[Buildroot] Unable to boot Arm926t with big endian support

Peder Alm peder.alm at semcon.com
Tue Nov 18 15:45:45 UTC 2014

> So that means that your ARM variant doesn't have any big endian support.

> git grep ARCH_SUPPORTS_BIG_ENDIAN                                     ~/source/linux-2.6/arch/arm
> Kconfig:        select ARCH_SUPPORTS_BIG_ENDIAN
> mach-highbank/Kconfig:  select ARCH_SUPPORTS_BIG_ENDIAN
> mach-keystone/Kconfig:  select ARCH_SUPPORTS_BIG_ENDIAN
> mach-mvebu/Kconfig:     select ARCH_SUPPORTS_BIG_ENDIAN
> mach-vexpress/Kconfig:  select ARCH_SUPPORTS_BIG_ENDIAN
> mach-zynq/Kconfig:      select ARCH_SUPPORTS_BIG_ENDIAN

> So big endian is only supported for ixp4xx, highbank, keystone, mvebu, vexpress and zynq.

As I read the Atmel documenation for my CPU it tells me that it does support both little and big endian. Found this on at.com:
Look at the bottom of page 40 in the doc6221.pdf doc,it says
"For more details, see Chapter 2 in ARM926EJ-S TRM, ref. DDI0198B."

Looking in the "ARM926EJ-S Technical Reference Manual" on page 2-13,
located at:

we find:
Table 2-11 Control bit functions register c1 (continued)
[7] B bit Endianness: 0 = Little-endian operation 1 = Big-endian operation. Set to
the value of BIGENDINIT on reset.


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