2 0x07
+#define MIPS32_OP_SPECIAL3 0x1F
#define MIPS32_COP0_MF 0x00
#define MIPS32_COP0_MT 0x04
-#define MIPS32_R_INST(opcode, rs, rt, rd, shamt, funct) (((opcode) << 26) |((rs) << 21) | ((rt) << 16) | ((rd) << 11)| ((shamt) << 6) | (funct))
-#define MIPS32_I_INST(opcode, rs, rt, immd) (((opcode) << 26) |((rs) << 21) | ((rt) << 16) | (immd))
-#define MIPS32_J_INST(opcode, addr) (((opcode) << 26) |(addr))
-
-#define MIPS32_NOP 0
-#define MIPS32_ADDI(tar, src, val) MIPS32_I_INST(MIPS32_OP_ADDI, src, tar, val)
-#define MIPS32_AND(reg, off, val) MIPS32_R_INST(0, off, val, reg, 0, MIPS32_OP_AND)
-#define MIPS32_B(off) MIPS32_BEQ(0, 0, off)
-#define MIPS32_BEQ(src,tar,off) MIPS32_I_INST(MIPS32_OP_BEQ, src, tar, off)
-#define MIPS32_BNE(src,tar,off) MIPS32_I_INST(MIPS32_OP_BNE, src, tar, off)
-#define MIPS32_JR(reg) MIPS32_R_INST(0, reg, 0, 0, 0, MIPS32_OP_JR)
-#define MIPS32_MFC0(gpr, cpr, sel) MIPS32_R_INST(MIPS32_OP_COP0, MIPS32_COP0_MF, gpr, cpr, 0, sel)
-#define MIPS32_MTC0(gpr,cpr, sel) MIPS32_R_INST(MIPS32_OP_COP0, MIPS32_COP0_MT, gpr, cpr, 0, sel)
-#define MIPS32_LBU(reg, off, base) MIPS32_I_INST(MIPS32_OP_LBU, base, reg, off)
-#define MIPS32_LHU(reg, off, base) MIPS32_I_INST(MIPS32_OP_LHU, base, reg, off)
-#define MIPS32_LUI(reg, val) MIPS32_I_INST(MIPS32_OP_LUI, 0, reg, val)
-#define MIPS32_LW(reg, off, base) MIPS32_I_INST(MIPS32_OP_LW, base, reg, off)
-#define MIPS32_MFLO(reg) MIPS32_R_INST(0, 0, 0, reg, 0, MIPS32_OP_MFLO)
-#define MIPS32_MFHI(reg) MIPS32_R_INST(0, 0, 0, reg, 0, MIPS32_OP_MFHI)
-#define MIPS32_MTLO(reg) MIPS32_R_INST(0, reg, 0, 0, 0, MIPS32_OP_MTLO)
-#define MIPS32_MTHI(reg) MIPS32_R_INST(0, reg, 0, 0, 0, MIPS32_OP_MTHI)
-#define MIPS32_ORI(src, tar, val) MIPS32_I_INST(MIPS32_OP_ORI, src, tar, val)
-#define MIPS32_SB(reg, off, base) MIPS32_I_INST(MIPS32_OP_SB, base, reg, off)
-#define MIPS32_SH(reg, off, base) MIPS32_I_INST(MIPS32_OP_SH, base, reg, off)
-#define MIPS32_SW(reg, off, base) MIPS32_I_INST(MIPS32_OP_SW, base, reg, off)
+#define MIPS32_R_INST(opcode, rs, rt, rd, shamt, funct) \
+ (((opcode) << 26) | ((rs) << 21) | ((rt) << 16) | ((rd) << 11) | ((shamt) << 6) | (funct))
+#define MIPS32_I_INST(opcode, rs, rt, immd) \
+ (((opcode) << 26) | ((rs) << 21) | ((rt) << 16) | (immd))
+#define MIPS32_J_INST(opcode, addr) (((opcode) << 26) | (addr))
+
+#define MIPS32_NOP 0
+#define MIPS32_ADDI(tar, src, val) MIPS32_I_INST(MIPS32_OP_ADDI, src, tar, val)
+#define MIPS32_ADDU(dst, src, tar) MIPS32_R_INST(MIPS32_OP_SPECIAL, src, tar, dst, 0, MIPS32_OP_ADDIU)
+#define MIPS32_AND(reg, off, val) MIPS32_R_INST(0, off, val, reg, 0, MIPS32_OP_AND)
+#define MIPS32_ANDI(tar, src, val) MIPS32_I_INST(MIPS32_OP_ANDI, src, tar, val)
+#define MIPS32_B(off) MIPS32_BEQ(0, 0, off)
+#define MIPS32_BEQ(src, tar, off) MIPS32_I_INST(MIPS32_OP_BEQ, src, tar, off)
+#define MIPS32_BGTZ(reg, off) MIPS32_I_INST(MIPS32_OP_BGTZ, reg, 0, off)
+#define MIPS32_BNE(src, tar, off) MIPS32_I_INST(MIPS32_OP_BNE, src, tar, off)
+#define MIPS32_CACHE(op, off, base) MIPS32_I_INST(MIPS32_OP_CACHE, base, op, off)
