tree e9f727d7773d2a63ed2cf1b1ba0d7052b8866b68
parent 518ed1e64adec1eea62140bf2daa3ce5549a59d3
author Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com> 1583598779 +0100
committer Peng Fan <peng.fan@nxp.com> 1587435135 +0800

mmc: tmio: sdhi: Add DMA transfer address alignment check at writing

In R-Car Gen 3, there is a DMA controller restriction of SDHI.
When the transfer exceeding the 4 kByte boundary is performed while
the DRAM address is not 128 byte aligned, the bus is occupied.
This patch avoids this.

Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>