X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Fxscale.c;h=a18fe9af8df11bf49d6036ab256bc0d291a34b13;hp=13ecef1cbbbbad220efb9672f48565de936f975d;hb=490e2712904a718efb320d0557f3bb8485676709;hpb=142a4a4b86685f295739bd19bd9c347a3a1a5439 diff --git a/src/target/xscale.c b/src/target/xscale.c index 13ecef1cbb..a18fe9af8d 100644 --- a/src/target/xscale.c +++ b/src/target/xscale.c @@ -2,6 +2,9 @@ * Copyright (C) 2006, 2007 by Dominic Rath * * Dominic.Rath@gmx.de * * * + * Copyright (C) 2007,2008 Øyvind Harboe * + * oyvind.harboe@zylin.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 * @@ -25,6 +28,7 @@ #include "xscale.h" +#include "arm7_9_common.h" #include "register.h" #include "target.h" #include "armv4_5.h" @@ -40,7 +44,6 @@ #include #include -#include #include #include @@ -49,12 +52,12 @@ int xscale_register_commands(struct command_context_s *cmd_ctx); /* forward declarations */ -int xscale_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target); +int xscale_target_create(struct target_s *target, Jim_Interp *interp); int xscale_init_target(struct command_context_s *cmd_ctx, struct target_s *target); -int xscale_quit(); +int xscale_quit(void); -int xscale_arch_state(struct target_s *target, char *buf, int buf_size); -enum target_state xscale_poll(target_t *target); +int xscale_arch_state(struct target_s *target); +int xscale_poll(target_t *target); int xscale_halt(target_t *target); int xscale_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution); int xscale_step(struct target_s *target, int current, u32 address, int handle_breakpoints); @@ -64,7 +67,6 @@ int xscale_restore_context(target_t *target); int xscale_assert_reset(target_t *target); int xscale_deassert_reset(target_t *target); int xscale_soft_reset_halt(struct target_s *target); -int xscale_prepare_reset_halt(struct target_s *target); int xscale_set_reg_u32(reg_t *reg, u32 value); @@ -74,7 +76,6 @@ int xscale_write_core_reg(struct target_s *target, int num, enum armv4_5_mode mo int xscale_read_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer); int xscale_write_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer); int xscale_bulk_write_memory(target_t *target, u32 address, u32 count, u8 *buffer); -int xscale_checksum_memory(struct target_s *target, u32 address, u32 count, u32* checksum); int xscale_add_breakpoint(struct target_s *target, breakpoint_t *breakpoint); int xscale_remove_breakpoint(struct target_s *target, breakpoint_t *breakpoint); @@ -84,6 +85,8 @@ int xscale_add_watchpoint(struct target_s *target, watchpoint_t *watchpoint); int xscale_remove_watchpoint(struct target_s *target, watchpoint_t *watchpoint); void xscale_enable_watchpoints(struct target_s *target); void xscale_enable_breakpoints(struct target_s *target); +static int xscale_virt2phys(struct target_s *target, u32 virtual, u32 *physical); +static int xscale_mmu(struct target_s *target, int *enabled); int xscale_read_trace(target_t *target); @@ -103,14 +106,14 @@ target_type_t xscale_target = .assert_reset = xscale_assert_reset, .deassert_reset = xscale_deassert_reset, .soft_reset_halt = xscale_soft_reset_halt, - .prepare_reset_halt = xscale_prepare_reset_halt, .get_gdb_reg_list = armv4_5_get_gdb_reg_list, .read_memory = xscale_read_memory, .write_memory = xscale_write_memory, .bulk_write_memory = xscale_bulk_write_memory, - .checksum_memory = xscale_checksum_memory, + .checksum_memory = arm7_9_checksum_memory, + .blank_check_memory = arm7_9_blank_check_memory, .run_algorithm = armv4_5_run_algorithm, @@ -120,9 +123,12 @@ target_type_t xscale_target = .remove_watchpoint = xscale_remove_watchpoint, .register_commands = xscale_register_commands, - .target_command = xscale_target_command, + .target_create = xscale_target_create, .init_target = xscale_init_target, - .quit = xscale_quit + .quit = xscale_quit, + + .virt2phys = xscale_virt2phys, + .mmu = xscale_mmu }; char* xscale_reg_list[] = @@ -189,11 +195,13 @@ int xscale_get_arch_pointers(target_t *target, armv4_5_common_t **armv4_5_p, xsc if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC) { + LOG_ERROR("target isn't an XScale target"); return -1; } if (xscale->common_magic != XSCALE_COMMON_MAGIC) { + LOG_ERROR("target isn't an XScale target"); return -1; } @@ -203,47 +211,28 @@ int xscale_get_arch_pointers(target_t *target, armv4_5_common_t **armv4_5_p, xsc return ERROR_OK; } -int xscale_jtag_set_instr(int chain_pos, u32 new_instr) +int xscale_jtag_set_instr(jtag_tap_t *tap, u32 new_instr) { - jtag_device_t *device = jtag_get_device(chain_pos); + if (tap==NULL) + return ERROR_FAIL; - if (buf_get_u32(device->cur_instr, 0, device->ir_length) != new_instr) + if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr) { scan_field_t field; - field.device = chain_pos; - field.num_bits = device->ir_length; + field.tap = tap; + field.num_bits = tap->ir_length; field.out_value = calloc(CEIL(field.num_bits, 8), 1); buf_set_u32(field.out_value, 0, field.num_bits, new_instr); - field.out_mask = NULL; - field.in_value = NULL; - field.in_check_value = device->expected; - field.in_check_mask = device->expected_mask; - field.in_handler = NULL; - field.in_handler_priv = NULL; - jtag_add_ir_scan(1, &field, -1, NULL); + u8 tmp[4]; + field.in_value = tmp; - free(field.out_value); - } + jtag_add_ir_scan(1, &field, TAP_INVALID); - return ERROR_OK; -} + jtag_check_value_mask(&field, tap->expected, tap->expected_mask); -int xscale_jtag_callback(enum jtag_event event, void *priv) -{ - switch (event) - { - case JTAG_TRST_ASSERTED: - break; - case JTAG_TRST_RELEASED: - break; - case JTAG_SRST_ASSERTED: - break; - case JTAG_SRST_RELEASED: - break; - default: - WARNING("unhandled JTAG event"); + free(field.out_value); } return ERROR_OK; @@ -264,48 +253,39 @@ int xscale_read_dcsr(target_t *target) u8 field2_check_value = 0x0; u8 field2_check_mask = 0x1; - jtag_add_end_state(TAP_PD); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.dcsr); + jtag_add_end_state(TAP_DRPAUSE); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.dcsr); buf_set_u32(&field0, 1, 1, xscale->hold_rst); buf_set_u32(&field0, 2, 1, xscale->external_debug_break); - fields[0].device = xscale->jtag_info.chain_pos; + fields[0].tap = xscale->jtag_info.tap; fields[0].num_bits = 3; fields[0].out_value = &field0; - fields[0].out_mask = NULL; - fields[0].in_value = NULL; - fields[0].in_check_value = &field0_check_value; - fields[0].in_check_mask = &field0_check_mask; - fields[0].in_handler = NULL; - fields[0].in_handler_priv = NULL; + u8 tmp; + fields[0].in_value = &tmp; - fields[1].device = xscale->jtag_info.chain_pos; + fields[1].tap = xscale->jtag_info.tap; fields[1].num_bits = 32; fields[1].out_value = NULL; - fields[1].out_mask = NULL; fields[1].in_value = xscale->reg_cache->reg_list[XSCALE_DCSR].value; - fields[1].in_handler = NULL; - fields[1].in_handler_priv = NULL; - fields[1].in_check_value = NULL; - fields[1].in_check_mask = NULL; + - fields[2].device = xscale->jtag_info.chain_pos; + fields[2].tap = xscale->jtag_info.tap; fields[2].num_bits = 1; fields[2].out_value = &field2; - fields[2].out_mask = NULL; - fields[2].in_value = NULL; - fields[2].in_check_value = &field2_check_value; - fields[2].in_check_mask = &field2_check_mask; - fields[2].in_handler = NULL; - fields[2].in_handler_priv = NULL; + u8 tmp2; + fields[2].in_value = &tmp2; + + jtag_add_dr_scan(3, fields, TAP_INVALID); - jtag_add_dr_scan(3, fields, -1, NULL); + jtag_check_value_mask(fields+0, &field0_check_value, &field0_check_mask); + jtag_check_value_mask(fields+2, &field2_check_value, &field2_check_mask); if ((retval = jtag_execute_queue()) != ERROR_OK) { - ERROR("JTAG error while reading DCSR"); - exit(-1); + LOG_ERROR("JTAG error while reading DCSR"); + return retval; } xscale->reg_cache->reg_list[XSCALE_DCSR].dirty = 0; @@ -318,19 +298,25 @@ int xscale_read_dcsr(target_t *target) fields[1].out_value = xscale->reg_cache->reg_list[XSCALE_DCSR].value; fields[1].in_value = NULL; - jtag_add_end_state(TAP_RTI); + jtag_add_end_state(TAP_IDLE); - jtag_add_dr_scan(3, fields, -1, NULL); + jtag_add_dr_scan(3, fields, TAP_INVALID); - return ERROR_OK; + /* DANGER!!! this must be here. It will make sure that the arguments + * to jtag_set_check_value() does not go out of scope! */ + return jtag_execute_queue(); } int xscale_receive(target_t *target, u32 *buffer, int num_words) { + if (num_words==0) + return ERROR_INVALID_ARGUMENTS; + + int retval=ERROR_OK; armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; - enum tap_state path[3]; + tap_state_t path[3]; scan_field_t fields[3]; u8 *field0 = malloc(num_words * 1); @@ -343,47 +329,36 @@ int xscale_receive(target_t *target, u32 *buffer, int num_words) int words_scheduled = 0; int i; - int retval; - path[0] = TAP_SDS; - path[1] = TAP_CD; - path[2] = TAP_SD; + path[0] = TAP_DRSELECT; + path[1] = TAP_DRCAPTURE; + path[2] = TAP_DRSHIFT; - fields[0].device = xscale->jtag_info.chain_pos; + fields[0].tap = xscale->jtag_info.tap; fields[0].num_bits = 3; fields[0].out_value = NULL; - fields[0].out_mask = NULL; - /* fields[0].in_value = field0; */ - fields[0].in_check_value = &field0_check_value; - fields[0].in_check_mask = &field0_check_mask; - fields[0].in_handler = NULL; - fields[0].in_handler_priv = NULL; - - fields[1].device = xscale->jtag_info.chain_pos; + u8 tmp2; + fields[0].in_value = &tmp2; + + fields[1].tap = xscale->jtag_info.tap; fields[1].num_bits = 32; fields[1].out_value = NULL; - fields[1].out_mask = NULL; - fields[1].in_value = NULL; - fields[1].in_handler = NULL; - fields[1].in_handler_priv = NULL; - fields[1].in_check_value = NULL; - fields[1].in_check_mask = NULL; + u8 tmp[4]; + fields[1].in_value = tmp; + - fields[2].device = xscale->jtag_info.chain_pos; + fields[2].tap = xscale->jtag_info.tap; fields[2].num_bits = 1; fields[2].out_value = NULL; - fields[2].out_mask = NULL; - fields[2].in_value = NULL; - fields[2].in_check_value = &field2_check_value; - fields[2].in_check_mask = &field2_check_mask; - fields[2].in_handler = NULL; - fields[2].in_handler_priv = NULL; + u8 tmp3; + fields[2].in_value = &tmp3; - jtag_add_end_state(TAP_RTI); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.dbgtx); - jtag_add_runtest(1, -1); + jtag_add_end_state(TAP_IDLE); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.dbgtx); + jtag_add_runtest(1, TAP_INVALID); /* ensures that we're in the TAP_IDLE state as the above could be a no-op */ /* repeat until all words have been collected */ + int attempts=0; while (words_done < num_words) { /* schedule reads */ @@ -391,18 +366,22 @@ int xscale_receive(target_t *target, u32 *buffer, int num_words) for (i = words_done; i < num_words; i++) { fields[0].in_value = &field0[i]; - fields[1].in_handler = buf_to_u32_handler; - fields[1].in_handler_priv = (u8*)&field1[i]; jtag_add_pathmove(3, path); - jtag_add_dr_scan(3, fields, TAP_RTI, NULL); + jtag_add_dr_scan_now(3, fields, TAP_IDLE); + + jtag_check_value_mask(fields+0, &field0_check_value, &field0_check_mask); + jtag_check_value_mask(fields+2, &field2_check_value, &field2_check_mask); + + field1[i]=buf_get_u32(tmp, 0, 32); + words_scheduled++; } if ((retval = jtag_execute_queue()) != ERROR_OK) { - ERROR("JTAG error while receiving data from debug handler"); - exit(-1); + LOG_ERROR("JTAG error while receiving data from debug handler"); + break; } /* examine results */ @@ -420,6 +399,16 @@ int xscale_receive(target_t *target, u32 *buffer, int num_words) words_scheduled--; } } + if (words_scheduled==0) + { + if (attempts++==1000) + { + LOG_ERROR("Failed to receiving data from debug handler after 1000 attempts"); + retval=ERROR_TARGET_TIMEOUT; + break; + } + } + words_done += words_scheduled; } @@ -428,14 +417,15 @@ int xscale_receive(target_t *target, u32 *buffer, int num_words) free(field1); - return ERROR_OK; + return retval; } int xscale_read_tx(target_t *target, int consume) { armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; - enum tap_state path[3]; + tap_state_t path[3]; + tap_state_t noconsume_path[6]; int retval; struct timeval timeout, now; @@ -447,48 +437,42 @@ int xscale_read_tx(target_t *target, int consume) u8 field2_check_value = 0x0; u8 field2_check_mask = 0x1; - jtag_add_end_state(TAP_RTI); + jtag_add_end_state(TAP_IDLE); + + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.dbgtx); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.dbgtx); + path[0] = TAP_DRSELECT; + path[1] = TAP_DRCAPTURE; + path[2] = TAP_DRSHIFT; - path[0] = TAP_SDS; - path[1] = TAP_CD; - path[2] = TAP_SD; + noconsume_path[0] = TAP_DRSELECT; + noconsume_path[1] = TAP_DRCAPTURE; + noconsume_path[2] = TAP_DREXIT1; + noconsume_path[3] = TAP_DRPAUSE; + noconsume_path[4] = TAP_DREXIT2; + noconsume_path[5] = TAP_DRSHIFT; - fields[0].device = xscale->jtag_info.chain_pos; + fields[0].tap = xscale->jtag_info.tap; fields[0].num_bits = 3; fields[0].out_value = NULL; - fields[0].out_mask = NULL; fields[0].in_value = &field0_in; - fields[0].in_check_value = &field0_check_value; - fields[0].in_check_mask = &field0_check_mask; - fields[0].in_handler = NULL; - fields[0].in_handler_priv = NULL; - fields[1].device = xscale->jtag_info.chain_pos; + fields[1].tap = xscale->jtag_info.tap; fields[1].num_bits = 32; fields[1].out_value = NULL; - fields[1].out_mask = NULL; fields[1].in_value = xscale->reg_cache->reg_list[XSCALE_TX].value; - fields[1].in_handler = NULL; - fields[1].in_handler_priv = NULL; - fields[1].in_check_value = NULL; - fields[1].in_check_mask = NULL; + - fields[2].device = xscale->jtag_info.chain_pos; + fields[2].tap = xscale->jtag_info.tap; fields[2].num_bits = 1; fields[2].out_value = NULL; - fields[2].out_mask = NULL; - fields[2].in_value = NULL; - fields[2].in_check_value = &field2_check_value; - fields[2].in_check_mask = &field2_check_mask; - fields[2].in_handler = NULL; - fields[2].in_handler_priv = NULL; + u8 tmp; + fields[2].in_value = &tmp; gettimeofday(&timeout, NULL); - timeval_add_time(&timeout, 5, 0); + timeval_add_time(&timeout, 1, 0); - do + for (;;) { /* if we want to consume the register content (i.e. clear TX_READY), * we have to go straight from Capture-DR to Shift-DR @@ -497,23 +481,41 @@ int xscale_read_tx(target_t *target, int consume) if (consume) jtag_add_pathmove(3, path); else - jtag_add_statemove(TAP_PD); + { + jtag_add_pathmove(sizeof(noconsume_path)/sizeof(*noconsume_path), noconsume_path); + } + + jtag_add_dr_scan(3, fields, TAP_IDLE); - jtag_add_dr_scan(3, fields, TAP_RTI, NULL); + jtag_check_value_mask(fields+0, &field0_check_value, &field0_check_mask); + jtag_check_value_mask(fields+2, &field2_check_value, &field2_check_mask); if ((retval = jtag_execute_queue()) != ERROR_OK) { - ERROR("JTAG error while reading TX"); - exit(-1); + LOG_ERROR("JTAG error while reading TX"); + return ERROR_TARGET_TIMEOUT; } gettimeofday(&now, NULL); - if ((now.tv_sec > timeout.tv_sec) && (now.tv_usec > timeout.tv_usec)) + if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec)&& (now.tv_usec > timeout.tv_usec))) { - ERROR("time out reading TX register"); + LOG_ERROR("time out reading TX register"); return ERROR_TARGET_TIMEOUT; } - } while ((!(field0_in & 1)) && consume); + if (!((!(field0_in & 1)) && consume)) + { + goto done; + } + if (debug_level>=3) + { + LOG_DEBUG("waiting 100ms"); + alive_sleep(100); /* avoid flooding the logs */ + } else + { + keep_alive(); + } + } + done: if (!(field0_in & 1)) return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; @@ -538,71 +540,72 @@ int xscale_write_rx(target_t *target) u8 field2_check_value = 0x0; u8 field2_check_mask = 0x1; - jtag_add_end_state(TAP_RTI); + jtag_add_end_state(TAP_IDLE); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.dbgrx); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.dbgrx); - fields[0].device = xscale->jtag_info.chain_pos; + fields[0].tap = xscale->jtag_info.tap; fields[0].num_bits = 3; fields[0].out_value = &field0_out; - fields[0].out_mask = NULL; fields[0].in_value = &field0_in; - fields[0].in_check_value = &field0_check_value; - fields[0].in_check_mask = &field0_check_mask; - fields[0].in_handler = NULL; - fields[0].in_handler_priv = NULL; - fields[1].device = xscale->jtag_info.chain_pos; + fields[1].tap = xscale->jtag_info.tap; fields[1].num_bits = 32; fields[1].out_value = xscale->reg_cache->reg_list[XSCALE_RX].value; - fields[1].out_mask = NULL; fields[1].in_value = NULL; - fields[1].in_handler = NULL; - fields[1].in_handler_priv = NULL; - fields[1].in_check_value = NULL; - fields[1].in_check_mask = NULL; + - fields[2].device = xscale->jtag_info.chain_pos; + fields[2].tap = xscale->jtag_info.tap; fields[2].num_bits = 1; fields[2].out_value = &field2; - fields[2].out_mask = NULL; - fields[2].in_value = NULL; - fields[2].in_check_value = &field2_check_value; - fields[2].in_check_mask = &field2_check_mask; - fields[2].in_handler = NULL; - fields[2].in_handler_priv = NULL; + u8 tmp; + fields[2].in_value = &tmp; gettimeofday(&timeout, NULL); - timeval_add_time(&timeout, 5, 0); + timeval_add_time(&timeout, 1, 0); /* poll until rx_read is low */ - do + LOG_DEBUG("polling RX"); + for (;;) { - DEBUG("polling RX"); - jtag_add_dr_scan(3, fields, TAP_RTI, NULL); + jtag_add_dr_scan(3, fields, TAP_IDLE); + + jtag_check_value_mask(fields+0, &field0_check_value, &field0_check_mask); + jtag_check_value_mask(fields+2, &field2_check_value, &field2_check_mask); if ((retval = jtag_execute_queue()) != ERROR_OK) { - ERROR("JTAG error while writing RX"); - exit(-1); + LOG_ERROR("JTAG error while writing RX"); + return retval; } gettimeofday(&now, NULL); - if ((now.tv_sec > timeout.tv_sec) && (now.tv_usec > timeout.tv_usec)) + if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec)&& (now.tv_usec > timeout.tv_usec))) { - ERROR("time out writing RX register"); + LOG_ERROR("time out writing RX register"); return ERROR_TARGET_TIMEOUT; } - } while (field0_in & 1); + if (!(field0_in & 1)) + goto done; + if (debug_level>=3) + { + LOG_DEBUG("waiting 100ms"); + alive_sleep(100); /* avoid flooding the logs */ + } else + { + keep_alive(); + } + } + done: /* set rx_valid */ field2 = 0x1; - jtag_add_dr_scan(3, fields, TAP_RTI, NULL); + jtag_add_dr_scan(3, fields, TAP_IDLE); if ((retval = jtag_execute_queue()) != ERROR_OK) { - ERROR("JTAG error while writing RX"); - exit(-1); + LOG_ERROR("JTAG error while writing RX"); + return retval; } return ERROR_OK; @@ -613,84 +616,64 @@ int xscale_send(target_t *target, u8 *buffer, int count, int size) { armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; + u32 t[3]; + int bits[3]; int retval; int done_count = 0; - u8 output[4] = {0, 0, 0, 0}; - - scan_field_t fields[3]; - u8 field0_out = 0x0; - u8 field0_in = 0x0; - u8 field0_check_value = 0x2; - u8 field0_check_mask = 0x6; - u8 field2 = 0x1; - u8 field2_check_value = 0x0; - u8 field2_check_mask = 0x1; - - jtag_add_end_state(TAP_RTI); - - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.dbgrx); - - fields[0].device = xscale->jtag_info.chain_pos; - fields[0].num_bits = 3; - fields[0].out_value = &field0_out; - fields[0].out_mask = NULL; - fields[0].in_value = &field0_in; - fields[0].in_check_value = &field0_check_value; - fields[0].in_check_mask = &field0_check_mask; - fields[0].in_handler = NULL; - fields[0].in_handler_priv = NULL; - fields[1].device = xscale->jtag_info.chain_pos; - fields[1].num_bits = 32; - fields[1].out_value = output; - fields[1].out_mask = NULL; - fields[1].in_value = NULL; - fields[1].in_handler = NULL; - fields[1].in_handler_priv = NULL; - fields[1].in_check_value = NULL; - fields[1].in_check_mask = NULL; + jtag_add_end_state(TAP_IDLE); - fields[2].device = xscale->jtag_info.chain_pos; - fields[2].num_bits = 1; - fields[2].out_value = &field2; - fields[2].out_mask = NULL; - fields[2].in_value = NULL; - fields[2].in_check_value = &field2_check_value; - fields[2].in_check_mask = &field2_check_mask; - fields[2].in_handler = NULL; - fields[2].in_handler_priv = NULL; + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.dbgrx); + bits[0]=3; + t[0]=0; + bits[1]=32; + t[2]=1; + bits[2]=1; + int endianness = target->endianness; while (done_count++ < count) { - /* extract sized element from target-endian buffer, and put it - * into little-endian output buffer - */ switch (size) { - case 4: - buf_set_u32(output, 0, 32, target_buffer_get_u32(target, buffer)); - break; - case 2: - buf_set_u32(output, 0, 32, target_buffer_get_u16(target, buffer)); - break; - case 1: - output[0] = *buffer; - break; - default: - ERROR("BUG: size neither 4, 2 nor 1"); - exit(-1); + case 4: + if (endianness == TARGET_LITTLE_ENDIAN) + { + t[1]=le_to_h_u32(buffer); + } else + { + t[1]=be_to_h_u32(buffer); + } + break; + case 2: + if (endianness == TARGET_LITTLE_ENDIAN) + { + t[1]=le_to_h_u16(buffer); + } else + { + t[1]=be_to_h_u16(buffer); + } + break; + case 1: + t[1]=buffer[0]; + break; + default: + LOG_ERROR("BUG: size neither 4, 2 nor 1"); + exit(-1); } - - jtag_add_dr_scan(3, fields, TAP_RTI, NULL); + jtag_add_dr_out(xscale->jtag_info.tap, + 3, + bits, + t, + TAP_IDLE); buffer += size; } if ((retval = jtag_execute_queue()) != ERROR_OK) { - ERROR("JTAG error while sending data to debug handler"); - exit(-1); + LOG_ERROR("JTAG error while sending data to debug handler"); + return retval; } return ERROR_OK; @@ -726,48 +709,39 @@ int xscale_write_dcsr(target_t *target, int hold_rst, int ext_dbg_brk) if (ext_dbg_brk != -1) xscale->external_debug_break = ext_dbg_brk; - jtag_add_end_state(TAP_RTI); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.dcsr); + jtag_add_end_state(TAP_IDLE); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.dcsr); buf_set_u32(&field0, 1, 1, xscale->hold_rst); buf_set_u32(&field0, 2, 1, xscale->external_debug_break); - fields[0].device = xscale->jtag_info.chain_pos; + fields[0].tap = xscale->jtag_info.tap; fields[0].num_bits = 3; fields[0].out_value = &field0; - fields[0].out_mask = NULL; - fields[0].in_value = NULL; - fields[0].in_check_value = &field0_check_value; - fields[0].in_check_mask = &field0_check_mask; - fields[0].in_handler = NULL; - fields[0].in_handler_priv = NULL; + u8 tmp; + fields[0].in_value = &tmp; - fields[1].device = xscale->jtag_info.chain_pos; + fields[1].tap = xscale->jtag_info.tap; fields[1].num_bits = 32; fields[1].out_value = xscale->reg_cache->reg_list[XSCALE_DCSR].value; - fields[1].out_mask = NULL; fields[1].in_value = NULL; - fields[1].in_handler = NULL; - fields[1].in_handler_priv = NULL; - fields[1].in_check_value = NULL; - fields[1].in_check_mask = NULL; + - fields[2].device = xscale->jtag_info.chain_pos; + fields[2].tap = xscale->jtag_info.tap; fields[2].num_bits = 1; fields[2].out_value = &field2; - fields[2].out_mask = NULL; - fields[2].in_value = NULL; - fields[2].in_check_value = &field2_check_value; - fields[2].in_check_mask = &field2_check_mask; - fields[2].in_handler = NULL; - fields[2].in_handler_priv = NULL; + u8 tmp2; + fields[2].in_value = &tmp2; + + jtag_add_dr_scan(3, fields, TAP_INVALID); - jtag_add_dr_scan(3, fields, -1, NULL); + jtag_check_value_mask(fields+0, &field0_check_value, &field0_check_mask); + jtag_check_value_mask(fields+2, &field2_check_value, &field2_check_mask); if ((retval = jtag_execute_queue()) != ERROR_OK) { - ERROR("JTAG error while writing DCSR"); - exit(-1); + LOG_ERROR("JTAG error while writing DCSR"); + return retval; } xscale->reg_cache->reg_list[XSCALE_DCSR].dirty = 0; @@ -784,7 +758,7 @@ unsigned int parity (unsigned int v) v ^= v >> 8; v ^= v >> 4; v &= 0xf; - DEBUG("parity of 0x%x is %i", ov, (0x6996 >> v) & 1); + LOG_DEBUG("parity of 0x%x is %i", ov, (0x6996 >> v) & 1); return (0x6996 >> v) & 1; } @@ -798,10 +772,10 @@ int xscale_load_ic(target_t *target, int mini, u32 va, u32 buffer[8]) scan_field_t fields[2]; - DEBUG("loading miniIC at 0x%8.8x", va); + LOG_DEBUG("loading miniIC at 0x%8.8x", va); - jtag_add_end_state(TAP_RTI); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.ldic); /* LDIC */ + jtag_add_end_state(TAP_IDLE); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.ldic); /* LDIC */ /* CMD is b010 for Main IC and b011 for Mini IC */ if (mini) @@ -814,27 +788,27 @@ int xscale_load_ic(target_t *target, int mini, u32 va, u32 buffer[8]) /* virtual address of desired cache line */ buf_set_u32(packet, 0, 27, va >> 5); - fields[0].device = xscale->jtag_info.chain_pos; + fields[0].tap = xscale->jtag_info.tap; fields[0].num_bits = 6; fields[0].out_value = &cmd; - fields[0].out_mask = NULL; + fields[0].in_value = NULL; - fields[0].in_check_value = NULL; - fields[0].in_check_mask = NULL; - fields[0].in_handler = NULL; - fields[0].in_handler_priv = NULL; - fields[1].device = xscale->jtag_info.chain_pos; + + + + + fields[1].tap = xscale->jtag_info.tap; fields[1].num_bits = 27; fields[1].out_value = packet; - fields[1].out_mask = NULL; + fields[1].in_value = NULL; - fields[1].in_check_value = NULL; - fields[1].in_check_mask = NULL; - fields[1].in_handler = NULL; - fields[1].in_handler_priv = NULL; - jtag_add_dr_scan(2, fields, -1, NULL); + + + + + jtag_add_dr_scan(2, fields, TAP_INVALID); fields[0].num_bits = 32; fields[0].out_value = packet; @@ -845,8 +819,12 @@ int xscale_load_ic(target_t *target, int mini, u32 va, u32 buffer[8]) for (word = 0; word < 8; word++) { buf_set_u32(packet, 0, 32, buffer[word]); - cmd = parity(*((u32*)packet)); - jtag_add_dr_scan(2, fields, -1, NULL); + + u32 value; + memcpy(&value, packet, sizeof(u32)); + cmd = parity(value); + + jtag_add_dr_scan(2, fields, TAP_INVALID); } jtag_execute_queue(); @@ -863,8 +841,8 @@ int xscale_invalidate_ic_line(target_t *target, u32 va) scan_field_t fields[2]; - jtag_add_end_state(TAP_RTI); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.ldic); /* LDIC */ + jtag_add_end_state(TAP_IDLE); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.ldic); /* LDIC */ /* CMD for invalidate IC line b000, bits [6:4] b000 */ buf_set_u32(&cmd, 0, 6, 0x0); @@ -872,27 +850,27 @@ int xscale_invalidate_ic_line(target_t *target, u32 va) /* virtual address of desired cache line */ buf_set_u32(packet, 0, 27, va >> 5); - fields[0].device = xscale->jtag_info.chain_pos; + fields[0].tap = xscale->jtag_info.tap; fields[0].num_bits = 6; fields[0].out_value = &cmd; - fields[0].out_mask = NULL; + fields[0].in_value = NULL; - fields[0].in_check_value = NULL; - fields[0].in_check_mask = NULL; - fields[0].in_handler = NULL; - fields[0].in_handler_priv = NULL; - fields[1].device = xscale->jtag_info.chain_pos; + + + + + fields[1].tap = xscale->jtag_info.tap; fields[1].num_bits = 27; fields[1].out_value = packet; - fields[1].out_mask = NULL; + fields[1].in_value = NULL; - fields[1].in_check_value = NULL; - fields[1].in_check_mask = NULL; - fields[1].in_handler = NULL; - fields[1].in_handler_priv = NULL; - jtag_add_dr_scan(2, fields, -1, NULL); + + + + + jtag_add_dr_scan(2, fields, TAP_INVALID); return ERROR_OK; } @@ -902,6 +880,7 @@ int xscale_update_vectors(target_t *target) armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; int i; + int retval; u32 low_reset_branch, high_reset_branch; @@ -914,8 +893,12 @@ int xscale_update_vectors(target_t *target) } else { - if (target_read_u32(target, 0xffff0000 + 4*i, &xscale->high_vectors[i]) != ERROR_OK) + retval=target_read_u32(target, 0xffff0000 + 4*i, &xscale->high_vectors[i]); + if (retval == ERROR_TARGET_TIMEOUT) + return retval; + if (retval!=ERROR_OK) { + /* Some of these reads will fail as part of normal execution */ xscale->high_vectors[i] = ARMV4_5_B(0xfffffe, 0); } } @@ -929,8 +912,12 @@ int xscale_update_vectors(target_t *target) } else { - if (target_read_u32(target, 0x0 + 4*i, &xscale->low_vectors[i]) != ERROR_OK) + retval=target_read_u32(target, 0x0 + 4*i, &xscale->low_vectors[i]); + if (retval == ERROR_TARGET_TIMEOUT) + return retval; + if (retval!=ERROR_OK) { + /* Some of these reads will fail as part of normal execution */ xscale->low_vectors[i] = ARMV4_5_B(0xfffffe, 0); } } @@ -953,7 +940,7 @@ int xscale_update_vectors(target_t *target) return ERROR_OK; } -int xscale_arch_state(struct target_s *target, char *buf, int buf_size) +int xscale_arch_state(struct target_s *target) { armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; @@ -970,17 +957,16 @@ int xscale_arch_state(struct target_s *target, char *buf, int buf_size) if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC) { - ERROR("BUG: called for a non-ARMv4/5 target"); + LOG_ERROR("BUG: called for a non-ARMv4/5 target"); exit(-1); } - snprintf(buf, buf_size, - "target halted in %s state due to %s, current mode: %s\n" + LOG_USER("target halted in %s state due to %s, current mode: %s\n" "cpsr: 0x%8.8x pc: 0x%8.8x\n" "MMU: %s, D-Cache: %s, I-Cache: %s" "%s", armv4_5_state_strings[armv4_5->core_state], - target_debug_reason_strings[target->debug_reason], + Jim_Nvp_value2name_simple( nvp_target_debug_reason, target->debug_reason )->name , armv4_5_mode_strings[armv4_5_mode_to_number(armv4_5->core_mode)], buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32), buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32), @@ -992,17 +978,17 @@ int xscale_arch_state(struct target_s *target, char *buf, int buf_size) return ERROR_OK; } -enum target_state xscale_poll(target_t *target) +int xscale_poll(target_t *target) { - int retval; + int retval=ERROR_OK; armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; if ((target->state == TARGET_RUNNING) || (target->state == TARGET_DEBUG_RUNNING)) { + enum target_state previous_state = target->state; if ((retval = xscale_read_tx(target, 0)) == ERROR_OK) { - enum target_state previous_state = target->state; /* there's data to read from the tx register, we entered debug state */ xscale->handler_running = 1; @@ -1010,30 +996,30 @@ enum target_state xscale_poll(target_t *target) target->state = TARGET_HALTED; /* process debug entry, fetching current mode regs */ - if ((retval = xscale_debug_entry(target)) != ERROR_OK) - return retval; - - /* debug_entry could have overwritten target state (i.e. immediate resume) - * don't signal event handlers in that case - */ - if (target->state != TARGET_HALTED) - return target->state; - - /* if target was running, signal that we halted - * otherwise we reentered from debug execution */ - if (previous_state == TARGET_RUNNING) - target_call_event_callbacks(target, TARGET_EVENT_HALTED); - else - target_call_event_callbacks(target, TARGET_EVENT_DEBUG_HALTED); + retval = xscale_debug_entry(target); } else if (retval != ERROR_TARGET_RESOURCE_NOT_AVAILABLE) { - ERROR("error while polling TX register"); - exit(-1); + LOG_USER("error while polling TX register, reset CPU"); + /* here we "lie" so GDB won't get stuck and a reset can be perfomed */ + target->state = TARGET_HALTED; } + + /* debug_entry could have overwritten target state (i.e. immediate resume) + * don't signal event handlers in that case + */ + if (target->state != TARGET_HALTED) + return ERROR_OK; + + /* if target was running, signal that we halted + * otherwise we reentered from debug execution */ + if (previous_state == TARGET_RUNNING) + target_call_event_callbacks(target, TARGET_EVENT_HALTED); + else + target_call_event_callbacks(target, TARGET_EVENT_DEBUG_HALTED); } - return target->state; + return retval; } int xscale_debug_entry(target_t *target) @@ -1041,29 +1027,32 @@ int xscale_debug_entry(target_t *target) armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; u32 pc; - u32 *buffer = malloc(4 * 10); + u32 buffer[10]; int i; + int retval; u32 moe; /* clear external dbg break (will be written on next DCSR read) */ xscale->external_debug_break = 0; - xscale_read_dcsr(target); + if ((retval=xscale_read_dcsr(target))!=ERROR_OK) + return retval; /* get r0, pc, r1 to r7 and cpsr */ - xscale_receive(target, buffer, 10); + if ((retval=xscale_receive(target, buffer, 10))!=ERROR_OK) + return retval; /* move r0 from buffer to register cache */ buf_set_u32(armv4_5->core_cache->reg_list[0].value, 0, 32, buffer[0]); armv4_5->core_cache->reg_list[15].dirty = 1; armv4_5->core_cache->reg_list[15].valid = 1; - DEBUG("r0: 0x%8.8x", buffer[0]); + LOG_DEBUG("r0: 0x%8.8x", buffer[0]); /* move pc from buffer to register cache */ buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, buffer[1]); armv4_5->core_cache->reg_list[15].dirty = 1; armv4_5->core_cache->reg_list[15].valid = 1; - DEBUG("pc: 0x%8.8x", buffer[1]); + LOG_DEBUG("pc: 0x%8.8x", buffer[1]); /* move data from buffer to register cache */ for (i = 1; i <= 7; i++) @@ -1071,28 +1060,32 @@ int xscale_debug_entry(target_t *target) buf_set_u32(armv4_5->core_cache->reg_list[i].value, 0, 32, buffer[1 + i]); armv4_5->core_cache->reg_list[i].dirty = 1; armv4_5->core_cache->reg_list[i].valid = 1; - DEBUG("r%i: 0x%8.8x", i, buffer[i + 1]); + LOG_DEBUG("r%i: 0x%8.8x", i, buffer[i + 1]); } buf_set_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32, buffer[9]); armv4_5->core_cache->reg_list[ARMV4_5_CPSR].dirty = 1; armv4_5->core_cache->reg_list[ARMV4_5_CPSR].valid = 1; - DEBUG("cpsr: 0x%8.8x", buffer[9]); + LOG_DEBUG("cpsr: 0x%8.8x", buffer[9]); armv4_5->core_mode = buffer[9] & 0x1f; if (armv4_5_mode_to_number(armv4_5->core_mode) == -1) { target->state = TARGET_UNKNOWN; - ERROR("cpsr contains invalid mode value - communication failure"); + LOG_ERROR("cpsr contains invalid mode value - communication failure"); return ERROR_TARGET_FAILURE; } - DEBUG("target entered debug state in %s mode", armv4_5_mode_strings[armv4_5_mode_to_number(armv4_5->core_mode)]); + LOG_DEBUG("target entered debug state in %s mode", armv4_5_mode_strings[armv4_5_mode_to_number(armv4_5->core_mode)]); if (buffer[9] & 0x20) armv4_5->core_state = ARMV4_5_STATE_THUMB; else armv4_5->core_state = ARMV4_5_STATE_ARM; + + if (armv4_5_mode_to_number(armv4_5->core_mode)==-1) + return ERROR_FAIL; + /* get banked registers, r8 to r14, and spsr if not in USR/SYS mode */ if ((armv4_5->core_mode != ARMV4_5_MODE_USR) && (armv4_5->core_mode != ARMV4_5_MODE_SYS)) { @@ -1161,7 +1154,7 @@ int xscale_debug_entry(target_t *target) break; case 0x7: /* Reserved */ default: - ERROR("Method of Entry is 'Reserved'"); + LOG_ERROR("Method of Entry is 'Reserved'"); exit(-1); break; } @@ -1215,22 +1208,23 @@ int xscale_halt(target_t *target) armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; - DEBUG("target->state: %s", target_state_strings[target->state]); + LOG_DEBUG("target->state: %s", + Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name); if (target->state == TARGET_HALTED) { - WARNING("target was already halted"); - return ERROR_TARGET_ALREADY_HALTED; + LOG_DEBUG("target was already halted"); + return ERROR_OK; } else if (target->state == TARGET_UNKNOWN) { /* this must not happen for a xscale target */ - ERROR("target was in unknown state when halt was requested"); - exit(-1); + LOG_ERROR("target was in unknown state when halt was requested"); + return ERROR_TARGET_INVALID; } else if (target->state == TARGET_RESET) { - DEBUG("target->state == TARGET_RESET"); + LOG_DEBUG("target->state == TARGET_RESET"); } else { @@ -1249,6 +1243,7 @@ int xscale_enable_single_step(struct target_s *target, u32 next_pc) armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale= armv4_5->arch_info; reg_t *ibcr0 = &xscale->reg_cache->reg_list[XSCALE_IBCR0]; + int retval; if (xscale->ibcr0_used) { @@ -1260,12 +1255,13 @@ int xscale_enable_single_step(struct target_s *target, u32 next_pc) } else { - ERROR("BUG: xscale->ibcr0_used is set, but no breakpoint with that address found"); + LOG_ERROR("BUG: xscale->ibcr0_used is set, but no breakpoint with that address found"); exit(-1); } } - xscale_set_reg_u32(ibcr0, next_pc | 0x1); + if ((retval=xscale_set_reg_u32(ibcr0, next_pc | 0x1))!=ERROR_OK) + return retval; return ERROR_OK; } @@ -1275,8 +1271,10 @@ int xscale_disable_single_step(struct target_s *target) armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale= armv4_5->arch_info; reg_t *ibcr0 = &xscale->reg_cache->reg_list[XSCALE_IBCR0]; + int retval; - xscale_set_reg_u32(ibcr0, 0x0); + if ((retval=xscale_set_reg_u32(ibcr0, 0x0))!=ERROR_OK) + return retval; return ERROR_OK; } @@ -1292,11 +1290,11 @@ int xscale_resume(struct target_s *target, int current, u32 address, int handle_ int retval; int i; - DEBUG("-"); + LOG_DEBUG("-"); if (target->state != TARGET_HALTED) { - WARNING("target not halted"); + LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -1306,7 +1304,8 @@ int xscale_resume(struct target_s *target, int current, u32 address, int handle_ } /* update vector tables */ - xscale_update_vectors(target); + if ((retval=xscale_update_vectors(target))!=ERROR_OK) + return retval; /* current = 1: continue on current pc, otherwise continue at
*/ if (!current) @@ -1329,7 +1328,7 @@ int xscale_resume(struct target_s *target, int current, u32 address, int handle_ u32 next_pc; /* there's a breakpoint at the current PC, we have to step over it */ - DEBUG("unset breakpoint at 0x%8.8x", breakpoint->address); + LOG_DEBUG("unset breakpoint at 0x%8.8x", breakpoint->address); xscale_unset_breakpoint(target, breakpoint); /* calculate PC of next instruction */ @@ -1337,10 +1336,10 @@ int xscale_resume(struct target_s *target, int current, u32 address, int handle_ { u32 current_opcode; target_read_u32(target, current_pc, ¤t_opcode); - ERROR("BUG: couldn't calculate PC of next instruction, current opcode was 0x%8.8x", current_opcode); + LOG_ERROR("BUG: couldn't calculate PC of next instruction, current opcode was 0x%8.8x", current_opcode); } - DEBUG("enable single-step"); + LOG_DEBUG("enable single-step"); xscale_enable_single_step(target, next_pc); /* restore banked registers */ @@ -1358,26 +1357,26 @@ int xscale_resume(struct target_s *target, int current, u32 address, int handle_ /* send CPSR */ xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32)); - DEBUG("writing cpsr with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32)); + LOG_DEBUG("writing cpsr with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32)); for (i = 7; i >= 0; i--) { /* send register */ xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[i].value, 0, 32)); - DEBUG("writing r%i with value 0x%8.8x", i, buf_get_u32(armv4_5->core_cache->reg_list[i].value, 0, 32)); + LOG_DEBUG("writing r%i with value 0x%8.8x", i, buf_get_u32(armv4_5->core_cache->reg_list[i].value, 0, 32)); } /* send PC */ xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)); - DEBUG("writing PC with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)); + LOG_DEBUG("writing PC with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)); /* wait for and process debug entry */ xscale_debug_entry(target); - DEBUG("disable single-step"); + LOG_DEBUG("disable single-step"); xscale_disable_single_step(target); - DEBUG("set breakpoint at 0x%8.8x", breakpoint->address); + LOG_DEBUG("set breakpoint at 0x%8.8x", breakpoint->address); xscale_set_breakpoint(target, breakpoint); } } @@ -1401,18 +1400,18 @@ int xscale_resume(struct target_s *target, int current, u32 address, int handle_ /* send CPSR */ xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32)); - DEBUG("writing cpsr with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32)); + LOG_DEBUG("writing