P2020 download uboot to nor ,erase failed,timeout

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P2020 download uboot to nor ,erase failed,timeout

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ybhao
Contributor I

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1. P2020 download uboot to nor flash ,erase failed,timeout。

thank you, 

2. burn address for uboot, is 0XFFF40000 OR 0xEFF40000 ?

#ifndef CONFIG_SYS_TEXT_BASE

//新版SDK 对应UBOOT的实际烧录地址 0xFFF40000 , 原因是 uboot变大到了 768K

#define CONFIG_SYS_TEXT_BASE           0xeff40000   

#endif

 

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ybhao
Contributor I

i want burn uboot to nor flash , which initial tcl file should i use?

does i used the wrong tcl file? what's the difference between P2020RDB-PC_init_core.tcl and P2020RDB-PC_init_sram.tcl,thank you

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yipingwang
NXP TechSupport
NXP TechSupport

For custom board bringing up, you could use CodeWarrior initialization file P2020RDB-PC_init_sram.tcl, which configures L2 Cache to SRAM to run flash programming algorithm in SRAM to avoid to use DDR memory.

According to MMU configuration section in P2020RDB-PC_init_sram.tcl, u-boot should be programmed at fff40000.

If you didn't use the same type flash as P2020RDB-PC on your custom board, you need to modify P2020RDB-PC_init_sram.tcl to make it suitable for you custom board.

You need to modify LAW configuration, ORx/BRx configuration in Local Bus memory controller and MMU initialization sections.

 

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