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RE: SDRAM config



Hi,

>entered my config value (0x01A00058)

This is a bad value. The configuration for group0 and group1 should
always be identical to be on the safe side. Use tool available at
http://developer.axis.com/doc/hardware/etrax100lx/sdram_config/
to calculate your config.

>After making the kernel i tried
>boot_linux -F -p

How did you remake the kernel?

Something like this should do it (from the top directory):

make kernel && make images

If that doesn't help try a make clean in os/linux and then
make kernel && make images from the top directory

>Why are there so many -setreg b0000008 ? I would like to have b0000008 set
>to 80409040.

All the b0000008 are used to initialize the SDRAMs. All these values
are automatically generated from the value you enter. The last value
should be the same as you enterred.

/Mikael

-----Original Message-----
From: owner-dev-etrax@xxxxxxx.com]On">mailto:owner-dev-etrax@xxxxxxx.com]On
Behalf Of Alex Raimondi
Sent: Wednesday, January 29, 2003 10:29 AM
To: dev-etrax
Subject: SDRAM config


Hi

I have to set my own sdram config.
I made make xconfig in os/linux and entered my config value (0x01A00058)
into the field R_SDRAM_CONFIG.
After making the kernel i tried
boot_linux -F -p

this brought up a line like this:
etrax100boot ..... -setreg b000000C 09603737 -setreg.........

if i have a look into kernelconfig.latest i can find there my value. What's
going on?

Why are there so many -setreg b0000008 ? I would like to have b0000008 set
to 80409040.

Thanks

Alex