cpsr with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32)); for (i = 7; i >= 0; i--) { /* send register */ xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[i].value, 0, 32)); - DEBUG("writing r%i with value 0x%8.8x", i, buf_get_u32(armv4_5->core_cache->reg_list[i].value, 0, 32)); + LOG_DEBUG("writing r%i with value 0x%8.8x", i, buf_get_u32(armv4_5->core_cache->reg_list[i].value, 0, 32)); } /* send PC */ xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)); - DEBUG("writing PC with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)); + LOG_DEBUG("writing PC with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)); target->debug_reason = DBG_REASON_NOTHALTED; @@ -1429,114 +1428,142 @@ int xscale_resume(struct target_s *target, int current, u32 address, int handle_ target_call_event_callbacks(target, TARGET_EVENT_DEBUG_RESUMED); } - DEBUG("target resumed"); + LOG_DEBUG("target resumed"); xscale->handler_running = 1; return ERROR_OK; } -int xscale_step(struct target_s *target, int current, u32 address, int handle_breakpoints) +static int xscale_step_inner(struct target_s *target, int current, u32 address, int handle_breakpoints) { armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; - breakpoint_t *breakpoint = target->breakpoints; - u32 current_pc, next_pc; - int i; + u32 next_pc; int retval; - - if (target->state != TARGET_HALTED) - { - WARNING("target not halted"); - return ERROR_TARGET_NOT_HALTED; - } - - /* current = 1: continue on current pc, otherwise continue at
*/ - if (!current) - buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, address); - - current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32); - - /* if we're at the reset vector, we have to simulate the step */ - if (current_pc == 0x0) - { - arm_simulate_step(target, NULL); - current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32); - - target->debug_reason = DBG_REASON_SINGLESTEP; - target_call_event_callbacks(target, TARGET_EVENT_HALTED); - - return ERROR_OK; - } - - /* the front-end may request us not to handle breakpoints */ - if (handle_breakpoints) - if ((breakpoint = breakpoint_find(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)))) - { - xscale_unset_breakpoint(target, breakpoint); - } + int i; target->debug_reason = DBG_REASON_SINGLESTEP; /* calculate PC of next instruction */ if ((retval = arm_simulate_step(target, &next_pc)) != ERROR_OK) { - u32 current_opcode; + u32 current_opcode, current_pc; + current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32); + target_read_u32(target, current_pc, ¤t_opcode); - ERROR("BUG: couldn't calculate PC of next instruction, current opcode was 0x%8.8x", current_opcode); + LOG_ERROR("BUG: couldn't calculate PC of next instruction, current opcode was 0x%8.8x", current_opcode); + return retval; } - DEBUG("enable single-step"); - xscale_enable_single_step(target, next_pc); + LOG_DEBUG("enable single-step"); + if ((retval=xscale_enable_single_step(target, next_pc))!=ERROR_OK) + return retval; /* restore banked registers */ - xscale_restore_context(target); + if ((retval=xscale_restore_context(target))!=ERROR_OK) + return retval; /* send resume request (command 0x30 or 0x31) * clean the trace buffer if it is to be enabled (0x62) */ if (xscale->trace.buffer_enabled) { - xscale_send_u32(target, 0x62); - xscale_send_u32(target, 0x31); + if ((retval=xscale_send_u32(target, 0x62))!=ERROR_OK) + return retval; + if ((retval=xscale_send_u32(target, 0x31))!=ERROR_OK) + return retval; } else - xscale_send_u32(target, 0x30); + if ((retval=xscale_send_u32(target, 0x30))!=ERROR_OK) + return retval; /* send CPSR */ - xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32)); - DEBUG("writing cpsr with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32)); + if ((retval=xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32)))!=ERROR_OK) + return retval; + LOG_DEBUG("writing cpsr with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32)); for (i = 7; i >= 0; i--) { /* send register */ - xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[i].value, 0, 32)); - DEBUG("writing r%i with value 0x%8.8x", i, buf_get_u32(armv4_5->core_cache->reg_list[i].value, 0, 32)); + if ((retval=xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[i].value, 0, 32)))!=ERROR_OK) + return retval; + LOG_DEBUG("writing r%i with value 0x%8.8x", i, buf_get_u32(armv4_5->core_cache->reg_list[i].value, 0, 32)); } /* send PC */ - xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)); - DEBUG("writing PC with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)); + if ((retval=xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)))!=ERROR_OK) + return retval; + LOG_DEBUG("writing PC with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)); target_call_event_callbacks(target, TARGET_EVENT_RESUMED); /* registers are now invalid */ - armv4_5_invalidate_core_regs(target); + if ((retval=armv4_5_invalidate_core_regs(target))!=ERROR_OK) + return retval; /* wait for and process debug entry */ - xscale_debug_entry(target); + if ((retval=xscale_debug_entry(target))!=ERROR_OK) + return retval; - DEBUG("disable single-step"); - xscale_disable_single_step(target); + LOG_DEBUG("disable single-step"); + if ((retval=xscale_disable_single_step(target))!=ERROR_OK) + return retval; target_call_event_callbacks(target, TARGET_EVENT_HALTED); + return ERROR_OK; +} + +int xscale_step(struct target_s *target, int current, u32 address, int handle_breakpoints) +{ + armv4_5_common_t *armv4_5 = target->arch_info; + breakpoint_t *breakpoint = target->breakpoints; + + u32 current_pc; + int retval; + + if (target->state != TARGET_HALTED) + { + LOG_WARNING("target not halted"); + return ERROR_TARGET_NOT_HALTED; + } + + /* current = 1: continue on current pc, otherwise continue at
*/ + if (!current) + buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, address); + + current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32); + + /* if we're at the reset vector, we have to simulate the step */ + if (current_pc == 0x0) + { + if ((retval=arm_simulate_step(target, NULL))!=ERROR_OK) + return retval; + current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32); + + target->debug_reason = DBG_REASON_SINGLESTEP; + target_call_event_callbacks(target, TARGET_EVENT_HALTED); + + return ERROR_OK; + } + + /* the front-end may request us not to handle breakpoints */ + if (handle_breakpoints) + if ((breakpoint = breakpoint_find(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)))) + { + if ((retval=xscale_unset_breakpoint(target, breakpoint))!=ERROR_OK) + return retval; + } + + retval = xscale_step_inner(target, current, address, handle_breakpoints); + if (breakpoint) { xscale_set_breakpoint(target, breakpoint); } - DEBUG("target stepped"); + LOG_DEBUG("target stepped"); return ERROR_OK; @@ -1547,13 +1574,14 @@ int xscale_assert_reset(target_t *target) armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; - DEBUG("target->state: %s", target_state_strings[target->state]); + LOG_DEBUG("target->state: %s", + Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name); /* select DCSR instruction (set endstate to R-T-I to ensure we don't * end up in T-L-R, which would reset JTAG */ - jtag_add_end_state(TAP_RTI); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.dcsr); + jtag_add_end_state(TAP_IDLE); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.dcsr); /* set Hold reset, Halt mode and Trap Reset */ buf_set_u32(xscale->reg_cache->reg_list[XSCALE_DCSR].value, 30, 1, 0x1); @@ -1561,7 +1589,7 @@ int xscale_assert_reset(target_t *target) xscale_write_dcsr(target, 1, 0); /* select BYPASS, because having DCSR selected caused problems on the PXA27x */ - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, 0x7f); + xscale_jtag_set_instr(xscale->jtag_info.tap, 0x7f); jtag_execute_queue(); /* assert reset */ @@ -1573,6 +1601,13 @@ int xscale_assert_reset(target_t *target) target->state = TARGET_RESET; + if (target->reset_halt) + { + int retval; + if ((retval = target_halt(target))!=ERROR_OK) + return retval; + } + return ERROR_OK; } @@ -1586,12 +1621,12 @@ int xscale_deassert_reset(target_t *target) u32 binary_size; u32 buf_cnt; - int i; + u32 i; int retval; breakpoint_t *breakpoint = target->breakpoints; - DEBUG("-"); + LOG_DEBUG("-"); xscale->ibcr_available = 2; xscale->ibcr0_used = 0; @@ -1617,9 +1652,9 @@ int xscale_deassert_reset(target_t *target) jtag_add_reset(0, 0); /* wait 300ms; 150 and 100ms were not enough */ - jtag_add_sleep(3000000); + jtag_add_sleep(300*1000); - jtag_add_runtest(2030, TAP_RTI); + jtag_add_runtest(2030, TAP_IDLE); jtag_execute_queue(); /* set Hold reset, Halt mode and Trap Reset */ @@ -1628,21 +1663,20 @@ int xscale_deassert_reset(target_t *target) xscale_write_dcsr(target, 1, 0); /* Load debug handler */ - if (fileio_open(&debug_handler, PKGLIBDIR "/xscale/debug_handler.bin", FILEIO_READ, FILEIO_BINARY) != ERROR_OK) + if (fileio_open(&debug_handler, "xscale/debug_handler.bin", FILEIO_READ, FILEIO_BINARY) != ERROR_OK) { - ERROR("file open error: %s", debug_handler.error_str); return ERROR_OK; } if ((binary_size = debug_handler.size) % 4) { - ERROR("debug_handler.bin: size not a multiple of 4"); + LOG_ERROR("debug_handler.bin: size not a multiple of 4"); exit(-1); } if (binary_size > 0x800) { - ERROR("debug_handler.bin: larger than 2kb"); + LOG_ERROR("debug_handler.bin: larger than 2kb"); exit(-1); } @@ -1656,7 +1690,7 @@ int xscale_deassert_reset(target_t *target) if ((retval = fileio_read(&debug_handler, 32, buffer, &buf_cnt)) != ERROR_OK) { - ERROR("reading debug handler failed: %s", debug_handler.error_str); + } for (i = 0; i < buf_cnt; i += 4) @@ -1667,7 +1701,7 @@ int xscale_deassert_reset(target_t *target) for (; buf_cnt < 32; buf_cnt += 4) { - cache_line[buf_cnt / 4] = 0xe1a08008; + cache_line[buf_cnt / 4] = 0xe1a08008; } /* only load addresses other than the reset vectors */ @@ -1683,7 +1717,7 @@ int xscale_deassert_reset(target_t *target) xscale_load_ic(target, 1, 0x0, xscale->low_vectors); xscale_load_ic(target, 1, 0xffff0000, xscale->high_vectors); - jtag_add_runtest(30, TAP_RTI); + jtag_add_runtest(30, TAP_IDLE); jtag_add_sleep(100000); @@ -1696,7 +1730,7 @@ int xscale_deassert_reset(target_t *target) xscale_write_dcsr(target, 0, 1); target->state = TARGET_RUNNING; - if ((target->reset_mode != RESET_HALT) && (target->reset_mode != RESET_INIT)) + if (!target->reset_halt) { jtag_add_sleep(10000); @@ -1707,33 +1741,24 @@ int xscale_deassert_reset(target_t *target) /* resume the target */ xscale_resume(target, 1, 0x0, 1, 0); } + + fileio_close(&debug_handler); } else { jtag_add_reset(0, 0); } - return ERROR_OK; } int xscale_soft_reset_halt(struct target_s *target) { - - return ERROR_OK; -} - -int xscale_prepare_reset_halt(struct target_s *target) -{ - /* nothing to be done for reset_halt on XScale targets - * we always halt after a reset to upload the debug handler - */ return ERROR_OK; } int xscale_read_core_reg(struct target_s *target, int num, enum armv4_5_mode mode) { - return ERROR_OK; } @@ -1751,11 +1776,11 @@ int xscale_full_context(target_t *target) int i, j; - DEBUG("-"); + LOG_DEBUG("-"); if (target->state != TARGET_HALTED) { - WARNING("target not halted"); + LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -1825,11 +1850,11 @@ int xscale_restore_context(target_t *target) int i, j; - DEBUG("-"); + LOG_DEBUG("-"); if (target->state != TARGET_HALTED) { - WARNING("target not halted"); + LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -1893,13 +1918,14 @@ int xscale_read_memory(struct target_s *target, u32 address, u32 size, u32 count armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; u32 *buf32; - int i; + u32 i; + int retval; - DEBUG("address: 0x%8.8x, size: 0x%8.8x, count: 0x%8.8x", address, size, count); + LOG_DEBUG("address: 0x%8.8x, size: 0x%8.8x, count: 0x%8.8x", address, size, count); if (target->state != TARGET_HALTED) { - WARNING("target not halted"); + LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -1911,17 +1937,21 @@ int xscale_read_memory(struct target_s *target, u32 address, u32 size, u32 count return ERROR_TARGET_UNALIGNED_ACCESS; /* send memory read request (command 0x1n, n: access size) */ - xscale_send_u32(target, 0x10 | size); + if ((retval=xscale_send_u32(target, 0x10 | size))!=ERROR_OK) + return retval; /* send base address for read request */ - xscale_send_u32(target, address); + if ((retval=xscale_send_u32(target, address))!=ERROR_OK) + return retval; /* send number of requested data words */ - xscale_send_u32(target, count); + if ((retval=xscale_send_u32(target, count))!=ERROR_OK) + return retval; /* receive data from target (count times 32-bit words in host endianness) */ buf32 = malloc(4 * count); - xscale_receive(target, buf32, count); + if ((retval=xscale_receive(target, buf32, count))!=ERROR_OK) + return retval; /* extract data from host-endian buffer into byte stream */ for (i = 0; i < count; i++) @@ -1940,7 +1970,7 @@ int xscale_read_memory(struct target_s *target, u32 address, u32 size, u32 count *buffer++ = buf32[i] & 0xff; break; default: - ERROR("should never get here"); + LOG_ERROR("should never get here"); exit(-1); } } @@ -1948,11 +1978,13 @@ int xscale_read_memory(struct target_s *target, u32 address, u32 size, u32 count free(buf32); /* examine DCSR, to see if Sticky Abort (SA) got set */ - xscale_read_dcsr(target); + if ((retval=xscale_read_dcsr(target))!=ERROR_OK) + return retval; if (buf_get_u32(xscale->reg_cache->reg_list[XSCALE_DCSR].value, 5, 1) == 1) { /* clear SA bit */ - xscale_send_u32(target, 0x60); + if ((retval=xscale_send_u32(target, 0x60))!=ERROR_OK) + return retval; return ERROR_TARGET_DATA_ABORT; } @@ -1964,12 +1996,13 @@ int xscale_write_memory(struct target_s *target, u32 address, u32 size, u32 coun { armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; + int retval; - DEBUG("address: 0x%8.8x, size: 0x%8.8x, count: 0x%8.8x", address, size, count); + LOG_DEBUG("address: 0x%8.8x, size: 0x%8.8x, count: 0x%8.8x", address, size, count); if (target->state != TARGET_HALTED) { - WARNING("target not halted"); + LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -1981,13 +2014,16 @@ int xscale_write_memory(struct target_s *target, u32 address, u32 size, u32 coun return ERROR_TARGET_UNALIGNED_ACCESS; /* send memory write request (command 0x2n, n: access size) */ - xscale_send_u32(target, 0x20 | size); + if ((retval=xscale_send_u32(target, 0x20 | size))!=ERROR_OK) + return retval; /* send base address for read request */ - xscale_send_u32(target, address); + if ((retval=xscale_send_u32(target, address))!=ERROR_OK) + return retval; /* send number of requested data words to be written*/ - xscale_send_u32(target, count); + if ((retval=xscale_send_u32(target, count))!=ERROR_OK) + return retval; /* extract data from host-endian buffer into byte stream */ #if 0 @@ -2011,19 +2047,22 @@ int xscale_write_memory(struct target_s *target, u32 address, u32 size, u32 coun buffer += 1; break; default: - ERROR("should never get here"); + LOG_ERROR("should never get here"); exit(-1); } } #endif - xscale_send(target, buffer, count, size); + if ((retval=xscale_send(target, buffer, count, size))!=ERROR_OK) + return retval; /* examine DCSR, to see if Sticky Abort (SA) got set */ - xscale_read_dcsr(target); + if ((retval=xscale_read_dcsr(target))!=ERROR_OK) + return retval; if (buf_get_u32(xscale->reg_cache->reg_list[XSCALE_DCSR].value, 5, 1) == 1) { /* clear SA bit */ - xscale_send_u32(target, 0x60); + if ((retval=xscale_send_u32(target, 0x60))!=ERROR_OK) + return retval; return ERROR_TARGET_DATA_ABORT; } @@ -2033,14 +2072,7 @@ int xscale_write_memory(struct target_s *target, u32 address, u32 size, u32 coun int xscale_bulk_write_memory(target_t *target, u32 address, u32 count, u8 *buffer) { - xscale_write_memory(target, address, 4, count, buffer); - - return ERROR_OK; -} - -int xscale_checksum_memory(struct target_s *target, u32 address, u32 count, u32* checksum) -{ - return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; + return xscale_write_memory(target, address, 4, count, buffer); } u32 xscale_get_ttb(target_t *target) @@ -2122,21 +2154,19 @@ void xscale_enable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_ca int xscale_set_breakpoint(struct target_s *target, breakpoint_t *breakpoint) { + int retval; armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; if (target->state != TARGET_HALTED) { - WARNING("target not halted"); + LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } - if (xscale->force_hw_bkpts) - breakpoint->type = BKPT_HARD; - if (breakpoint->set) { - WARNING("breakpoint already set"); + LOG_WARNING("breakpoint already set"); return ERROR_OK; } @@ -2157,7 +2187,7 @@ int xscale_set_breakpoint(struct target_s *target, breakpoint_t *breakpoint) } else { - ERROR("BUG: no hardware comparator available"); + LOG_ERROR("BUG: no hardware comparator available"); return ERROR_OK; } } @@ -2166,22 +2196,33 @@ int xscale_set_breakpoint(struct target_s *target, breakpoint_t *breakpoint) if (breakpoint->length == 4) { /* keep the original instruction in target endianness */ - target->type->read_memory(target, breakpoint->address, 4, 1, breakpoint->orig_instr); + if((retval = target->type->read_memory(target, breakpoint->address, 4, 1, breakpoint->orig_instr)) != ERROR_OK) + { + return retval; + } /* write the original instruction in target endianness (arm7_9->arm_bkpt is host endian) */ - target_write_u32(target, breakpoint->address, xscale->arm_bkpt); + if((retval = target_write_u32(target, breakpoint->address, xscale->arm_bkpt)) != ERROR_OK) + { + return retval; + } } else { /* keep the original instruction in target endianness */ - target->type->read_memory(target, breakpoint->address, 2, 1, breakpoint->orig_instr); + if((retval = target->type->read_memory(target, breakpoint->address, 2, 1, breakpoint->orig_instr)) != ERROR_OK) + { + return retval; + } /* write the original instruction in target endianness (arm7_9->arm_bkpt is host endian) */ - target_write_u32(target, breakpoint->address, xscale->thumb_bkpt); + if((retval = target_write_u32(target, breakpoint->address, xscale->thumb_bkpt)) != ERROR_OK) + { + return retval; + } } breakpoint->set = 1; } return ERROR_OK; - } int xscale_add_breakpoint(struct target_s *target, breakpoint_t *breakpoint) @@ -2191,49 +2232,45 @@ int xscale_add_breakpoint(struct target_s *target, breakpoint_t *breakpoint) if (target->state != TARGET_HALTED) { - WARNING("target not halted"); + LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } - if (xscale->force_hw_bkpts) - { - DEBUG("forcing use of hardware breakpoint at address 0x%8.8x", breakpoint->address); - breakpoint->type = BKPT_HARD; - } - if ((breakpoint->type == BKPT_HARD) && (xscale->ibcr_available < 1)) { - INFO("no breakpoint unit available for hardware breakpoint"); + LOG_INFO("no breakpoint unit available for hardware breakpoint"); return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; } - else - { - xscale->ibcr_available--; - } if ((breakpoint->length != 2) && (breakpoint->length != 4)) { - INFO("only breakpoints of two (Thumb) or four (ARM) bytes length supported"); + LOG_INFO("only breakpoints of two (Thumb) or four (ARM) bytes length supported"); return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; } + if (breakpoint->type == BKPT_HARD) + { + xscale->ibcr_available--; + } + return ERROR_OK; } int xscale_unset_breakpoint(struct target_s *target, breakpoint_t *breakpoint) { + int retval; armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; if (target->state != TARGET_HALTED) { - WARNING("target not halted"); + LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } if (!breakpoint->set) { - WARNING("breakpoint not set"); + LOG_WARNING("breakpoint not set"); return ERROR_OK; } @@ -2256,11 +2293,17 @@ int xscale_unset_breakpoint(struct target_s *target, breakpoint_t *breakpoint) /* restore original instruction (kept in target endianness) */ if (breakpoint->length == 4) { - target->type->write_memory(target, breakpoint->address, 4, 1, breakpoint->orig_instr); + if((retval = target->type->write_memory(target, breakpoint->address, 4, 1, breakpoint->orig_instr)) != ERROR_OK) + { + return retval; + } } else { - target->type->write_memory(target, breakpoint->address, 2, 1, breakpoint->orig_instr); + if((retval = target->type->write_memory(target, breakpoint->address, 2, 1, breakpoint->orig_instr)) != ERROR_OK) + { + return retval; + } } breakpoint->set = 0; } @@ -2275,7 +2318,7 @@ int xscale_remove_breakpoint(struct target_s *target, breakpoint_t *breakpoint) if (target->state != TARGET_HALTED) { - WARNING("target not halted"); + LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -2294,13 +2337,13 @@ int xscale_set_watchpoint(struct target_s *target, watchpoint_t *watchpoint) { armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; - u8 enable; + u8 enable=0; reg_t *dbcon = &xscale->reg_cache->reg_list[XSCALE_DBCON]; u32 dbcon_value = buf_get_u32(dbcon->value, 0, 32); if (target->state != TARGET_HALTED) { - WARNING("target not halted"); + LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -2318,7 +2361,7 @@ int xscale_set_watchpoint(struct target_s *target, watchpoint_t *watchpoint) enable = 0x1; break; default: - ERROR("BUG: watchpoint->rw neither read, write nor access"); + LOG_ERROR("BUG: watchpoint->rw neither read, write nor access"); } if (!xscale->dbr0_used) @@ -2339,7 +2382,7 @@ int xscale_set_watchpoint(struct target_s *target, watchpoint_t *watchpoint) } else { - ERROR("BUG: no hardware comparator available"); + LOG_ERROR("BUG: no hardware comparator available"); return ERROR_OK; } @@ -2353,7 +2396,7 @@ int xscale_add_watchpoint(struct target_s *target, watchpoint_t *watchpoint) if (target->state != TARGET_HALTED) { - WARNING("target not halted"); + LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -2381,13 +2424,13 @@ int xscale_unset_watchpoint(struct target_s *target, watchpoint_t *watchpoint) if (target->state != TARGET_HALTED) { - WARNING("target not halted"); + LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } if (!watchpoint->set) { - WARNING("breakpoint not set"); + LOG_WARNING("breakpoint not set"); return ERROR_OK; } @@ -2415,7 +2458,7 @@ int xscale_remove_watchpoint(struct target_s *target, watchpoint_t *watchpoint) if (target->state != TARGET_HALTED) { - WARNING("target not halted"); + LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } @@ -2593,7 +2636,7 @@ int xscale_read_trace(target_t *target) if (target->state != TARGET_HALTED) { - WARNING("target must be stopped to read trace data"); + LOG_WARNING("target must be stopped to read trace data"); return ERROR_TARGET_NOT_HALTED; } @@ -2628,7 +2671,7 @@ int xscale_read_trace(target_t *target) if (j == 256) { - DEBUG("no trace data collected"); + LOG_DEBUG("no trace data collected"); return ERROR_XSCALE_NO_TRACE_DATA; } @@ -2693,7 +2736,7 @@ int xscale_read_instruction(target_t *target, arm_instruction_t *instruction) xscale->trace.current_pc - xscale->trace.image->sections[section].base_address, 4, buf, &size_read)) != ERROR_OK) { - ERROR("error while reading instruction: %i", retval); + LOG_ERROR("error while reading instruction: %i", retval); return ERROR_TRACE_INSTRUCTION_UNAVAILABLE; } opcode = target_buffer_get_u32(target, buf); @@ -2706,7 +2749,7 @@ int xscale_read_instruction(target_t *target, arm_instruction_t *instruction) xscale->trace.current_pc - xscale->trace.image->sections[section].base_address, 2, buf, &size_read)) != ERROR_OK) { - ERROR("error while reading instruction: %i", retval); + LOG_ERROR("error while reading instruction: %i", retval); return ERROR_TRACE_INSTRUCTION_UNAVAILABLE; } opcode = target_buffer_get_u16(target, buf); @@ -2714,7 +2757,7 @@ int xscale_read_instruction(target_t *target, arm_instruction_t *instruction) } else { - ERROR("BUG: unknown core state encountered"); + LOG_ERROR("BUG: unknown core state encountered"); exit(-1); } @@ -2797,7 +2840,7 @@ int xscale_analyze_trace(target_t *target, command_context_t *cmd_ctx) next_pc_ok = 1; if (((chkpt == 0) && (next_pc != trace_data->chkpt0)) || ((chkpt == 1) && (next_pc != trace_data->chkpt1))) - WARNING("checkpointed indirect branch target address doesn't match checkpoint"); + LOG_WARNING("checkpointed indirect branch target address doesn't match checkpoint"); } /* explicit fall-through */ case 12: /* Checkpointed Direct Branch */ @@ -2816,7 +2859,7 @@ int xscale_analyze_trace(target_t *target, command_context_t *cmd_ctx) } else { - WARNING("more than two checkpointed branches encountered"); + LOG_WARNING("more than two checkpointed branches encountered"); } break; case 15: /* Roll-over */ @@ -2824,7 +2867,7 @@ int xscale_analyze_trace(target_t *target, command_context_t *cmd_ctx) continue; default: /* Reserved */ command_print(cmd_ctx, "--- reserved trace message ---"); - ERROR("BUG: trace message %i is reserved", (trace_data->entries[i].data & 0xf0) >> 4); + LOG_ERROR("BUG: trace message %i is reserved", (trace_data->entries[i].data & 0xf0) >> 4); return ERROR_OK; } @@ -2880,7 +2923,7 @@ int xscale_analyze_trace(target_t *target, command_context_t *cmd_ctx) (((instruction.type == ARM_B) || (instruction.type == ARM_BL) || (instruction.type == ARM_BLX)) && - (instruction.info.b_bl_bx_blx.target_address != -1))) + (instruction.info.b_bl_bx_blx.target_address != 0xffffffff))) { xscale->trace.current_pc = instruction.info.b_bl_bx_blx.target_address; } @@ -2972,28 +3015,15 @@ void xscale_build_reg_cache(target_t *target) int xscale_init_target(struct command_context_s *cmd_ctx, struct target_s *target) { - if (startup_mode != DAEMON_RESET) - { - ERROR("XScale target requires a reset"); - ERROR("Reset target to enable debug"); - } - - /* assert TRST once during startup */ - jtag_add_reset(1, 0); - jtag_add_sleep(5000); - jtag_add_reset(0, 0); - jtag_execute_queue(); - return ERROR_OK; } -int xscale_quit() +int xscale_quit(void) { - return ERROR_OK; } -int xscale_init_arch_info(target_t *target, xscale_common_t *xscale, int chain_pos, char *variant) +int xscale_init_arch_info(target_t *target, xscale_common_t *xscale, jtag_tap_t *tap, const char *variant) { armv4_5_common_t *armv4_5; u32 high_reset_branch, low_reset_branch; @@ -3009,8 +3039,7 @@ int xscale_init_arch_info(target_t *target, xscale_common_t *xscale, int chain_p xscale->variant = strdup(variant); /* prepare JTAG information for the new target */ - xscale->jtag_info.chain_pos = chain_pos; - jtag_register_event_callback(xscale_jtag_callback, target); + xscale->jtag_info.tap = tap; xscale->jtag_info.dbgrx = 0x02; xscale->jtag_info.dbgtx = 0x10; @@ -3063,8 +3092,6 @@ int xscale_init_arch_info(target_t *target, xscale_common_t *xscale, int chain_p xscale->hold_rst = 0; xscale->external_debug_break = 0; - xscale->force_hw_bkpts = 1; - xscale->ibcr_available = 2; xscale->ibcr0_used = 0; xscale->ibcr1_used = 0; @@ -3105,23 +3132,11 @@ int xscale_init_arch_info(target_t *target, xscale_common_t *xscale, int chain_p } /* target xscale */ -int xscale_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target) +int xscale_target_create(struct target_s *target, Jim_Interp *interp) { - int chain_pos; - char *variant = NULL; - xscale_common_t *xscale = malloc(sizeof(xscale_common_t)); - - if (argc < 5) - { - ERROR("'target xscale' requires four arguments: "); - exit(-1); - } - - chain_pos = strtoul(args[3], NULL, 0); + xscale_common_t *xscale = calloc(1,sizeof(xscale_common_t)); - variant = args[4]; - - xscale_init_arch_info(target, xscale, chain_pos, variant); + xscale_init_arch_info(target, xscale, target->tap, target->variant); xscale_build_reg_cache(target); return ERROR_OK; @@ -3137,20 +3152,19 @@ int xscale_handle_debug_handler_command(struct command_context_s *cmd_ctx, char if (argc < 2) { - ERROR("'xscale debug_handler
' command takes two required operands"); + LOG_ERROR("'xscale debug_handler
' command takes two required operands"); return ERROR_OK; } if ((target = get_target_by_num(strtoul(args[0], NULL, 0))) == NULL) { - ERROR("no target '%s' configured", args[0]); - return ERROR_OK; + LOG_ERROR("no target '%s' configured", args[0]); + return ERROR_FAIL; } if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) { - command_print(cmd_ctx, "target isn't an ARM920t target"); - return ERROR_OK; + return ERROR_FAIL; } handler_address = strtoul(args[1], NULL, 0); @@ -3162,7 +3176,8 @@ int xscale_handle_debug_handler_command(struct command_context_s *cmd_ctx, char } else { - ERROR("xscale debug_handler
must be between 0x800 and 0x1fef800 or between 0xfe000800 and 0xfffff800"); + LOG_ERROR("xscale debug_handler
must be between 0x800 and 0x1fef800 or between 0xfe000800 and 0xfffff800"); + return ERROR_FAIL; } return ERROR_OK; @@ -3178,27 +3193,25 @@ int xscale_handle_cache_clean_address_command(struct command_context_s *cmd_ctx, if (argc < 2) { - ERROR("'xscale cache_clean_address
' command takes two required operands"); - return ERROR_OK; + return ERROR_COMMAND_SYNTAX_ERROR; } if ((target = get_target_by_num(strtoul(args[0], NULL, 0))) == NULL) { - ERROR("no target '%s' configured", args[0]); - return ERROR_OK; + LOG_ERROR("no target '%s' configured", args[0]); + return ERROR_FAIL; } if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) { - command_print(cmd_ctx, "target isn't an XScale target"); - return ERROR_OK; + return ERROR_FAIL; } cache_clean_address = strtoul(args[1], NULL, 0); if (cache_clean_address & 0xffff) { - ERROR("xscale cache_clean_address
