Re: [PATCH v2 3/3] arm64: dts: imx93: Add Engicam i.Core MX93 EDIMM 2.0 Starter Kit

From: Fabio Aiuto
Date: Fri Apr 19 2024 - 07:04:54 EST

Hello Michael,

Il Fri, Apr 19, 2024 at 09:29:12AM +0200, Michael Nazzareno Trimarchi ha scritto:
> Hi Fabio
>
> On Thu, Apr 18, 2024 at 3:43 PM Fabio Aiuto <fabio.aiuto@xxxxxxxxxxx> wrote:
> >
> > i.Core MX93 is a NXP i.MX93 based SoM by Enigcam which
> > needs to be mounted on top of Engicam baseboards.
> >
> > Add support for EDIMM 2.0 Starter Kit hosting
> > i.Core MX93.
> >
> > Starter Kit main features:
> >
> > 2x LVDS interfaces
> > HDMI output
> > Audio out
> > Mic in
> > Micro SD card slot
> > USB 3.0 A port
> > 3x USB 2.0 A port
> > Gb Ethernet
> > 2x CAN bus, 3x UART interfaces
> > SIM card slot
> > M.2 KEY_B slot
> >
> > Cc: Matteo Lisi <matteo.lisi@xxxxxxxxxxx>
> > Cc: Mirko Ardinghi <mirko.ardinghi@xxxxxxxxxxx>
> > Signed-off-by: Fabio Aiuto <fabio.aiuto@xxxxxxxxxxx>
> > ---
> > arch/arm64/boot/dts/freescale/Makefile | 1 +
> > .../dts/freescale/imx93-icore-mx93-edimm2.dts | 354 ++++++++++++++++++
> > 2 files changed, 355 insertions(+)
> > create mode 100644 arch/arm64/boot/dts/freescale/imx93-icore-mx93-edimm2.dts
> >
> > diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
> > index 045250d0a040..d26c0a458a44 100644
> > --- a/arch/arm64/boot/dts/freescale/Makefile
> > +++ b/arch/arm64/boot/dts/freescale/Makefile
> > @@ -226,6 +226,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8qxp-mek.dtb
> > dtb-$(CONFIG_ARCH_MXC) += imx8qxp-tqma8xqp-mba8xx.dtb
> > dtb-$(CONFIG_ARCH_MXC) += imx8ulp-evk.dtb
> > dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-evk.dtb
> > +dtb-$(CONFIG_ARCH_MXC) += imx93-icore-mx93-edimm2.dtb
> > dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-segin.dtb
> > dtb-$(CONFIG_ARCH_MXC) += imx93-tqma9352-mba93xxca.dtb
> > dtb-$(CONFIG_ARCH_MXC) += imx93-tqma9352-mba93xxla.dtb
> > diff --git a/arch/arm64/boot/dts/freescale/imx93-icore-mx93-edimm2.dts b/arch/arm64/boot/dts/freescale/imx93-icore-mx93-edimm2.dts
> > new file mode 100644
> > index 000000000000..8d57374eebdf
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/freescale/imx93-icore-mx93-edimm2.dts
> > @@ -0,0 +1,354 @@
> > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> > +/*
> > + * Copyright 2022 NXP
> > + * Copyright 2024 Engicam s.r.l.
> > + */
> > +
> > +/dts-v1/;
> > +
> > +#include "imx93-icore-mx93.dtsi"
> > +
> > +/ {
> > + model = "Engicam i.Core MX93 - EDIMM 2 Starterkit";
> > + compatible = "engicam,icore-mx93-edimm2", "engicam,icore-mx93",
> > + "fsl,imx93";
> > +
> > + aliases {
> > + rtc1 = &bbnsm_rtc;
> > + };
> > +
> > + bt_reg_on: regulator-btregon {
> > + compatible = "regulator-gpio";
> > + regulator-name = "BT_REG_ON";
> > + pinctrl-names = "default";
> > + regulator-min-microvolt = <100000>;
> > + regulator-max-microvolt = <3300000>;
> > + states = <3300000 0x1>, <100000 0x0>;
> > + gpios = <&gpio2 19 GPIO_ACTIVE_HIGH>;
> > + regulator-always-on;
> > + };
> > +
>
> Are you sure about regulator always on? I have seen that you broadcom
> wifi and bluetooth connected. Same comment for the other
> patches where you have almost all the regulator boot on , always on. I
> can not be sure that is really true
>
> Please take a look here
> arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi

thank you for your comment, for wifi/bt module is better to
remove regulator-always-on.

