buildroot

This is the buildroot board support for the Avnet Spartan6 LX9 MicroBoard.

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The Avnet S6LX9 Microboard is a small USB-Stick sized module containing

a Spartan6 FPGA capable of running the Microblaze softcore processor

together with RAM and FLASH memory.

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The board can be bought from Avnet (avnet.com) or from Trenz Electronic

(www.trenz-electronic.de) for a low price.

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To run the Linux built with buildroot you have to install the FPGA bitfile

and u-boot as described in the tutorial AvtS6LX9MicroBoard_SW302_PetaLinux

available on http://www.em.avnet.com/s6microboard

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On this site also is a forum containing information on how to build your own

Microblaze processor for the Microboard.

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The image file (default name is simpleImage.lx9_mmu.ub) has to be copied

to your tftp folder (often /tftpboot/) or can be programmed into the

board's SPI flash.

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Sample session:

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$ make s6lx9_microboard_defconfig

$ make

$ cp build/linux-<version>/arch/microblaze/boot/simpleImage.lx9_mmu.ub /tftpboot/br12.2a.ub

$ minicom

<hit the reset button on the S6LX9 Microboard>

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                Icache:ON

                Dcache:ON

        U-Boot Start:0x83f00000

SF: Got idcode 20 ba 18 10 01

*** Warning - bad CRC, using default environment

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Net:   Xilinx_Emaclite

MAC:   00:0a:35:00:63:37

U-BOOT for Avnet-LX9-Microboard-AXI-tiny-13.1

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BOOTP broadcast 1

DHCP client bound to address 192.168.11.122

Hit any key to stop autoboot:  0

U-Boot-PetaLinux> tftp br12.2a.ub

Using Xilinx_Emaclite device

TFTP from server 192.168.11.10; our IP address is 192.168.11.122

Filename 'br12.2a.ub'.

Load address: 0x80002000

Loading: #################################################################

         #################################################################

         #################################################################

         #################################################################

         #################################################################

         ##############################

done

Bytes transferred = 5207724 (4f76ac hex)

U-Boot-PetaLinux> bootm

## Booting kernel from Legacy Image at 80002000 ...

   Image Name:   Linux-3.1.0

   Image Type:   MicroBlaze Linux Kernel Image (uncompressed)

   Data Size:    5207660 Bytes =  5 MB

   Load Address: 80000000

   Entry Point:  80000000

   Verifying Checksum ... OK

   Loading Kernel Image ... OK