must be 64kb aligned"); + LOG_ERROR("xscale cache_clean_address
must be 64kb aligned"); } else { @@ -3216,32 +3229,47 @@ int xscale_handle_cache_info_command(struct command_context_s *cmd_ctx, char *cm if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) { - command_print(cmd_ctx, "target isn't an XScale target"); return ERROR_OK; } return armv4_5_handle_cache_info_command(cmd_ctx, &xscale->armv4_5_mmu.armv4_5_cache); } -int xscale_handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc) +static int xscale_virt2phys(struct target_s *target, u32 virtual, u32 *physical) { - target_t *target = get_current_target(cmd_ctx); armv4_5_common_t *armv4_5; xscale_common_t *xscale; + int retval; + int type; + u32 cb; + int domain; + u32 ap; - if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) + if ((retval = xscale_get_arch_pointers(target, &armv4_5, &xscale)) != ERROR_OK) { - command_print(cmd_ctx, "target isn't an XScale target"); - return ERROR_OK; + return retval; } + u32 ret = armv4_5_mmu_translate_va(target, &xscale->armv4_5_mmu, virtual, &type, &cb, &domain, &ap); + if (type == -1) + { + return ret; + } + *physical = ret; + return ERROR_OK; +} + +static int xscale_mmu(struct target_s *target, int *enabled) +{ + armv4_5_common_t *armv4_5 = target->arch_info; + xscale_common_t *xscale = armv4_5->arch_info; if (target->state != TARGET_HALTED) { - command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd); - return ERROR_OK; + LOG_ERROR("Target not halted"); + return ERROR_TARGET_INVALID; } - - return armv4_5_mmu_handle_virt2phys_command(cmd_ctx, cmd, args, argc, target, &xscale->armv4_5_mmu); + *enabled = xscale->armv4_5_mmu.mmu_enabled; + return ERROR_OK; } int xscale_handle_mmu_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc) @@ -3252,7 +3280,6 @@ int xscale_handle_mmu_command(command_context_t *cmd_ctx, char *cmd, char **args if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) { - command_print(cmd_ctx, "target isn't an XScale target"); return ERROR_OK; } @@ -3290,7 +3317,6 @@ int xscale_handle_idcache_command(command_context_t *cmd_ctx, char *cmd, char ** if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) { - command_print(cmd_ctx, "target isn't an XScale target"); return ERROR_OK; } @@ -3331,7 +3357,7 @@ int xscale_handle_idcache_command(command_context_t *cmd_ctx, char *cmd, char ** command_print(cmd_ctx, "icache %s", (xscale->armv4_5_mmu.armv4_5_cache.i_cache_enabled) ? "enabled" : "disabled"); if (dcache) - command_print(cmd_ctx, "dcache %s", (xscale->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled) ? "enabled" : "disabled"); + command_print(cmd_ctx, "dcache %s", (xscale->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled) ? "enabled" : "disabled"); return ERROR_OK; } @@ -3344,7 +3370,6 @@ int xscale_handle_vector_catch_command(command_context_t *cmd_ctx, char *cmd, ch if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) { - command_print(cmd_ctx, "target isn't an XScale target"); return ERROR_OK; } @@ -3364,35 +3389,6 @@ int xscale_handle_vector_catch_command(command_context_t *cmd_ctx, char *cmd, ch return ERROR_OK; } -int xscale_handle_force_hw_bkpts_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - target_t *target = get_current_target(cmd_ctx); - armv4_5_common_t *armv4_5; - xscale_common_t *xscale; - - if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) - { - command_print(cmd_ctx, "target isn't an XScale target"); - return ERROR_OK; - } - - if ((argc >= 1) && (strcmp("enable", args[0]) == 0)) - { - xscale->force_hw_bkpts = 1; - } - else if ((argc >= 1) && (strcmp("disable", args[0]) == 0)) - { - xscale->force_hw_bkpts = 0; - } - else - { - command_print(cmd_ctx, "usage: xscale force_hw_bkpts "); - } - - command_print(cmd_ctx, "force hardware breakpoints %s", (xscale->force_hw_bkpts) ? "enabled" : "disabled"); - - return ERROR_OK; -} int xscale_handle_trace_buffer_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { @@ -3403,7 +3399,6 @@ int xscale_handle_trace_buffer_command(struct command_context_s *cmd_ctx, char * if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) { - command_print(cmd_ctx, "target isn't an XScale target"); return ERROR_OK; } @@ -3490,7 +3485,6 @@ int xscale_handle_trace_image_command(struct command_context_s *cmd_ctx, char *c if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) { - command_print(cmd_ctx, "target isn't an XScale target"); return ERROR_OK; } @@ -3518,7 +3512,6 @@ int xscale_handle_trace_image_command(struct command_context_s *cmd_ctx, char *c if (image_open(xscale->trace.image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK) { - command_print(cmd_ctx, "image opening error: %s", xscale->trace.image->error_str); free(xscale->trace.image); xscale->trace.image = NULL; return ERROR_OK; @@ -3537,7 +3530,6 @@ int xscale_handle_dump_trace_command(struct command_context_s *cmd_ctx, char *cm if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) { - command_print(cmd_ctx, "target isn't an XScale target"); return ERROR_OK; } @@ -3563,7 +3555,6 @@ int xscale_handle_dump_trace_command(struct command_context_s *cmd_ctx, char *cm if (fileio_open(&file, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK) { - command_print(cmd_ctx, "file open error: %s", file.error_str); return ERROR_OK; } @@ -3595,7 +3586,6 @@ int xscale_handle_analyze_trace_buffer_command(struct command_context_s *cmd_ctx if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) { - command_print(cmd_ctx, "target isn't an XScale target"); return ERROR_OK; } @@ -3604,22 +3594,110 @@ int xscale_handle_analyze_trace_buffer_command(struct command_context_s *cmd_ctx return ERROR_OK; } +int xscale_handle_cp15(command_context_t *cmd_ctx, char *cmd, char **args, int argc) +{ + target_t *target = get_current_target(cmd_ctx); + armv4_5_common_t *armv4_5; + xscale_common_t *xscale; + + if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) + { + return ERROR_OK; + } + + if (target->state != TARGET_HALTED) + { + command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd); + return ERROR_OK; + } + u32 reg_no = 0; + reg_t *reg = NULL; + if(argc > 0) + { + reg_no = strtoul(args[0], NULL, 0); + /*translate from xscale cp15 register no to openocd register*/ + switch(reg_no) + { + case 0: + reg_no = XSCALE_MAINID; + break; + case 1: + reg_no = XSCALE_CTRL; + break; + case 2: + reg_no = XSCALE_TTB; + break; + case 3: + reg_no = XSCALE_DAC; + break; + case 5: + reg_no = XSCALE_FSR; + break; + case 6: + reg_no = XSCALE_FAR; + break; + case 13: + reg_no = XSCALE_PID; + break; + case 15: + reg_no = XSCALE_CPACCESS; + break; + default: + command_print(cmd_ctx, "invalid register number"); + return ERROR_INVALID_ARGUMENTS; + } + reg = &xscale->reg_cache->reg_list[reg_no]; + + } + if(argc == 1) + { + u32 value; + + /* read cp15 control register */ + xscale_get_reg(reg); + value = buf_get_u32(reg->value, 0, 32); + command_print(cmd_ctx, "%s (/%i): 0x%x", reg->name, reg->size, value); + } + else if(argc == 2) + { + + u32 value = strtoul(args[1], NULL, 0); + + /* send CP write request (command 0x41) */ + xscale_send_u32(target, 0x41); + + /* send CP register number */ + xscale_send_u32(target, reg_no); + + /* send CP register value */ + xscale_send_u32(target, value); + + /* execute cpwait to ensure outstanding operations complete */ + xscale_send_u32(target, 0x53); + } + else + { + command_print(cmd_ctx, "usage: cp15 [register]<, [value]>"); + } + + return ERROR_OK; +} + int xscale_register_commands(struct command_context_s *cmd_ctx) { command_t *xscale_cmd; xscale_cmd = register_command(cmd_ctx, NULL, "xscale", NULL, COMMAND_ANY, "xscale specific commands"); - register_command(cmd_ctx, xscale_cmd, "debug_handler", xscale_handle_debug_handler_command, COMMAND_CONFIG, NULL); + register_command(cmd_ctx, xscale_cmd, "debug_handler", xscale_handle_debug_handler_command, COMMAND_ANY, "'xscale debug_handler
' command takes two required operands"); register_command(cmd_ctx, xscale_cmd, "cache_clean_address", xscale_handle_cache_clean_address_command, COMMAND_ANY, NULL); register_command(cmd_ctx, xscale_cmd, "cache_info", xscale_handle_cache_info_command, COMMAND_EXEC, NULL); - register_command(cmd_ctx, xscale_cmd, "virt2phys", xscale_handle_virt2phys_command, COMMAND_EXEC, NULL); register_command(cmd_ctx, xscale_cmd, "mmu", xscale_handle_mmu_command, COMMAND_EXEC, "['enable'|'disable'] the MMU"); register_command(cmd_ctx, xscale_cmd, "icache", xscale_handle_idcache_command, COMMAND_EXEC, "['enable'|'disable'] the ICache"); register_command(cmd_ctx, xscale_cmd, "dcache", xscale_handle_idcache_command, COMMAND_EXEC, "['enable'|'disable'] the DCache"); - register_command(cmd_ctx, xscale_cmd, "vector_catch", xscale_handle_idcache_command, COMMAND_EXEC, " of vectors that should be catched"); + register_command(cmd_ctx, xscale_cmd, "vector_catch", xscale_handle_vector_catch_command, COMMAND_EXEC, " of vectors that should be catched"); register_command(cmd_ctx, xscale_cmd, "trace_buffer", xscale_handle_trace_buffer_command, COMMAND_EXEC, " ['fill' [n]|'wrap']"); @@ -3628,6 +3706,8 @@ int xscale_register_commands(struct command_context_s *cmd_ctx) register_command(cmd_ctx, xscale_cmd, "trace_image", xscale_handle_trace_image_command, COMMAND_EXEC, "load image from [base address]"); + register_command(cmd_ctx, xscale_cmd, "cp15", xscale_handle_cp15, COMMAND_EXEC, "access coproc 15 [value]"); + armv4_5_register_commands(cmd_ctx); return ERROR_OK;