Messages in this thread Patch in this message | | | From | Stefan Wahren <> | Subject | [PATCH V2 2/2] ARM: bcm2835: Add names for the RPi Zero GPIO lines | Date | Wed, 16 Nov 2016 17:52:07 +0000 |
| |
This adds the GPIO names for the Raspberry Pi Zero. The GPIO lines of the RPi Zero are almost identical to the Model A+ except:
* GPIO 35, 38, 40 and 45 are not connected * Status LED is active low
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> --- arch/arm/boot/dts/bcm2835-rpi-zero.dts | 65 ++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+)
diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero.dts b/arch/arm/boot/dts/bcm2835-rpi-zero.dts index 7c1c180..fa7997a 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-zero.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts @@ -26,6 +26,71 @@ }; &gpio { + /* + * This is based on 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 = "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 */ + "NC", /* GPIO35 */ + "NC", /* GPIO36 */ + "NC", /* GPIO37 */ + "NC", /* GPIO38 */ + "NC", /* GPIO39 */ + "NC", /* GPIO40 */ + "CAM_GPIO0", /* GPIO41 */ + "NC", /* GPIO42 */ + "NC", /* GPIO43 */ + "NC", /* GPIO44 */ + "NC", /* GPIO45 */ + "HDMI_HPD_N", + "STATUS_LED_N", + /* 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 */ -- 1.7.9.5
| |