* [PATCH 07/11] arm64: dts: renesas: r8a77970: add [H]SCIF support
@ 2017-09-12 20:37 Sergei Shtylyov
2017-09-13 14:05 ` Geert Uytterhoeven
0 siblings, 1 reply; 2+ messages in thread
From: Sergei Shtylyov @ 2017-09-12 20:37 UTC (permalink / raw)
To: Rob Herring, Simon Horman, Mark Rutland, Catalin Marinas,
Will Deacon, linux-renesas-soc, devicetree
Cc: Magnus Damm, linux-arm-kernel, Vladimir Barinov, Sergei Shtylyov
[-- Attachment #1: arm64-dts-renesas-r8a77970-add-H-SCIF-support.patch --]
[-- Type: text/plain, Size: 5171 bytes --]
Describe [H]SCIF ports in the R8A77970 device tree.
Based on the original (and large) patch by Daisuke Matsushita
<daisuke.matsushita.ns@hitachi.com>.
Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
---
arch/arm64/boot/dts/renesas/r8a77970.dtsi | 141 ++++++++++++++++++++++++++++++
1 file changed, 141 insertions(+)
Index: renesas/arch/arm64/boot/dts/renesas/r8a77970.dtsi
===================================================================
--- renesas.orig/arch/arm64/boot/dts/renesas/r8a77970.dtsi
+++ renesas/arch/arm64/boot/dts/renesas/r8a77970.dtsi
@@ -60,6 +60,13 @@
clock-frequency = <0>;
};
+ /* External SCIF clock - to be overridden by boards that provide it */
+ scif_clk: scif {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <0>;
+ };
+
soc {
compatible = "simple-bus";
interrupt-parent = <&gic>;
@@ -170,5 +177,139 @@
#dma-cells = <1>;
dma-channels = <8>;
};
+
+ hscif0: serial@e6540000 {
+ compatible = "renesas,hscif-r8a77970",
+ "renesas,rcar-gen3-hscif",
+ "renesas,hscif";
+ reg = <0 0xe6540000 0 96>;
+ interrupts = <GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 520>,
+ <&cpg CPG_CORE 9>,
+ <&scif_clk>;
+ clock-names = "fck", "brg_int", "scif_clk";
+ dmas = <&dmac1 0x31>, <&dmac1 0x30>;
+ dma-names = "tx", "rx";
+ power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+ resets = <&cpg 520>;
+ status = "disabled";
+ };
+
+ hscif1: serial@e6550000 {
+ compatible = "renesas,hscif-r8a77970",
+ "renesas,rcar-gen3-hscif",
+ "renesas,hscif";
+ reg = <0 0xe6550000 0 96>;
+ interrupts = <GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 519>,
+ <&cpg CPG_CORE 9>,
+ <&scif_clk>;
+ clock-names = "fck", "brg_int", "scif_clk";
+ dmas = <&dmac1 0x33>, <&dmac1 0x32>;
+ dma-names = "tx", "rx";
+ power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+ resets = <&cpg 519>;
+ status = "disabled";
+ };
+
+ hscif2: serial@e6560000 {
+ compatible = "renesas,hscif-r8a77970",
+ "renesas,rcar-gen3-hscif",
+ "renesas,hscif";
+ reg = <0 0xe6560000 0 96>;
+ interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 518>,
+ <&cpg CPG_CORE 9>,
+ <&scif_clk>;
+ clock-names = "fck", "brg_int", "scif_clk";
+ dmas = <&dmac1 0x35>, <&dmac1 0x34>;
+ dma-names = "tx", "rx";
+ power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+ resets = <&cpg 518>;
+ status = "disabled";
+ };
+
+ hscif3: serial@e66a0000 {
+ compatible = "renesas,hscif-r8a77970",
+ "renesas,rcar-gen3-hscif", "renesas,hscif";
+ reg = <0 0xe66a0000 0 96>;
+ interrupts = <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 517>,
+ <&cpg CPG_CORE 9>,
+ <&scif_clk>;
+ clock-names = "fck", "brg_int", "scif_clk";
+ dmas = <&dmac1 0x37>, <&dmac1 0x36>;
+ dma-names = "tx", "rx";
+ power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+ resets = <&cpg 517>;
+ status = "disabled";
+ };
+
+ scif0: serial@e6e60000 {
+ compatible = "renesas,scif-r8a77970",
+ "renesas,rcar-gen3-scif",
+ "renesas,scif";
+ reg = <0 0xe6e60000 0 64>;
+ interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 207>,
+ <&cpg CPG_CORE 9>,
+ <&scif_clk>;
+ clock-names = "fck", "brg_int", "scif_clk";
