Part Number: DP83869HM
Should setting the phy to "digital loopback" in RGMII to 1000-BaseX mode succeed at autonegotiation and achieve a link? We can't seem to get it to work:
These are the register settings we're doing (from u-boot)
write 0xE720 into 0xFE
0x04 -> 0x16
0x41 -> 0x1DF
0x1140 -> 0xC00
0x4000 -> 0x1F
The results of registers (c)01 to (c)05 are:
1 - 0x6149
2 - 0x2000
3 - 0xa0f3
4 - 0x20
5 - 0x0
I would expect (c)01 to be 0x6169, showing auto negotiation complete, and that (c)05 would show the same capabilities as in (c)04.
