Microblaze: added defconfig for Avnet S6LX9 Microboard

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.

This board support pachage assumes that the Microblaze Bitfile
available from the Avnet website is programmed into the FPGA.

Signed-off-by: Stephan Hoffmann <sho@relinux.de>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

1 files changed, 70 insertions, 0 deletions

diff --git a/board/avnet/s6lx9_microboard/readme.txt b/board/avnet/s6lx9_microboard/readme.txt
new file mode 100644
index 000000000..3cb2ce982
--- /dev/null
+++ b/board/avnet/s6lx9_microboard/readme.txt
@@ -0,0 +1,70 @@
+This is the buildroot board support for the Avnet Spartan6 LX9 MicroBoard.
+
+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.
+
+The board can be bought from Avnet (avnet.com) or from Trenz Electronic
+(www.trenz-electronic.de) for a low price.
+
+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
+
+On this site also is a forum containing information on how to build your own
+Microblaze processor for the Microboard.
+
+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.
+
+Sample session:
+
+$ 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>
+
+                Icache:ON
+                Dcache:ON
+        U-Boot Start:0x83f00000
+SF: Got idcode 20 ba 18 10 01
+*** Warning - bad CRC, using default environment
+
+Net:   Xilinx_Emaclite
+MAC:   00:0a:35:00:63:37
+U-BOOT for Avnet-LX9-Microboard-AXI-tiny-13.1
+
+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
+OK
+## Transferring control to Linux (at address 80000000), 0x80000000 ramdisk 0x00000000, FDT 0x00000000...
+Early console on uartlite at 0x40600000
+..... boot log skipped
+
+Welcome to Microblaze Buildroot
+Microblaze login: