i.MX Processorsのトピックmx6ul u-boot ddr3 initialization

mx6ul u-boot ddr3 initialization

sarievruslan — Wed, 24 Aug 2016 16:55:39 GMT

Hi,

in u-boot 2015.4 which of file (Plugin.s) or imximage.cfg init DDR3 memory? I want to change chip to 2Gb (in evk 4 Gb). Which of file i must to correct?

Thanks

Re: mx6ul u-boot ddr3 initialization

igorpadykov — Thu, 25 Aug 2016 00:31:31 GMT

Hi Sariev

imximage.cfg inits DDR3 memory

uboot-imx.git - Freescale i.MX u-boot Tree

Best regards
igor
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Re: mx6ul u-boot ddr3 initialization

sarievruslan — Thu, 25 Aug 2016 07:31:31 GMT

Thank you, Igor. What is the purpose file Plugin.s ?

Re: mx6ul u-boot ddr3 initialization

igorpadykov — Thu, 25 Aug 2016 11:21:42 GMT

please check sect.8.7 Plugin Image i.MX6DQ Reference Manual

http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6DQRM.pdf

Re: mx6ul u-boot ddr3 initialization

sarievruslan — Thu, 25 Aug 2016 12:30:29 GMT

Ok, thank you. And the last question:

Im use a 2 Gbit DDR3 with MX6UL. In u-boot need change only PHYS_SDRAM_SIZE (config) and setting in imximage.cfg file? Or need to make any more changes?

Thank you, Ruslan.

Re: mx6ul u-boot ddr3 initialization

igorpadykov — Fri, 26 Aug 2016 05:45:51 GMT

only PHYS_SDRAM_SIZE (config) and setting in imximage.cfg file are needed.

~igor