For other regulators (e.g. sgtl5000) they are fixed and always on
from an hardware design point of view.

Will remove regulator-always-on for bt_reg_on in the v3 patchset.

kr,

fabio

>
> Michael
>
> > + chosen {
> > + stdout-path = &lpuart1;
> > + };
> > +
> > + reg_1v8_sgtl: regulator-1v8-sgtl {
> > + compatible = "regulator-fixed";
> > + regulator-name = "1v8_sgtl";
> > + regulator-min-microvolt = <1800000>;
> > + regulator-max-microvolt = <1800000>;
> > + always-on;
> > + };
> > +
> > + reg_3v3_avdd_sgtl: regulator-3v3-avdd-sgtl {
> > + compatible = "regulator-fixed";
> > + regulator-name = "3v3_avdd_sgtl";
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> > + always-on;
> > + };
> > +
> > + reg_3v3_sgtl: regulator-3v3-sgtl {
> > + compatible = "regulator-fixed";
> > + regulator-name = "3v3_sgtl";
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> > + always-on;
> > + };
> > +
> > + reserved-memory {
> > + #address-cells = <2>;
> > + #size-cells = <2>;
> > + ranges;
> > +
> > + linux,cma {
> > + compatible = "shared-dma-pool";
> > + reusable;
> > + alloc-ranges = <0 0x80000000 0 0x40000000>;
> > + size = <0 0x10000000>;
> > + linux,cma-default;
> > + };
> > +
> > + rsc_table: rsc-table@2021f000 {
> > + reg = <0 0x2021f000 0 0x1000>;
> > + no-map;
> > + };
> > +
> > + vdevbuffer: vdevbuffer@a4020000 {
> > + compatible = "shared-dma-pool";
> > + reg = <0 0xa4020000 0 0x100000>;
> > + no-map;
> > + };
> > +
> > + vdev0vring0: vdev0vring0@a4000000 {
> > + reg = <0 0xa4000000 0 0x8000>;
> > + no-map;
> > + };
> > +
> > + vdev0vring1: vdev0vring1@a4008000 {
> > + reg = <0 0xa4008000 0 0x8000>;
> > + no-map;
> > + };
> > +
> > + vdev1vring0: vdev1vring0@a4000000 {
> > + reg = <0 0xa4010000 0 0x8000>;
> > + no-map;
> > + };
> > +
> > + vdev1vring1: vdev1vring1@a4018000 {
> > + reg = <0 0xa4018000 0 0x8000>;
> > + no-map;
> > + };
> > + };
> > +
> > + sound {
> > + compatible = "simple-audio-card";
> > + simple-audio-card,name = "imx93-sgtl5000";
> > + simple-audio-card,format = "i2s";
> > + simple-audio-card,bitclock-master = <&dailink_master>;
> > + simple-audio-card,frame-master = <&dailink_master>;
> > + /*simple-audio-card,mclk-fs = <1>;*/
> > + simple-audio-card,cpu {
> > + sound-dai = <&sai3>;
> > + };
> > +
> > + dailink_master: simple-audio-card,codec {
> > + sound-dai = <&sgtl5000>;
> > + clocks = <&clk IMX93_CLK_SAI3_IPG>;
> > + };
> > + };
> > +
> > + usdhc3_pwrseq: usdhc3-pwrseq {
> > + compatible = "mmc-pwrseq-simple";
> > + };
> > +
> > + wl_reg_on: regulator-wlregon {
> > + compatible = "regulator-gpio";
> > + pinctrl-names = "default";
> > + regulator-name = "WL_REG_ON";
> > + regulator-min-microvolt = <100000>;
> > + regulator-max-microvolt = <3300000>;
> > + states = <3300000 0x1>,
> > + <100000 0x0>;
> > + gpios = <&gpio2 22 GPIO_ACTIVE_HIGH>;
> > + enable-active-high;
> > + vin-supply = <&bt_reg_on>;
> > + };
