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1  General Category / General Discussion / sheevaplug debugging with openocd on: April 13, 2014, 12:45:11 AM
hi together,

this topic i posted in
https://forum.sparkfun.com/viewtopic.php?f=18&t=38034&p=170228#p170228

i hope i find here somebody who takes a little time for a hint

thanks in advance
2  General Category / General Discussion / OpenOCD on Sheevaplug on: March 31, 2013, 01:07:51 PM
hi community,

can pls somebody help me with my problem

https://forum.sparkfun.com/viewtopic.php?f=18&t=35209

thanks
3  General Category / General Discussion / a newbie needs any infomation about memory layout of sheevaplug 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




4  Linux Stuff / Kernel / how can i change locate address on: October 01, 2011, 04:27:37 AM
hi,

In the kernel configuration i can define
Memory management options
- Physical memory start address: 0x40000000
- Physical memory size               : 0x08000000

After building kernel i get

Loadr Adr:   80001000
Entry Point: 80002000

how can i influence the locate addresses

thank you in advance
5  Hardware and U-Boot firmware / U-Boot stuff / i82559#0 Tx error buffer not ready on: September 27, 2011, 11:04:21 AM
Hi,

I port u-boot on my board with a i82559ER on PCI board.
I have the command-line-menu and can start commands.

I get this error if i start ping-cmd

= ping xx.xxx.xxx.xxx
Trying i82559#0
i82559#0 Tx error buffer not ready
FAIL
ping failed; host 10.110.248.240 is not alive
=

CPU SH7785
U-boot-version 2011.03
Gcc-version 4.1.2

Thank you for any hints
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