This is an automated email from Gerrit.
Paul Fertser (fercer...@gmail.com) just uploaded a new patch set to Gerrit,
which you can find at http://openocd.zylin.com/2534
-- gerrit
commit 8b425daee7f219a4f7584c4ff8f62544b9c38ac4
Author: Paul Fertser <fercer...@gmail.com>
Date: Fri Feb 6 22:19:41 2015 +0300
target/cortex_a: add command to optionally force APB-AP access
Change-Id: If41bae0859e9b55c035b6ae6b30a30bf8817297e
Signed-off-by: Paul Fertser <fercer...@gmail.com>
diff --git a/doc/openocd.texi b/doc/openocd.texi
index 18e18b9..ec0dc34 100644
--- a/doc/openocd.texi
+++ b/doc/openocd.texi
@@ -7640,6 +7640,18 @@ the peripherals.
@xref{targetevents,,Target Events}.
@end deffn
+@subsection Cortex-A specific commands
+@cindex Cortex-A
+
+@deffn Command {cortex_a mem_ap_enable} (@option{0}|@option{1})
+This command can be used to override the memory access type.
+
+If the target has AHB-AP (aka MEM-AP) then OpenOCD will use it by
+default for all memory accesses. This option enables forcing APB-AP
+access instead and can be used as a workaround for bugs in AHB-AP code
+or for testing purposes.
+@end deffn
+
@section Intel Architecture
Intel Quark X10xx is the first product in the Quark family of SoCs. It is an
IA-32
diff --git a/src/target/cortex_a.c b/src/target/cortex_a.c
index 6e0e52c..da9e08f 100644
--- a/src/target/cortex_a.c
+++ b/src/target/cortex_a.c
@@ -2770,6 +2770,30 @@ COMMAND_HANDLER(cortex_a_handle_smp_gdb_command)
return ERROR_OK;
}
+COMMAND_HANDLER(cortex_a_handle_mem_ap_enable_command)
+{
+ struct target *target = get_current_target(CMD_CTX);
+ struct armv7a_common *armv7a = target_to_armv7a(target);
+
+ if (CMD_ARGC == 1) {
+ int enable;
+ COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], enable);
+
+ if (enable) {
+ int retval = dap_find_ap(armv7a->arm.dap,
AP_TYPE_AHB_AP, &armv7a->memory_ap);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("AHB-AP not found, can't enable");
+ return ERROR_FAIL;
+ }
+ }
+
+ armv7a->memory_ap_available = !!enable;
+
+ return ERROR_OK;
+ }
+ return ERROR_COMMAND_SYNTAX_ERROR;
+}
+
static const struct command_registration cortex_a_exec_command_handlers[] = {
{
.name = "cache_info",
@@ -2804,6 +2828,13 @@ static const struct command_registration
cortex_a_exec_command_handlers[] = {
.help = "display/fix current core played to gdb",
.usage = "",
},
+ {
+ .name = "mem_ap_enable",
+ .handler = cortex_a_handle_mem_ap_enable_command,
+ .mode = COMMAND_EXEC,
+ .help = "force enable or disable memory access via AHB",
+ .usage = "mem_ap_enable (1|0)",
+ },
COMMAND_REGISTRATION_DONE
--
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