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→Flashing U-Boot 2nd Stage
==== Flashing U-Boot 2nd Stage ====
Like the 1st stage, 2nd stage is handled by two macro in U-Boot default environment:
<pre class="board-terminal">
NAON#print loadaddr load spi_update
loadaddr=0x81000000
load=tftp ${loadaddr} naon/u-boot.bin
spi_update=sf probe 0:0; sf erase 0x20000 0x40000; sf write ${loadaddr} 0x20000 0x40000
</pre>
Here is the result of running them:
<pre>
NAON#run load spi_update
link up on port 0, speed 100, full duplex
Using cpsw device
TFTP from server 192.168.0.250; our IP address is 192.168.0.78
Filename 'naon/u-boot.bin'.
Load address: 0x81000000
Loading: ######################################
done
Bytes transferred = 193092 (2f244 hex)
8192 KiB AT45DB642D at 0:0 is now current device
</pre>
==== Flashing Linux Kernel ====
