[PATCH 0/4] iW-RainboW-G21D-Qseven Enable SCIFB2, SDHI2, AVB and RWDT

[PATCH 0/4] iW-RainboW-G21D-Qseven Enable SCIFB2, SDHI2, AVB and RWDT

[Lad Prabhakar]

Hi All,

This patch series enables support for SCIFB2, SDHI2, AVB and
RWDT on iW-RainboW-G21D-Qseven develpoment board.

This patch series is dependent on [1].

[1] https://patchwork.kernel.org/project/linux-renesas-soc/
    list/?series=288491&archive=both&state=*

Cheers,
Prabhakar

Lad Prabhakar (4):
  ARM: dts: r8a7742-iwg21d-q7: Enable scifb2 node
  ARM: dts: r8a7742-iwg21d-q7: Enable SDHI2 controller
  ARM: dts: r8a7742-iwg21d-q7: Enable Ethernet avb
  ARM: dts: r8a7742-iwg21d-q7: Add RWDT support

 arch/arm/boot/dts/r8a7742-iwg21d-q7.dts | 87 +++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)

-- 
2.7.4

[PATCH 1/4] ARM: dts: r8a7742-iwg21d-q7: Enable scifb2 node

[Lad Prabhakar]

Enable scifb2 interface on iWave RZ/G1H carrier board.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
---
 arch/arm/boot/dts/r8a7742-iwg21d-q7.dts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
index 1f5c35c..e154e3a 100644
--- a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
+++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
@@ -14,6 +14,7 @@
 
 	aliases {
 		serial2 = &scifa2;
+		serial4 = &scifb2;
 	};
 
 	chosen {
@@ -27,6 +28,11 @@
 		groups = "scifa2_data_c";
 		function = "scifa2";
 	};
+
+	scifb2_pins: scifb2 {
+		groups = "scifb2_data", "scifb2_ctrl";
+		function = "scifb2";
+	};
 };
 
 &scifa2 {
@@ -35,3 +41,11 @@
 
 	status = "okay";
 };
+
+&scifb2 {
+	pinctrl-0 = <&scifb2_pins>;
+	pinctrl-names = "default";
+
+	uart-has-rtscts;
+	status = "okay";
+};
-- 
2.7.4

[PATCH 2/4] ARM: dts: r8a7742-iwg21d-q7: Enable SDHI2 controller

[Lad Prabhakar]

Enable the SDHI2 controller on iWave RZ/G1H carrier board.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
---
 arch/arm/boot/dts/r8a7742-iwg21d-q7.dts | 47 +++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
index e154e3a..bb1deb0 100644
--- a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
+++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
@@ -21,6 +21,28 @@
 		bootargs = "ignore_loglevel root=/dev/mmcblk0p1 rw rootwait";
 		stdout-path = "serial2:115200n8";
 	};
+
+	vcc_sdhi2: regulator-vcc-sdhi2 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "SDHI2 Vcc";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&gpio1 27 GPIO_ACTIVE_LOW>;
+	};
+
+	vccq_sdhi2: regulator-vccq-sdhi2 {
+		compatible = "regulator-gpio";
+
+		regulator-name = "SDHI2 VccQ";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
+		gpios-states = <1>;
+		states = <3300000 1>, <1800000 0>;
+	};
 };
 
 &pfc {
@@ -33,6 +55,18 @@
 		groups = "scifb2_data", "scifb2_ctrl";
 		function = "scifb2";
 	};
+
+	sdhi2_pins: sd2 {
+		groups = "sdhi2_data4", "sdhi2_ctrl";
+		function = "sdhi2";
+		power-source = <3300>;
+	};
+
+	sdhi2_pins_uhs: sd2_uhs {
+		groups = "sdhi2_data4", "sdhi2_ctrl";
+		function = "sdhi2";
+		power-source = <1800>;
+	};
 };
 
 &scifa2 {
@@ -49,3 +83,16 @@
 	uart-has-rtscts;
 	status = "okay";
 };
+
+&sdhi2 {
+	pinctrl-0 = <&sdhi2_pins>;
+	pinctrl-1 = <&sdhi2_pins_uhs>;
+	pinctrl-names = "default", "state_uhs";
+
+	vmmc-supply = <&vcc_sdhi2>;
+	vqmmc-supply = <&vccq_sdhi2>;
+	cd-gpios = <&gpio3 22 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+	sd-uhs-sdr50;
+	status = "okay";
+};
-- 
2.7.4

