X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Fmips_m4k.c;h=c99ca92f61dd7905cc307bd779d6ce51555fb8b7;hp=599b2159548fa3b9e079bf2cb513fb7f5d036772;hb=8f2c1659cf3d5a72ade3504caac248a0975aff2e;hpb=8d73c2a9b0c00c870694a57f7cfbc23e354855ac diff --git a/src/target/mips_m4k.c b/src/target/mips_m4k.c index 599b215954..c99ca92f61 100644 --- a/src/target/mips_m4k.c +++ b/src/target/mips_m4k.c @@ -25,6 +25,7 @@ #include "mips32.h" #include "mips_m4k.h" +#include "mips32_dmaacc.h" #include "jtag.h" #include "log.h" @@ -44,7 +45,7 @@ int mips_m4k_write_memory(struct target_s *target, u32 address, u32 size, u32 co int mips_m4k_register_commands(struct command_context_s *cmd_ctx); int mips_m4k_init_target(struct command_context_s *cmd_ctx, struct target_s *target); int mips_m4k_quit(void); -int mips_m4k_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target); +int mips_m4k_target_create(struct target_s *target, Jim_Interp *interp); int mips_m4k_examine(struct target_s *target); int mips_m4k_assert_reset(target_t *target); @@ -83,7 +84,7 @@ target_type_t mips_m4k_target = .remove_watchpoint = mips_m4k_remove_watchpoint, .register_commands = mips_m4k_register_commands, - .target_command = mips_m4k_target_command, + .target_create = mips_m4k_target_create, .init_target = mips_m4k_init_target, .examine = mips_m4k_examine, .quit = mips_m4k_quit @@ -131,13 +132,14 @@ int mips_m4k_poll(target_t *target) int retval; mips32_common_t *mips32 = target->arch_info; mips_ejtag_t *ejtag_info = &mips32->ejtag_info; + u32 ejtag_ctrl = ejtag_info->ejtag_ctrl; /* read ejtag control reg */ jtag_add_end_state(TAP_RTI); mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL); - mips_ejtag_drscan_32(ejtag_info, &ejtag_info->ejtag_ctrl); + mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl); - if (ejtag_info->ejtag_ctrl & EJTAG_CTRL_BRKST) + if (ejtag_ctrl & EJTAG_CTRL_BRKST) { if ((target->state == TARGET_RUNNING) || (target->state == TARGET_RESET)) { @@ -166,19 +168,19 @@ int mips_m4k_poll(target_t *target) target->state = TARGET_RUNNING; } - if (ejtag_info->ejtag_ctrl & EJTAG_CTRL_ROCC) + if (ejtag_ctrl & EJTAG_CTRL_ROCC) { /* we have detected a reset, clear flag * otherwise ejtag will not work */ jtag_add_end_state(TAP_RTI); - ejtag_info->ejtag_ctrl &= ~EJTAG_CTRL_ROCC; + ejtag_ctrl = ejtag_info->ejtag_ctrl & ~EJTAG_CTRL_ROCC; mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL); - mips_ejtag_drscan_32(ejtag_info, &ejtag_info->ejtag_ctrl); + mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl); LOG_DEBUG("Reset Detected"); } -// LOG_DEBUG("ctrl=0x%08X", ejtag_info->ejtag_ctrl); +// LOG_DEBUG("ctrl=0x%08X", ejtag_ctrl); return ERROR_OK; } @@ -234,7 +236,7 @@ int mips_m4k_assert_reset(target_t *target) mips_ejtag_t *ejtag_info = &mips32->ejtag_info; LOG_DEBUG("target->state: %s", - Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name); + Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name); if (!(jtag_reset_config & RESET_HAS_SRST)) { @@ -254,14 +256,24 @@ int mips_m4k_assert_reset(target_t *target) mips_ejtag_set_instr(ejtag_info, EJTAG_INST_NORMALBOOT, NULL); } - /* here we should issue a srst only, but we may have to assert trst as well */ - if (jtag_reset_config & RESET_SRST_PULLS_TRST) + if (strcmp(target->variant, "ejtag_srst") == 0) { - jtag_add_reset(1, 1); + u32 ejtag_ctrl = ejtag_info->ejtag_ctrl | EJTAG_CTRL_PRRST | EJTAG_CTRL_PERRST; + LOG_DEBUG("Using EJTAG reset (PRRST) to reset processor..."); + mips_ejtag_set_instr(ejtag_info, EJTAG_INST_CONTROL, NULL); + mips_ejtag_drscan_32(ejtag_info, &ejtag_ctrl); } else { - jtag_add_reset(0, 1); + /* here we should issue a srst only, but we may have to assert trst as well */ + if (jtag_reset_config & RESET_SRST_PULLS_TRST) + { + jtag_add_reset(1, 1); + } + else + { + jtag_add_reset(0, 1); + } } target->state = TARGET_RESET; @@ -269,12 +281,12 @@ int mips_m4k_assert_reset(target_t *target) mips32_invalidate_core_regs(target); - if (target->reset_halt) - { - int retval; + if (target->reset_halt) + { + int retval; if ((retval = target_halt(target))!