I have problem with starting kernel. I compiled my kernel with am335x-evm_defconfing. Before compilation I added initramfs, and I shown my own rootfs. When the compilations was end, I transfered my zImage to NFS folder. I restarted NFS demon, and turned on Sitara. In main menu u-Boot I executed this command.
setenv bootfile zImage
setenv fdtfile am335x.dtb
setenv serverip <serverip>
dhcp
After this command a whole image was transfered.
tftp ${fdtaddr} ${fdtfile};
bootz ${loadaddr} - ${fdtaddr};
After this command I saw this console lines
#### Flattened Device Tree blob at 80f80000
Booting using the fdt blob at 0x80f80000
Loading Device Tree to 8f321000, end 8f32c4e6 ... OK
Starting kernel ...
And in this stage process was hang. Any suggestion about it.? Maybe I do something wrong.
For append I paste my variables from u-Boot environment.
arch=arm
baudrate=115200
board=am335x
board_name=FLogicSi
board_rev=B.01
boot_fdt=try
boot_targets= mmc0 nand
bootcmd=for target in ${boot_targets}; do run bootcmd_${target}; done
bootcmd_mmc0=setenv devnum 0; setenv rootpart 2; run mmc_boot;
bootcmd_nand=run nandboot;
bootcmd_usb=setenv devnum 0; run usb_boot;
bootdelay=3
bootdir=/boot
bootenv=uEnv.txt
bootfile=kernelDM
bootpart=0:2
console=ttyO0,115200n8
cpu=armv7
dfu_alt_info_emmc=rawemmc mmc 0 3751936
dfu_alt_info_mmc=boot part 0 1;rootfs part 0 2;MLO fat 0 1;MLO.raw mmc 100 100;u-boot.img.raw mmc 300 400;spl-os-args.raw mmc 80 80;spl-os-image.raw mmc 900 2000;spl-o1
dfu_alt_info_nand=NAND.SPL part 0 1;NAND.SPL.backup1 part 0 2;NAND.SPL.backup2 part 0 3;NAND.SPL.backup3 part 0 4;NAND.u-boot-spl-os part 0 5;NAND.u-boot part 0 6;NAND0
dfu_alt_info_ram=kernel ram 0x80200000 0xD80000;fdt ram 0x80F80000 0x80000;ramdisk ram 0x81000000 0x4000000
dnsip=10.0.0.1
eth1addr=d0:ff:50:b3:58:2e
ethact=cpsw
ethaddr=d0:ff:50:b3:58:2c
fdt_high=0xa0000000
fdtaddr=0x80F80000
fdtfile=am335x-flsi-usb.dtb
fileaddr=80f80000
filesize=84e7
findfdt=if test $board_name = A335BONE; then setenv fdtfile am335x-bone.dtb; fi; if test $board_name = A335BNLT; then setenv fdtfile am335x-boneblack.dtb; fi; if test
gatewayip=10.0.0.1
importbootenv=echo Importing environment from mmc ...; env import -t $loadaddr $filesize
ipaddr=10.0.0.32
loadaddr=0x80200000
loadbootenv=load mmc ${mmcdev} ${loadaddr} ${bootenv}
loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}
loadimage=load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile}
loadramdisk=load mmc ${mmcdev} ${rdaddr} ramdisk.gz
mmc_boot=setenv devtype mmc; if mmc dev ${devnum}; then run mmcargs;run scan_boot; run mmcboot;setenv mmcdev 1; setenv bootpart 1:2; run mmcboot;fi
mmcargs=setenv bootargs console=${console} ${optargs} root=${mmcroot} rootfstype=${mmcrootfstype}
mmcboot=mmc dev ${mmcdev}; if mmc rescan; then echo SD/MMC found on device ${mmcdev};if run loadbootenv; then echo Loaded environment from ${bootenv};run importbootenv;
mmcdev=0
mmcloados=run mmcargs; if test ${boot_fdt} = yes || test ${boot_fdt} = try; then if run loadfdt; then bootz ${loadaddr} - ${fdtaddr}; else if test ${boot_fdt} = try; t;
mmcroot=/dev/mmcblk0p2 ro
mmcrootfstype=ext4 rootwait
