How to change the default PAD control values from U-boot?

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How to change the default PAD control values from U-boot?

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hrushinale
Contributor III

Hello Community,

I am working on iMX6 solo based custom board.I am setting some PAD control values in my U-boot code but that values are not reflecting after U-boot boots up. So, I want to change the PAD control values after U-boot boot up , say suppose I want to set 0x1b0b0 to UART control PADS. How can I do that using u-boot coomand?

I know I have to use the mw command , but when I tried mw 20e0330 1b0b0 and then I tried reading at that address using md 20e0330 it didn't change the values to 1b0b0.

Kindly help me to solve this issue.

Best Regards,

Hrushi

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igorpadykov
NXP Employee
NXP Employee

Hi Hrushi

could you try with mw.l and use nxp uboot 2016.03 :
http://git.freescale.com/git/cgit.cgi/imx/uboot-imx.git/tree/?h=imx_v2016.03_4.1.15_2.0.0_ga

Also as IOMUX Control (IOMUXC) registers are valid DCD address, one can set its value

in dcd header.

Best regards
igor
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