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For XM vendor boards with XM510 SoC ONLY!!!

Initial device firmware update

setenv bootargs 'mem=18M console=ttyAMA0,115200 panic=20 root=/dev/mtdblock3 rootfstype=squashfs init=/init mtdparts=xm_sfc:256k(boot),64k(env),2048k(kernel),5120k(rootfs),-(rootfs_data)'
setenv bootcmd 'sf probe 0; sf read 0x80007fc0 0x50000 0x200000; bootm 0x80007fc0'
setenv uk1 'mw.b 0x80007fc0 ff 1000000; tftp 0x80007fc0 uImage.${soc}'
setenv uk2 'sf probe 0; sf erase 0x50000 0x200000; sf write 0x80007fc0 0x50000 ${filesize}'
setenv uk 'run uk1 ; run uk2'
setenv ur1 'mw.b 0x80007fc0 ff 1000000; tftp 0x80007fc0 rootfs.squashfs.${soc}'
setenv ur2 'sf probe 0; sf erase 0x250000 0x500000; sf write 0x80007fc 0x250000 ${filesize}'
setenv ur 'run ur1 ; run ur2'
saveenv

setenv soc xm510                 # Your SoC. xm510.
setenv osmem 18M                 # 18M for xm510.
setenv totalmem 32M              # 32M for xm510.
setenv ipaddr 192.168.1.10       # Your camera IP address.
setenv serverip 192.168.1.254    # Your TFTP server IP address.
saveenv

run uk; run ur; reset            # Flash kernel, rootfs and reboot device

Follow-up quick updates

run uk; run ur; reset

Notes

After you have finished flashing new firmware, please run firstboot command to format jffs2 partition used to store settings.

Load kernel modules

cd /lib/modules/3.0.101\+/xiongmai/
/usr/bin/load_xiongmai

Known issues

For Linux kernel built with the original toolchain (gcc 4.9.2) everything works as expected, but for the same .config built with OpenIPC toolchain (gcc 7.5.0) pty (and only pty) doesn't work. That is weird, and we also ran out of ideas how to fix that. https://t.me/openipc/20225

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