Commit Graph

2 Commits

Author SHA1 Message Date
Svatopluk Kraus
ec950d0aef Do not use DMA channels used by GPU.
(1) The channel mask is get from "brcm,dma-channel-mask" property of
    dma node, and if not provided, from "broadcom,channels" property.
(2) Consequently, sdhci driver does not allocate any specific channel.
(3) Use CS_RESET bit for initial channel reset.

Differential Revision:    https://reviews.freebsd.org/D4303
2016-02-16 12:19:06 +00:00
Oleksandr Tymoshenko
cdafe74e84 Add driver for BCM2835's DMA engine
This is a version of code submitted by Daisuke Aoyama <aoyama at peach.ne.jp>
with some architectural changes.
2013-02-28 19:48:19 +00:00