Messages in this thread Patch in this message | | | From | Guennadi Liakhovetski <> | Subject | [PATCH v2 13/15] ARM: shmobile: r8a73a4: add a DT node and a clock alias for the DMAC | Date | Fri, 19 Jul 2013 22:22:54 +0200 |
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Add a DT node for the only system DMAC instance on r8a73a4. The RT DMAC can be added later under the same multiplexer, because they can serve the same slaves and use the same MID-RID values. Configuration data is supplied to the driver, using a compatibility match string.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> --- arch/arm/boot/dts/r8a73a4.dtsi | 43 ++++++++++++++++++++++++++++++++ arch/arm/mach-shmobile/clock-r8a73a4.c | 1 + 2 files changed, 44 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/r8a73a4.dtsi b/arch/arm/boot/dts/r8a73a4.dtsi index 47bf326..2f1bec8 100644 --- a/arch/arm/boot/dts/r8a73a4.dtsi +++ b/arch/arm/boot/dts/r8a73a4.dtsi @@ -78,6 +78,49 @@ <0 56 4>, <0 57 4>; }; + dmac: dma-multiplexer@0 { + compatible = "renesas,shdma-mux"; + #dma-cells = <1>; + dma-channels = <20>; + dma-requests = <256>; + #address-cells = <2>; + #size-cells = <2>; + ranges; + + dma0: dma-controller@e6700020 { + compatible = "renesas,shdma-r8a73a4"; + reg = <0 0xe6700020 0 0x89e0>; + interrupt-parent = <&gic>; + interrupts = <0 220 4 + 0 200 4 + 0 201 4 + 0 202 4 + 0 203 4 + 0 204 4 + 0 205 4 + 0 206 4 + 0 207 4 + 0 208 4 + 0 209 4 + 0 210 4 + 0 211 4 + 0 212 4 + 0 213 4 + 0 214 4 + 0 215 4 + 0 216 4 + 0 217 4 + 0 218 4 + 0 219 4>; + interrupt-names = "error", + "ch0", "ch1", "ch2", "ch3", + "ch4", "ch5", "ch6", "ch7", + "ch8", "ch9", "ch10", "ch11", + "ch12", "ch13", "ch14", "ch15", + "ch16", "ch17", "ch18", "ch19"; + }; + }; + thermal@e61f0000 { compatible = "renesas,rcar-thermal"; reg = <0 0xe61f0000 0 0x14>, <0 0xe61f0100 0 0x38>, diff --git a/arch/arm/mach-shmobile/clock-r8a73a4.c b/arch/arm/mach-shmobile/clock-r8a73a4.c index cd62b11..7d6d2a3 100644 --- a/arch/arm/mach-shmobile/clock-r8a73a4.c +++ b/arch/arm/mach-shmobile/clock-r8a73a4.c @@ -580,6 +580,7 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP216]), CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP217]), CLKDEV_DEV_ID("shdma-r8a73a4.0", &mstp_clks[MSTP218]), + CLKDEV_DEV_ID("e6700020.dma-controller", &mstp_clks[MSTP218]), CLKDEV_DEV_ID("rcar_thermal", &mstp_clks[MSTP522]), CLKDEV_DEV_ID("e6520000.i2c", &mstp_clks[MSTP300]), CLKDEV_DEV_ID("sh_mmcif.1", &mstp_clks[MSTP305]), -- 1.7.2.5
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