diff options
| -rw-r--r-- | src/target/cortex_a8.c | 78 |
1 files changed, 56 insertions, 22 deletions
diff --git a/src/target/cortex_a8.c b/src/target/cortex_a8.c index f6f13cfc..2486c94c 100644 --- a/src/target/cortex_a8.c +++ b/src/target/cortex_a8.c @@ -67,6 +67,8 @@ int cortex_a8_dap_read_coreregister_u32(target_t *target, uint32_t *value, int regnum); int cortex_a8_dap_write_coreregister_u32(target_t *target, uint32_t value, int regnum); +int cortex_a8_assert_reset(target_t *target); +int cortex_a8_deassert_reset(target_t *target); target_type_t cortexa8_target = { @@ -138,8 +140,13 @@ int cortex_a8_init_debug_access(target_t *target) /* Clear Sticky Power Down status Bit in PRSR to enable access to the registers in the Core Power Domain */ retval = mem_ap_read_atomic_u32(swjdp, armv7a->debug_base + CPUDBG_PRSR, &dummy); - /* Enabling of instruction execution in debug mode is done in debug_entry code */ - + /* Enabling of instruction execution in debug mode is done in debug_entry code */ + + /* Resync breakpoint registers */ + + /* Since this is likley called from init or reset, update targtet state information*/ + cortex_a8_poll(target); + return retval; } @@ -303,7 +310,7 @@ int cortex_a8_dap_write_coreregister_u32(target_t *target, uint32_t value, int r armv4_5_common_t *armv4_5 = target->arch_info; armv7a_common_t *armv7a = armv4_5->arch_info; swjdp_common_t *swjdp = &armv7a->swjdp_info; - + if (Rd > 16) return retval; @@ -1188,6 +1195,33 @@ int cortex_a8_remove_breakpoint(struct target_s *target, breakpoint_t *breakpoin * Cortex-A8 Reset fuctions */ +int cortex_a8_assert_reset(target_t *target) +{ + + LOG_DEBUG(" "); + + /* registers are now invalid */ + armv4_5_invalidate_core_regs(target); + + target->state = TARGET_RESET; + + return ERROR_OK; +} + +int cortex_a8_deassert_reset(target_t *target) +{ + + LOG_DEBUG(" "); + + if (target->reset_halt) + { + int retval; + if ((retval = target_halt(target)) != ERROR_OK) + return retval; + } + + return ERROR_OK; +} /* * Cortex-A8 Memory access @@ -1265,23 +1299,23 @@ int cortex_a8_write_memory(struct target_s *target, uint32_t address, exit(-1); } - /* The Cache handling will NOT work with MMU active, the wrong addresses will be invalidated */ - /* invalidate I-Cache */ - if (armv7a->armv4_5_mmu.armv4_5_cache.i_cache_enabled) - { - /* Invalidate ICache single entry with MVA, repeat this for all cache - lines in the address range, Cortex-A8 has fixed 64 byte line length */ - /* Invalidate Cache single entry with MVA to PoU */ - for (uint32_t cacheline=address; cacheline<address+size*count; cacheline+=64) - armv7a->write_cp15(target, 0, 1, 7, 5, cacheline); /* I-Cache to PoU */ - } - /* invalidate D-Cache */ - if (armv7a->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled) - { - /* Invalidate Cache single entry with MVA to PoC */ - for (uint32_t cacheline=address; cacheline<address+size*count; cacheline+=64) - armv7a->write_cp15(target, 0, 1, 7, 6, cacheline); /* U/D cache to PoC */ - } + /* The Cache handling will NOT work with MMU active, the wrong addresses will be invalidated */ + /* invalidate I-Cache */ + if (armv7a->armv4_5_mmu.armv4_5_cache.i_cache_enabled) + { + /* Invalidate ICache single entry with MVA, repeat this for all cache + lines in the address range, Cortex-A8 has fixed 64 byte line length */ + /* Invalidate Cache single entry with MVA to PoU */ + for (uint32_t cacheline=address; cacheline<address+size*count; cacheline+=64) + armv7a->write_cp15(target, 0, 1, 7, 5, cacheline); /* I-Cache to PoU */ + } + /* invalidate D-Cache */ + if (armv7a->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled) + { + /* Invalidate Cache single entry with MVA to PoC */ + for (uint32_t cacheline=address; cacheline<address+size*count; cacheline+=64) + armv7a->write_cp15(target, 0, 1, 7, 6, cacheline); /* U/D cache to PoC */ + } return retval; } @@ -1374,7 +1408,7 @@ int cortex_a8_examine(struct target_s *target) uint32_t didr, ctypr, ttypr, cpuid; LOG_DEBUG("TODO"); - + /* Here we shall insert a proper ROM Table scan */ armv7a->debug_base = OMAP3530_DEBUG_BASE; @@ -1451,7 +1485,7 @@ int cortex_a8_examine(struct target_s *target) /* Configure core debug access */ cortex_a8_init_debug_access(target); - + target->type->examined = 1; return retval; |