Hi Sergei,
On Tue, Sep 12, 2017 at 10:37 PM, Sergei Shtylyov
<sergei.shtylyov@xxxxxxxxxxxxxxxxxx> wrote:
> Describe [H]SCIF ports in the R8A77970 device tree.
>
> Based on the original (and large) patch by Daisuke Matsushita
> <daisuke.matsushita.ns@xxxxxxxxxxx>.
>
> Signed-off-by: Vladimir Barinov <vladimir.barinov@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
> --- 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@xxxxxxxxxxxxxx
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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