> On Dec 26, 2014, at 15:47 , Thorsten von Eicken <[email protected]> wrote: > > I don't see how to make this stuff work... I used dtb-rebuilder to produce > the provided DTB with ttyO4: > # ls -ls /boot/dtbs/`uname -r`/*tty* > 88 -rw-r--r-- 1 root root 86762 Dec 26 21:37 > /boot/dtbs/3.14.4.1-bone-armhf.com/am335x-boneblack-ttyO1.dtb > 88 -rw-r--r-- 1 root root 86762 Dec 26 21:37 > /boot/dtbs/3.14.4.1-bone-armhf.com/am335x-boneblack-ttyO2.dtb > 84 -rw-r--r-- 1 root root 85197 Dec 26 21:37 > /boot/dtbs/3.14.4.1-bone-armhf.com/am335x-boneblack-ttyO4.dtb > 84 -rw-r--r-- 1 root root 85197 Dec 26 21:37 > /boot/dtbs/3.14.4.1-bone-armhf.com/am335x-boneblack-ttyO5.dtb > 84 -rw-r--r-- 1 root root 85077 Dec 26 21:37 > /boot/dtbs/3.14.4.1-bone-armhf.com/am335x-bone-ttyO1.dtb > 84 -rw-r--r-- 1 root root 85077 Dec 26 21:37 > /boot/dtbs/3.14.4.1-bone-armhf.com/am335x-bone-ttyO2.dtb > 84 -rw-r--r-- 1 root root 85077 Dec 26 21:37 > /boot/dtbs/3.14.4.1-bone-armhf.com/am335x-bone-ttyO4.dtb > 84 -rw-r--r-- 1 root root 85077 Dec 26 21:37 > /boot/dtbs/3.14.4.1-bone-armhf.com/am335x-bone-ttyO5.dtb > I edited uEnv.txt to set the dtb: > # cat /boot/uboot/uEnv.txt > dtb=am335x-boneblack-ttyO4.dtb > uenvcmd=run findmmc1; run findmmc0; if run loaduimage; then run loadfdt; run > mmcboot; fi; > optargs=fixrtc capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN > findmmc1=if test $board_name = A335BNLT; then setenv mmc1 1; else setenv mmc1 > 0; fi > findmmc0=setenv mmcdev 0; mmc dev ${mmcdev}; if mmc rescan; then setenv mmc0 > 1; else setenv mmc0 0; fi > mmcroot=/dev/mmcblk0p2 rw > loadfdt=ext4load mmc ${mmcdev}:2 ${fdtaddr} /boot/dtbs/${fdtfile} > loaduimage=if ext4load mmc 0:2 ${loadaddr} /boot/zImage; then setenv mmcdev > 0; else setenv mmcdev 1; if test $mmc0 = 1; then setenv mmcroot > /dev/mmcblk1p2 rw; fi; ext4load mmc 1:2 ${loadaddr} /boot/zImage; fi > I don't see any /dev/ttyO4 appearing after a reboot: > # ls /dev/ttyO* > /dev/ttyO0 /dev/ttyO1 > I don't see how to figure out whether uboot loaded the proper dtb, dunno > where that ends up in any log file. Dunno how to troubleshoot this any > further.
Anything in dmesg? -- Rick Mann [email protected] -- 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]. For more options, visit https://groups.google.com/d/optout.
