[U-Boot] [PATCH v2] nios2: set default cache configuration in start.S

Thomas Chou thomas at wytron.com.tw
Tue Oct 13 15:20:18 CEST 2015



On 10/09/2015 08:11 PM, Thomas Chou wrote:
> Set default icache and dcache configuration for start.S.
>
> We want to remove the CONFIG_SYS_{I,D}CACHE_SIZE...
> configuration macros. As we are just barely starting from
> reset, there is no luxury of device tree.
>
> We will set some maximum cache configuration so that it will
> work for most configurations. This is used only in this
> start.S. The speed penalty is only once here.
>
> After start up, during board initialization, cpu information
> will be extracted from device tree. Then cache flush operations
> will have correct cache configurations.
>
> Signed-off-by: Thomas Chou <thomas at wytron.com.tw>
> ---
> v2
>    change commit message.
>
>   arch/nios2/cpu/start.S | 22 +++++++++++++++-------
>   1 file changed, 15 insertions(+), 7 deletions(-)
>

Applied to u-boot-nios.



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