mtdids=nand0=nand.0
mtdparts=mtdparts=nand.0:128k(NAND.SPL),128k(NAND.SPL.backup1),128k(NAND.SPL.backup2),128k(NAND.SPL.backup3),256k(NAND.u-boot-spl-os),1m(NAND.u-boot),128k(NAND.u-boot-)
nandargs=setenv bootargs console=${console} ${optargs} root=${nandroot} rootfstype=${nandrootfstype}
nandboot=echo Booting from nand ...; run nandargs; nand read ${fdtaddr} NAND.u-boot-spl-os; nand read ${loadaddr} NAND.kernel; bootz ${loadaddr} - ${fdtaddr}
nandroot=ubi0:rootfs rw ubi.mtd=NAND.file-system,2048
nandrootfstype=ubifs rootwait=1
netargs=setenv bootargs console=${console} ${optargs} root=/dev/nfs
nfsroot=${serverip}:${rootpath},${nfsopts} rw ip=dhcp
netboot=echo Booting from network ...; setenv autoload no; dhcp; tftp ${loadaddr} ${bootfile}; tftp ${fdtaddr} ${fdtfile}; run netargs; bootz ${loadaddr} - ${fdtaddr}
netmask=255.0.0.0
nfsopts=nolock
partitions=uuid_disk=${uuid_gpt_disk};name=rootfs,start=2MiB,size=-,uuid=${uuid_gpt_rootfs}
ramargs=setenv bootargs console=${console} ${optargs} root=${ramroot}
rootfstype=${ramrootfstype}
ramboot=echo Booting from ramdisk ...; run ramargs; bootz ${loadaddr} ${rdaddr} ${fdtaddr}
ramroot=/dev/ram0 rw ramdisk_size=65536 initrd=${rdaddr},64M
ramrootfstype=ext2
rdaddr=0x81000000
rootpart=2
rootpath=/export/rootfs
scan_boot=echo Scanning ${devtype} ${devnum}...; for prefix in ${bootdir}; do for script in ${bootfile}; do run script_boot; done; done;
script_boot=if load ${devtype} ${devnum}:${rootpart} ${loadaddr} ${bootdir}/${bootfile}; then run findfdt; load ${devtype} ${devnum}:${rootpart} ${fdtaddr} ${bootdir}/;
serverip=10.0.0.10
soc=am33xx
spiargs=setenv bootargs console=${console} ${optargs} root=${spiroot} rootfstype=${spirootfstype}
spiboot=echo Booting from spi ...; run spiargs; sf probe ${spibusno}:0; sf read ${loadaddr} ${spisrcaddr} ${spiimgsize}; bootz ${loadaddr}
spibusno=0
spiimgsize=0x362000
spiroot=/dev/mtdblock4 rw
spirootfstype=jffs2
spisrcaddr=0xe0000
static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off
stderr=serial
stdin=serial
stdout=serial
usb_boot=setenv devtype usb; run usb_init; if usb dev 0; then run usbargs;run scan_boot; bootz ${loadaddr} - ${fdtaddr}; fi
usb_init=usb start 0;
usbargs=setenv bootargs console=${console} ${optargs} root=${usbroot} rootfstype=${usbrootfstype}
usbnet_devaddr=d0:ff:50:b3:58:2e
usbroot=/dev/sda2 rw
usbrootfstype=ext4 rootwait
vendor=ti
ver=U-Boot 2013.10-00189-g78d8ebd-dirty (Oct 15 2014 - 17:35:33)
Environment size: 5565/131067 bytes
This is output of printenv. I think variable console is correct.
And in the menuconfig of the kernel i have this value:
root=/dev/mmcblk0p2 rootwait console=ttyO0,115200
BR
Daniel
ADDENDUM -- Console Log for transfer
U-Boot# setenv bootfile kernelDM
U-Boot# setenv fdtfile am335x-flsi-usb.dtb
U-Boot# setenv serverip 10.0.0.10
U-Boot# dhcp
link up on port 0, speed 1000, full duplex
BOOTP broadcast 1
DHCP client bound to address 10.0.0.32
Using cpsw device TFTP from server 10.0.0.10; our IP address is 10.0.0.32
Filename 'kernelDM'.
Load address: 0x80200000
Loading: ################# ... ### 2.4 MiB/s
done
Bytes transferred = 29544136 (1c2cec8 hex)