On 10/17/2015 06:56 AM, Marek Vasut wrote:
But nios2 cpu with 4 bytes
dcache line size does not support this instruction. So we don't
implement the invalidate_dcache_range/all() in u-boot yet.
Where did you find this information ?
Please find it on the foot note of table 7, page 8 of "Nios II Core
Implementation Detail" manual,
The 4-byte line data cache implementation substitutes the flushd
instruction for the flushda
instruction and triggers an unimplemented instruction exception for the
initda instruction. The
16-byte and 32-byte line data cache implementations fully support the
flushda and initda
instructions.
Best regards,
Thomas
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