* [PATCH v6 1/5] ARM: dts: imx28: add pwm7 muxing options
2025-06-20 8:06 [PATCH v6 0/5] Support i.MX28 Amarula rmm board Dario Binacchi
@ 2025-06-20 8:06 ` Dario Binacchi
2025-06-20 8:06 ` [PATCH v6 2/5] dt-bindings: arm: fsl: add i.MX28 Amarula rmm board Dario Binacchi
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Dario Binacchi @ 2025-06-20 8:06 UTC (permalink / raw)
To: linux-kernel
Cc: michael, linux-amarula, Frank Li, Dario Binacchi, Conor Dooley,
Fabio Estevam, Krzysztof Kozlowski, Pengutronix Kernel Team,
Rob Herring, Sascha Hauer, Shawn Guo, devicetree, imx,
linux-arm-kernel
Add alternative pinmuxing for pwm7.
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
---
(no changes since v5)
Changes in v5:
- Add Reviewed-by tag of Frank Li
Changes in v3:
- Add commit body
arch/arm/boot/dts/nxp/mxs/imx28.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/boot/dts/nxp/mxs/imx28.dtsi b/arch/arm/boot/dts/nxp/mxs/imx28.dtsi
index bbea8b77386f..ece46d0e7c7f 100644
--- a/arch/arm/boot/dts/nxp/mxs/imx28.dtsi
+++ b/arch/arm/boot/dts/nxp/mxs/imx28.dtsi
@@ -755,6 +755,16 @@ MX28_PAD_PWM4__PWM_4
fsl,pull-up = <MXS_PULL_DISABLE>;
};
+ pwm7_pins_a: pwm7@0 {
+ reg = <0>;
+ fsl,pinmux-ids = <
+ MX28_PAD_SAIF1_SDATA0__PWM_7
+ >;
+ fsl,drive-strength = <MXS_DRIVE_4mA>;
+ fsl,voltage = <MXS_VOLTAGE_HIGH>;
+ fsl,pull-up = <MXS_PULL_DISABLE>;
+ };
+
lcdif_24bit_pins_a: lcdif-24bit@0 {
reg = <0>;
fsl,pinmux-ids = <
--
2.43.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH v6 2/5] dt-bindings: arm: fsl: add i.MX28 Amarula rmm board
2025-06-20 8:06 [PATCH v6 0/5] Support i.MX28 Amarula rmm board Dario Binacchi
2025-06-20 8:06 ` [PATCH v6 1/5] ARM: dts: imx28: add pwm7 muxing options Dario Binacchi
@ 2025-06-20 8:06 ` Dario Binacchi
2025-06-20 8:06 ` [PATCH v6 3/5] ARM: dts: mxs: support " Dario Binacchi
2025-07-01 10:16 ` [PATCH v6 0/5] Support " Shawn Guo
3 siblings, 0 replies; 5+ messages in thread
From: Dario Binacchi @ 2025-06-20 8:06 UTC (permalink / raw)
To: linux-kernel
Cc: michael, linux-amarula, Frank Li, Dario Binacchi, Conor Dooley,
Alexander Stein, Conor Dooley, Francesco Dolcini,
Frieder Schrempf, Heiko Schocher, Krzysztof Kozlowski,
Marek Vasut, Markus Niebel, Max Merchel, Michael Walle,
Primoz Fiser, Rob Herring, Shawn Guo, Tim Harvey, devicetree
The board includes the following resources:
- 256 Mbytes NAND Flash
- 128 Mbytes DRAM DDR2
- CAN
- USB 2.0 high-speed/full-speed
- Ethernet MAC
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
---
(no changes since v3)
Changes in v3:
- Add Acked-by tag of Conor Dooley
Documentation/devicetree/bindings/arm/fsl.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index d3b5e6923e41..eb519ab14296 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -89,6 +89,7 @@ properties:
- description: i.MX28 based Boards
items:
- enum:
+ - amarula,imx28-rmm
- armadeus,imx28-apf28 # APF28 SoM
- bluegiga,apx4devkit # Bluegiga APx4 SoM on dev board
- crystalfontz,cfa10036 # Crystalfontz CFA-10036 SoM
--
2.43.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH v6 3/5] ARM: dts: mxs: support i.MX28 Amarula rmm board
2025-06-20 8:06 [PATCH v6 0/5] Support i.MX28 Amarula rmm board Dario Binacchi
