tree 4ba9398d761abbb95abe1e8115477a9c7cb9ee43
parent 77636dfb78d1fa9af8cf38a03f30be93d35050fa
author Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com> 1660899670 +0800
committer Tom Rini <trini@konsulko.com> 1663085321 -0400

spi: aspeed: SPI dirmap read support

From the HW point of view, the performance of
command read mode is greater than user mode slightly.
Thus, dirmap read framework is introduced to achieve
this goal. In dirmap_create, command read mode is
configured. Usually, the decoded address area with flash
size is assigned to each CS. CPU can thus access the
SPI flash as normal memory in dirmap_read function.

Signed-off-by: Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com>