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jtag: rework detectChain: try unmasked idcode first

This commit is contained in:
Gwenhael Goavec-Merou 2023-09-14 21:53:27 +02:00
parent 57fc9bcb6f
commit 9810735e32
1 changed files with 5 additions and 3 deletions
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8
src/jtag.cpp
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@ -198,10 +198,12 @@ int Jtag::detectChain(int max_dev)
/* ckeck highest nibble to prevent confusion between Cologne Chip
* GateMate and Efinix Trion T4/T8 devices
*/
if (tmp != 0x20000001)
found = search_and_insert_device_with_idcode(tmp & 0x0fffffff);
if (!found) /* if masked not found -> search for full */
if (tmp == 0x20000001)
found = search_and_insert_device_with_idcode(tmp);
if (!found) /* not specific case -> search for full */
found = search_and_insert_device_with_idcode(tmp);
if (!found) /* if full idcode not found -> search for masked */
found = search_and_insert_device_with_idcode(tmp & 0x0fffffff);
if (!found) {
uint16_t mfg = IDCODE2MANUFACTURERID(tmp);