+ dmas = <&dmac1 0x51>, <&dmac1 0x50>;
+ dma-names = "tx", "rx";
+ power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+ resets = <&cpg 207>;
+ status = "disabled";
+ };
+
+ scif1: serial@e6e68000 {
+ compatible = "renesas,scif-r8a77970",
+ "renesas,rcar-gen3-scif",
+ "renesas,scif";
+ reg = <0 0xe6e68000 0 64>;
+ interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 206>,
+ <&cpg CPG_CORE 9>,
+ <&scif_clk>;
+ clock-names = "fck", "brg_int", "scif_clk";
+ dmas = <&dmac1 0x53>, <&dmac1 0x52>;
+ dma-names = "tx", "rx";
+ power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+ resets = <&cpg 206>;
+ status = "disabled";
+ };
+
+ scif3: serial@e6c50000 {
+ compatible = "renesas,scif-r8a77970",
+ "renesas,rcar-gen3-scif",
+ "renesas,scif";
+ reg = <0 0xe6c50000 0 64>;
+ interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 204>,
+ <&cpg CPG_CORE 9>,
+ <&scif_clk>;
+ clock-names = "fck", "brg_int", "scif_clk";
+ dmas = <&dmac1 0x57>, <&dmac1 0x56>;
+ dma-names = "tx", "rx";
+ power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+ resets = <&cpg 204>;
+ status = "disabled";
+ };
+
+ scif4: serial@e6c40000 {
+ compatible = "renesas,scif-r8a77970",
+ "renesas,rcar-gen3-scif", "renesas,scif";
+ reg = <0 0xe6c40000 0 64>;
+ interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 203>,
+ <&cpg CPG_CORE 9>,
+ <&scif_clk>;
+ clock-names = "fck", "brg_int", "scif_clk";
+ dmas = <&dmac1 0x59>, <&dmac1 0x58>;
+ dma-names = "tx", "rx";
+ power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+ resets = <&cpg 203>;
+ status = "disabled";
+ };
};
};
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH 07/11] arm64: dts: renesas: r8a77970: add [H]SCIF support
2017-09-12 20:37 [PATCH 07/11] arm64: dts: renesas: r8a77970: add [H]SCIF support Sergei Shtylyov
@ 2017-09-13 14:05 ` Geert Uytterhoeven
0 siblings, 0 replies; 2+ messages in thread
From: Geert Uytterhoeven @ 2017-09-13 14:05 UTC (permalink / raw)
To: Sergei Shtylyov
Cc: Rob Herring, Simon Horman, Mark Rutland, Catalin Marinas,
Will Deacon, Linux-Renesas, devicetree@vger.kernel.org,
Magnus Damm, linux-arm-kernel@lists.infradead.org,
Vladimir Barinov
Hi Sergei,
On Tue, Sep 12, 2017 at 10:37 PM, Sergei Shtylyov
<sergei.shtylyov@cogentembedded.com> wrote:
> Describe [H]SCIF ports in the R8A77970 device tree.
>
> Based on the original (and large) patch by Daisuke Matsushita
> <daisuke.matsushita.ns@hitachi.com>.
>
> Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> --- renesas.orig/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> +++ renesas/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> @@ -170,5 +177,139 @@
> #dma-cells = <1>;
> dma-channels = <8>;
> };
> +
> + hscif0: serial@e6540000 {
> + compatible = "renesas,hscif-r8a77970",
> + "renesas,rcar-gen3-hscif",
> + "renesas,hscif";
> + reg = <0 0xe6540000 0 96>;
> + interrupts = <GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&cpg CPG_MOD 520>,
> + <&cpg CPG_CORE 9>,
> + <&scif_clk>;
> + clock-names = "fck", "brg_int", "scif_clk";
> + dmas = <&dmac1 0x31>, <&dmac1 0x30>;
> + dma-names = "tx", "rx";
The DMA channel numbers in Table 17.5 in the datasheet are a bit messed up
(it doesn't take into account that each V3M DMAC has only 8 channels,
while they have
16 on H3 and M3-W), but it looks like HSCIF[0-3] and SCIF[0134] can use both
dmac1 and dmac2.
So please add these (preferably after verifying the above is true).
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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2017-09-13 14:05 ` Geert Uytterhoeven
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