[PATCH v2 2/3] arm64: dts: Add APM X-Gene DMA device and DMA clock DTS nodes

Rameshwar Prasad Sahu
2015-01-07T11:09:40Z

This patch adds the device tree node for APM X-Gene SoC
DMA controller and DMA clock.

Signed-off-by: Rameshwar Prasad Sahu <rsahu@apm.com>
Signed-off-by: Loc Ho <lho@apm.com>
---
arch/arm64/boot/dts/apm/apm-storm.dtsi | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)

diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi b/arch/arm64/boot/dts/apm/apm-storm.dtsi
index f1ad9c2..95b30c2 100644
--- a/arch/arm64/boot/dts/apm/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi
@@ -352,6 +352,15 @@
reg-names = "csr-reg";
clock-output-names = "pcie4clk";
};
+
+ dmaclk: dmaclk at 1f27c000 {
+ compatible = "apm,xgene-device-clock";
+ #clock-cells = <1>;
+ clocks = <&socplldiv2 0>;
+ reg = <0x0 0x1f27c000 0x0 0x1000>;
+ reg-names = "csr-reg";
+ clock-output-names = "dmaclk";
+ };
};

pcie0: pcie at 1f2b0000 {
@@ -656,5 +665,21 @@
interrupts = <0x0 0x41 0x4>;
clocks = <&rngpkaclk 0>;
};
+
+ dma: dma at 1f270000 {
+ compatible = "apm,xgene-dma";
+ device_type = "dma";
+ reg = <0x0 0x1f270000 0x0 0x10000>,
+ <0x0 0x1f200000 0x0 0x10000>,
+ <0x0 0x1b008000 0x0 0x2000>;
+ reg-names = "dma_csr", "ring_csr", "ring_cmd";
+ interrupts = <0x0 0x82 0x4>,
+ <0x0 0xb8 0x4>,
+ <0x0 0xb9 0x4>,
+ <0x0 0xba 0x4>,
+ <0x0 0xbb 0x4>;
+ dma-coherent;
+ clocks = <&dmaclk 0>;
+ };
};
};
--
1.8.2.1