P3041 - Doubts about RCW Hard-coded (custom board)

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P3041 - Doubts about RCW Hard-coded (custom board)

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rafaelcoelho
Contributor I

How to get feedback about processor configuration via RCW Hard-Coded for P3041? I need test PCIe interface, so I'm use RCW Hard-Coded on the following way:

cfg_rcw_src[0:4] EncodingRCW Hard-Coded Configuration Options
1_0100

Three (x2, x2, x4 PCI) Express at 2.5 GHz , 100-MHz ref clk, all agent mode; all cores in boot hold-off;

dual 4-pin UARTs enabled; platform ratio of 8:1; core PLL ratio of 14:1

I've got the following questions:

1 - How do I test of PCIe interface?

2 - How do release cores?

3 - RCW Hard-Coded provide interface for get feedback about configuration?

Can anyone help me with suggestions of ways to PCIe self-test?

Thanks.

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lunminliang
NXP Employee
NXP Employee

Hi,

To answer your third question:

Please use reset status register to get feedvack about the configuration, when Hard-Coded, it could also read back from the status registers.

For your second one:

Use Boot release register (DCFG_BRR) to release your cores from holdoff

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Wlodek_D_
Senior Contributor II

Hello,

Thank you for your post, however please consider moving it to the right community place (e.g. PowerQUICC Processors ) to get it visible for active members.

For details please see general advice Where to post a Discussion?

Thank you for using Freescale Community. 

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