%NOTAGS%

If you would not use the yocto tool to compile the kernel and u-boot, folow these steps:

1.compile section:

export PATH=/opt/altera-linux/linaro/gcc-linaro-arm-linux-gnueabihf-4.7-2012.11-20121123_linux/bin/:$PATH

u-boot:

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- socfpga_cyclone5_config

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- all

kernel:

configure :

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- socfpga_defconfig

compile:

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- LOADADDR=0x8000 uImage

dtb and modules:

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- LOADADDR=0x8000 all

2.boot section:

a.first way:

$ sudo mkdir sdcard
$ sudo mount /dev/sdx1 sdcard/

$ sudo cp socfpga_cyclone5.dtb sdcard/socfpga.dtb
$ sudo cp uImage-socfpga_cyclone5.bin sdcard/uImage

$ sudo umount sdcard/

That is fat partition and can be mounted on the pc host,you can copy the image to it and update it.

b.second way:(tftp and nfs)

in the u-boot cmd:

setenv nfsroot "/dev/nfs"
setenv nfsip "192.192.192.201"
setenv nfsdir "/home/user/share/yocto/build/tmp/work/socfpga_cyclone5-poky-linux-gnueabi/altera-image-1.0-r0/rootfs"
setenv nfsipopt "192.192.192.64:192.192.192.201:192.192.192.201:255.255.255.0:socfpga:eth0:off"
setenv nfsboot "setenv bootargs console=ttyS0,57600 root=${nfsroot} nfsroot=${nfsip}:${nfsdir} ip=${nfsipopt};bootm ${loadaddr} - ${fdtaddr}"
setenv tftpload "tftp ${loadaddr} ${bootimage};tftp ${fdtaddr} ${fdtimage}"

setenv bootcmd "run tftpload;run nfsboot"

saveenv

nfsipopt:

192.192.192.64 is board's ip.

192.192.192.201 is linux host.

192.192.192.201 is gate way ip.

255.255.255.0 is netmask

socfpga is host name, you can specify it arbitrary

eth0 is network card name

you must configure tftp server and nfs server.and you can boot kernel from nfs.

Thanks.