[PATCH 3/4] ARM: dts: imx6ull-dhcom: Add DHCOM based PicoITX board
Christoph Niedermaier
cniedermaier at dh-electronics.com
Thu Nov 17 02:31:33 PST 2022
Add DT for DH PicoITX unit, which is a bare-bones carrier board for
the DHCOM. The board has ethernet port, USB, CAN, LED and a custom
board-to-board expansion connector. For this board a DHCOM i.MX6ULL
SoM configuration without WiFi/BT is used. The interface is used
for the SD card instead. Make this adjustment by using a separate DT
include file.
Signed-off-by: Christoph Niedermaier <cniedermaier at dh-electronics.com>
---
Cc: Rob Herring <robh+dt at kernel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt at linaro.org>
Cc: Peng Fan <peng.fan at nxp.com>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Marek Vasut <marex at denx.de>
Cc: Fabio Estevam <festevam at denx.de>
Cc: NXP Linux Team <linux-imx at nxp.com>
Cc: kernel at dh-electronics.com
To: linux-arm-kernel at lists.infradead.org
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/imx6ull-dhcom-picoitx.dts | 101 +++++++++++++++++++++
.../arm/boot/dts/imx6ull-dhcom-som-cfg-sdcard.dtsi | 96 ++++++++++++++++++++
3 files changed, 198 insertions(+)
create mode 100644 arch/arm/boot/dts/imx6ull-dhcom-picoitx.dts
create mode 100644 arch/arm/boot/dts/imx6ull-dhcom-som-cfg-sdcard.dtsi
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index c4bde7c1ef57..9ae8af0c1459 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -740,6 +740,7 @@ dtb-$(CONFIG_SOC_IMX6UL) += \
imx6ull-colibri-wifi-iris.dtb \
imx6ull-colibri-wifi-iris-v2.dtb \
imx6ull-dhcom-pdk2.dtb \
+ imx6ull-dhcom-picoitx.dtb \
imx6ull-jozacp.dtb \
imx6ull-kontron-bl.dtb \
imx6ull-myir-mys-6ulx-eval.dtb \
diff --git a/arch/arm/boot/dts/imx6ull-dhcom-picoitx.dts b/arch/arm/boot/dts/imx6ull-dhcom-picoitx.dts
new file mode 100644
index 000000000000..36ab94bff047
--- /dev/null
+++ b/arch/arm/boot/dts/imx6ull-dhcom-picoitx.dts
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
+/*
+ * Copyright (C) 2022 DH electronics GmbH
+ *
+ * DHCOM iMX6ULL variant:
+ * DHCM-iMX6ULL-C080-R051-F0409-SPI-E2-CAN2-SD-RTC-ADC-I-01D2
+ * DHCOR PCB number: 578-200 or newer
+ * DHCOM PCB number: 579-200 or newer
+ * PicoITX PCB number: 487-600 or newer
+ */
+/dts-v1/;
+
+#include "imx6ull-dhcom-som.dtsi"
+#include "imx6ull-dhcom-som-cfg-sdcard.dtsi"
+
+/ {
+ model = "DH electronics i.MX6ULL DHCOM on PicoITX";
+ compatible = "dh,imx6ull-dhcom-picoitx", "dh,imx6ull-dhcom-som",
+ "dh,imx6ull-dhcor-som", "fsl,imx6ull";
+
+ led {
+ compatible = "gpio-leds";
+
+ led-0 {
+ color = <LED_COLOR_ID_YELLOW>;
+ default-state = "off";
+ function = LED_FUNCTION_INDICATOR;
+ gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>; /* GPIO I */
+ };
+ };
+};
+
+&fec1 {
+ phy-handle = <&mdio1_phy0>;
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mdio1_phy0: ethernet-phy at 0 { /* SMSC LAN8710Ai */
+ clock-names = "rmii-ref";
+ clocks = <&clks IMX6UL_CLK_ENET_REF>;
+ compatible = "ethernet-phy-id0007.c0f0",
+ "ethernet-phy-ieee802.3-c22";
+ interrupt-parent = <&gpio5>;
+ interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+ pinctrl-0 = <&pinctrl_fec1_phy &pinctrl_snvs_fec1_phy>;
+ pinctrl-names = "default";
+ reg = <0>;
+ reset-assert-us = <500>;
+ reset-deassert-us = <500>;
+ reset-gpios = <&gpio3 23 GPIO_ACTIVE_LOW>;
+ smsc,disable-energy-detect; /* Make plugin detection reliable */
+ };
+ };
+};
+
+&fec2 {
+ status = "disabled";
+};
+
+&gpio4 {
+ gpio-line-names =
+ "", "", "", "",
+ "", "", "", "",
+ "", "", "", "",
+ "", "", "", "",
+ "", "PicoITX-HW2", "PicoITX-HW1", "DHCOM-M",
+ "PicoITX-HW0", "DHCOM-U", "DHCOM-T", "DHCOM-S",
+ "DHCOM-R", "DHCOM-Q", "DHCOM-P", "DHCOM-O",
+ "DHCOM-N", "", "", "";
+};
+
+&gpio5 {
+ gpio-line-names =
+ "DHCOM-A", "DHCOM-B", "PicoITX-In2", "PicoITX-Out2",
+ "PicoITX-In1", "", "", "PicoITX-Out1",
+ "DHCOM-G", "DHCOM-H", "", "",
+ "", "", "", "",
