Please check the discussion on https://review.openocd.org/c/openocd/+/8891,
The overlap is there and due to limited space allocated for JEP106 banks (4
bits) we cannot discriminate between "AMD" and "Shenzhen JIEQING Technology Co
Ltd".
Same issue with all the IDCODE in banks 0 and 16
---
**[tickets:#463] Clarification on the use of the IDCODE**
**Status:** new
**Milestone:** 0.12.0
**Created:** Tue Dec 23, 2025 02:06 PM UTC by Guanghui Cheng
**Last Updated:** Tue Dec 23, 2025 02:06 PM UTC
**Owner:** Andreas Fritiofson
The `jep106_table_manufacturer` function identifies manufacturer information
based on the `manufid` in the` idcode`. However, when the bank number is
greater than or equal to 17, it conflicts with earlier banks. For example,
`[0][0x01 - 1] = "AMD"` conflicts with
`[16][0x01 - 1] = "Shenzhen JIEQING Technology Co Ltd"`.
```
const char *jep106_table_manufacturer(unsigned int bank, unsigned int id)
{
if (id < 1 || id > 126) {
LOG_DEBUG("BUG: Caller passed out-of-range JEP106 ID!");
return "<invalid>";
}
/* index is zero based */
id--;
if (bank >= ARRAY_SIZE(jep106) || !jep106[bank][id])
return "<unknown>";
return jep106[bank][id];
}
```
---
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