V833 DDR3 RAM ASSIGN PIN IN KERNEL.

Dhiman Airao · 2022-04-28 17:32:26

We designed a board based on V833 processor. According to Schematic provided by Allwinner the Address and Data pins are swapped in DDR3 RAM. But we didn't swapped the pins in our board. Now We are trying to build the Linux image for board but as the pins of DDR3 ram is not swapped the processor didn't boot. So how to define the pins for DDR ram in kernel. Any help will be appreciated.

mysteryli · 2022-04-28 22:02:47

DDR引脚顺序不重要吧，数据怎么去的就怎么回来啊，你看看是不是其他原因，现在问题现象是什么？

Dhiman Airao · 2022-04-29 12:19:49

As you can see in the image when I try to flash the image to my board Dram init is failing. I am thinking this is because we didn't swapped the dram pin in board but Allwinner reference schematics did it so we have to modify than in kernel driver/dts file to assign pin number of DDR3L ram accordingly. Any help will be beneficial.

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楼主 # 2022-04-28 17:32:26 分享评论

V833 DDR3 RAM ASSIGN PIN IN KERNEL.

#1 2022-04-28 22:02:47 分享评论

Re: V833 DDR3 RAM ASSIGN PIN IN KERNEL.

楼主 #2 2022-04-29 12:19:49 分享评论

Re: V833 DDR3 RAM ASSIGN PIN IN KERNEL.

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