lkml.org 
[lkml]   [2016]   [Nov]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/2] ARM: bcm2835: Add names for the Raspberry Pi Zero GPIO lines
Date
This adds the GPIO names for the Raspberry Pi Zero. Since there are no
schematics for the RPi Zero use the same as the Model A+.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
arch/arm/boot/dts/bcm2835-rpi-a-plus-gpio.dtsi | 75 +++++++++++++++++++++++
arch/arm/boot/dts/bcm2835-rpi-a-plus.dts | 76 +-----------------------
arch/arm/boot/dts/bcm2835-rpi-zero.dts | 11 +---
3 files changed, 77 insertions(+), 85 deletions(-)
create mode 100644 arch/arm/boot/dts/bcm2835-rpi-a-plus-gpio.dtsi

diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus-gpio.dtsi b/arch/arm/boot/dts/bcm2835-rpi-a-plus-gpio.dtsi
new file mode 100644
index 0000000..741d64d
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus-gpio.dtsi
@@ -0,0 +1,75 @@
+&gpio {
+ /*
+ * This is based on the unreleased schematic for the Model A+.
+ *
+ * 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 = "SDA0",
+ "SCL0",
+ "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",
+ "NC", /* GPIO30 */
+ "NC", /* GPIO31 */
+ "CAM_GPIO1", /* GPIO32 */
+ "NC", /* GPIO33 */
+ "NC", /* GPIO34 */
+ "PWR_LOW_N", /* GPIO35 */
+ "NC", /* GPIO36 */
+ "NC", /* GPIO37 */
+ "USB_LIMIT", /* GPIO38 */
+ "NC", /* GPIO39 */
+ "PWM0_OUT", /* GPIO40 */
+ "CAM_GPIO0", /* GPIO41 */
+ "NC", /* GPIO42 */
+ "NC", /* GPIO43 */
+ "NC", /* GPIO44 */
+ "PWM1_OUT", /* GPIO45 */
+ "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 */
+ i2s_alt0: i2s_alt0 {
+ brcm,pins = <18 19 20 21>;
+ brcm,function = <BCM2835_FSEL_ALT0>;
+ };
+};
+
diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
index d070454..9b665da 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
@@ -2,6 +2,7 @@
#include "bcm2835.dtsi"
#include "bcm2835-rpi.dtsi"
#include "bcm283x-rpi-usb-host.dtsi"
+#include "bcm2835-rpi-a-plus-gpio.dtsi"

/ {
compatible = "raspberrypi,model-a-plus", "brcm,bcm2835";
@@ -21,81 +22,6 @@
};
};

-&gpio {
- /*
- * This is based on the unreleased schematic for the Model A+.
- *
- * 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 = "SDA0",
- "SCL0",
- "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",
- "NC", /* GPIO30 */
- "NC", /* GPIO31 */
- "CAM_GPIO1", /* GPIO32 */
- "NC", /* GPIO33 */
- "NC", /* GPIO34 */
- "PWR_LOW_N", /* GPIO35 */
- "NC", /* GPIO36 */
- "NC", /* GPIO37 */
- "USB_LIMIT", /* GPIO38 */
- "NC", /* GPIO39 */
- "PWM0_OUT", /* GPIO40 */
- "CAM_GPIO0", /* GPIO41 */
- "NC", /* GPIO42 */
- "NC", /* GPIO43 */
- "NC", /* GPIO44 */
- "PWM1_OUT", /* GPIO45 */
- "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 */
- i2s_alt0: i2s_alt0 {
- brcm,pins = <18 19 20 21>;
- brcm,function = <BCM2835_FSEL_ALT0>;
- };
-};
-
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero.dts b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
index 7c1c180..0154ae0 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-zero.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
@@ -13,6 +13,7 @@
#include "bcm2835.dtsi"
#include "bcm2835-rpi.dtsi"
#include "bcm283x-rpi-usb-host.dtsi"
+#include "bcm2835-rpi-a-plus-gpio.dtsi"

/ {
compatible = "raspberrypi,model-zero", "brcm,bcm2835";
@@ -25,16 +26,6 @@
};
};

-&gpio {
- pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
-
- /* I2S interface */
- i2s_alt0: i2s_alt0 {
- brcm,pins = <18 19 20 21>;
- brcm,function = <BCM2835_FSEL_ALT0>;
- };
-};
-
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
};
--
1.7.9.5
\
 
 \ /
  Last update: 2016-11-13 19:14    [W:0.050 / U:0.524 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site