2025-06-20 8:06 ` [PATCH v6 1/5] ARM: dts: imx28: add pwm7 muxing options Dario Binacchi
2025-06-20 8:06 ` [PATCH v6 2/5] dt-bindings: arm: fsl: add i.MX28 Amarula rmm board Dario Binacchi
@ 2025-06-20 8:06 ` Dario Binacchi
2025-07-01 10:16 ` [PATCH v6 0/5] Support " Shawn Guo
3 siblings, 0 replies; 5+ messages in thread
From: Dario Binacchi @ 2025-06-20 8:06 UTC (permalink / raw)
To: linux-kernel
Cc: michael, linux-amarula, Frank Li, Dario Binacchi, Conor Dooley,
Fabio Estevam, Krzysztof Kozlowski, Pengutronix Kernel Team,
Rob Herring, Sascha Hauer, Shawn Guo, devicetree, imx,
linux-arm-kernel
The board includes the following resources:
- 256 Mbytes NAND Flash
- 128 Mbytes DRAM DDR2
- CAN
- USB 2.0 high-speed/full-speed
- Ethernet MAC
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
---
Changes in v6:
- Add Reviewed-by tag of Frank Li
Changes in v5:
- Drop #address-cells from gpmi node
Changes in v4:
- Drop label property (deprecated) under the leds sub-nodes.
- Add microSD comment above the ssp0 node.
Changes in v3:
- Drop xceiver-supply property from can0 node.
- Rearrange the order of specific nodes and properties
alphabetically.
Changes in v2:
- Replace '-' with '@' for the pinctrl sub-nodes.
- Replace edt,edt-ft5x06 with edt,edt-ft5306.
- Drop LCD reset hog pin.
- Add correct #address-cells and #size-cells to gpmi node.
- Replace edt-ft5x06@38 with touchscreen@38.
arch/arm/boot/dts/nxp/mxs/Makefile | 1 +
.../boot/dts/nxp/mxs/imx28-amarula-rmm.dts | 300 ++++++++++++++++++
2 files changed, 301 insertions(+)
create mode 100644 arch/arm/boot/dts/nxp/mxs/imx28-amarula-rmm.dts
diff --git a/arch/arm/boot/dts/nxp/mxs/Makefile b/arch/arm/boot/dts/nxp/mxs/Makefile
index 96dd31ea19ba..d72ba702b6fa 100644
--- a/arch/arm/boot/dts/nxp/mxs/Makefile
+++ b/arch/arm/boot/dts/nxp/mxs/Makefile
@@ -5,6 +5,7 @@ dtb-$(CONFIG_ARCH_MXS) += \
imx23-sansa.dtb \
imx23-stmp378x_devb.dtb \
imx23-xfi3.dtb \
+ imx28-amarula-rmm.dtb \
imx28-apf28.dtb \
imx28-apf28dev.dtb \
imx28-apx4devkit.dtb \
diff --git a/arch/arm/boot/dts/nxp/mxs/imx28-amarula-rmm.dts b/arch/arm/boot/dts/nxp/mxs/imx28-amarula-rmm.dts
new file mode 100644
index 000000000000..af59211842fb
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/mxs/imx28-amarula-rmm.dts
@@ -0,0 +1,300 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2025 Amarula Solutions, Dario Binacchi <dario.binacchi@amarulasolutions.com>
+ */
+
+/dts-v1/;
+
+#include "imx28.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+ compatible = "amarula,imx28-rmm", "fsl,imx28";
+ model = "Amarula i.MX28 rmm";
+
+ memory@40000000 {
+ reg = <0x40000000 0x08000000>;
+ device_type = "memory";
+ };
+
+ backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm 4 5000000 0>;
+ brightness-levels = <0 255>;
+ num-interpolated-steps = <255>;
+ default-brightness-level = <255>;
+ power-supply = <®_5v>;
+ };
+
+ beeper {
+ compatible = "pwm-beeper";
+ pwms = <&pwm 7 100000 0>;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&leds_pins>;
+
+ led-0 {
+ gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+
+ led-1 {
+ gpios = <&gpio3 16 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+
+ led-2 {
+ gpios = <&gpio3 17 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+ };
+
+ reg_1v8: regulator-1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ reg_3v3: regulator-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ reg_5v: regulator-5v {
+ compatible = "regulator-fixed";
+ regulator-name = "5v";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ };
+
+ reg_fec_3v3: regulator-fec-3v3 {
+ compatible = "regulator-fixed";
+ pinctrl-names = "default";
+ pinctrl-0 = <&fec_3v3_enable_pin>;
+ regulator-name = "fec-3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpios = <&gpio3 27 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ startup-delay-us = <300000>;
+ vin-supply = <®_5v>;
+ };
+
+ reg_usb0_vbus: regulator-usb0-vbus {
+ compatible = "regulator-fixed";
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb0_vbus_enable_pin>;
+ regulator-name = "usb0_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gpio2 5 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ regulator-always-on;
+ };
+
+ reg_usb1_vbus: regulator-usb1-vbus {
+ compatible = "regulator-fixed";
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb1_vbus_enable_pin>;
+ regulator-name = "usb1_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gpio2 6 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ regulator-always-on;
+ };
+};
+
+&auart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&auart0_2pins_a>;
+ status = "okay";
+};
+
+&auart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&auart1_pins_a>;
+ status = "okay";
+};
+
+&can0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&can0_pins_a>;
+ status = "okay";
+};
+
+&duart {
+ pinctrl-names = "default";
+ pinctrl-0 = <&duart_pins_b>;
+ status = "okay";
+};
+
+&duart_pins_b {
+ fsl,voltage = <MXS_VOLTAGE_LOW>;
+};
+
+&gpmi {
+ #size-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpmi_pins_a &gpmi_status_cfg>;
+ status = "okay";
+};
+
+&i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins_a>;
+ status = "okay";
+
+ touchscreen: touchscreen@38 {
+ compatible = "edt,edt-ft5306";
+ reg = <0x38>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&edt_ft5x06_pins &edt_ft5x06_wake_pin>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <19 IRQ_TYPE_EDGE_RISING>;
+ reset-gpios = <&gpio0 21 GPIO_ACTIVE_LOW>;
+ wake-gpios = <&gpio0 18 GPIO_ACTIVE_HIGH>;
+ };
+};
+
+&lradc {
+ status = "okay";
+};
+
+&mac0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mac0_pins_a>;
+ phy-mode = "rmii";
+ phy-supply = <®_fec_3v3>;
+ phy-handle = <ðphy>;
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethphy: ethernet-phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <0>;
+ max-speed = <100>;
+ reset-gpios = <&gpio3 28 GPIO_ACTIVE_LOW>;
+ reset-assert-us = <4000>;
+ reset-deassert-us = <4000>;
+ };
+ };
+};
+
+&pinctrl {
+ pinctrl-names = "default";
+ pinctrl-0 = <&hog_pins_a>;
+
+ edt_ft5x06_pins: edt-ft5x06@0 {
+ reg = <0>;
+ fsl,pinmux-ids = <
+ MX28_PAD_GPMI_RDY1__GPIO_0_21 /* Reset */
+ MX28_PAD_GPMI_CE3N__GPIO_0_19 /* Interrupt */
+ >;
+ fsl,drive-strength = <MXS_DRIVE_4mA>;
+ fsl,pull-up = <MXS_PULL_ENABLE>;
+ fsl,voltage = <MXS_VOLTAGE_HIGH>;
+ };
+
+ edt_ft5x06_wake_pin: edt-ft5x06-wake@0 {
