[U-Boot] [PATCH 4/6] davinci_emac: fix for running with dcache enabled
Ilya Yanok
yanok at emcraft.com
Sun Oct 9 12:41:47 CEST 2011
Hi Mike,
On 07.10.2011 21:34, Mike Frysinger wrote:
>> +#ifdef DAVINCI_EMAC_DCACHE
>> +static inline void davinci_flush(void *addr, int size)
>> +{
>> + flush_dcache_range((unsigned long)addr,
>> + (unsigned long)addr + size);
>> +}
>> +
>> +static inline void davinci_invalidate(void *addr, int size)
>> +{
>> + invalidate_dcache_range((unsigned long)addr,
>> + (unsigned long)addr + size);
>> +}
>> +#else
>> +#define davinci_flush(addr, size) do {} while (0)
>> +#define davinci_invalidate(addr, size) do {} while (0)
>> +#endif
>
> does it really make sense to have this be conditional ?
arm926ejs doesn't have {invalidate,flush}_dcache_range(), so we have to
add this not to break the driver on DaVinci boards (maybe we need to add
empty cache functions on arm926ejs instead?)
Regards, Ilya.
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