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From: Stefan Wahren <stefan.wahren@i2se.com>
To: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
 Florian Fainelli <f.fainelli@gmail.com>, Ray Jui <rjui@broadcom.com>,
 Scott Branden <sbranden@broadcom.com>, Eric Anholt <eric@anholt.net>
Subject: [PATCH 1/6] ARM: dts: bcm283x: Fix DTC warning for memory node
Date: Sat, 12 Jan 2019 13:43:23 +0100
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Cc: Gottfried Haider <gottfried.haider@gmail.com>, devicetree@vger.kernel.org,
 Stefan Wahren <stefan.wahren@i2se.com>, Phil Elwell <phil@raspberrypi.org>,
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Compiling the bcm283x DTS with W=1 leads to the following warning:

Warning (unit_address_vs_reg): /memory: node has a reg or ranges property,
but no unit name

Fix this by adding the unit address.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
 arch/arm/boot/dts/bcm2835-rpi.dtsi         | 2 +-
 arch/arm/boot/dts/bcm2836-rpi-2-b.dts      | 2 +-
 arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts | 2 +-
 arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts | 2 +-
 arch/arm/boot/dts/bcm2837-rpi-3-b.dts      | 2 +-
 arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi     | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index c6e2b23..e490f2a 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -1,7 +1,7 @@
 #include <dt-bindings/power/raspberrypi-power.h>
 
 / {
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0 0x10000000>;
 	};
diff --git a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
index ac4408b..871fc4a 100644
--- a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
+++ b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
@@ -9,7 +9,7 @@
 	compatible = "raspberrypi,2-model-b", "brcm,bcm2836";
 	model = "Raspberry Pi 2 Model B";
 
-	memory {
+	memory@0 {
 		reg = <0 0x40000000>;
 	};
 
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
index e9fadd3..7f4437a 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
@@ -13,7 +13,7 @@
 		stdout-path = "serial1:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		reg = <0 0x20000000>;
 	};
 
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
index 42bb090..7d65013 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
@@ -14,7 +14,7 @@
 		stdout-path = "serial1:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		reg = <0 0x40000000>;
 	};
 
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
index 0c155dd..9abb9c5 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
@@ -14,7 +14,7 @@
 		stdout-path = "serial1:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		reg = <0 0x40000000>;
 	};
 
diff --git a/arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi b/arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi
index 4a89a18..81399b2 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi
+++ b/arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi
@@ -4,7 +4,7 @@
 #include "bcm2836-rpi.dtsi"
 
 / {
-	memory {
+	memory@0 {
 		reg = <0 0x40000000>;
 	};
 

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From: Stefan Wahren <stefan.wahren@i2se.com>
To: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
 Florian Fainelli <f.fainelli@gmail.com>, Ray Jui <rjui@broadcom.com>,
 Scott Branden <sbranden@broadcom.com>, Eric Anholt <eric@anholt.net>
Subject: [PATCH 2/6] ARM: dts: bcm2835-rpi: Drop unnecessary
 #address-cells/#size-cells
Date: Sat, 12 Jan 2019 13:43:24 +0100
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Cc: Gottfried Haider <gottfried.haider@gmail.com>, devicetree@vger.kernel.org,
 Stefan Wahren <stefan.wahren@i2se.com>, Phil Elwell <phil@raspberrypi.org>,
 bcm-kernel-feedback-list@broadcom.com, Peter Robinson <pbrobinson@gmail.com>,
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Compiling the bcm2835-rpi.dtsi with W=1 leads to the following warning:

Warning (avoid_unnecessary_addr_size): /soc/firmware: unnecessary
 #address-cells/#size-cells without "ranges" or child "reg" property

Fix this by removing these unnecessary properties.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
 arch/arm/boot/dts/bcm2835-rpi.dtsi | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index e490f2a..715d50c 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -19,8 +19,6 @@
 	soc {
 		firmware: firmware {
 			compatible = "raspberrypi,bcm2835-firmware", "simple-bus";
-			#address-cells = <0>;
-			#size-cells = <0>;
 			mboxes = <&mailbox>;
 		};
 

