[U-Boot] [PATCH] pxa: Disable dcache on palmld, palmtc, zipitz2

[Marek Vasut <marex@denx.de>]

Dear Simon Glass,

> These platforms don't include dcache support. Define CONFIG_SYS_DCACHE_OFF
> so that functions don't try to call non-existent routines like
> flush_dcache_range().
> 
> Signed-off-by: Simon Glass <sjg@chromium.org>

Is that needed? Why not fix PXA by defining stub cache routines ?

> ---
>  include/configs/palmld.h  |    3 +++
>  include/configs/palmtc.h  |    3 +++
>  include/configs/zipitz2.h |    3 +++
>  3 files changed, 9 insertions(+), 0 deletions(-)
> 
> diff --git a/include/configs/palmld.h b/include/configs/palmld.h
> index c5dd494..3f9802c 100644
> --- a/include/configs/palmld.h
> +++ b/include/configs/palmld.h
> @@ -28,6 +28,9 @@
>  #define	CONFIG_CPU_PXA27X		1	/* Marvell PXA270 CPU */
>  #define	CONFIG_PALMLD		1	/* Palm LifeDrive board */
> 
> +/* we will never enable dcache, because we have to setup MMU first */
> +#define CONFIG_SYS_DCACHE_OFF
> +
>  /*
>   * Environment settings
>   */
> diff --git a/include/configs/palmtc.h b/include/configs/palmtc.h
> index 9c948c5..64771e7 100644
> --- a/include/configs/palmtc.h
> +++ b/include/configs/palmtc.h
> @@ -30,6 +30,9 @@
>  #define	CONFIG_CPU_PXA25X			1	/* Intel PXA255 
CPU */
>  #define	CONFIG_PALMTC			1	/* Palm Tungsten|C board 
*/
> 
> +/* we will never enable dcache, because we have to setup MMU first */
> +#define CONFIG_SYS_DCACHE_OFF
> +
>  /*
>   * Environment settings
>   */
> diff --git a/include/configs/zipitz2.h b/include/configs/zipitz2.h
> index bf6394a..b92f70b 100644
> --- a/include/configs/zipitz2.h
> +++ b/include/configs/zipitz2.h
> @@ -41,6 +41,9 @@
>  #define CONFIG_ENV_ADDR			0x40000
>  #define CONFIG_ENV_SIZE			0x20000
> 
> +/* we will never enable dcache, because we have to setup MMU first */
> +#define CONFIG_SYS_DCACHE_OFF
> +
>  #define	CONFIG_SYS_MALLOC_LEN		(128*1024)
>  #define	CONFIG_ARCH_CPU_INIT

Best regards,
Marek Vasut