=ERROR_OK) return retval; - } + } return ERROR_OK; @@ -283,7 +295,7 @@ int mips_m4k_assert_reset(target_t *target) int mips_m4k_deassert_reset(target_t *target) { LOG_DEBUG("target->state: %s", - Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name); + Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name); /* deassert reset lines */ jtag_add_reset(0, 0); @@ -318,7 +330,7 @@ int mips_m4k_resume(struct target_s *target, int current, u32 address, int handl } /* current = 1: continue on current pc, otherwise continue at
*/ - if (!current) + if (!current) { buf_set_u32(mips32->core_cache->reg_list[MIPS32_PC].value, 0, 32, address); mips32->core_cache->reg_list[MIPS32_PC].dirty = 1; @@ -512,7 +524,11 @@ int mips_m4k_read_memory(struct target_s *target, u32 address, u32 size, u32 cou case 4: case 2: case 1: - return mips32_pracc_read_mem(ejtag_info, address, size, count, (void *)buffer); + /* if noDMA off, use DMAACC mode for memory read */ + if(ejtag_info->impcode & EJTAG_IMP_NODMA) + return mips32_pracc_read_mem(ejtag_info, address, size, count, (void *)buffer); + else + return mips32_dmaacc_read_mem(ejtag_info, address, size, count, (void *)buffer); default: LOG_ERROR("BUG: we shouldn't get here"); exit(-1); @@ -547,7 +563,11 @@ int mips_m4k_write_memory(struct target_s *target, u32 address, u32 size, u32 co case 4: case 2: case 1: - mips32_pracc_write_mem(ejtag_info, address, size, count, (void *)buffer); + /* if noDMA off, use DMAACC mode for memory write */ + if(ejtag_info->impcode & EJTAG_IMP_NODMA) + mips32_pracc_write_mem(ejtag_info, address, size, count, (void *)buffer); + else + mips32_dmaacc_write_mem(ejtag_info, address, size, count, (void *)buffer); break; default: LOG_ERROR("BUG: we shouldn't get here"); @@ -578,7 +598,7 @@ int mips_m4k_quit(void) return ERROR_OK; } -int mips_m4k_init_arch_info(target_t *target, mips_m4k_common_t *mips_m4k, int chain_pos, char *variant) +int mips_m4k_init_arch_info(target_t *target, mips_m4k_common_t *mips_m4k, int chain_pos, const char *variant) { mips32_common_t *mips32 = &mips_m4k->mips32_common; @@ -596,28 +616,15 @@ int mips_m4k_init_arch_info(target_t *target, mips_m4k_common_t *mips_m4k, int c /* initialize mips4k specific info */ mips32_init_arch_info(target, mips32, chain_pos, variant); mips32->arch_info = mips_m4k; - + return ERROR_OK; } -int mips_m4k_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target) +int mips_m4k_target_create(struct target_s *target, Jim_Interp *interp) { - int chain_pos; - char *variant = NULL; - mips_m4k_common_t *mips_m4k = malloc(sizeof(mips_m4k_common_t)); - - if (argc < 4) - { - LOG_ERROR("'target mips4k' requires at least one additional argument"); - exit(-1); - } - - chain_pos = strtoul(args[3], NULL, 0); - - if (argc >= 5) - variant = args[4]; + mips_m4k_common_t *mips_m4k = calloc(1,sizeof(mips_m4k_common_t)); - mips_m4k_init_arch_info(target, mips_m4k, chain_pos, variant); + mips_m4k_init_arch_info(target, mips_m4k, target->chain_position, target->variant); return ERROR_OK; }