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From: Stefan Wahren <stefan.wahren@i2se.com>
To: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
 Florian Fainelli <f.fainelli@gmail.com>, Ray Jui <rjui@broadcom.com>,
 Scott Branden <sbranden@broadcom.com>, Eric Anholt <eric@anholt.net>
Subject: [PATCH 3/6] ARM: dts: bcm2835: Fix labels for GPIO 0,1
Date: Sat, 12 Jan 2019 13:43:25 +0100
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Cc: Gottfried Haider <gottfried.haider@gmail.com>, devicetree@vger.kernel.org,
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According to the schematics for all RPis with a 40 pin header,
the GPIOs 0 and 1 are labeled as ID_SD and ID_SC. In order to
clarify that is a I2C bus, append the third letter.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
 arch/arm/boot/dts/bcm2835-rpi-a-plus.dts | 4 ++--
 arch/arm/boot/dts/bcm2835-rpi-b-plus.dts | 4 ++--
 arch/arm/boot/dts/bcm2835-rpi-zero-w.dts | 4 ++--
 arch/arm/boot/dts/bcm2835-rpi-zero.dts   | 4 ++--
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
index 2cd9c5e..db8a601 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
@@ -31,8 +31,8 @@
 	 * "FOO" = GPIO line named "FOO" on the schematic
 	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
 	 */
-	gpio-line-names = "SDA0",
-			  "SCL0",
+	gpio-line-names = "ID_SDA",
+			  "ID_SCL",
 			  "SDA1",
 			  "SCL1",
 			  "GPIO_GCLK",
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
index cfbdaac..1e40d67 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
@@ -33,8 +33,8 @@
 	 * "FOO" = GPIO line named "FOO" on the schematic
 	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
 	 */
-	gpio-line-names = "SDA0",
-			  "SCL0",
+	gpio-line-names = "ID_SDA",
+			  "ID_SCL",
 			  "SDA1",
 			  "SCL1",
 			  "GPIO_GCLK",
diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
index 644d907..5765d34 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
@@ -40,8 +40,8 @@
 	 * "FOO" = GPIO line named "FOO" on the schematic
 	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
 	 */
-	gpio-line-names = "GPIO0",
-			  "GPIO1",
+	gpio-line-names = "ID_SDA",
+			  "ID_SCL",
 			  "SDA1",
 			  "SCL1",
 			  "GPIO_GCLK",
diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero.dts b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
index 00323ba..3b35a8a 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-zero.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
@@ -28,8 +28,8 @@
 	 * "FOO" = GPIO line named "FOO" on the schematic
 	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
 	 */
-	gpio-line-names = "SDA0",
-			  "SCL0",
+	gpio-line-names = "ID_SDA",
+			  "ID_SCL",
 			  "SDA1",
 			  "SCL1",
 			  "GPIO_GCLK",

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From: Stefan Wahren <stefan.wahren@i2se.com>
To: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
 Florian Fainelli <f.fainelli@gmail.com>, Ray Jui <rjui@broadcom.com>,
 Scott Branden <sbranden@broadcom.com>, Eric Anholt <eric@anholt.net>
Subject: [PATCH 4/6] ARM: dts: bcm2837-rpi-3-b: Use consistent label for HDMI
 hotplug
Date: Sat, 12 Jan 2019 13:43:26 +0100
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Cc: Gottfried Haider <gottfried.haider@gmail.com>, devicetree@vger.kernel.org,
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This make the GPIO label for HDMI hotplug more consistent to the other
boards.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
 arch/arm/boot/dts/bcm2837-rpi-3-b.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
index 9abb9c5..31b1c03 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
@@ -39,7 +39,7 @@
 				  "WL_ON",
 				  "STATUS_LED",
 				  "LAN_RUN",
-				  "HPD_N",
+				  "HDMI_HPD_N",
 				  "CAM_GPIO0",
 				  "CAM_GPIO1",
 				  "PWR_LOW_N";

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From: Stefan Wahren <stefan.wahren@i2se.com>
To: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
 Florian Fainelli <f.fainelli@gmail.com>, Ray Jui <rjui@broadcom.com>,
 Scott Branden <sbranden@broadcom.com>, Eric Anholt <eric@anholt.net>
Subject: [PATCH 5/6] ARM: dts: bcm2837-rpi-3-b-plus: Clarify label for
 STATUS_LED
Date: Sat, 12 Jan 2019 13:43:27 +0100
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Cc: Gottfried Haider <gottfried.haider@gmail.com>, devicetree@vger.kernel.org,
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The RPI 3 B+ provides control to both LEDs (PWR and ACT). So append
the first letter of the LED color (like in the schematics) in order
to clarify this.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
 arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
index 7d65013..d3ec6cd 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
@@ -42,7 +42,7 @@
 		#gpio-cells = <2>;
 		gpio-line-names = "BT_ON",
 				  "WL_ON",
-				  "STATUS_LED",
+				  "STATUS_LED_R",
 				  "LAN_RUN",
 				  "",
 				  "CAM_GPIO0",

