diff options
| author | Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> | 2018-07-30 19:26:33 +0300 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2018-08-31 22:47:26 +0300 |
| commit | 678c8110d23c0ac7d69fda558992c31be64e7507 (patch) | |
| tree | c88b63785213dcbb411be548dac42d4c22dfc70e /arch/arc/boot/dts/axc003.dtsi | |
| parent | 3fcbb8260a87efb691d837e8cd24e81f65b3eb70 (diff) | |
| download | linux-678c8110d23c0ac7d69fda558992c31be64e7507.tar.xz | |
ARC: dma [IOC]: mark DMA devices connected as dma-coherent
Mark DMA devices on AXS103 and HSDK boards connected through IOC
port as dma-coherent.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/boot/dts/axc003.dtsi')
| -rw-r--r-- | arch/arc/boot/dts/axc003.dtsi | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi index dc91c663bcc0..d75d65ddf8e3 100644 --- a/arch/arc/boot/dts/axc003.dtsi +++ b/arch/arc/boot/dts/axc003.dtsi @@ -94,6 +94,32 @@ }; /* + * Mark DMA peripherals connected via IOC port as dma-coherent. We do + * it via overlay because peripherals defined in axs10x_mb.dtsi are + * used for both AXS101 and AXS103 boards and only AXS103 has IOC (so + * only AXS103 board has HW-coherent DMA peripherals) + * We don't need to mark pgu@17000 as dma-coherent because it uses + * external DMA buffer located outside of IOC aperture. + */ + axs10x_mb { + ethernet@0x18000 { + dma-coherent; + }; + + ehci@0x40000 { + dma-coherent; + }; + + ohci@0x60000 { + dma-coherent; + }; + + mmc@0x15000 { + dma-coherent; + }; + }; + + /* * The DW APB ICTL intc on MB is connected to CPU intc via a * DT "invisible" DW APB GPIO block, configured to simply pass thru * interrupts - setup accordinly in platform init (plat-axs10x/ax10x.c) |