于 2018年3月21日 GMT+08:00 上午2:46:46, Maxime Ripard <maxime.rip...@bootlin.com> 写到: >On Sat, Mar 17, 2018 at 01:53:49AM +0800, Icenowy Zheng wrote: >> All the sub-blocks of Allwinner A64 DE2 needs the SRAM C on A64 SoC >to >> be claimed, otherwise the whole DE2 space is inaccessible. >> >> Add a device tree binding of the DE2 part as a sub-bus. > >Where did you get the info that it was a bus?
There's no direct evidence, just some guess. The DE2 is a whole part that is just allocated a memory space at the user manual, and the SRAM controls the access to all modules in the DE2. So it might be a bus. Implement it as a bus is a clear representation on A64. > >Maxime
