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overlays: ed-ipc: Add EDATEC IPC/EXP unified board overlay
Add a new overlay for EDATEC IPC/EXP series industrial PC carrier boards. This overlay configures PCA9535 GPIO expanders on both i2c_csi_dsi and i2c_arm buses, with support for multiple board profiles (IPC2100, IPC2300, IPC3100, IPC3300, PLC2010, etc.) and optional expansion modules (exp8x8y, exp4x4y). Signed-off-by: zjzhao <zjzhao@edatec.cn>
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‎arch/arm/boot/dts/overlays/Makefile‎

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@@ -63,6 +63,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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draws-pi5.dtbo \
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dwc-otg-deprecated.dtbo \
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dwc2.dtbo \
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ed-ipc.dtbo \
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edt-ft5406.dtbo \
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enc28j60.dtbo \
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enc28j60-spi2.dtbo \

‎arch/arm/boot/dts/overlays/README‎

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@@ -1278,6 +1278,59 @@ Params: dr_mode Dual role mode: "host", "peripheral" or "otg"
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mode
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Name: ed-ipc
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Info: Configures the EDATEC IPC/EXP series hardware peripherals.
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This overlay provides support for PCA9535 GPIO expanders on
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the EDATEC industrial PC carrier boards, including interrupt
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handling, GPIO line names, and optional secondary expander
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on i2c_arm.
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Load: dtoverlay=ed-ipc,<param>=<val>
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Params: addr I2C address for primary PCA9535 GPIO expander
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(default 0x20)
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exp_addr I2C address for secondary PCA9535 GPIO
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expander on i2c_arm (default 0x27)
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ipc3100 Enable configuration for IPC3100 board
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(CM5, i2c_csi_dsi0, PCA int GPIO6)
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ipc2100 Enable configuration for IPC2100 board
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(CM4, i2c_csi_dsi, PCA int GPIO6)
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ipc2210 Enable configuration for IPC2210 board
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(CM4, i2c_csi_dsi, PCA int GPIO6)
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ipc3210 Enable configuration for IPC3210 board
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(CM5, i2c_csi_dsi0, PCA int GPIO6)
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ipc1200 Enable configuration for IPC1200 board
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(CM4, i2c_csi_dsi, PCA int GPIO15)
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ipc3300 Enable configuration for IPC3300 board
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(CM5, i2c_arm, PCA int GPIO38)
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ipc2300 Enable configuration for IPC2300 board
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(CM4, i2c_arm, PCA int GPIO44)
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plc2010 Enable configuration for PLC2010 board
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(i2c_arm, PCA int GPIO7, addr 0x21)
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exp8x8y Enable 8-input/8-output expansion module
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(CM5, i2c_arm)
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exp4x4y Enable 4-input/4-output expansion module
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(CM5, i2c_arm, exp at addr 0x21)
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ipc3600 Enable combined configuration for IPC3600
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(IPC3100 + exp8x8y)
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ipc2600 Enable combined configuration for IPC2600
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(IPC2100 + exp8x8y)
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ipc1220 Enable combined configuration for IPC1220
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(IPC1200 + exp4x4y)
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[ The ds1307-rtc overlay has been deleted. See i2c-rtc. ]
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‎arch/arm/boot/dts/overlays/ed-ipc-overlay.dts‎

