Hi Steven,
On Monday 03 November 2008, 조기성 wrote:
I Made my board config header, and using yosemite's init.S & u-boot.lds, mft.c(Yosemite.c) Only change config header , but it's not working .
You should create your own board port for this custom 440EP board.
- First The difference of my SDRAM configuration is
*** (PPC440EP supported four external DDR_SDRAM Banks.) *** But Our used only external DDR_SDRAM Bank_0(BANKSEL_0) on the New design Board.
Yes. I already described how you should handle this DDR initialization in my last mail. Use the common code (cpu/ppc4xx/sdram.c). You probably need to change the CONFIG_SYS_SDRAM_TABLE for your board. Take a look at the p3p440.h header as an example.
BTW: SDRAM configuration is a complex matter. You definitely need to take a look at the PPC users manual and the SDRAM datasheet for this.
Best regards, Stefan
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