Hi Biju,
On Mon, Apr 17, 2023 at 11:02 AM Biju Das <biju.das.jz@xxxxxxxxxxxxxx> wrote:
> Enable mtu3 node using dt overlay and disable scif2 node and delete
> {sd1_mux,sd1_mux_uhs} nodes as the pins are shared with mtu3 external
> clock input pins and Z phase signal(MTIOC1A).
>
> Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/renesas/Makefile | 2 +
> .../boot/dts/renesas/rzg2l-smarc-pmod.dtso | 43 +++++++++++++++++++
> 2 files changed, 45 insertions(+)
> create mode 100644 arch/arm64/boot/dts/renesas/rzg2l-smarc-pmod.dtso
>
> diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
> index f130165577a8..57727bcd1334 100644
> --- a/arch/arm64/boot/dts/renesas/Makefile
> +++ b/arch/arm64/boot/dts/renesas/Makefile
> @@ -81,8 +81,10 @@ dtb-$(CONFIG_ARCH_R9A07G043) += r9a07g043-smarc-pmod.dtbo
> dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044c2-smarc.dtb
> dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-smarc.dtb
> dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-smarc-cru-csi-ov5645.dtbo
> +dtb-$(CONFIG_ARCH_R9A07G044) += rzg2l-smarc-pmod.dtbo
>
> dtb-$(CONFIG_ARCH_R9A07G054) += r9a07g054l2-smarc.dtb
> +dtb-$(CONFIG_ARCH_R9A07G054) += rzg2l-smarc-pmod.dtbo
>
> dtb-$(CONFIG_ARCH_R9A09G011) += r9a09g011-v2mevk2.dtb
>
> diff --git a/arch/arm64/boot/dts/renesas/rzg2l-smarc-pmod.dtso b/arch/arm64/boot/dts/renesas/rzg2l-smarc-pmod.dtso
> new file mode 100644
> index 000000000000..a502faf6e1ad
> --- /dev/null
> +++ b/arch/arm64/boot/dts/renesas/rzg2l-smarc-pmod.dtso
> @@ -0,0 +1,43 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Device Tree Source for the RZ/{G2L,V2L} SMARC EVK PMOD parts
> + *
> + * Copyright (C) 2023 Renesas Electronics Corp.
> + */
> +
> +/dts-v1/;
> +/plugin/;
> +
> +#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
> +
> +&mtu3 {
> + pinctrl-0 = <&mtu3_pins>;
> + pinctrl-names = "default";
> +
> + status = "okay";
> +};
> +
> +&pinctrl {
> + mtu3_pins: mtu3 {
> + mtu3-zphase-clk {
> + pinmux = <RZG2L_PORT_PINMUX(19, 0, 3)>; /* MTIOC1A */
> + };
> +
> + mtu3-ext-clk-input-pin {
> + pinmux = <RZG2L_PORT_PINMUX(48, 0, 4)>, /* MTCLKA */
> + <RZG2L_PORT_PINMUX(48, 1, 4)>; /* MTCLKB */
> + };
> + };
> +};
> +
> +&scif2 {
> + status = "disabled";
> +};
> +
> +&sdhi1_pins {
> + /delete-node/ sd1_mux;
> +};
> +
> +&sdhi1_pins_uhs {
> + /delete-node/ sd1_mux_uhs;
> +};
I'm afraid deleting nodes in the base DT from an overlay does not work...
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