> > +};
> > +
> > +&cm33 {
> > + mbox-names = "tx", "rx", "rxdb";
> > + mboxes = <&mu1 0 1>,
> > + <&mu1 1 1>,
> > + <&mu1 3 1>;
> > + memory-region = <&vdevbuffer>, <&vdev0vring0>, <&vdev0vring1>,
> > + <&vdev1vring0>, <&vdev1vring1>, <&rsc_table>;
> > + status = "okay";
> > +};
> > +
> > +&flexcan1 {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_flexcan1>;
> > + fsl,stop-mode = <&aonmix_ns_gpr 0x10 4>;
> > + status = "okay";
> > +};
> > +
> > +&flexcan2 {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_flexcan2>;
> > + fsl,stop-mode = <&aonmix_ns_gpr 0x10 4>;
> > + status = "okay";
> > +};
> > +
> > +&lpi2c1 {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + clock-frequency = <400000>;
> > + pinctrl-names = "default", "sleep";
> > + pinctrl-0 = <&pinctrl_lpi2c1>;
> > + pinctrl-1 = <&pinctrl_lpi2c1>;
> > + status = "okay";
> > +
> > + pcf8523: rtc@68 {
> > + compatible = "nxp,pcf8523";
> > + reg = <0x68>;
> > + };
> > +
> > + sgtl5000: codec@a {
> > + compatible = "fsl,sgtl5000";
> > + status = "okay";
> > + #sound-dai-cells = <0>;
> > + reg = <0x0a>;
> > + clocks = <&clk IMX93_CLK_SAI3_GATE>;
> > + clock-names = "mclk";
> > + assigned-clock-rates = <12000000>, <12000000>;
> > + VDDA-supply = <&reg_3v3_avdd_sgtl>;
> > + VDDIO-supply = <&reg_3v3_sgtl>;
> > + VDDD-supply = <&reg_1v8_sgtl>;
> > + };
> > +};
> > +
> > +&lpuart1 { /* console */
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_uart1>;
> > + status = "okay";
> > +};
> > +
> > +&lpuart5 { /* RS485 */
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_uart5>;
> > + status = "okay";
> > +};
> > +
> > +&lpuart8 { /* RS232 */
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_uart8>;
> > + status = "okay";
> > +};
> > +
> > +&micfil {
> > + #sound-dai-cells = <0>;
> > + pinctrl-names = "default";
> > + assigned-clocks = <&clk IMX93_CLK_PDM>;
> > + assigned-clock-parents = <&clk IMX93_CLK_AUDIO_PLL>;
> > + assigned-clock-rates = <196608000>;
> > + status = "okay";
> > +};
> > +
> > +&mu1 {
> > + status = "okay";
> > +};
> > +
> > +&mu2 {
> > + status = "okay";
> > +};
> > +
> > +&sai1 {
> > + #sound-dai-cells = <0>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_sai1>;
> > + assigned-clocks = <&clk IMX93_CLK_SAI1>;
> > + assigned-clock-parents = <&clk IMX93_CLK_AUDIO_PLL>;
> > + assigned-clock-rates = <12288000>;
> > + status = "okay";
> > +};
> > +
> > +&sai3 {
> > + pinctrl-names = "default";
> > + #sound-dai-cells = <0>;
> > + pinctrl-0 = <&pinctrl_sai3>;
> > + assigned-clocks = <&clk IMX93_CLK_SAI3>;
> > + assigned-clock-parents = <&clk IMX93_CLK_AUDIO_PLL>;
> > + assigned-clock-rates = <24576000>;
> > + fsl,sai-mclk-direction-output;
> > + status = "okay";
> > +};
> > +
> > +&usdhc3 { /* WiFi */
> > + pinctrl-names = "default", "state_100mhz", "state_200mhz";
> > + pinctrl-0 = <&pinctrl_usdhc3>, <&pinctrl_laird>;
