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- Subject: Re: [PATCH][CFT] bring ARM memory layout in line with the documented behaviour
- From: "Anders Larsen" <alarsen@rea.de>
- Date: Thu, 18 Sep 2003 14:15:21 +0200
- To: Wolfgang Denk <wd@denx.de>
- ...
- >I still see references to _armboot_start, _armboot_end_data, and
- >_armboot_end - which role do these play now? Can we get rid of them?
- >
- >How are they (should they be) set in your memory map above?
- _armboot_start contains the value of TEXT_BASE (0xA07E0000); it seems
- TEXT_BASE and _armboot_start are both used for the same purpose in
- different parts of the (ARM) code.
- Furthermore, the startup code (cpu/<arm>/start.S) internally uses
- another variable (_TEXT_BASE) with the same content as _armboot_start.
- I agree that this mess should be cleaned up.
- _armboot_end_data is the end address of the initialized data section,
- and is only used in one place (board/logodl/flash.c - the reference in
- lib_arm/board.c is purely informational).
- _armboot_end is the end address of the BSS and is used to determine
- the address of the VFD buffer.
- Eliminating those should be doable, and at least the patch already
- eliminates _armboot_real_end.
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