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/*
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* EDATEC IPC/EXP unified board overlay
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*/
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/dts-v1/;
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/plugin/;
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/ {
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compatible = "brcm,bcm2835";
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i2c_frag: fragment@0 {
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target = <&i2c_csi_dsi0>;
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__dormant__ {
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#address-cells = <1>;
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#size-cells = <0>;
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status = "okay";
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pca_base: pca@20 {
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compatible = "nxp,pca9535";
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reg = <0x20>;
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gpio-controller;
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#gpio-cells = <2>;
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status = "okay";
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};
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};
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};
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fragment@100 {
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target = <&i2c0if>;
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__overlay__ {
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status = "okay";
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};
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};
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fragment@101 {
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target = <&i2c0mux>;
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__overlay__ {
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status = "okay";
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};
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};
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fragment@200 {
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target = <&pca_base>;
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__dormant__ {
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gpio-line-names = "5V_GOOD", "LVD", "BUZZER_EN",
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"4G_RST", "4G_LED", "USER_LED";
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};
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};
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fragment@201 {
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target = <&pca_base>;
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__dormant__ {
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gpio-line-names = "5V_GOOD", "LVD", "BUZZER_EN",
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"4G_RST", "4G_LED", "5G_RST",
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"5G_PWR_ON", "USER_LED",
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"MSATA_PRSNT";
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};
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};
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fragment@203 {
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target = <&pca_base>;
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__dormant__ {
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gpio-line-names = "BL_EN_L", "BL_BTN_EN", "BL_BTN_UP",
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"BL_BTN_DOWN", "BUZZER_EN",
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"4G_RST", "MSATA_PRSNT", "FAN_EN",
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"NC", "NC", "NC", "NC",
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"NC", "NC", "NC", "PANEL_ON_L";
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};
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};
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fragment@205 {
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target = <&pca_base>;
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__dormant__ {
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gpio-line-names = "USB_RST", "WK_RST", "4G_PWR",
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"4G_RST", "4G_BOOT",
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"4G_LED_REG_RED", "4G_LED_REG_GED",
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"4G_LED_SIG_RED", "4G_LED_SIG_GED",
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"USER_LED_RED", "USER_LED_GED",
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"LCD_RST", "4G_PRESENT",
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"IOB1_PRESENT", "IOB2_PRESENT";
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};
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};
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fragment@206 {
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target = <&pca_base>;
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__dormant__ {
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gpio-line-names = "4G_RST", "LED_ERR", "LED_UPDATE",
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"LED_UDISK_BUSY", "LED_4G_EXP",
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"LED_UDISK_DET",
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"SW_FACTORY_RST", "SW_IP_ADDR_RST",
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"SW_START_STOP", "SW_APP_IMPORT",
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"SW_UDISK_REMOVE";
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};
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};
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fragment@210 {
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target = <&pca_base>;
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__dormant__ {
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interrupt-parent = <&gpio>;
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interrupts = <6 2>; /* IRQ_TYPE_EDGE_FALLING */
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pinctrl-names = "default";
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pinctrl-0 = <&pca_irq6>;
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};
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};
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fragment@212 {
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target = <&pca_base>;
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__dormant__ {
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interrupt-parent = <&gpio>;
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interrupts = <38 2>; /* IPC2300 CM5 */
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pinctrl-names = "default";
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pinctrl-0 = <&pca_irq38>;
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};
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};
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fragment@213 {
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target = <&pca_base>;
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__dormant__ {
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interrupt-parent = <&gpio>;
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interrupts = <44 2>; /* IPC2300 CM4 */
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pinctrl-names = "default";
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pinctrl-0 = <&pca_irq44>;
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};
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};
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fragment@214 {
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target = <&pca_base>;
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__dormant__ {
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interrupt-parent = <&gpio>;
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interrupts = <7 2>; /* PLC2010 */
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pinctrl-names = "default";
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pinctrl-0 = <&pca_irq7>;
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};
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};
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fragment@310 {
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target = <&gpio>;
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__dormant__ {
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pca_irq6: pca_irq6 {
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brcm,pins = <6>;
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brcm,function = <0>; /* input */
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};
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};
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};
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fragment@312 {
