Hi Shawn, On 2016年08月05日 10:53, Shawn Lin wrote:
Currently pl330 use single mode defaultly. But burst mode can improve efficiency of memory accessing. We couldn't enable it by defalut in case of breaking any Socs which don't support it. With burst mode supported, we could see the improvement significantly when tesing SPI transfer etc. default single mode [ 88.292550] spi write 65536*1 cost 32402us speed:2022KB/S After applied with burst mode(len 16) [ 17.625296] spi write 65536*1 cost 17830us speed:3675KB/S Cc: Huibin Hong <huibin.hong@xxxxxxxxxxxxxx> Cc: Xing Zheng <zhengxing@xxxxxxxxxxxxxx> Signed-off-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx> ---
Tested-by: Xing Zheng <zhengxing@xxxxxxxxxxxxxx> Thanks -- - Xing Zheng -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
