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target/mem_ap: generic mem-ap target

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This pseudo target allows attaching to any access point on the DAP at the
MEM-AP level and read and write addresses on the connected bus. For
example, one can create a mem_ap target on the APB-AP and read and write
registers of debug components directly. This allows many diagnostic
and other features be programmed entirely using TCL, without necessity
of adding drivers to OpenOCD.

Change-Id: I53229ffd68fb0f96fb68be15b0f3a76cc8843c8e
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/4002
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Leonard Crestez <cdleonard@gmail.com>
This commit is contained in:
Matthias Welwarsky
2017-02-20 14:29:01 +01:00
committed by Matthias Welwarsky
parent 23cd59cdf2
commit 5d458cf727
3 changed files with 185 additions and 1 deletions
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2
src/target/target.c
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@@ -108,6 +108,7 @@ extern struct target_type quark_x10xx_target;
extern struct target_type quark_d20xx_target;
extern struct target_type stm8_target;
extern struct target_type riscv_target;
extern struct target_type mem_ap_target;
static struct target_type *target_types[] = {
&arm7tdmi_target,
@@ -144,6 +145,7 @@ static struct target_type *target_types[] = {
#if BUILD_TARGET64
&aarch64_target,
#endif
&mem_ap_target,
NULL,
};