+ "", "", "", "",
+ "", "", "", "",
+ "", "", "", "",
+ "", "", "", "";
+};
+
+&iomuxc {
+ pinctrl_fec1: fec1-grp {
+ fsl,pins = <
+ MX6UL_PAD_GPIO1_IO07__ENET1_MDC 0x1b0b0
+ MX6UL_PAD_GPIO1_IO06__ENET1_MDIO 0x1b0b0
+ MX6UL_PAD_ENET1_RX_EN__ENET1_RX_EN 0x1b0b0
+ MX6UL_PAD_ENET1_RX_ER__ENET1_RX_ER 0x1b0b0
+ MX6UL_PAD_ENET1_RX_DATA0__ENET1_RDATA00 0x1b0b0
+ MX6UL_PAD_ENET1_RX_DATA1__ENET1_RDATA01 0x1b0b0
+ MX6UL_PAD_ENET1_TX_EN__ENET1_TX_EN 0x1b010
+ MX6UL_PAD_ENET1_TX_DATA0__ENET1_TDATA00 0x1b010
+ MX6UL_PAD_ENET1_TX_DATA1__ENET1_TDATA01 0x1b010
+ MX6UL_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 0x4001b010
+ >;
+ };
+};
diff --git a/arch/arm/boot/dts/imx6ull-dhcom-som-cfg-sdcard.dtsi b/arch/arm/boot/dts/imx6ull-dhcom-som-cfg-sdcard.dtsi
new file mode 100644
index 000000000000..e20495894f91
--- /dev/null
+++ b/arch/arm/boot/dts/imx6ull-dhcom-som-cfg-sdcard.dtsi
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
+/*
+ * Copyright (C) 2022 DH electronics GmbH
+ */
+
+/*
+ * Special SoM configuration: SD card
+ *
+ * Enabled: Micro SD card on module or
+ * external SD card via DHCOM depends on hardware variant
+ * GPIO H and GPIO I will be available
+ * DHCOM UART2 will be available
+ * Disabled: WiFi and BT
+ */
+
+/*
+ * To use usdhc1 as SD card, the WiFi node must be deleted.
+ * BT is also not available, so remove BT from the UART node.
+ */
+/delete-node/ &brcmf;
+/delete-node/ &bluetooth;
+
+/ {
+ aliases {
+ mmc1 = &usdhc1;
+ serial0 = &uart1;
+ serial1 = &uart2;
+ serial2 = &uart3;
+ serial3 = &uart4;
+ serial4 = &uart5;
+ serial5 = &uart6;
+ };
+
+ reg_sd1_vmmc: regulator-sd1-vmmc {
+ compatible = "regulator-fixed";
+ regulator-max-microvolt = <3300000>;
+ regulator-min-microvolt = <3300000>;
+ regulator-name = "VSD_3V3";
+ };
+};
+
+&usdhc1 { /* Micro SD card on module or external SD card via DHCOM */
+ /delete-property/ #address-cells;
+ /delete-property/ #size-cells;
+ /delete-property/ keep-power-in-suspend;
+ /delete-property/ mmc-pwrseq;
+ /delete-property/ non-removable;
+ /delete-property/ wakeup-source;
+ cd-gpios = <&gpio1 19 GPIO_ACTIVE_LOW>;
+ no-1-8-v;
+ pinctrl-0 = <&pinctrl_usdhc1>;
+ pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
+ pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ vmmc-supply = <®_sd1_vmmc>;
+ status = "okay";
+};
+
+&iomuxc {
+ pinctrl_usdhc1: usdhc1-grp {
+ fsl,pins = <
+ MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x17059
+ MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x10059
+ MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x17059
+ MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x17059
+ MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x17059
+ MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x17059
+ MX6UL_PAD_UART1_RTS_B__GPIO1_IO19 0x120b0 /* SD1 CD */
+ >;
+ };
+
+ pinctrl_usdhc1_100mhz: usdhc1-100mhz-grp {
+ fsl,pins = <
+ MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x170b9
+ MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x100b9
+ MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x170b9
+ MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x170b9
+ MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x170b9
+ MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x170b9
+ MX6UL_PAD_UART1_RTS_B__GPIO1_IO19 0x120b0 /* SD1 CD */
+
+ >;
+ };
+
+ pinctrl_usdhc1_200mhz: usdhc1-200mhz-grp {
+ fsl,pins = <
+ MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x170f9
+ MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x100f9
+ MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x170f9
+ MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x170f9
+ MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x170f9
+ MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x170f9
+ MX6UL_PAD_UART1_RTS_B__GPIO1_IO19 0x120b0 /* SD1 CD */
+ >;
+ };
+};
--
2.11.0
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