From patchwork Sat Jan 12 12:43:28 2019
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From: Stefan Wahren <stefan.wahren@i2se.com>
To: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
 Florian Fainelli <f.fainelli@gmail.com>, Ray Jui <rjui@broadcom.com>,
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Subject: [PATCH 6/6] ARM: dts: bcm283x: Add missing GPIO line names
Date: Sat, 12 Jan 2019 13:43:28 +0100
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The GPIO sysfs is deprecated and disabled in the defconfig files.
So in order to motivate the usage of the new GPIO character device API
add the missing GPIO line names for Raspberry Pi 2 and 3. In the lack
of full schematics i would leave all undocumented pins as unnamed.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
 arch/arm/boot/dts/bcm2836-rpi-2-b.dts      | 66 ++++++++++++++++++++++++++++
 arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts | 70 ++++++++++++++++++++++++++++++
 arch/arm/boot/dts/bcm2837-rpi-3-b.dts      | 70 ++++++++++++++++++++++++++++++
 3 files changed, 206 insertions(+)

diff --git a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
index 871fc4a..7b4e651 100644
--- a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
+++ b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
@@ -28,6 +28,72 @@
 };
 
 &gpio {
+	/*
+	 * Taken from rpi_SCH_2b_1p2_reduced.pdf and
+	 * the official GPU firmware DT blob.
+	 *
+	 * Legend:
+	 * "NC" = not connected (no rail from the SoC)
+	 * "FOO" = GPIO line named "FOO" on the schematic
+	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
+	 */
+	gpio-line-names = "ID_SDA",
+			  "ID_SCL",
+			  "SDA1",
+			  "SCL1",
+			  "GPIO_GCLK",
+			  "GPIO5",
+			  "GPIO6",
+			  "SPI_CE1_N",
+			  "SPI_CE0_N",
+			  "SPI_MISO",
+			  "SPI_MOSI",
+			  "SPI_SCLK",
+			  "GPIO12",
+			  "GPIO13",
+			  /* Serial port */
+			  "TXD0",
+			  "RXD0",
+			  "GPIO16",
+			  "GPIO17",
+			  "GPIO18",
+			  "GPIO19",
+			  "GPIO20",
+			  "GPIO21",
+			  "GPIO22",
+			  "GPIO23",
+			  "GPIO24",
+			  "GPIO25",
+			  "GPIO26",
+			  "GPIO27",
+			  "SDA0",
+			  "SCL0",
+			  "", /* GPIO30 */
+			  "LAN_RUN",
+			  "CAM_GPIO1",
+			  "", /* GPIO33 */
+			  "", /* GPIO34 */
+			  "PWR_LOW_N",
+			  "", /* GPIO36 */
+			  "", /* GPIO37 */
+			  "USB_LIMIT",
+			  "", /* GPIO39 */
+			  "PWM0_OUT",
+			  "CAM_GPIO0",
+			  "SMPS_SCL",
+			  "SMPS_SDA",
+			  "ETHCLK",
+			  "PWM1_OUT",
+			  "HDMI_HPD_N",
+			  "STATUS_LED",
+			  /* Used by SD Card */
+			  "SD_CLK_R",
+			  "SD_CMD_R",
+			  "SD_DATA0_R",
+			  "SD_DATA1_R",
+			  "SD_DATA2_R",
+			  "SD_DATA3_R";
+
 	pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
 
 	/* I2S interface */
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
index d3ec6cd..c6fa34c 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
@@ -52,6 +52,76 @@
 	};
 };
 
