P1022 System Version Register shows wrong value

[weiqing]

Hi all,

We are using P1022 on our board, the model I find from the surface of the processor is:

P1022NXN2LFB

1066/667 MHZ

QQUU1529

MALAYSIA

1M79W    CXFCQAQ

However, U-Boot recognize only one core instead of two. And the System Version Register indicates that it is a P1013 processor, instead of P1022.

     U-boot=> md 0xff7e00a0 2

     ff7e00a0: 80211151 80e70011                      .!.Q....

From the P1022RM chapter 26.4.21, it says:

System version numbers for the chip system logic
0x80EE_0011 P1022 with security, dual core
0x80E6_0011 P1022 without security, dual core
0x80EF_0011 P1013 with security, single core
0x80E7_0011 P1013 without security, single core

Can someone explain me what may happens here? The value of SVR is read-only and is hard coded by Freescale, right?

Thanks for any advise,

weiqing

[r8070z · Accepted solution]

Have a great day,

Check TEST_SEL pin.  This pin must be pulled up. I may suppose it is pulled down on your board.

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[linzhou]

Hi,

this pin is pulled up, do you have any other suggestion?