diff options
| -rw-r--r-- | src/target/cortex_a8.c | 47 |
1 files changed, 16 insertions, 31 deletions
diff --git a/src/target/cortex_a8.c b/src/target/cortex_a8.c index f099be94..f4b5550f 100644 --- a/src/target/cortex_a8.c +++ b/src/target/cortex_a8.c @@ -984,7 +984,7 @@ static int cortex_a8_set_breakpoint(struct target *target, if (brp_i >= cortex_a8->brp_num) { LOG_ERROR("ERROR Can not find free Breakpoint Register Pair"); - exit(-1); + return ERROR_FAIL; } breakpoint->set = brp_i + 1; if (breakpoint->length == 2) @@ -1180,19 +1180,14 @@ static int cortex_a8_read_memory(struct target *target, uint32_t address, { struct armv7a_common *armv7a = target_to_armv7a(target); struct swjdp_common *swjdp = &armv7a->swjdp_info; - - int retval = ERROR_OK; - - /* sanitize arguments */ - if (((size != 4) && (size != 2) && (size != 1)) || (count == 0) || !(buffer)) - return ERROR_INVALID_ARGUMENTS; + int retval = ERROR_INVALID_ARGUMENTS; /* cortex_a8 handles unaligned memory access */ // ??? dap_ap_select(swjdp, swjdp_memoryap); - switch (size) - { + if (count && buffer) { + switch (size) { case 4: retval = mem_ap_read_buf_u32(swjdp, buffer, 4 * count, address); break; @@ -1202,9 +1197,7 @@ static int cortex_a8_read_memory(struct target *target, uint32_t address, case 1: retval = mem_ap_read_buf_u8(swjdp, buffer, count, address); break; - default: - LOG_ERROR("BUG: we shouldn't get here"); - exit(-1); + } } return retval; @@ -1215,17 +1208,12 @@ int cortex_a8_write_memory(struct target *target, uint32_t address, { struct armv7a_common *armv7a = target_to_armv7a(target); struct swjdp_common *swjdp = &armv7a->swjdp_info; - - int retval; - - /* sanitize arguments */ - if (((size != 4) && (size != 2) && (size != 1)) || (count == 0) || !(buffer)) - return ERROR_INVALID_ARGUMENTS; + int retval = ERROR_INVALID_ARGUMENTS; // ??? dap_ap_select(swjdp, swjdp_memoryap); - switch (size) - { + if (count && buffer) { + switch (size) { case 4: retval = mem_ap_write_buf_u32(swjdp, buffer, 4 * count, address); break; @@ -1235,12 +1223,10 @@ int cortex_a8_write_memory(struct target *target, uint32_t address, case 1: retval = mem_ap_write_buf_u8(swjdp, buffer, count, address); break; - default: - LOG_ERROR("BUG: we shouldn't get here"); - exit(-1); + } } - if (target->state == TARGET_HALTED) + if (retval == ERROR_OK && target->state == TARGET_HALTED) { /* The Cache handling will NOT work with MMU active, the wrong addresses will be invalidated */ /* invalidate I-Cache */ @@ -1453,19 +1439,18 @@ static int cortex_a8_init_target(struct command_context *cmd_ctx, int cortex_a8_init_arch_info(struct target *target, struct cortex_a8_common *cortex_a8, struct jtag_tap *tap) { - struct arm *armv4_5; - struct armv7a_common *armv7a; - - armv7a = &cortex_a8->armv7a_common; - armv4_5 = &armv7a->armv4_5_common; + struct armv7a_common *armv7a = &cortex_a8->armv7a_common; + struct arm *armv4_5 = &armv7a->armv4_5_common; struct swjdp_common *swjdp = &armv7a->swjdp_info; + /* REVISIT v7a setup should be in a v7a-specific routine */ + armv4_5_init_arch_info(target, armv4_5); + armv7a->common_magic = ARMV7_COMMON_MAGIC; + /* Setup struct cortex_a8_common */ cortex_a8->common_magic = CORTEX_A8_COMMON_MAGIC; armv4_5->arch_info = armv7a; - armv4_5_init_arch_info(target, armv4_5); - /* prepare JTAG information for the new target */ cortex_a8->jtag_info.tap = tap; cortex_a8->jtag_info.scann_size = 4; |