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 <[email protected]> --- 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