+&gpio {
+	/*
+	 * Taken from rpi_SCH_3bplus_1p0_reduced.pdf and
+	 * the official GPU firmware DT blob.
+	 *
+	 * Legend:
+	 * "NC" = not connected (no rail from the SoC)
+	 * "FOO" = GPIO line named "FOO" on the schematic
+	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
+	 */
+	gpio-line-names = "ID_SDA",
+			  "ID_SCL",
+			  "SDA1",
+			  "SCL1",
+			  "GPIO_GCLK",
+			  "GPIO5",
+			  "GPIO6",
+			  "SPI_CE1_N",
+			  "SPI_CE0_N",
+			  "SPI_MISO",
+			  "SPI_MOSI",
+			  "SPI_SCLK",
+			  "GPIO12",
+			  "GPIO13",
+			  /* Serial port */
+			  "TXD1",
+			  "RXD1",
+			  "GPIO16",
+			  "GPIO17",
+			  "GPIO18",
+			  "GPIO19",
+			  "GPIO20",
+			  "GPIO21",
+			  "GPIO22",
+			  "GPIO23",
+			  "GPIO24",
+			  "GPIO25",
+			  "GPIO26",
+			  "GPIO27",
+			  "HDMI_HPD_N",
+			  "STATUS_LED_G",
+			  /* Used by BT module */
+			  "CTS0",
+			  "RTS0",
+			  "TXD0",
+			  "RXD0",
+			  /* Used by Wifi */
+			  "SD1_CLK",
+			  "SD1_CMD",
+			  "SD1_DATA0",
+			  "SD1_DATA1",
+			  "SD1_DATA2",
+			  "SD1_DATA3",
+			  "PWM0_OUT",
+			  "PWM1_OUT",
+			  "ETHCLK",
+			  "WIFI_CLK",
+			  "SDA0",
+			  "SCL0",
+			  "SMPS_SCL",
+			  "SMPS_SDA",
+			  /* Used by SD Card */
+			  "SD_CLK_R",
+			  "SD_CMD_R",
+			  "SD_DATA0_R",
+			  "SD_DATA1_R",
+			  "SD_DATA2_R",
+			  "SD_DATA3_R";
+};
+
 &hdmi {
 	hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
 };
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
index 31b1c03..ce71f57 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
@@ -47,6 +47,76 @@
 	};
 };
 
+&gpio {
+	/*
+	 * Taken from rpi_SCH_3b_1p2_reduced.pdf and
+	 * the official GPU firmware DT blob.
+	 *
+	 * Legend:
+	 * "NC" = not connected (no rail from the SoC)
+	 * "FOO" = GPIO line named "FOO" on the schematic
+	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
+	 */
+	gpio-line-names = "ID_SDA",
+			  "ID_SCL",
+			  "SDA1",
+			  "SCL1",
+			  "GPIO_GCLK",
+			  "GPIO5",
+			  "GPIO6",
+			  "SPI_CE1_N",
+			  "SPI_CE0_N",
+			  "SPI_MISO",
+			  "SPI_MOSI",
+			  "SPI_SCLK",
+			  "GPIO12",
+			  "GPIO13",
+			  /* Serial port */
+			  "TXD1",
+			  "RXD1",
+			  "GPIO16",
+			  "GPIO17",
+			  "GPIO18",
+			  "GPIO19",
+			  "GPIO20",
+			  "GPIO21",
+			  "GPIO22",
+			  "GPIO23",
+			  "GPIO24",
+			  "GPIO25",
+			  "GPIO26",
+			  "GPIO27",
+			  "", /* GPIO 28 */
+			  "LAN_RUN_BOOT",
+			  /* Used by BT module */
+			  "CTS0",
+			  "RTS0",
+			  "TXD0",
+			  "RXD0",
+			  /* Used by Wifi */
+			  "SD1_CLK",
+			  "SD1_CMD",
+			  "SD1_DATA0",
+			  "SD1_DATA1",
+			  "SD1_DATA2",
+			  "SD1_DATA3",
+			  "PWM0_OUT",
+			  "PWM1_OUT",
+			  "ETHCLK",
+			  "WIFI_CLK",
+			  "SDA0",
+			  "SCL0",
+			  "SMPS_SCL",
+			  "SMPS_SDA",
+			  /* Used by SD Card */
+			  "SD_CLK_R",
+			  "SD_CMD_R",
+			  "SD_DATA0_R",
+			  "SD_DATA1_R",
+			  "SD_DATA2_R",
+			  "SD_DATA3_R";
+};
+
 &pwm {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;