[PATCH 1/1] overlays: ed-ipc: Add EDATEC IPC/EXP unified board overlay
Yufeng Gao
yufeng.gao at canonical.com
Mon Jul 13 01:13:40 UTC 2026
From: zjzhao <zjzhao at edatec.cn>
BugLink: https://bugs.launchpad.net/bugs/2160474
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 at edatec.cn>
(cherry picked from commit 256d6b4bc33527fae9967773b2a0d3b92e1bd000 rpi-6.18.y)
Signed-off-by: Yufeng Gao <yufeng.gao at canonical.com>
---
arch/arm/boot/dts/overlays/Makefile | 1 +
arch/arm/boot/dts/overlays/README | 53 ++++
arch/arm/boot/dts/overlays/ed-ipc-overlay.dts | 279 ++++++++++++++++++
3 files changed, 333 insertions(+)
create mode 100644 arch/arm/boot/dts/overlays/ed-ipc-overlay.dts
diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile
index 000e575c2804..0fcfc15b130c 100644
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -62,6 +62,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
draws.dtbo \
dwc-otg-deprecated.dtbo \
dwc2.dtbo \
+ ed-ipc.dtbo \
edt-ft5406.dtbo \
enc28j60.dtbo \
enc28j60-spi2.dtbo \
diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
index 27ef2f3a327c..8fddef1f5eea 100644
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -1274,6 +1274,59 @@ Params: dr_mode Dual role mode: "host", "peripheral" or "otg"
mode
+Name: ed-ipc
+Info: Configures the EDATEC IPC/EXP series hardware peripherals.
+ This overlay provides support for PCA9535 GPIO expanders on
+ the EDATEC industrial PC carrier boards, including interrupt
+ handling, GPIO line names, and optional secondary expander
+ on i2c_arm.
+Load: dtoverlay=ed-ipc,<param>=<val>
+Params: addr I2C address for primary PCA9535 GPIO expander
+ (default 0x20)
+
+ exp_addr I2C address for secondary PCA9535 GPIO
+ expander on i2c_arm (default 0x27)
+
+ ipc3100 Enable configuration for IPC3100 board
+ (CM5, i2c_csi_dsi0, PCA int GPIO6)
+
+ ipc2100 Enable configuration for IPC2100 board
+ (CM4, i2c_csi_dsi, PCA int GPIO6)
+
+ ipc2210 Enable configuration for IPC2210 board
+ (CM4, i2c_csi_dsi, PCA int GPIO6)
+
+ ipc3210 Enable configuration for IPC3210 board
+ (CM5, i2c_csi_dsi0, PCA int GPIO6)
+
+ ipc1200 Enable configuration for IPC1200 board
+ (CM4, i2c_csi_dsi, PCA int GPIO15)
+
+ ipc3300 Enable configuration for IPC3300 board
+ (CM5, i2c_arm, PCA int GPIO38)
+
+ ipc2300 Enable configuration for IPC2300 board
+ (CM4, i2c_arm, PCA int GPIO44)
+
+ plc2010 Enable configuration for PLC2010 board
+ (i2c_arm, PCA int GPIO7, addr 0x21)
+
+ exp8x8y Enable 8-input/8-output expansion module
+ (CM5, i2c_arm)
+
+ exp4x4y Enable 4-input/4-output expansion module
+ (CM5, i2c_arm, exp at addr 0x21)
+
+ ipc3600 Enable combined configuration for IPC3600
+ (IPC3100 + exp8x8y)
+
+ ipc2600 Enable combined configuration for IPC2600
+ (IPC2100 + exp8x8y)
+
+ ipc1220 Enable combined configuration for IPC1220
+ (IPC1200 + exp4x4y)
+
+
[ The ds1307-rtc overlay has been deleted. See i2c-rtc. ]
diff --git a/arch/arm/boot/dts/overlays/ed-ipc-overlay.dts b/arch/arm/boot/dts/overlays/ed-ipc-overlay.dts
