On Tue, Jan 28, 2014 at 5:31 PM, Robert Nelson <robertcnel...@gmail.com> wrote: > With the xM revision C, the DC control of the usb hub was inverted. > > By adding the enable-active-high property to hsusb2_power_reg, mainline > omap3-beagle-xm.dtb > will now activiate properly activate the usb hub on older xMA/B varients. > > Signed-off-by: Robert Nelson <robertcnel...@gmail.com> > CC: Tom Rini <tr...@ti.com> > --- > include/configs/omap3_beagle.h | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h > index c58bc91..d7d63ce 100644 > --- a/include/configs/omap3_beagle.h > +++ b/include/configs/omap3_beagle.h > @@ -249,6 +249,9 @@ > "setenv fdtfile omap3-beagle-xm.dtb; fi; " \ > "if test $fdtfile = undefined; then " \ > "echo WARNING: Could not determine device tree to > use; fi; \0" \ > + "fixfdt=" \ > + "if test $beaglerev = xMAB; then " \ > + "fdt addr ${fdtaddr}; fdt resize; fdt set > /hsusb2_power_reg enable-active-high; fi; \0" \ > "bootenv=uEnv.txt\0" \ > "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenv}\0" \ > "importbootenv=echo Importing environment from mmc ...; " \ > @@ -308,6 +311,7 @@ > "setenv bootfile zImage;" \ > "if run loadimage; then " \ > "run loadfdt;" \ > + "run fixfdt;" \ > "run mmcbootz; " \ > "fi; " \ > > -- > 1.8.5.3
I've listed this as an RFC, as i'm not sure if there is a generic way we should be doing device tree fixup's in u-boot. I have thought about splitting omap3-beagle-xm.dtb into two variants "ab" and "c" with just a simple one line delta: https://github.com/RobertCNelson/armv7-multiplatform/blob/v3.13.x/patches/omap3_beagle_xm_rework/0002-ARM-dts-omap3-beagle-xm-ab-usb-host-is-active-high-t.patch But it's just so trivial to just fix it in u-boot instead. Thoughts? Regards, -- Robert Nelson http://www.rcn-ee.com/ _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot