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| author | Stefan Wahren <stefan.wahren@i2se.com> | 2019-01-01 18:29:08 +0100 |
|---|---|---|
| committer | Stefan Wahren <stefan.wahren@i2se.com> | 2019-02-01 11:56:21 +0100 |
| commit | 0b559d5c5baf2577bc23cc9e323e3dad45fef99d (patch) | |
| tree | e314bf707d15289a88325a97b20ed8586c3de660 /arch/arm/boot/dts/bcm2836-rpi-2-b.dts | |
| parent | ARM: dts: bcm2837-rpi-3-b-plus: Clarify label for STATUS_LED (diff) | |
| download | linux-0b559d5c5baf2577bc23cc9e323e3dad45fef99d.tar.xz linux-0b559d5c5baf2577bc23cc9e323e3dad45fef99d.zip | |
ARM: dts: bcm283x: Add missing GPIO line names
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>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'arch/arm/boot/dts/bcm2836-rpi-2-b.dts')
| -rw-r--r-- | arch/arm/boot/dts/bcm2836-rpi-2-b.dts | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts index 871fc4a558cf..7b4e651bafdd 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 */ |