new file mode 100644
index 000000000000..1784234d45ad
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/ed-ipc-overlay.dts
@@ -0,0 +1,279 @@
+/*
+ * EDATEC IPC/EXP unified board overlay
+ */
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "brcm,bcm2835";
+ i2c_frag: fragment at 0 {
+ target = <&i2c_csi_dsi0>;
+ __dormant__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ pca_base: pca at 20 {
+ compatible = "nxp,pca9535";
+ reg = <0x20>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ status = "okay";
+ };
+ };
+ };
+
+ fragment at 100 {
+ target = <&i2c0if>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment at 101 {
+ target = <&i2c0mux>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment at 200 {
+ target = <&pca_base>;
+ __dormant__ {
+ gpio-line-names = "5V_GOOD", "LVD", "BUZZER_EN",
+ "4G_RST", "4G_LED", "USER_LED";
+ };
+ };
+
+ fragment at 201 {
+ target = <&pca_base>;
+ __dormant__ {
+ gpio-line-names = "5V_GOOD", "LVD", "BUZZER_EN",
+ "4G_RST", "4G_LED", "5G_RST",
+ "5G_PWR_ON", "USER_LED",
+ "MSATA_PRSNT";
+ };
+ };
+
+ fragment at 203 {
+ target = <&pca_base>;
+ __dormant__ {
+ gpio-line-names = "BL_EN_L", "BL_BTN_EN", "BL_BTN_UP",
+ "BL_BTN_DOWN", "BUZZER_EN",
+ "4G_RST", "MSATA_PRSNT", "FAN_EN",
+ "NC", "NC", "NC", "NC",
+ "NC", "NC", "NC", "PANEL_ON_L";
+ };
+ };
+
+ fragment at 205 {
+ target = <&pca_base>;
+ __dormant__ {
+ gpio-line-names = "USB_RST", "WK_RST", "4G_PWR",
+ "4G_RST", "4G_BOOT",
+ "4G_LED_REG_RED", "4G_LED_REG_GED",
+ "4G_LED_SIG_RED", "4G_LED_SIG_GED",
+ "USER_LED_RED", "USER_LED_GED",
+ "LCD_RST", "4G_PRESENT",
+ "IOB1_PRESENT", "IOB2_PRESENT";
+ };
+ };
+
+ fragment at 206 {
+ target = <&pca_base>;
+ __dormant__ {
+ gpio-line-names = "4G_RST", "LED_ERR", "LED_UPDATE",
+ "LED_UDISK_BUSY", "LED_4G_EXP",
+ "LED_UDISK_DET",
+ "SW_FACTORY_RST", "SW_IP_ADDR_RST",
+ "SW_START_STOP", "SW_APP_IMPORT",
+ "SW_UDISK_REMOVE";
+ };
+ };
+
+ fragment at 210 {
+ target = <&pca_base>;
+ __dormant__ {
+ interrupt-parent = <&gpio>;
+ interrupts = <6 2>; /* IRQ_TYPE_EDGE_FALLING */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pca_irq6>;
+ };
+ };
+
+ fragment at 212 {
+ target = <&pca_base>;
+ __dormant__ {
+ interrupt-parent = <&gpio>;
+ interrupts = <38 2>; /* IPC2300 CM5 */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pca_irq38>;
+ };
+ };
+
+ fragment at 213 {
+ target = <&pca_base>;
+ __dormant__ {
+ interrupt-parent = <&gpio>;
+ interrupts = <44 2>; /* IPC2300 CM4 */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pca_irq44>;
+ };
+ };
+
+ fragment at 214 {
+ target = <&pca_base>;
+ __dormant__ {
+ interrupt-parent = <&gpio>;
+ interrupts = <7 2>; /* PLC2010 */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pca_irq7>;
+ };
+ };
+
+ fragment at 310 {
+ target = <&gpio>;
+ __dormant__ {
+ pca_irq6: pca_irq6 {
+ brcm,pins = <6>;
+ brcm,function = <0>; /* input */
+ };
+ };
+ };
+
+ fragment at 312 {
+ target = <&gpio>;
+ __dormant__ {
+ pca_irq38: pca_irq38 {
+ brcm,pins = <38>;
+ brcm,function = <0>; /* input */
+ };
+ };
+ };
+
+ fragment at 313 {
+ target = <&gpio>;
+ __dormant__ {
+ pca_irq44: pca_irq44 {
+ brcm,pins = <44>;
+ brcm,function = <0>; /* input */
+ };
+ };
+ };
+
+ fragment at 314 {
+ target = <&gpio>;
+ __dormant__ {
+ pca_irq7: pca_irq7 {
+ brcm,pins = <7>;
+ brcm,function = <0>; /* input */
+ };
+ };
+ };
+
+ fragment at 400 {
+ target = <&i2c_arm>;
+ __dormant__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ pca_exp: pca at 27 {
+ compatible = "nxp,pca9535";
+ reg = <0x27>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ status = "okay";
+ };
+ };
+ };
+
+ fragment at 500 {
+ target = <&pca_exp>;
+ __dormant__ {
+ gpio-line-names = "DI0", "DI1", "DI2", "DI3",
+ "DI4", "DI5", "DI6", "DI7",
+ "DO0", "DO1", "DO2", "DO3",
+ "DO4", "DO5", "DO6", "DO7";
+ };
+ };
+
+ fragment at 501 {
+ target = <&pca_exp>;
+ __dormant__ {
+ gpio-line-names = "DI4", "DI5", "DI6", "DI7",
+ "DO4", "DO5", "DO6", "DO7",
+ "NC", "NC", "NC", "NC",
+ "NC", "NC", "NC", "NC";
+ };
+ };
+
+ fragment at 410 {
+ target = <&pca_exp>;
+ __dormant__ {
+ interrupt-parent = <&gpio>;
+ interrupts = <10 2>; /* EXP8X8Y */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pca_irq10>;
+ };
+ };
+
+ fragment at 411 {
+ target = <&pca_exp>;
+ __dormant__ {
+ interrupt-parent = <&gpio>;
+ interrupts = <4 2>; /* EXP4X4Y */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pca_irq4>;
+ };
+ };
+
+ fragment at 510 {
+ target = <&gpio>;
+ __dormant__ {
+ pca_irq10: pca_irq10 {
+ brcm,pins = <10>;
+ brcm,function = <0>; /* input */
+ };
+ };
+ };
+
+ fragment at 511 {
+ target = <&gpio>;
+ __dormant__ {
+ pca_irq4: pca_irq4 {
+ brcm,pins = <4>;
+ brcm,function = <0>; /* input */
+ };
+ };
+ };
+
+ __overrides__ {
+ addr = <&pca_base>, "reg:0";
+ exp_addr = <&pca_exp>, "reg:0";
+ ipc3100 = <0>, "+0+200+210+310";
+ ipc2100 = <0>, "+0+200+210+310",
+ <&i2c_frag>, "target:0=", <&i2c_csi_dsi>;
+ ipc2210 = <0>, "+0+201+210+310",
+ <&i2c_frag>, "target:0=", <&i2c_csi_dsi>;
+ ipc3210 = <0>, "+0+201+210+310";
+ ipc1200 = <0>, "+0+205",
+ <&i2c_frag>, "target:0=", <&i2c_csi_dsi>;
+ ipc3300 = <0>, "+0+203+212+312",
+ <&i2c_frag>, "target:0=", <&i2c_arm>;
+ ipc2300 = <0>, "+0+203+213+313",
+ <&i2c_frag>, "target:0=", <&i2c_arm>;
+ plc2010 = <0>, "+0+206+214+314",
+ <&i2c_frag>, "target:0=", <&i2c_arm>,
+ <&pca_base>, "reg:0=", <0x21>;
+ exp8x8y = <0>, "+400+500+410+510"; /* default CM5 */
+ exp4x4y = <0>, "+400+501+411+511",
+ <&pca_exp>, "reg:0=", <0x21>; /* default CM5 */
+ ipc3600 = <0>, "+0+200+210+310+400+500+410+510";
+ ipc2600 = <0>, "+0+200+210+310+400+500+410+510",
+ <&i2c_frag>, "target:0=", <&i2c_csi_dsi>;
+ ipc1220 = <0>, "+0+205+400+501+411+511",
+ <&i2c_frag>, "target:0=", <&i2c_csi_dsi>,
+ <&pca_exp>, "reg:0=", <0x21>;
+ };
+};
--
2.43.0
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