U-BOOT Port for FSForth ModNET50 Board -------------------------------------- author: Thomas Elste IMMS gGmbH The port based upon an early (partial complete) armboot-port from Stephan Linz for the ModNET50 Board. Overview: - board with Netsilicon NET+50 ARM7TDMI CPU without MMU - 16 MB SDRAM - 2 MB Flash (MBL29LV160BE) - 10/100 Ethernet PHY (LXT971A) Current Configuration (include/configs/modnet50.h): Memory Map: 0x00000000 - 0x00FFFFFF 16M SDRAM 0x10000000 - 0x101FFFFF 2M Flash The Flash uses a BB-Architectur with 35 sectors (0:16K; 1,2:8K; 3:32K; 4-34:64K). U-Boot is located in the first 5 sectors. The environment is located at the end of the 4th Flash sector (0x1001C000-0x1001FFFF). Build: U-boot should be build by using the ELDK Toolchain (arm-linux-*). make modnet50_config make Status: Everything seems to work fine. Booting images was tested by booting uCLinux (with and without a separate ramdisk image) from flash. Files: cpu/arm720t/serial_netarm.c .. serial I/O for the cpu board/modnet50/lowlevel_init.S .. memory setup for ModNET50 board/modnet50/flash.c .. flash routines board/modnet50/modnet50.c .. some board init stuff drivers/netarm_eth.c .. ethernet driver for the NET+50 CPU drivers/netarm_eth.h .. header for ethernet driver include/configs/modnet50.h .. configuration file for ModNET50 include/netarm_*.h .. register and macro definitions for the NETARM CPU family doc/README.modnet50 .. this readme