Re: [PATCH 2/2] ARM: dts: imx6q: add support for the Utilite Pro

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On Wed, May 25, 2016 at 11:05 AM, Christopher Spinrath
<christopher.spinrath@xxxxxxxxxxxxxx> wrote:

> OK, done. Can I always use the default value in this case? If yes, can
> you point me to a proper documentation of these?

You can look at
"36.4.316 Pad Control Register
(IOMUXC_SW_PAD_CTL_PAD_ENET_TX_DATA1)" in the mx6quad reference manual.

For GPIO functionality the default power-on-reset value should work fine.

You can confirm this by reading address 0x20E0500 in the bootloader:
mw.l 0x20E0500 1

and then use this value on the dts. This way the kernel will always
have a sane value instead of relying in the value passed from the
bootloader.
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux