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