HRCW is ALWAYS at the START of your flash (assuming your flash is less than 16MB -- in that case, it is at 0xfe000000). The HRCW will be at 0xfff00000 ONLY if your flash is exactly 1MB.

Strictly speaking, the HRCW does not have any address: the processor asserts CS0 and reads the HRCW from offsets 0..31 in whatever memory is enabled when CS0 is asserted. It isn't until OR0/BR0 is configured (which is part of what is controlled by the HRCW) that you can talk about addresses.

gvb

-----Original Message----- From: u-boot-users-admin@lists.sourceforge.net [mailto:u-boot-users-admin@lists.sourceforge.net]On Behalf Of mblack@mantaro.com Sent: Friday, July 09, 2004 8:46 AM To: u-boot-users@lists.sourceforge.net Subject: [U-Boot-Users] moving u-boot to upper address

I want u-boot to live in the upper boot area 0xfff00000.

So I have

undef'd _BOOT_LOW changed TEXT_BASE to be 0xfff00000 changed CFG_MONITOR_BASE to be TEXT_BASE

I realize that the HRCW will now be placed at 0xfff00000 and the actual code will begin at 0xfff00100 - this is okay, I will handle the HRCW seperatly.

I just want to know if there is anything wrong with what I have done or if there is anything else I need to do? There are, as you know, many dependancies and I am afraid I might have missed one.

I am dealing with custom hardware and I don't have a hardware debugger - lots of flash and crash so I am not exactly sure where my problem is.

Thanks!

Mitch

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