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Diffstat (limited to 'src/target/arm_adi_v5.c')
-rw-r--r--src/target/arm_adi_v5.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/src/target/arm_adi_v5.c b/src/target/arm_adi_v5.c
index 53c0c4e1..3a81784e 100644
--- a/src/target/arm_adi_v5.c
+++ b/src/target/arm_adi_v5.c
@@ -825,9 +825,10 @@ int dap_find_ap(struct adiv5_dap *dap, enum ap_type type_to_find, uint8_t *ap_nu
* 31-28 : Revision
* 27-24 : JEDEC bank (0x4 for ARM)
* 23-17 : JEDEC code (0x3B for ARM)
- * 16 : Mem-AP
- * 15-8 : Reserved
- * 7-0 : AP Identity (1=AHB-AP 2=APB-AP 0x10=JTAG-AP)
+ * 16-13 : Class (0b1000=Mem-AP)
+ * 12-8 : Reserved
+ * 7-4 : AP Variant (non-zero for JTAG-AP)
+ * 3-0 : AP Type (0=JTAG-AP 1=AHB-AP 2=APB-AP 4=AXI-AP)
*/
/* Reading register for a non-existant AP should not cause an error,
@@ -835,11 +836,12 @@ int dap_find_ap(struct adiv5_dap *dap, enum ap_type type_to_find, uint8_t *ap_nu
*/
if ((retval == ERROR_OK) && /* Register read success */
((id_val & 0x0FFF0000) == 0x04770000) && /* Jedec codes match */
- ((id_val & 0xFF) == type_to_find)) { /* type matches*/
+ ((id_val & 0xF) == type_to_find)) { /* type matches*/
LOG_DEBUG("Found %s at AP index: %d (IDR=0x%08" PRIX32 ")",
(type_to_find == AP_TYPE_AHB_AP) ? "AHB-AP" :
(type_to_find == AP_TYPE_APB_AP) ? "APB-AP" :
+ (type_to_find == AP_TYPE_AXI_AP) ? "AXI-AP" :
(type_to_find == AP_TYPE_JTAG_AP) ? "JTAG-AP" : "Unknown",
ap, id_val);
@@ -851,6 +853,7 @@ int dap_find_ap(struct adiv5_dap *dap, enum ap_type type_to_find, uint8_t *ap_nu
LOG_DEBUG("No %s found",
(type_to_find == AP_TYPE_AHB_AP) ? "AHB-AP" :
(type_to_find == AP_TYPE_APB_AP) ? "APB-AP" :
+ (type_to_find == AP_TYPE_AXI_AP) ? "AXI-AP" :
(type_to_find == AP_TYPE_JTAG_AP) ? "JTAG-AP" : "Unknown");
return ERROR_FAIL;
}