[U-Boot] [PATCH] pxa: Disable dcache on palmld, palmtc, zipitz2
Marek Vasut
marex at denx.de
Wed Oct 31 12:55:51 CET 2012
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 at 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
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