arm64: Mark the Applied Micro X-Gene SATA controller as DMA coherent

Since the default DMA ops for arm64 are non-coherent, mark the X-Gene controller explicitly as dma-coherent to avoid additional cache maintenance.

Catalin Marinas committed 12 years ago

Commit 7a8d1ec1 parent 6ecba8e2 files · +6 −0Browse files

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2 files

@@ -24,6 +24,7 @@ Required properties: · 23 unmodified lines
24	24	* "sata-phy" for the SATA 6.0Gbps PHY
25	25
26	26	Optional properties:
	27	+- dma-coherent : Present if dma operations are coherent
27	28	- status : Shall be "ok" if enabled or "disabled" if disabled.
28	29	Default is "ok".
29	30
@@ -55,6 +56,7 @@ Example: · 25 unmodified lines
55	56	<0x0 0x1f22e000 0x0 0x1000>,
56	57	<0x0 0x1f227000 0x0 0x1000>;
57	58	interrupts = <0x0 0x87 0x4>;
	59	+ dma-coherent;
58	60	status = "ok";
59	61	clocks = <&sataclk 0>;
60	62	phys = <&phy2 0>;
@@ -69,6 +71,7 @@ Example: · 8 unmodified lines
69	71	<0x0 0x1f23e000 0x0 0x1000>,
70	72	<0x0 0x1f237000 0x0 0x1000>;
71	73	interrupts = <0x0 0x88 0x4>;
	74	+ dma-coherent;
72	75	status = "ok";
73	76	clocks = <&sataclk 0>;
74	77	phys = <&phy3 0>;

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