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Re: initial bootstrap and jtag

To: Clem Taylor <>
Subject: Re: initial bootstrap and jtag
From: Dan Malek <>
Date: Mon, 31 Jan 2005 15:21:26 -0500
In-reply-to: <>
Original-recipient: rfc822;
References: <>

On Jan 31, 2005, at 3:07 PM, Clem Taylor wrote:

.... Looking over the list some people seem to be using the
Abatron BDI 2000 ...

This is clearly the best.

....  Who is
responsible for configuring the PLL or SDRAM enough to allow code to
be loaded into SDRAM?

Code in the boot rom.  Plus, they likely do much more.  YAMON does lots
of board specific initialization, so when porting Linux to an Au1xxx that doesn't use YAMON, you are going to have to add to the Linux initialization functions for the board. U-Boot is a popular boot monitor that is now finding it's way
to the Au1xxx processors.

... Are bootloaders like YAMON position independent
to run out of SDRAM?

Yes, they usually do that.

        -- Dan

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