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Author Topic: a newbie needs any infomation about memory layout of sheevaplug  (Read 717 times)
elvis61
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« on: August 27, 2012, 07:52:56 AM »

hi,

i have recently a sheevaplug model: 003-SP1001.

The following are on board implemented
...........
...........
U-Boot 1.1.4 (Jul 14 2009 - 06:46:57) Marvell version: 3.4.16
..........
..........
Uncompressing Linux....................................................................
Linux version 2.6.22.18 (dhaval@devbox) (gcc version 4.2.1) #1 Thu Mar 19 14:46:22 IST9
..........
...........

0x00100000-0x00500000 : "uImage"
0x00500000-0x20000000 : "rootfs"
.........

But i want update these parts. Before i overwrite the implemented stuff i wanted save it. Therefore i informed about memory layout to find out where the seperate parts are in the flash memory

i found out following:
---------------------------
512MB - Flash: 0000 0000 .... 1FFF FFFF
------------------
0000 0000 .... 000A 0000 -> u-boot
0010 0000 .... 004F FFFF -> kernel
0050 0000 .... 1FFF FFFF -> rootfs


512MB - RAM: 0000 0000 .... 1FFF FFFF
------------------
0080 0000 .... 008A 0000 -> u-boot.bin loaded
0200 0000 .... 0240 0000 -> kernel loaded

Now i wonder flash and ram have the same address area. Can it be really or i don't understood it ?

If i can not save the installed parts in this way, where can i get the same parts or updated/recommended version of them ?

every hint is appreciated




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