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Groups > linux.kernel > #1352577
| From | Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v5 9/9] ARM: dts: r8a7791: add iommus to dmac0 and dmac1 |
| Date | 2016-03-08 03:50 +0100 |
| Message-ID | <rafSG-34S-23@gated-at.bofh.it> (permalink) |
| References | <rafSF-34S-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
A unconfirmed hardware bug prevents channel 0 and 15 to be used by the
DMAC together with the IPMMU. The DMAC driver will disable the channels
reducing the effective number of channels to 14 per DMAC.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
arch/arm/boot/dts/r8a7791.dtsi | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
index c6bee4a..341c460 100644
--- a/arch/arm/boot/dts/r8a7791.dtsi
+++ b/arch/arm/boot/dts/r8a7791.dtsi
@@ -283,6 +283,21 @@
power-domains = <&cpg_clocks>;
#dma-cells = <1>;
dma-channels = <15>;
+ iommus = <&ipmmu_ds 0>,
+ <&ipmmu_ds 1>,
+ <&ipmmu_ds 2>,
+ <&ipmmu_ds 3>,
+ <&ipmmu_ds 4>,
+ <&ipmmu_ds 5>,
+ <&ipmmu_ds 6>,
+ <&ipmmu_ds 7>,
+ <&ipmmu_ds 8>,
+ <&ipmmu_ds 9>,
+ <&ipmmu_ds 10>,
+ <&ipmmu_ds 11>,
+ <&ipmmu_ds 12>,
+ <&ipmmu_ds 13>,
+ <&ipmmu_ds 14>;
};
dmac1: dma-controller@e6720000 {
@@ -314,6 +329,21 @@
power-domains = <&cpg_clocks>;
#dma-cells = <1>;
dma-channels = <15>;
+ iommus = <&ipmmu_ds 15>,
+ <&ipmmu_ds 16>,
+ <&ipmmu_ds 17>,
+ <&ipmmu_ds 18>,
+ <&ipmmu_ds 19>,
+ <&ipmmu_ds 20>,
+ <&ipmmu_ds 21>,
+ <&ipmmu_ds 22>,
+ <&ipmmu_ds 23>,
+ <&ipmmu_ds 24>,
+ <&ipmmu_ds 25>,
+ <&ipmmu_ds 26>,
+ <&ipmmu_ds 27>,
+ <&ipmmu_ds 28>,
+ <&ipmmu_ds 29>;
};
audma0: dma-controller@ec700000 {
--
2.7.2
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[PATCH v5 0/9] dmaengine: rcar-dmac: add iommu support for slave transfers Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> - 2016-03-08 03:50 +0100
[PATCH v5 4/9] arm: dma-mapping: add {map,unmap}_resource for iommu ops Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> - 2016-03-08 03:50 +0100
[PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> - 2016-03-08 03:50 +0100
Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource Christoph Hellwig <hch@infradead.org> - 2016-03-08 08:40 +0100
Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource "Niklas S??derlund" <niklas.soderlund@ragnatech.se> - 2016-03-10 17:10 +0100
Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource Vinod Koul <vinod.koul@intel.com> - 2016-03-11 07:20 +0100
Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource Dan Williams <dan.j.williams@intel.com> - 2016-03-11 07:50 +0100
Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource Christoph Hellwig <hch@infradead.org> - 2016-03-11 12:20 +0100
Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource Niklas Söderlund <niklas.soderlund@ragnatech.se> - 2016-03-11 14:00 +0100
Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource Christoph Hellwig <hch@infradead.org> - 2016-03-15 09:30 +0100
Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource Robin Murphy <robin.murphy@arm.com> - 2016-03-11 14:50 +0100
Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource Dan Williams <dan.j.williams@intel.com> - 2016-03-11 19:00 +0100
[PATCH v5 9/9] ARM: dts: r8a7791: add iommus to dmac0 and dmac1 Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> - 2016-03-08 03:50 +0100
[PATCH v5 1/9] iommu: Add MMIO mapping type Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> - 2016-03-08 03:50 +0100
[PATCH v5 6/9] dmaengine: rcar-dmac: group slave configuration Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> - 2016-03-08 03:50 +0100
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