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List: u-boot
Subject: [U-Boot-Users] PPC 405 _start code
From: jwalden () digitalatlantic ! com (Jerry Walden)
Date: 2002-12-14 19:49:01
Message-ID: EGEGIJHKDKJGAJMGIDPNOEHFCCAA.jwalden () digitalatlantic ! com
[Download RAW message or body]
Greetings:
I just build a version of u-boot for the PPC 405GP.
If I disassemble the code that is generated I see the following:
fff80100 <_start>:
fff80100: 38 80 00 00 li r4,0
fff80104: 7c 99 eb a6 mtsgr r4
fff80108: 7c 9a eb a6 mtdcwr r4
fff8010c: 7c 94 f3 a6 mtesr r4
fff80110: 7c 9a f3 a6 mttcr r4
fff80114: 7c 81 03 a6 mtxer r4
fff80118: 7c 96 f3 a6 mtevpr r4
fff8011c: 38 80 10 00 li r4,4096
So to develop a deeper understanding of how all the pieces fit together
I went to the start.S module under the cpu subdirecory. There I
see the _start vector - however the code I see in start.S does not
correspond to the code that I disassembled.
What am I missing?
Kindest Regards,
Jerry
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