How To Migrate The DDR Configuration To Uboot 2009 on MX6 Android 4.2

[tony_l_cai]

Hi All,

Now our board's DDR size has changes from 1GB to 2GB, I have used the DDR stress tool to config the DDR params and pass. But maybe need some changes in uboot 2009 code. Because the MFG uboot load cannot boot and no log, so could you help me? Thank you~

[igorpadykov]

Hi Tony

for uboot 2009 changes for new ddr settings should be made in

dcd header file : uboot/board/feescale/mx6q_sabresd/flash_header.S

Best regards

igor

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[tony_l_cai]

Hi,

I have changed it, no others?

such as

/*-----------------------------------------------------------------------

* Physical Memory Map

*/

#define CONFIG_NR_DRAM_BANKS 1

#define PHYS_SDRAM_1 CSD0_DDR_BASE_ADDR

#define PHYS_SDRAM_1_SIZE (2u * 1024 * 1024 * 1024)

#define iomem_valid_addr(addr, size) \

  (addr >= PHYS_SDRAM_1 && addr <= (PHYS_SDRAM_1 + PHYS_SDRAM_1_SIZE))

Change for the above, still no log

Help me! Thank you~