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

Paulraj, Sandeep
2009-09-10T23:39:34Z

> 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@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