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target/aarch64: Use apnum setting 

Change aarch64 to use ap-num setting if provided. Fall back to original
behavior of using first AP when ap-num is invalid.

Change-Id: I0d3624f75c86ba5fd5a322ac60856dbbb6e71eaf
Signed-off-by: Kevin Yang <kangyang@google.com>
Reviewed-on: http://openocd.zylin.com/5831
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Kevin Yang 2020-09-02 20:15:31 -07:00 committed by Antonio Borneo
parent 9a877a83a1
commit 63d3640add
1 changed files with 14 additions and 10 deletions
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24
src/target/aarch64.c
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@ -2248,7 +2248,7 @@ static int aarch64_examine_first(struct target *target)
struct aarch64_common *aarch64 = target_to_aarch64(target);
struct armv8_common *armv8 = &aarch64->armv8_common;
struct adiv5_dap *swjdp = armv8->arm.dap;
struct aarch64_private_config *pc;
struct aarch64_private_config *pc = target->private_config;
int i;
int retval = ERROR_OK;
uint64_t debug, ttypr;
@ -2256,11 +2256,18 @@ static int aarch64_examine_first(struct target *target)
uint32_t tmp0, tmp1, tmp2, tmp3;
debug = ttypr = cpuid = 0;
/* Search for the APB-AB - it is needed for access to debug registers */
retval = dap_find_ap(swjdp, AP_TYPE_APB_AP, &armv8->debug_ap);
if (retval != ERROR_OK) {
LOG_ERROR("Could not find APB-AP for debug access");
return retval;
if (pc == NULL)
return ERROR_FAIL;
if (pc->adiv5_config.ap_num == DP_APSEL_INVALID) {
/* Search for the APB-AB */
retval = dap_find_ap(swjdp, AP_TYPE_APB_AP, &armv8->debug_ap);
if (retval != ERROR_OK) {
LOG_ERROR("Could not find APB-AP for debug access");
return retval;
}
} else {
armv8->debug_ap = dap_ap(swjdp, pc->adiv5_config.ap_num);
}
retval = mem_ap_init(armv8->debug_ap);
@ -2335,10 +2342,6 @@ static int aarch64_examine_first(struct target *target)
LOG_DEBUG("ttypr = 0x%08" PRIx64, ttypr);
LOG_DEBUG("debug = 0x%08" PRIx64, debug);
if (target->private_config == NULL)
return ERROR_FAIL;
pc = (struct aarch64_private_config *)target->private_config;
if (pc->cti == NULL)
return ERROR_FAIL;
@ -2491,6 +2494,7 @@ static int aarch64_jim_configure(struct target *target, Jim_GetOptInfo *goi)
pc = (struct aarch64_private_config *)target->private_config;
if (pc == NULL) {
pc = calloc(1, sizeof(struct aarch64_private_config));
pc->adiv5_config.ap_num = DP_APSEL_INVALID;
target->private_config = pc;
}