This patch adds Device Tree support for the three generic DMA controller
instances on r8a7740 in a DMA multiplexer node.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+rene...@gmail.com>
---
arch/arm/boot/dts/r8a7740.dtsi | 61 ++++++++++++++++++++++++++++++++
arch/arm/mach-shmobile/clock-r8a7740.c | 3 ++
2 files changed, 64 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/r8a7740.dtsi b/arch/arm/boot/dts/r8a7740.dtsi
index 25dc930..39b596f 100644
--- a/arch/arm/boot/dts/r8a7740.dtsi
+++ b/arch/arm/boot/dts/r8a7740.dtsi
@@ -112,6 +112,67 @@
0 149 0x4>;
};
+ dmac: dma-mux0 {
+ compatible = "renesas,shdma-mux";
+ #dma-cells = <1>;
+ dma-channels = <6>;
+ dma-requests = <256>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ dma0: shdma@fe008020 {
+ compatible = "renesas,shdma-r8a7740";
+ reg = <0xfe008020 0x270>,
+ <0xfe009000 0xc>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 34 4
+ 0 28 4
+ 0 29 4
+ 0 30 4
+ 0 31 4
+ 0 32 4
+ 0 33 4>;
+ interrupt-names = "error",
+ "ch0", "ch1", "ch2", "ch3",
+ "ch4", "ch5";
+ };
+
+ dma1: shdma@fe018020 {
+ compatible = "renesas,shdma-r8a7740";
+ reg = <0xfe018020 0x270>,
+ <0xfe019000 0xc>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 41 4
+ 0 35 4
+ 0 36 4
+ 0 37 4
+ 0 38 4
+ 0 39 4
+ 0 40 4>;
+ interrupt-names = "error",
+ "ch0", "ch1", "ch2", "ch3",
+ "ch4", "ch5";
+ };
+
+ dma2: shdma@fe028020 {
+ compatible = "renesas,shdma-r8a7740";
+ reg = <0xfe028020 0x270>,
+ <0xfe029000 0xc>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 48 4
+ 0 42 4
+ 0 43 4
+ 0 44 4
+ 0 45 4
+ 0 46 4
+ 0 47 4>;
+ interrupt-names = "error",
+ "ch0", "ch1", "ch2", "ch3",
+ "ch4", "ch5";
+ };
+ };
+
i2c0: i2c@fff20000 {
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/arm/mach-shmobile/clock-r8a7740.c
b/arch/arm/mach-shmobile/clock-r8a7740.c
index 0abe58a..38ce209 100644
--- a/arch/arm/mach-shmobile/clock-r8a7740.c
+++ b/arch/arm/mach-shmobile/clock-r8a7740.c
@@ -576,8 +576,11 @@ static struct clk_lookup lookups[] = {
CLKDEV_DEV_ID("e6cb0000.sci", &mstp_clks[MSTP207]),
CLKDEV_DEV_ID("sh-dma-engine.3", &mstp_clks[MSTP214]),
CLKDEV_DEV_ID("shdma-r8a7740.2", &mstp_clks[MSTP216]),
+ CLKDEV_DEV_ID("fe028020.shdma", &mstp_clks[MSTP216]),
CLKDEV_DEV_ID("shdma-r8a7740.1", &mstp_clks[MSTP217]),
+ CLKDEV_DEV_ID("fe018020.shdma", &mstp_clks[MSTP217]),
CLKDEV_DEV_ID("shdma-r8a7740.0", &mstp_clks[MSTP218]),
+ CLKDEV_DEV_ID("fe008020.shdma", &mstp_clks[MSTP218]),
CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP222]),
CLKDEV_DEV_ID("e6cd0000.sci", &mstp_clks[MSTP222]),
CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP230]),
--
1.7.2.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
