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overlays: ed-ipc: Add EDATEC IPC/EXP unified board overlay #7479

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Merged
pelwell merged 1 commit into from
Jul 8, 2026
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Merged

overlays: ed-ipc: Add EDATEC IPC/EXP unified board overlay #7479

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1 change: 1 addition & 0 deletions arch/arm/boot/dts/overlays/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
draws-pi5.dtbo \
dwc-otg-deprecated.dtbo \
dwc2.dtbo \
ed-ipc.dtbo \
edt-ft5406.dtbo \
enc28j60.dtbo \
enc28j60-spi2.dtbo \
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53 changes: 53 additions & 0 deletions arch/arm/boot/dts/overlays/README
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Expand Up @@ -1278,6 +1278,59 @@ 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. ]


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279 changes: 279 additions & 0 deletions arch/arm/boot/dts/overlays/ed-ipc-overlay.dts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,279 @@
/*
* EDATEC IPC/EXP unified board overlay
*/
/dts-v1/;
/plugin/;

/ {
compatible = "brcm,bcm2835";
i2c_frag: fragment@0 {
target = <&i2c_csi_dsi0>;
__dormant__ {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";

pca_base: pca@20 {
compatible = "nxp,pca9535";
reg = <0x20>;
gpio-controller;
#gpio-cells = <2>;
status = "okay";
};
};
};

fragment@100 {
target = <&i2c0if>;
__overlay__ {
status = "okay";
};
};

fragment@101 {
target = <&i2c0mux>;
__overlay__ {
status = "okay";
};
};

fragment@200 {
target = <&pca_base>;
__dormant__ {
gpio-line-names = "5V_GOOD", "LVD", "BUZZER_EN",
"4G_RST", "4G_LED", "USER_LED";
};
};

fragment@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@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@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@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@210 {
target = <&pca_base>;
__dormant__ {
interrupt-parent = <&gpio>;
interrupts = <6 2>; /* IRQ_TYPE_EDGE_FALLING */
pinctrl-names = "default";
pinctrl-0 = <&pca_irq6>;
};
};

fragment@212 {
target = <&pca_base>;
__dormant__ {
interrupt-parent = <&gpio>;
interrupts = <38 2>; /* IPC2300 CM5 */
pinctrl-names = "default";
pinctrl-0 = <&pca_irq38>;
};
};

fragment@213 {
target = <&pca_base>;
__dormant__ {
interrupt-parent = <&gpio>;
interrupts = <44 2>; /* IPC2300 CM4 */
pinctrl-names = "default";
pinctrl-0 = <&pca_irq44>;
};
};

fragment@214 {
target = <&pca_base>;
__dormant__ {
interrupt-parent = <&gpio>;
interrupts = <7 2>; /* PLC2010 */
pinctrl-names = "default";
pinctrl-0 = <&pca_irq7>;
};
};

fragment@310 {
target = <&gpio>;
__dormant__ {
pca_irq6: pca_irq6 {
brcm,pins = <6>;
brcm,function = <0>; /* input */
};
};
};

fragment@312 {
target = <&gpio>;
__dormant__ {
pca_irq38: pca_irq38 {
brcm,pins = <38>;
brcm,function = <0>; /* input */
};
};
};

fragment@313 {
target = <&gpio>;
__dormant__ {
pca_irq44: pca_irq44 {
brcm,pins = <44>;
brcm,function = <0>; /* input */
};
};
};

fragment@314 {
target = <&gpio>;
__dormant__ {
pca_irq7: pca_irq7 {
brcm,pins = <7>;
brcm,function = <0>; /* input */
};
};
};

fragment@400 {
target = <&i2c_arm>;
__dormant__ {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";

pca_exp: pca@27 {
compatible = "nxp,pca9535";
reg = <0x27>;
gpio-controller;
#gpio-cells = <2>;
status = "okay";
};
};
};

fragment@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@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@410 {
target = <&pca_exp>;
__dormant__ {
interrupt-parent = <&gpio>;
interrupts = <10 2>; /* EXP8X8Y */
pinctrl-names = "default";
pinctrl-0 = <&pca_irq10>;
};
};

fragment@411 {
target = <&pca_exp>;
__dormant__ {
interrupt-parent = <&gpio>;
interrupts = <4 2>; /* EXP4X4Y */
pinctrl-names = "default";
pinctrl-0 = <&pca_irq4>;
};
};

fragment@510 {
target = <&gpio>;
__dormant__ {
pca_irq10: pca_irq10 {
brcm,pins = <10>;
brcm,function = <0>; /* input */
};
};
};

fragment@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>;
};
};
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