U-Boot Commands
LITE5200B User’s Manual, Rev. 0
7-40
Freescale Semiconductor
7.38
MW
mw [.b, .w, .l] address value [count]
– Write memory.
The
mw
is a way to initialize (fill) memory with some value. When called without a count argument, the
value will be written only to the specified address. When used with a count, then a whole memory areas
will be initialized with this value:
=> md 100000 10
00100000: 0000000f 00000010 00000011 00000012 ................
00100010: 00000013 00000014 00000015 00000016 ................
00100020: 00000017 00000018 00000019 0000001a ................
00100030: 0000001b 0000001c 0000001d 0000001e ................
=> mw 100000 aabbccdd
=> md 100000 10
00100000: aabbccdd 00000010 00000011 00000012 ................
00100010: 00000013 00000014 00000015 00000016 ................
00100020: 00000017 00000018 00000019 0000001a ................
00100030: 0000001b 0000001c 0000001d 0000001e ................
=> mw 100000 0 6
=> md 100000 10
00100000: 00000000 00000000 00000000 00000000 ................
00100010: 00000000 00000000 00000015 00000016 ................
00100020: 00000017 00000018 00000019 0000001a ................
00100030: 0000001b 0000001c 0000001d 0000001e ................
=>
=> mw.w 100004 1155 6
=> md 100000 10
00100000: 00000000 11551155 11551155 11551155 .....U.U.U.U.U.U
00100010: 00000000 00000000 00000015 00000016 ................
00100020: 00000017 00000018 00000019 0000001a ................
00100030: 0000001b 0000001c 0000001d 0000001e ................
=> mw.b 100007 ff 7
=> md 100000 10
00100000: 00000000 115511ff ffffffff ffff1155 .....U.........U
00100010: 00000000 00000000 00000015 00000016 ................
00100020: 00000017 00000018 00000019 0000001a ................
00100030: 0000001b 0000001c 0000001d 0000001e ................
=>