[U-Boot] [PATCH v2 1/3] ARM: cache: add an empty stub function for invalidate/flush dcache

Marek Vasut
2015-06-05T13:18:49Z

On Friday, June 05, 2015 at 09:47:30 AM, Josh Wu wrote:
> Since some driver like ohci, lcd used dcache functions. But some ARM
> cpu don't implement the invalidate_dcache_range()/flush_dcache_range()
> functions.
>
> To avoid compiling errors this patch adds an weak empty stub function
> for all ARM cpu.
>
> And each cpu can implement its own implementation. If not implemented
> by default it will use an empty function.
>
> Signed-off-by: Josh Wu <josh.wu@atmel.com>
> ---
>
> Changes in v2: new added
>
> arch/arm/lib/cache.c | 9 +++++++++
> 1 file changed, 9 insertions(+)

So, why exactly can't this be entirely common code , but a CPU-specific
code ? :)

Best regards,
Marek Vasut