[PATCH 3/4] ARM: dts: r8a7742-iwg21d-q7: Enable Ethernet avb

[Lad Prabhakar]

Enable ethernet avb on iWave RZ/G1H carrier board.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
---
 arch/arm/boot/dts/r8a7742-iwg21d-q7.dts | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
index bb1deb0..c57a571 100644
--- a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
+++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
@@ -15,6 +15,7 @@
 	aliases {
 		serial2 = &scifa2;
 		serial4 = &scifb2;
+		ethernet0 = &avb;
 	};
 
 	chosen {
@@ -45,7 +46,27 @@
 	};
 };
 
+&avb {
+	pinctrl-0 = <&avb_pins>;
+	pinctrl-names = "default";
+
+	phy-handle = <&phy3>;
+	phy-mode = "gmii";
+	renesas,no-ether-link;
+	status = "okay";
+
+	phy3: ethernet-phy@3 {
+		reg = <3>;
+		micrel,led-mode = <1>;
+	};
+};
+
 &pfc {
+	avb_pins: avb {
+		groups = "avb_mdio", "avb_gmii";
+		function = "avb";
+	};
+
 	scifa2_pins: scifa2 {
 		groups = "scifa2_data_c";
 		function = "scifa2";
-- 
2.7.4

[PATCH 4/4] ARM: dts: r8a7742-iwg21d-q7: Add RWDT support

[Lad Prabhakar]

Enable RWDT and use 60 seconds as default timeout.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
---
 arch/arm/boot/dts/r8a7742-iwg21d-q7.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
index c57a571..f23c2ba 100644
--- a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
+++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
@@ -90,6 +90,11 @@
 	};
 };
 
+&rwdt {
+	timeout-sec = <60>;
+	status = "okay";
+};
+
 &scifa2 {
 	pinctrl-0 = <&scifa2_pins>;
 	pinctrl-names = "default";
-- 
2.7.4

Re: [PATCH 1/4] ARM: dts: r8a7742-iwg21d-q7: Enable scifb2 node

[Geert Uytterhoeven]

On Mon, May 25, 2020 at 5:23 PM Lad Prabhakar
<prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
> Enable scifb2 interface on iWave RZ/G1H carrier board.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v5.9.

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

Re: [PATCH 2/4] ARM: dts: r8a7742-iwg21d-q7: Enable SDHI2 controller

[Geert Uytterhoeven]

Hi Prabhakar,

On Mon, May 25, 2020 at 5:23 PM Lad Prabhakar
<prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
> Enable the SDHI2 controller on iWave RZ/G1H carrier board.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v5.9.

BTW, perhaps you want to add an LED trigger for SDIO_LED, connected
to GP5_22?

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

Re: [PATCH 3/4] ARM: dts: r8a7742-iwg21d-q7: Enable Ethernet avb

[Geert Uytterhoeven]

On Mon, May 25, 2020 at 5:23 PM Lad Prabhakar
<prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
> Enable ethernet avb on iWave RZ/G1H carrier board.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v5.9.

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

Re: [PATCH 4/4] ARM: dts: r8a7742-iwg21d-q7: Add RWDT support

[Geert Uytterhoeven]

On Mon, May 25, 2020 at 5:23 PM Lad Prabhakar
<prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
> Enable RWDT and use 60 seconds as default timeout.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v5.9.

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

Re: [PATCH 2/4] ARM: dts: r8a7742-iwg21d-q7: Enable SDHI2 controller

[Lad, Prabhakar]

Hi Geert,

On Tue, May 26, 2020 at 8:58 AM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>
> Hi Prabhakar,
>
> On Mon, May 25, 2020 at 5:23 PM Lad Prabhakar
> <prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
> > Enable the SDHI2 controller on iWave RZ/G1H carrier board.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
> i.e. will queue in renesas-devel for v5.9.
>
Thank you for the review.

> BTW, perhaps you want to add an LED trigger for SDIO_LED, connected
> to GP5_22?
>
Sure I'll add this as a separate patch.

Cheers,
--Prabhakar

> 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