Merge from bittboy/buildroot@db180c0

board/openblocks/a6/readme.txt

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+Openblocks A6
+
+Intro
+=====
+
+This default configuration will allow you to start experimenting with the
+buildroot environment for the Openblocks A6. With the current configuration
+it will bring-up the board, and allow access through the serial console.
+
+How to build it
+===============
+
+Configure Buildroot:
+
+    $ make openblocks_a6_defconfig
+
+Compile everything:
+
+    $ make
+
+Updating board over TFTP
+========================
+
+Copy the content of output/images to the root of your TFTP server.
+
+Connect serial and ethernet, power up board and stop it in U-Boot:
+
+DRAM (DDR2) CAS Latency = 5 tRP = 5 tRAS = 14 tRCD=5
+DRAM CS[0] base 0x00000000   size 512MB
+DRAM Total size 512MB  16bit width
+Addresses 8M - 0M are saved for the U-Boot usage.
+Mem malloc Initialization (8M - 7M): Done
+NAND:64 MB
+POST:  mac verify Eth0 PASSED
+
+CPU : Marvell Feroceon (Rev 1)
+
+Streaming disabled
+Write allocate disabled
+
+
+USB 0: host mode
+Net:   egiga0
+Hit any key to stop autoboot:  0
+openblocks>>
+
+
+Load kernel from tftp:
+
+setenv serverip <tftp-server-ip>
+setenv bootfile uImage.kirkwood-openblocks_a6
+bootp && tftp
+
+
+Write it to nand:
+
+nand erase 0x590000 0x1c5c000
+nand write.e $loadaddr 0x590000 0x1c5c000
+
+
+Load rootfs from tftp:
+
+setenv serverip <tftp-server-ip>
+setenv bootfile rootfs.jffs2
+bootp && tftp
+
+
+Write it to nand:
+
+nand erase 0x2214000 0x1dc4000
+nand write.jffs2 $loadaddr 0x2214000 0x1dc4000
+
+
+Configure kernel to use rootfs:
+
+setenv root /dev/mtdblock5 rootfstype=jffs2
+saveenv
+boot