[U-Boot] Exynos DMC register details

Andy Joe jyizheng at gmail.com
Fri May 30 16:16:01 CEST 2014


Hi,

I am using Samsung device (Exynos board) to do some project on memory
management. But I find there are not many publicly available documents that
specify how to program the LPDDR3 memory controller. I did some extensive
search online and found the u-boot code that initializes Exynos device.
Below are the links of the code:

https://chromium.googlesource.com/chromiumos/third_party/u-boot/+/factory-4290.B/arch/arm/cpu/armv7/exynos
<https://mail.cs.stonybrook.edu/owa/redir.aspx?C=Lfrf7oGLbUewXApxQhoXcgnjrCJBT9EIFl1iBi-9UH1M__j2IQpsxUmT1nG19pbXT7pkfVGx_Mk.&URL=https%3a%2f%2fchromium.googlesource.com%2fchromiumos%2fthird_party%2fu-boot%2f%2b%2ffactory-4290.B%2farch%2farm%2fcpu%2farmv7%2fexynos>

and

https://chromium.googlesource.com/chromiumos/third_party/u-boot/+log/factory-4290.B/arch/arm/include/asm/arch-exynos/dmc.h


In dmc.h, exynos5_dmc and exynos5_phy_control are defined. Could anyone
please provide with me more detailed information of the fields in these two
data structure or send me a datasheet which explains the details?

We really appreciate your time to read this email and any help from you.

Best,

Yizheng


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