On Mon, Nov 11, 2013 at 10:45:30AM +0000, Chris Ruehl wrote:
> Hi,
Hi,
While this does involve device tree, it's not strictly a device tree
problem, and the people best placed to answer your question don't seem
to be on Cc. You'd get better responses if you used get_maintainer.pl,
or looked at the commit history of the driver or binding to find people
likely to be able to help.
I've added Dong Aisheng, Shawn Guo, and Linus Walleij to Cc, as they had
signed-off-bys on the binding document.
Mark.
>
> while I port the static code to the DT I step into the problem to
> set the PSCR for the sdhc2 ports to 22k pull-up
> I look for something like described in
> pinctrl/fsl,imx-pinctrl.txt
>
> the fsl,imx27-pinctrl only say 0/1 dis/enable pull up but not the strength.
>
>
> pinctrl_sdhc2_1: sdhc2-1 {
> fsl,pins = <
> MX27_PAD_SD2_D0__SD2_D0 0x1
> MX27_PAD_SD2_D1__SD2_D1 0x1
> MX27_PAD_SD2_D2__SD2_D2 0x1
> MX27_PAD_SD2_D3__SD2_D3 0x1
> MX27_PAD_SD2_CLK__SD2_CLK 0x1
> MX27_PAD_SD2_CMD__SD2_CMD 0x1
> >;
> };
>
> its setup in board specific c-file
>
> /* 22k pull-up for sd2 pins */
> reg = __raw_readw(MX27_IO_ADDRESS(MX27_SYSCTRL_BASE_ADDR + MX27_SYS_PSCR));
> reg &= ~0xfff0;
> reg |= 0xfff0;
> __raw_writew(reg, MX27_IO_ADDRESS(MX27_SYSCTRL_BASE_ADDR + MX27_SYS_PSCR));
>
>
> Any successions?
>
> Regards
> Chris
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