[U-Boot] [PATCH] OMAP3 Move cache routines to cache.S

[Paulraj, Sandeep]

> v7_flush_dcache_all, because it depends on omap ROM code is not
> generic.  Rename the function to 'invalidate_dcache' and move it
> to the omap cpu directory.
> 
> Collect the other omap cache routines l2_cache_enable and
> l2_cache_disable with invalide_dcache into cache.S.  This
> means removing the old cache.c file that contained l2_cache_enable
> and l2_cache_disable.
> 
> The conversion from cache.c to cache.S was done most through
> disassembling the uboot binary.  The only significant change was
> to change the comparision for the return of get_cpu_rev from
> 
>    cmp	r0, #0
>    beq	earlier_than_label
> 
> Which was lost information to
> 
>    cmp	r0, #CPU_3XX_ES20
>    blt	earlier_than_label
> 
> The paths through the enable routine were verified by
> adding an infinite loop and seeing the hang.  Then
> removing the infinite loop and seeing it continue.
> 
> The disable routine is similar enough that it was not
> tested with this method.
> 
> Run tested by cold booting from nand on beagle and zoom1.
> Compile tested on MAKEALL arm.
> 
> Signed-off-by: Tom Rix <Tom.Rix at windriver.com>
> ---
>  cpu/arm_cortexa8/cpu.c                 |    2 +-
>  cpu/arm_cortexa8/omap3/Makefile        |    2 +-
>  cpu/arm_cortexa8/omap3/board.c         |    2 +-
>  cpu/arm_cortexa8/omap3/cache.S         |  191
> ++++++++++++++++++++++++++++++++
>  cpu/arm_cortexa8/omap3/cache.c         |   95 ----------------
>  cpu/arm_cortexa8/start.S               |   85 --------------
>  include/asm-arm/arch-omap3/omap3.h     |    2 +
>  include/asm-arm/arch-omap3/sys_proto.h |    2 +-
>  8 files changed, 197 insertions(+), 184 deletions(-)
>  create mode 100644 cpu/arm_cortexa8/omap3/cache.S
>  delete mode 100644 cpu/arm_cortexa8/omap3/cache.c

Applied to u-boot-ti

-Sandeep