+#define MIPS32_JR(reg) MIPS32_R_INST(0, reg, 0, 0, 0, MIPS32_OP_JR)
+#define MIPS32_MFC0(gpr, cpr, sel) MIPS32_R_INST(MIPS32_OP_COP0, MIPS32_COP0_MF, gpr, cpr, 0, sel)
+#define MIPS32_MTC0(gpr, cpr, sel) MIPS32_R_INST(MIPS32_OP_COP0, MIPS32_COP0_MT, gpr, cpr, 0, sel)
+#define MIPS32_LBU(reg, off, base) MIPS32_I_INST(MIPS32_OP_LBU, base, reg, off)
+#define MIPS32_LHU(reg, off, base) MIPS32_I_INST(MIPS32_OP_LHU, base, reg, off)
+#define MIPS32_LUI(reg, val) MIPS32_I_INST(MIPS32_OP_LUI, 0, reg, val)
+#define MIPS32_LW(reg, off, base) MIPS32_I_INST(MIPS32_OP_LW, base, reg, off)
+#define MIPS32_MFLO(reg) MIPS32_R_INST(0, 0, 0, reg, 0, MIPS32_OP_MFLO)
+#define MIPS32_MFHI(reg) MIPS32_R_INST(0, 0, 0, reg, 0, MIPS32_OP_MFHI)
+#define MIPS32_MTLO(reg) MIPS32_R_INST(0, reg, 0, 0, 0, MIPS32_OP_MTLO)
+#define MIPS32_MTHI(reg) MIPS32_R_INST(0, reg, 0, 0, 0, MIPS32_OP_MTHI)
+#define MIPS32_ORI(tar, src, val) MIPS32_I_INST(MIPS32_OP_ORI, src, tar, val)
+#define MIPS32_XORI(tar, src, val) MIPS32_I_INST(MIPS32_OP_XORI, src, tar, val)
+#define MIPS32_RDHWR(tar, dst) MIPS32_R_INST(MIPS32_OP_SPECIAL3, 0, tar, dst, 0, MIPS32_OP_RDHWR)
+#define MIPS32_SB(reg, off, base) MIPS32_I_INST(MIPS32_OP_SB, base, reg, off)
+#define MIPS32_SH(reg, off, base) MIPS32_I_INST(MIPS32_OP_SH, base, reg, off)
+#define MIPS32_SW(reg, off, base) MIPS32_I_INST(MIPS32_OP_SW, base, reg, off)
+#define MIPS32_XOR(reg, val1, val2) MIPS32_R_INST(0, val1, val2, reg, 0, MIPS32_OP_XOR)
+#define MIPS32_SRL(reg, src, off) MIPS32_R_INST(0, 0, src, reg, off, MIPS32_OP_SRL)
+#define MIPS32_SLTU(dst, src, tar) MIPS32_R_INST(MIPS32_OP_SPECIAL, src, tar, dst, 0, MIPS32_OP_SLTU)
+#define MIPS32_SYNCI(off, base) MIPS32_I_INST(MIPS32_OP_REGIMM, base, MIPS32_OP_SYNCI, off)
+
+#define MIPS32_SYNC 0xF
+#define MIPS32_SYNCI_STEP 0x1 /* reg num od address step size to be used with synci instruction */
+
+/**
+ * Cache operations definietions
+ * Operation field is 5 bits long :
+ * 1) bits 1..0 hold cache type
+ * 2) bits 4..2 hold operation code
+ */
+#define MIPS32_CACHE_D_HIT_WRITEBACK ((0x1 << 0) | (0x6 << 2))
+#define MIPS32_CACHE_I_HIT_INVALIDATE ((0x0 << 0) | (0x4 << 2))
/* ejtag specific instructions */
#define MIPS32_DRET 0x4200001F
-#define MIPS32_SDBBP 0x7000003F
+#define MIPS32_SDBBP 0x7000003F /* MIPS32_J_INST(MIPS32_OP_SPECIAL2, MIPS32_OP_SDBBP) */
#define MIPS16_SDBBP 0xE801
+extern const struct command_registration mips32_command_handlers[];
+
int mips32_arch_state(struct target *target);
int mips32_init_arch_info(struct target *target,
int mips32_get_gdb_reg_list(struct target *target,
struct reg **reg_list[], int *reg_list_size);
int mips32_checksum_memory(struct target *target, uint32_t address,
- uint32_t count, uint32_t* checksum);
+ uint32_t count, uint32_t *checksum);
int mips32_blank_check_memory(struct target *target,
- uint32_t address, uint32_t count, uint32_t* blank);
+ uint32_t address, uint32_t count, uint32_t *blank);
#endif /*MIPS32_H*/
projects / fw / openocd / blobdiff