> > + pinctrl-1 = <&pinctrl_usdhc3>, <&pinctrl_laird>;
> > + pinctrl-2 = <&pinctrl_usdhc3>, <&pinctrl_laird>;
> > + vmmc-supply = <&wl_reg_on>;
> > + bus-width = <4>;
> > + no-1-8-v;
> > + non-removable;
> > + max-frequency = <25000000>;
> > + status = "okay";
> > +
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + brcmf: bcrmf@1 {
> > + reg = <1>;
> > + compatible = "brcm,bcm4329-fmac";
> > + };
> > +};
> > +
> > +&wdog3 {
> > + status = "okay";
> > +};
> > +
> > +&iomuxc {
> > +
> > + pinctrl_flexcan1: flexcan1grp {
> > + fsl,pins = <
> > + MX93_PAD_PDM_CLK__CAN1_TX 0x139e
> > + MX93_PAD_PDM_BIT_STREAM0__CAN1_RX 0x139e
> > + >;
> > + };
> > +
> > + pinctrl_flexcan2: flexcan2grp {
> > + fsl,pins = <
> > + MX93_PAD_GPIO_IO25__CAN2_TX 0x139e
> > + MX93_PAD_GPIO_IO27__CAN2_RX 0x139e
> > + >;
> > + };
> > +
> > + pinctrl_laird: lairdgrp {
> > + fsl,pins = <
> > + MX93_PAD_GPIO_IO22__GPIO2_IO22 0x31e // WL_REG_ON
> > + MX93_PAD_GPIO_IO19__GPIO2_IO19 0x31e // BT_REG_ON
> > + >;
> > + };
> > +
> > + pinctrl_lpi2c1: lpi2c1grp {
> > + fsl,pins = <
> > + MX93_PAD_I2C1_SCL__LPI2C1_SCL 0x40000b9e
> > + MX93_PAD_I2C1_SDA__LPI2C1_SDA 0x40000b9e
> > + >;
> > + };
> > +
> > + pinctrl_sai1: sai1grp {
> > + fsl,pins = <
> > + MX93_PAD_SAI1_TXC__SAI1_TX_BCLK 0x31e
> > + MX93_PAD_SAI1_TXFS__SAI1_TX_SYNC 0x31e
> > + MX93_PAD_SAI1_TXD0__SAI1_TX_DATA00 0x31e
> > + MX93_PAD_SAI1_RXD0__SAI1_RX_DATA00 0x31e
> > + >;
> > + };
> > +
> > + pinctrl_sai3: sai3grp {
> > + fsl,pins = <
> > + MX93_PAD_GPIO_IO26__SAI3_TX_SYNC 0x31e
> > + MX93_PAD_GPIO_IO16__SAI3_TX_BCLK 0x31e
> > + MX93_PAD_GPIO_IO17__SAI3_MCLK 0x31e
> > + MX93_PAD_GPIO_IO21__SAI3_TX_DATA00 0x31e
> > + MX93_PAD_GPIO_IO20__SAI3_RX_DATA00 0x31e
> > + >;
> > + };
> > +
> > + pinctrl_uart1: uart1grp {
> > + fsl,pins = <
> > + MX93_PAD_UART1_RXD__LPUART1_RX 0x31e
> > + MX93_PAD_UART1_TXD__LPUART1_TX 0x31e
> > + >;
> > + };
> > +
> > + pinctrl_uart5: uart5grp {
> > + fsl,pins = <
> > + MX93_PAD_GPIO_IO01__LPUART5_RX 0x31e
> > + MX93_PAD_GPIO_IO00__LPUART5_TX 0x31e
> > + MX93_PAD_GPIO_IO02__LPUART5_CTS_B 0x31e
> > + MX93_PAD_GPIO_IO03__LPUART5_RTS_B 0x31e
> > + >;
> > + };
> > +
> > + pinctrl_uart8: uart8grp {
> > + fsl,pins = <
> > + MX93_PAD_GPIO_IO13__LPUART8_RX 0x31e
> > + MX93_PAD_GPIO_IO12__LPUART8_TX 0x31e
> > + >;
> > + };
> > +
> > + pinctrl_usdhc3: usdhc3grp {
> > + fsl,pins = <
> > + MX93_PAD_SD3_CLK__USDHC3_CLK 0x17fe
> > + MX93_PAD_SD3_CMD__USDHC3_CMD 0x13fe
> > + MX93_PAD_SD3_DATA0__USDHC3_DATA0 0x13fe
> > + MX93_PAD_SD3_DATA1__USDHC3_DATA1 0x13fe
> > + MX93_PAD_SD3_DATA2__USDHC3_DATA2 0x13fe
> > + MX93_PAD_SD3_DATA3__USDHC3_DATA3 0x13fe
> > + >;
> > + };
> > +};
> > --
> > 2.34.1
> >
> >
>
>
> --
> Michael Nazzareno Trimarchi
> Co-Founder & Chief Executive Officer
> M. +39 347 913 2170
> michael@xxxxxxxxxxxxxxxxxxxx
> __________________________________
>
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