Hi Adam, On 20/02/19 7:01 PM, Adam Ford wrote: > I am trying to remove the manual pinmuxing code from the board file. > In an effort to accomplish this, I am trying to get SPL_OF_CONTROL and > SPL_PINCTRL to let me use the device tree(s) to initialize pin muxing. > > I have the following defined: > > CONFIG_SPL_PINCTRL=y > CONFIG_SPL_PINCTRL_FULL=y > CONFIG_SPL_PINCTRL_GENERIC=y > CONFIG_SPL_PINMUX=y > > along with > CONFIG_PINCTRL_IMX=y > CONFIG_PINCTRL_IMX6=y > > I put some debugging code into the imx6 pinctrl and I can see that > U-Boot initializes it, but that same debug message doesn't appear in > SPL. > > I looked through the spl build directory, and I can see the drivers > have been built, and the map file shows they exist, but for some > reason, it doesn't initalize. If I remove the UART pin-muxing from my > board file, the text for SPL doesn't' appear at all, so it's clear > pinctrl isn't setting up the proper muxing yet. > > I am trying to figure out how/where the pinctrl system gets > initialized in SPL, and I was hoping someone might have some insight.
Pinctrl will be set as part of device_probe() call[1] for each device. Have you added u-boot,dm-spl for your pinctrl nodes? Try de-compiling spl dts and check if all required nodes are available. [1] http://git.denx.de/?p=u-boot.git;a=blob;f=drivers/core/device.c;h=0d15e5062b66123cd364bd9803e076db7e7dd97c;hb=HEAD#l383 Thanks and regards, Lokesh > > thanks, > > adam > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > https://lists.denx.de/listinfo/u-boot > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
