Enable the SDHI2 controller on iWave RZ/G1H carrier board.
Signed-off-by: Lad Prabhakar <[email protected]>
Reviewed-by: Marian-Cristian Rotariu <[email protected]>
---
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
Hi Geert,
On Tue, May 26, 2020 at 8:58 AM Geert Uytterhoeven <[email protected]> wrote:
>
> Hi Prabhakar,
>
> On Mon, May 25, 2020 at 5:23 PM Lad Prabhakar
> <[email protected]> wrote:
> > Enable the SDHI2 controller on iWave RZ/G1H carrier board.
> >
> > Signed-off-by: Lad Prabhakar <[email protected]>
> > Reviewed-by: Marian-Cristian Rotariu <[email protected]>
>
> Reviewed-by: Geert Uytterhoeven <[email protected]>
> 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 -- [email protected]
>
> 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
Hi Prabhakar,
On Mon, May 25, 2020 at 5:23 PM Lad Prabhakar
<[email protected]> wrote:
> Enable the SDHI2 controller on iWave RZ/G1H carrier board.
>
> Signed-off-by: Lad Prabhakar <[email protected]>
> Reviewed-by: Marian-Cristian Rotariu <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
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 -- [email protected]
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