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What I have to change in u-boot code if I want to change the more DDR size which is supported by DDR controller?

Question asked by Pratik Bhatt on Nov 16, 2015
Latest reply on Nov 20, 2015 by Pratik Bhatt



In QDS board each DDR size is 8GB and there are two DDR so total 16GB DDR is there. Now suppose i want to change that DDR size up to 256GB so each DDR controller can support 128GB for doing that what changed i have to make in u-boot code.


I go through the u-boot code dram_init part from common/board_f.c file but i didn't find any proper field which can describe the DDR size.


When we read the Chip select memory bound register CS0_BNDS  and CS1_BNDS it will shows its value 0x000003ff so what that means? and for change the size of supported DDR i have to changed value in this register?


waiting for your valuable reply.