Angelos Manousarides wrote:
env_offset is defined at common/environment.c, and this is the defined used by other boards as well. BUT:
$ arm-linux-objdump -d common/environment.o
common/environment.o: file format elf32-littlearm
Disassembly of section .text:
00000000 <env_size>: 0: 00 80 00 00 ....
00000004 <environment>: 4: 85 6f 43 92 62 6f 6f 74 64 65 6c 61 79 3d 35 00 .oC.bootdelay=5. 14: 62 61 75 64 72 61 74 65 3d 31 31 35 32 30 30 00 baudrate=115200. ...
Well, I decided to change the linker script to :
cpu/pxa/start.o (.text) . = 16 * 1024 - 4; common/environment.o (.text) *(.text)
This way the environment will be alligned at the right address and I don't have to change the u-boot code.
What is the story of the env_size variable? The tools tin tools/env/* do not use this variable, the environment size is retrieved from the configuration files.
The only reference I found was in tools/envcrc.c:
#ifdef ENV_IS_EMBEDDED extern unsigned int env_size; extern unsigned char environment; #endif /* ENV_IS_EMBEDDED */
These declarations though are not used anywhere on the code that follows!
In the actual u-boot code (not the tools) there is no usage. Is it some kind of a legacy mechanism, leftover from older versions of u-boot?
-- Angelos Manousaridis