[U-Boot] [PATCH v7 1/2] Fix board init code to respect the C runtime environment

[Thomas Chou <thomas@wytron.com.tw>]

Hi Albert,

On 2015?11?26? 00:56, Albert ARIBAUD wrote:
> board_init_f_mem() alters the C runtime environment's
> stack it is actually already using. This is not a valid
> behaviour within a C runtime environment.
>
> Split board_init_f_mem into C functions which do not alter
> their own stack and always behave properly with respect to
> their C runtime environment.
>
> Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
> ---
> Copying custodians for all architectures which this
> patch affects.
>
> This patch has been build-tested for all affected
> architectures except NIOS2, and run-tested on ARM
> OpenRD Client.
>
> For NIOS2, this patch contains all manual v1 and v2
> fixes by Thomas.
>
> For x86, this patch contains all manual v2 fixes by Bin.
>
> Changes in v7: None
> Changes in v6:
> - Switch from size- to address-based reservation
> - Add comments on gdp_tr vs gd use wrt arch_setup_gd.
> - Clarify that this is about the *early* malloc arena
>
> Changes in v5:
> - Reword commit message (including summary/subject)
> - Reword comments in ARC code
>
> Changes in v4:
> - Add comments on reserving GD at the lowest location
> - Add comments on post-incrementing base for each "chunk"
>
> Changes in v3:
> - Rebase after commit 9ac4fc82
> - Simplify malloc conditional as per commit 9ac4fc82
> - Fix NIOS2 return value register (r2, not r4)
> - Fix x86 subl argument inversion
> - Group allocations in a single function
> - Group initializations in a single function
>
> Changes in v2:
> - Fix all checkpatch issues
> - Fix board_init_f_malloc prototype mismatch
> - Fix board_init_[f_]xxx typo in NIOS2
> - Fix aarch64 asm 'sub' syntax error
>
>   arch/arc/lib/start.S            |  12 +++--
>   arch/arm/lib/crt0.S             |   3 +-
>   arch/arm/lib/crt0_64.S          |   4 +-
>   arch/microblaze/cpu/start.S     |   4 +-
>   arch/nios2/cpu/start.S          |  14 ++++--
>   arch/powerpc/cpu/ppc4xx/start.S |   6 ++-
>   arch/x86/cpu/start.S            |   3 +-
>   arch/x86/lib/fsp/fsp_common.c   |   4 +-
>   common/init/board_init.c        | 109 ++++++++++++++++++++++++++++++++++++----
>   include/common.h                |  34 ++++++-------
>   10 files changed, 144 insertions(+), 49 deletions(-)
>

Acked-by: Thomas Chou <thomas@wytron.com.tw>