Messages in this thread Patch in this message | | | From | Guennadi Liakhovetski <> | Subject | [PATCH v4 12/15] ARM: shmobile: r8a7740: add DT nodes and clock aliases for three DMAC instances | Date | Tue, 23 Jul 2013 12:50:06 +0200 |
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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+renesas@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 e18a195..4797f1e 100644 --- a/arch/arm/boot/dts/r8a7740.dtsi +++ b/arch/arm/boot/dts/r8a7740.dtsi @@ -116,6 +116,67 @@ 0 149 0x4>; }; + dmac: dma-multiplexer@0 { + compatible = "renesas,shdma-mux"; + #dma-cells = <1>; + dma-channels = <6>; + dma-requests = <256>; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + dma0: dma-controller@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: dma-controller@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: dma-controller@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 f32a22d..b355018 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.dma-controller",&mstp_clks[MSTP216]), CLKDEV_DEV_ID("shdma-r8a7740.1", &mstp_clks[MSTP217]), + CLKDEV_DEV_ID("fe018020.dma-controller",&mstp_clks[MSTP217]), CLKDEV_DEV_ID("shdma-r8a7740.0", &mstp_clks[MSTP218]), + CLKDEV_DEV_ID("fe008020.dma-controller",&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
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