Simon, On Wed, Sep 14, 2011 at 08:47:25AM -0700, Simon Glass wrote: > On Wed, Sep 14, 2011 at 6:47 AM, Jason <u-b...@lakedaemon.net> wrote: > > On Tue, Sep 13, 2011 at 02:06:56PM -0700, Simon Glass wrote: > >> On Tue, Sep 13, 2011 at 7:37 AM, Jason <u-b...@lakedaemon.net> wrote: > >> > Added the remote, thanks. Once we figure out the mach-types thing, I'll > >> > try using the Marvell integrated RTC driver as a real-world example of a > >> > conversion to fdt. I'll probably have questions ;-) > >> > >> That sounds great. I've tried to make it fair straightforward - with > >> an option for building an fdt into U-Boot itself (i.e. don't define > >> CONFIG_OF_SEPARATE). This should allow you to use your current dev > >> flow. > > > > Okay, I have an initial version that compiles, but doesn't work. Which, > > surprisingly, is progress. ;-) I'll post the patch a little bit later > > after I make sure I'm not missing something dumb. > > A few hints: > > - define CONFIG_OF_EMBED to start with, since it will embed the fdt > inside U-Boot which is a good check that all is well. You can move to > the more useful CONFIG_OF_SEPARATE when you get that working > - there is a check in board.c that the fdt is accessible - if it is > dying early then it might be that (early board panic patch is still in > flight)
Frustrating morning. Mainly due to the fact that I've been working with device trees all of two days. Here's what I did: 1.) applied your patches against v2011.09-rc1 (to get mvrtc.c) 2.) applied my dreamplug support patch 3.) modified drivers/rtc/mvrtc.c for OF support 4.) compile 5.) run, then 'date' fails like so: find_alias_node: rtc0 fdt_decode_next_alias failed. Error decoding fdt for mvrtc. ## Get date failed Obviously, I've hacked it up abit to get more error reporting out. Here's my kirkwood-dreamplug.dts: ##### kirkwood-dreamplug.dts #### /dts-v1/; /include/ "kirkwood.dtsi" / { model = "Marvell Dreamplug"; compatible = "marvell,dreamplug", "marvell,kirkwood"; rtc@0xf1010300 { status = "ok"; }; }; ################################# And the kirkwood.dtsi #### kirkwood.dtsi #### / { model = "Marvell Kirkwood"; compatible = "marvell,kirkwood"; #address-cells = <1>; #size-cells = <1>; cpus { #address-cells = <1>; #size-cells = <0>; cpu@0 { compatible = "arm,arm926ejs"; reg = <0>; }; }; rtc@0xf1010300 { compatible = "marvell,kirkwood-rtc"; reg = <0xf1010300 0x02>; status = "disabled"; }; }; ####################### I'd like to make sure my dts files are correct before I get to debugging code. ;-) A few notes: If I compile with '#define DEBUG' in my board config, it builds, but doesn't run, or at least, there's no output on the serial port. I had the remove your fdt_decode_i2c() and clock.h include. The clock.h include seems to be specific to the tegra2 and doesn't exist for kirkwood. thx, Jason. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot