Processor module description

Processor module AXSY-SoM-SAMA5D3x

 

Module placement plan in the NAND Flash

Running Embedded Linux from SD card

Next, you need to insert card into the MCI0 port and turn on the power. Boot will begin and then AT91Bootstrap Uboot. Starting the boot image in Uboot need to stop pressing "Space."

Next, you need to recordfile system image to NAND Flash. For this you need to run the following commands:

	mmc rescan
fatload mmc 0 0x22000000 rootfs.ubi

After loading rootfs.ubi in memory the following message appears:

	reading rootfs.ubi
29753344 bytes read

It is necessary to translate the size of subtracts data in HEX, in this case 0x1C60000, and use asa last parameter of the command nand write.trimffs..

	nand erase 0x800000 0xf800000
nand write.trimffs 0x22000000 0x800000 0x1с60000

Next, you need to replace the boot arguments:

	setenv bootargs="console=ttyS0,115200 mtdparts=atmel_nand:8M(bootstrap/uboot/kernel)ro,-(rootfs) rw rootfstype=ubifs ubi.mtd=1 root=ubi0:rootfs"

After the above steps it is enough to restart the board, and Linux will boot automatically.

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