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authormlu <mlu@b42882b7-edfa-0310-969c-e2dbd0fdcd60>2009-10-02 16:36:03 +0000
committermlu <mlu@b42882b7-edfa-0310-969c-e2dbd0fdcd60>2009-10-02 16:36:03 +0000
commitc74ede4248f6cd29e66787ee688a4ecb150c1662 (patch)
treeb7681a77528d14028bdf4b0fba73a89834d2df0d /src/target
parent1033633321056d3e20c125e21d48723fc6f8705f (diff)
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Added asser_reset and deassert_reset for cortex_a8
git-svn-id: svn://svn.berlios.de/openocd/trunk@2791 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Diffstat (limited to 'src/target')
-rw-r--r--src/target/cortex_a8.c78
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;