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target = <&gpio>;
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__dormant__ {
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pca_irq38: pca_irq38 {
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brcm,pins = <38>;
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brcm,function = <0>; /* input */
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};
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};
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};
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fragment@313 {
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target = <&gpio>;
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__dormant__ {
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pca_irq44: pca_irq44 {
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brcm,pins = <44>;
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brcm,function = <0>; /* input */
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};
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};
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};
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fragment@314 {
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target = <&gpio>;
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__dormant__ {
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pca_irq7: pca_irq7 {
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brcm,pins = <7>;
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brcm,function = <0>; /* input */
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};
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};
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};
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fragment@400 {
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target = <&i2c_arm>;
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__dormant__ {
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#address-cells = <1>;
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#size-cells = <0>;
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status = "okay";
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pca_exp: pca@27 {
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compatible = "nxp,pca9535";
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reg = <0x27>;
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gpio-controller;
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#gpio-cells = <2>;
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status = "okay";
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};
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};
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};
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fragment@500 {
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target = <&pca_exp>;
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__dormant__ {
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gpio-line-names = "DI0", "DI1", "DI2", "DI3",
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"DI4", "DI5", "DI6", "DI7",
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"DO0", "DO1", "DO2", "DO3",
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"DO4", "DO5", "DO6", "DO7";
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};
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};
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fragment@501 {
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target = <&pca_exp>;
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__dormant__ {
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gpio-line-names = "DI4", "DI5", "DI6", "DI7",
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"DO4", "DO5", "DO6", "DO7",
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"NC", "NC", "NC", "NC",
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"NC", "NC", "NC", "NC";
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};
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};
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fragment@410 {
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target = <&pca_exp>;
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__dormant__ {
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interrupt-parent = <&gpio>;
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interrupts = <10 2>; /* EXP8X8Y */
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pinctrl-names = "default";
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pinctrl-0 = <&pca_irq10>;
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};
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};
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fragment@411 {
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target = <&pca_exp>;
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__dormant__ {
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interrupt-parent = <&gpio>;
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interrupts = <4 2>; /* EXP4X4Y */
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pinctrl-names = "default";
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pinctrl-0 = <&pca_irq4>;
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};
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};
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fragment@510 {
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target = <&gpio>;
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__dormant__ {
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pca_irq10: pca_irq10 {
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brcm,pins = <10>;
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brcm,function = <0>; /* input */
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};
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};
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};
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fragment@511 {
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target = <&gpio>;
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__dormant__ {
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pca_irq4: pca_irq4 {
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brcm,pins = <4>;
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brcm,function = <0>; /* input */
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};
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};
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};
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__overrides__ {
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addr = <&pca_base>, "reg:0";
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exp_addr = <&pca_exp>, "reg:0";
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ipc3100 = <0>, "+0+200+210+310";
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ipc2100 = <0>, "+0+200+210+310",
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<&i2c_frag>, "target:0=", <&i2c_csi_dsi>;
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ipc2210 = <0>, "+0+201+210+310",
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<&i2c_frag>, "target:0=", <&i2c_csi_dsi>;
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ipc3210 = <0>, "+0+201+210+310";
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ipc1200 = <0>, "+0+205",
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<&i2c_frag>, "target:0=", <&i2c_csi_dsi>;
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ipc3300 = <0>, "+0+203+212+312",
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<&i2c_frag>, "target:0=", <&i2c_arm>;
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ipc2300 = <0>, "+0+203+213+313",
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<&i2c_frag>, "target:0=", <&i2c_arm>;
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plc2010 = <0>, "+0+206+214+314",
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<&i2c_frag>, "target:0=", <&i2c_arm>,
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<&pca_base>, "reg:0=", <0x21>;
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exp8x8y = <0>, "+400+500+410+510"; /* default CM5 */
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exp4x4y = <0>, "+400+501+411+511",
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<&pca_exp>, "reg:0=", <0x21>; /* default CM5 */
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ipc3600 = <0>, "+0+200+210+310+400+500+410+510";
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ipc2600 = <0>, "+0+200+210+310+400+500+410+510",
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<&i2c_frag>, "target:0=", <&i2c_csi_dsi>;
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ipc1220 = <0>, "+0+205+400+501+411+511",
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<&i2c_frag>, "target:0=", <&i2c_csi_dsi>,
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<&pca_exp>, "reg:0=", <0x21>;
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};
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};

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