1U-BOOT Port for FSForth ModNET50 Board
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3
4author: Thomas Elste <info@elste.org>
5	IMMS gGmbH <www.imms.de>
6
7The port based upon an early (partial complete)
8armboot-port from Stephan Linz for the ModNET50 Board.
9
10
11Overview:
12
13- board with Netsilicon NET+50 ARM7TDMI CPU without MMU
14- 16 MB SDRAM
15- 2 MB Flash (MBL29LV160BE)
16- 10/100 Ethernet PHY (LXT971A)
17
18
19Current Configuration (include/configs/modnet50.h):
20
21Memory Map: 0x00000000 - 0x00FFFFFF 16M SDRAM
22	    0x10000000 - 0x101FFFFF  2M Flash
23
24The Flash uses a BB-Architectur with 35 sectors
25(0:16K; 1,2:8K; 3:32K; 4-34:64K). U-Boot is located in
26the first 5 sectors.
27
28The environment is located at the end of the 4th Flash
29sector (0x1001C000-0x1001FFFF).
30
31Build:
32
33U-boot should be build by using the ELDK Toolchain (arm-linux-*).
34
35	make modnet50_config
36	make
37
38
39Status:
40
41Everything seems to work fine. Booting images was tested by
42booting uCLinux (with and without a separate ramdisk image) from
43flash.
44
45
46Files:
47
48arch/arm/cpu/arm720t/serial_netarm.c .. serial I/O for the cpu
49
50board/modnet50/lowlevel_init.S   .. memory setup for ModNET50
51board/modnet50/flash.c	    .. flash routines
52board/modnet50/modnet50.c   .. some board init stuff
53
54drivers/net/netarm_eth.c    .. ethernet driver for the NET+50 CPU
55drivers/net/netarm_eth.h    .. header for ethernet driver
56
57include/configs/modnet50.h  .. configuration file for ModNET50
58
59include/netarm_*.h	    .. register and macro definitions for
60			       the NETARM CPU family
61
62doc/README.modnet50	    .. this readme
63