arm - Linux kernel for A20 cpu stuck at 'Starting kernel' -


linux kernel version: 4.1.8 board:cubietruck a20 cpu. compiled platform: os x 10.5.5

i follows:

first use sunxi_defconfig default configuration, 'byte_swap.h' not found error occurred. use sun7i_defconfig offered cubieboard, , make -j4 arch=arm cross_compile=arm-none-eabi- zimage,make -j4 arch=arm cross_compile=arm-none-eabi- dtbs.

then burn uboot , spl sdcard , make partitions: 1 boot , 1 root file system. put zimage, script.bin , dtb file on boot partition.

then create boot.cmd below:

fatload mmc 0 0x46000000 zimage fatload mmc 0 0x49000000 sun7i-a20-cubietruck.dtb setenv bootargs console=ttys0,115200 earlyprintk root=/dev/mmcblk0p2 rootwait panic=10 ${extra} bootz 0x46000000 - 0x49000000

and mkimage -c none -a arm -t script -d boot.cmd boot.scr.

so there's 3 files on boot partition:

boot.scr

script.bin

sun7i-a20-cubietruck.dtb

zimage

the uboot works fine.(at least think), here output

u-boot spl 2014.04 (sep 29 2015 - 21:36:09) board: cubietruck dram: 2048 mib cpu: 960000000hz, axi/ahb/apb: 3/2/2 spl: not uimage @ 1600   u-boot 2014.04 (sep 29 2015 - 21:36:09) allwinner technology  cpu:   allwinner a20 (sun7i) board: cubietruck i2c:   ready dram:  2 gib mmc:   sunxi sd/mmc: 0 *** warning - bad crc, using default environment  in:    serial out:   serial err:   serial net:   dwmac.1c50000 hit key stop autoboot:  0  reading uenv.txt ** unable read file uenv.txt ** failed mount ext2 filesystem... ** unrecognized filesystem type ** failed mount ext2 filesystem... ** unrecognized filesystem type ** reading boot.scr 281 bytes read in 16 ms (16.6 kib/s) jumping boot.scr ## executing script @ 44000000 reading zimage 3446280 bytes read in 192 ms (17.1 mib/s) reading sun7i-a20-cubietruck.dtb 26288 bytes read in 30 ms (855.5 kib/s) kernel image @ 0x46000000 [ 0x000000 - 0x349608 ] ## flattened device tree blob @ 49000000    booting using fdt blob @ 0x49000000    loading device tree 4fff6000, end 4ffff6af ... ok  starting kernel ...

any 1 help?


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