- added patch to solve problem with AT91SAM9260 (dirty register)

[openocd.git] / src / target / cortex_m3.c

diff --git a/src/target/cortex_m3.c b/src/target/cortex_m3.c
index 279d986a6b9b049df9b4f584b5240be6671d059a..db9dd0547fa7e24214cc1b02cb006f62803a5edc 100644 (file)
--- a/src/target/cortex_m3.c
+++ b/src/target/cortex_m3.c
@@ -137,7 +137,7 @@ int cortex_m3_exec_opcode(target_t *target,u32 opcode, int len /* MODE, r0_inval
        ahbap_write_system_u32(swjdp, 0x20000000, opcode);
        ahbap_write_coreregister_u32(swjdp, 0x20000000, 15);
        cortex_m3_single_step_core(target);
-       armv7m->core_cache->reg_list[15].dirty = 1;
+       armv7m->core_cache->reg_list[15].dirty = armv7m->core_cache->reg_list[15].valid;
        retvalue = ahbap_write_system_atomic_u32(swjdp, 0x20000000, savedram);          
        
        return retvalue;
@@ -320,7 +320,7 @@ int cortex_m3_debug_entry(target_t *target)
        /* For IT instructions xPSR must be reloaded on resume and clear on debug exec*/
        if (xPSR & 0xf00)
        {
-               armv7m->core_cache->reg_list[ARMV7M_xPSR].dirty = 1;
+               armv7m->core_cache->reg_list[ARMV7M_xPSR].dirty = armv7m->core_cache->reg_list[ARMV7M_xPSR].valid;
                cortex_m3_store_core_reg_u32(target, ARMV7M_REGISTER_CORE_GP, 16, xPSR &~ 0xff);
        }
 
@@ -1149,8 +1149,8 @@ int cortex_m3_load_core_reg_u32(struct target_s *target, enum armv7m_regtype typ
                ahbap_write_coreregister_u32(swjdp, 0x20000000, 15);
                cortex_m3_single_step_core(target);
                ahbap_read_coreregister_u32(swjdp, value, 0);
-               armv7m->core_cache->reg_list[0].dirty = 1;
-               armv7m->core_cache->reg_list[15].dirty = 1;
+               armv7m->core_cache->reg_list[0].dirty = armv7m->core_cache->reg_list[0].valid;
+               armv7m->core_cache->reg_list[15].dirty = armv7m->core_cache->reg_list[15].valid;
                ahbap_write_system_u32(swjdp, 0x20000000, savedram);
                swjdp_transaction_endcheck(swjdp);
                DEBUG("load from special reg %i value 0x%x", SYSm, *value);
@@ -1175,7 +1175,7 @@ int cortex_m3_store_core_reg_u32(struct target_s *target, enum armv7m_regtype ty
                if (retval != ERROR_OK)
                {
                        ERROR("JTAG failure %i", retval);
-                       armv7m->core_cache->reg_list[num].dirty = 1;
+                       armv7m->core_cache->reg_list[num].dirty = armv7m->core_cache->reg_list[num].valid;
                        return ERROR_JTAG_DEVICE_ERROR;
                }
                DEBUG("write core reg %i value 0x%x", num, value);
@@ -1195,7 +1195,7 @@ int cortex_m3_store_core_reg_u32(struct target_s *target, enum armv7m_regtype ty
                ahbap_write_coreregister_u32(swjdp, 0x20000000, 15);
                cortex_m3_single_step_core(target);
                ahbap_write_coreregister_u32(swjdp, tempr0, 0);
-               armv7m->core_cache->reg_list[15].dirty = 1;
+               armv7m->core_cache->reg_list[15].dirty = armv7m->core_cache->reg_list[15].valid;
                ahbap_write_system_u32(swjdp, 0x20000000, savedram);
                swjdp_transaction_endcheck(swjdp);
                DEBUG("write special reg %i value 0x%x ", SYSm, value);