PowerQUICC Processors中的主题 Re: nand flash boot for PPC

nand flash boot for PPC

geekdarcy — Wed, 21 Nov 2018 14:35:10 GMT

Hi everyone,

I'm developing a new board based on the MPC5125 MPU.

I'm trying to port the u-boot for MPC5125 MPU ?

I need  boot from Nand flash.

I found uboot2009.03 is not support nand flash boot.

Do you have same guide for me?

Thanks.

Re: nand flash boot for PPC

geekdarcy — Fri, 23 Nov 2018 08:13:36 GMT

Hi，all

Where can I download U-boot for TWR-MPC5125 ?

Re: nand flash boot for PPC

Pavel — Fri, 23 Nov 2018 11:20:03 GMT

See attachment. It is u-boot for TWR-MPC5125 board.

Program u-boot-spl:

=> tftp 0x4000000 u-boot-spl-2k.bin

=> nand_e 0x00 0x01

=> nand_loader 0x4000000 0x00 0x800

=> nand_r 0x2000000 0x00 0x800

=> md 0x2000000

2 Program u-boot:

=> tftp 0x4000000 u-boot-second-usb.bin

=> nand_e 0x100 0x1AD (since size of the u-boot-second-usb.bin file is 0x56260)

=> nand_w 0x4000000 0x100 0x56800

=> nand_r 0x2000000 0x100 0x800

=> md 0x2000000

Have a great day,
Pavel Chubakov

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Re: nand flash boot for PPC

geekdarcy — Fri, 23 Nov 2018 11:35:26 GMT

hello, Pavel

Thanks for reply.

My custom board can not boot from Nand flash.

I need burn U-BOOT.bin to nand flash by CodeWarrior TOOL.

Do you know how to debug? how to burn?

Please give me some reference!

I am looking forward for your reply.

Thank you very much!