+ reg = <0>;
+ fsl,pinmux-ids = <MX28_PAD_GPMI_CE2N__GPIO_0_18>;
+ fsl,drive-strength = <MXS_DRIVE_16mA>;
+ fsl,pull-up = <MXS_PULL_DISABLE>;
+ fsl,voltage = <MXS_VOLTAGE_HIGH>;
+ };
+
+ fec_3v3_enable_pin: fec-3v3-enable@0 {
+ reg = <0>;
+ fsl,pinmux-ids = <MX28_PAD_SPDIF__GPIO_3_27>;
+ fsl,drive-strength = <MXS_DRIVE_4mA>;
+ fsl,pull-up = <MXS_PULL_DISABLE>;
+ fsl,voltage = <MXS_VOLTAGE_HIGH>;
+ };
+
+ hog_pins_a: hog@0 {
+ reg = <0>;
+ fsl,pinmux-ids = <
+ MX28_PAD_SSP2_SS1__GPIO_2_20 /* External power */
+ >;
+ fsl,drive-strength = <MXS_DRIVE_4mA>;
+ fsl,pull-up = <MXS_PULL_DISABLE>;
+ fsl,voltage = <MXS_VOLTAGE_HIGH>;
+ };
+
+ leds_pins: leds@0 {
+ reg = <0>;
+ fsl,pinmux-ids = <
+ MX28_PAD_SSP0_DATA7__GPIO_2_7
+ MX28_PAD_PWM0__GPIO_3_16
+ MX28_PAD_PWM1__GPIO_3_17
+ >;
+ fsl,drive-strength = <MXS_DRIVE_4mA>;
+ fsl,pull-up = <MXS_PULL_DISABLE>;
+ fsl,voltage = <MXS_VOLTAGE_HIGH>;
+ };
+
+ usb0_vbus_enable_pin: usb0-vbus-enable@0 {
+ reg = <0>;
+ fsl,pinmux-ids = <MX28_PAD_SSP0_DATA5__GPIO_2_5>;
+ fsl,drive-strength = <MXS_DRIVE_4mA>;
+ fsl,pull-up = <MXS_PULL_DISABLE>;
+ fsl,voltage = <MXS_VOLTAGE_HIGH>;
+ };
+
+ usb1_vbus_enable_pin: usb1-vbus-enable@0 {
+ reg = <0>;
+ fsl,pinmux-ids = <MX28_PAD_SSP0_DATA6__GPIO_2_6>;
+ fsl,drive-strength = <MXS_DRIVE_4mA>;
+ fsl,pull-up = <MXS_PULL_DISABLE>;
+ fsl,voltage = <MXS_VOLTAGE_HIGH>;
+ };
+};
+
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm4_pins_a &pwm7_pins_a>;
+ status = "okay";
+};
+
+/* microSD */
+&ssp0 {
+ compatible = "fsl,imx28-mmc";
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_4bit_pins_a &mmc0_sck_cfg>;
+ broken-cd;
+ bus-width = <4>;
+ status = "okay";
+};
+
+&usb0 {
+ dr_mode = "host";
+ vbus-supply = <®_usb0_vbus>;
+ status = "okay";
+};
+
+&usb1 {
+ dr_mode = "host";
+ vbus-supply = <®_usb1_vbus>;
+ status = "okay";
+};
+
+&usbphy0 {
+ status = "okay";
+};
+
+&usbphy1 {
+ status = "okay";
+};
--
2.43.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [PATCH v6 0/5] Support i.MX28 Amarula rmm board
2025-06-20 8:06 [PATCH v6 0/5] Support i.MX28 Amarula rmm board Dario Binacchi
` (2 preceding siblings ...)
2025-06-20 8:06 ` [PATCH v6 3/5] ARM: dts: mxs: support " Dario Binacchi
@ 2025-07-01 10:16 ` Shawn Guo
3 siblings, 0 replies; 5+ messages in thread
From: Shawn Guo @ 2025-07-01 10:16 UTC (permalink / raw)
To: Dario Binacchi
Cc: linux-kernel, michael, linux-amarula, Frank Li, Alexander Stein,
Ard Biesheuvel, Conor Dooley, Eric Biggers, Fabio Estevam,
Francesco Dolcini, Frieder Schrempf, Heiko Schocher,
Krzysztof Kozlowski, Marek Vasut, Markus Niebel,
Martin K. Petersen, Max Merchel, Michael Walle,
Pengutronix Kernel Team, Primoz Fiser, Rob Herring, Russell King,
Sascha Hauer, Shawn Guo, Tim Harvey, devicetree, imx,
linux-arm-kernel
On Fri, Jun 20, 2025 at 10:06:16AM +0200, Dario Binacchi wrote:
> Dario Binacchi (5):
> ARM: dts: imx28: add pwm7 muxing options
> dt-bindings: arm: fsl: add i.MX28 Amarula rmm board
> ARM: dts: mxs: support i.MX28 Amarula rmm board
> ARM: mxs_defconfig: Cleanup mxs_defconfig
> ARM: mxs_defconfig: select new drivers used by imx28-amarula-rmm
Applied all, thanks!
^ permalink raw reply [flat|nested] 5+ messages in thread