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Move Cortex A8 debug access initialisation from omap3530.cfg to cortex_a8.c

git-svn-id: svn://svn.berlios.de/openocd/trunk@2728 b42882b7-edfa-0310-969c-e2dbd0fdcd60
tags/v0.3.0-rc0
mlu 13 years ago
parent
commit
7b3be0e21e
2 changed files with 42 additions and 46 deletions
  1. +39
    -28
      src/target/cortex_a8.c
  2. +3
    -18
      tcl/target/omap3530.cfg

+ 39
- 28
src/target/cortex_a8.c View File

@@ -120,34 +120,27 @@ target_type_t cortexa8_target =
*/
int cortex_a8_init_debug_access(target_t *target)
{
#if 0
# Unlocking the debug registers for modification
mww 0x54011FB0 0xC5ACCE55 4

# Clear Sticky Power Down status Bit to enable access to
# the registers in the Core Power Domain
mdw 0x54011314
# Check that it is cleared
mdw 0x54011314
# Now we can read Core Debug Registers at offset 0x080
mdw 0x54011080 4
# We can also read RAM.
mdw 0x80000000 32

mdw 0x5401d030
mdw 0x54011FB8

# Set DBGEN line for hardware debug (OMAP35xx)
mww 0x5401d030 0x00002000

#Check AUTHSTATUS
mdw 0x54011FB8

# Instr enable
mww 0x54011088 0x2000
mdw 0x54011080 4
#endif
return ERROR_OK;
/* get pointers to arch-specific information */
armv4_5_common_t *armv4_5 = target->arch_info;
armv7a_common_t *armv7a = armv4_5->arch_info;
swjdp_common_t *swjdp = &armv7a->swjdp_info;

int retval;
uint32_t dummy;

LOG_DEBUG(" ");

/* Unlocking the debug registers for modification */
/* The debugport might be uninitialised so try twice */
retval = mem_ap_write_atomic_u32(swjdp, armv7a->debug_base + CPUDBG_LOCKACCESS, 0xC5ACCE55);
if (retval != ERROR_OK)
mem_ap_write_atomic_u32(swjdp, armv7a->debug_base + CPUDBG_LOCKACCESS, 0xC5ACCE55);
/* 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 */
return retval;
}

int cortex_a8_exec_opcode(target_t *target, uint32_t opcode)
@@ -1441,6 +1434,9 @@ int cortex_a8_examine(struct target_s *target)
LOG_DEBUG("Configured %i hw breakpoint pairs and %i hw watchpoint pairs",
cortex_a8->brp_num , cortex_a8->wrp_num);

/* Configure core debug access */
cortex_a8_init_debug_access(target);
target->type->examined = 1;

return retval;
@@ -1559,6 +1555,17 @@ static int cortex_a8_handle_cache_info_command(struct command_context_s *cmd_ctx
}


static int cortex_a8_handle_dbginit_command(struct command_context_s *cmd_ctx,
char *cmd, char **args, int argc)
{
target_t *target = get_current_target(cmd_ctx);

cortex_a8_init_debug_access(target);

return ERROR_OK;
}


int cortex_a8_register_commands(struct command_context_s *cmd_ctx)
{
command_t *cortex_a8_cmd;
@@ -1575,5 +1582,9 @@ int cortex_a8_register_commands(struct command_context_s *cmd_ctx)
cortex_a8_handle_cache_info_command, COMMAND_EXEC,
"display information about target caches");

register_command(cmd_ctx, cortex_a8_cmd, "dbginit",
cortex_a8_handle_dbginit_command, COMMAND_EXEC,
"Initialize core debug");

return retval;
}

+ 3
- 18
tcl/target/omap3530.cfg View File

@@ -47,24 +47,9 @@ proc omap3_dbginit { } {

jtag tapenable omap3530.dap
targets
# sleep 1000
# dap apsel 1
# sleep 1000
# dap apsel 1
# dap info 1

# 0xd401.0000 - ETM
# 0xd401.1000 - Cortex-A8
# 0xd401.9000 - TPIU (traceport)
# 0xd401.b000 - ETB
# 0xd401.d000 - DAPCTL

omap3.cpu mww 0x54011FB0 0xC5ACCE55

omap3.cpu mdw 0x54011314
omap3.cpu mdw 0x54011314
# omap3.cpu mdw 0x54011080

# General Cortex A8 debug initialisation
cortex_a8 dbginit
# Enable DBGU singal for OMAP353x
omap3.cpu mww 0x5401d030 0x00002000
poll on
}

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