I went back to the default device trees in both the u-boot source tree and kernel source tree. I tried copying the version of am57xx-evm-reva3.dts from the kernel version (rcn-4.4.y) to the u-boot source tree (u-boot version 2017.01 patched ala TI and RCN), and DTC flagged the error on the very same line.
It looks like the version of am57xx-evm-reva3.dts in the u-boot tree is calling out a different mode option (MODE_SELECT for the u-boot version vs. MANUAL_MODE for the kernel version) for the DRA7XX_CORE_IOPAD macro than in the kernel version (which appears to be older). In the kernel version of pinmux/dra.h MANUAL_MODE is defined to MODE_SELECT, but in the u-boot version, MANUAL_MODE is gone. There's probably a github change log on this somewhere... I'm not sure what this means in terms of mixing and matching u-boot versions with debian/beagleboard images. I mixed u-boot 2017.01 with the debian 8.6 image for the BB-X15. I could just plunk #define MANUAL_MODE MODE_SELECT on the kernel version of the custom device tree so that we can have the same custom_board_port.DTS file in both u-boot, the kernel, and on target, but I'm not sure this is the best solution... *** Ritisha *** Are you sure you're compiling your DTS file with all of the correct versions of included files ?? Thanks, Jeff On Tuesday, September 19, 2017 at 3:56:32 PM UTC-5, Jeff Andich wrote: > > Hi, > > (I deleted my last-post because it was too wordy.). > > I'm having an issue where I sometimes get DTC compile errors and run-time > behavior when I compile a Device Tree file (dts) within the u-boot source > code tree vs the kernel source tree. I made some modifications to the > device tree, am57xx-evm-reva.dts to enable UART's 1 and 5. The DTS > compiles ok from within the kernel tree, and the am572xEVM/BB-X15 boots > fine with that DTB. However, when I drop that same modified-DTS into the > u-boot source code tree, and build u-boot, the DTC compile breaks. > Additionally, when I fix the compile errors within the u-boot tree, I see > run-time issues when I load that device tree into the /boot/dtbs/uname-r > directory on the BB-X15. > > For u-boot, I'm using 2017.01 with a patchset which is 2-3 months old. > For the kernel, I followed the instructions on eewiki, and checked out the > 4.4.y branch. > > Has anyone seen anything strange like this when compiling DTB's DTBO's? > > Thanks! > > Jeff.. > > > > On Monday, September 18, 2017 at 4:34:02 AM UTC-5, Ritisha Shettigar wrote: >> >> Hello, >> I have interfaced an external RTC. I have added a device tree overlay >> using the link >> https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-I2C2-PCF8523-00A0.dts >> However on compiling, it gives me an error - >> >> *Error: *BB-I2C2-PCF8523-00A0.dts:9.1-9 syntax error >> *FATAL ERROR:* Unable to parse input tree >> >> Have also run *make src/arm/BB-I2C2-PCF8523-00A0.dtbo.* >> >> *Please give me a solution.* >> > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/ae1b12f3-5e20-4bf9-94dd-540fddeaa7d1%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
