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ARM: dts: Create bcm2708-rpi-b-rev1.dts
The first revision of the Pi Model B used I2C0 to address the camera and I2C0 was available for user applications on the 26-pin header. The second revision switched the roles, kept I2C0 on the 26-pin header and added I2C1 on a new 8-way header (P5). Up to now, downstream DTS has used a single file for both revisions of the board, with a small amount of patching from the firmware. With the introduction of an I2C mux to share I2C0 between the camera/display connectors and the IDC headers, the difference between the two versions becomes too great to comfortably manage with tweaking, hence this split. Upstream DTS files already have bcm2835-rpi-b.dts and bcm2835-rpi-b-rev2.dts, but for backwards compatibility the new file is being added as bcm2708-rpi-b-rev1.dts, rather than renaming the old shared version to bcm2708-rpi-b-rev2.dts. Signed-off-by: Phil Elwell <[email protected]>
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/dts-v1/; | ||
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#include "bcm2708.dtsi" | ||
#include "bcm2708-rpi.dtsi" | ||
#include "bcm283x-rpi-smsc9512.dtsi" | ||
#include "bcm283x-rpi-csi1-2lane.dtsi" | ||
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/ { | ||
compatible = "raspberrypi,model-b", "brcm,bcm2835"; | ||
model = "Raspberry Pi Model B"; | ||
}; | ||
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&gpio { | ||
spi0_pins: spi0_pins { | ||
brcm,pins = <9 10 11>; | ||
brcm,function = <4>; /* alt0 */ | ||
}; | ||
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spi0_cs_pins: spi0_cs_pins { | ||
brcm,pins = <8 7>; | ||
brcm,function = <1>; /* output */ | ||
}; | ||
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i2c0_pins: i2c0 { | ||
brcm,pins = <0 1>; | ||
brcm,function = <4>; | ||
}; | ||
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i2c1_pins: i2c1 { | ||
brcm,pins = <2 3>; | ||
brcm,function = <4>; | ||
}; | ||
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i2s_pins: i2s { | ||
brcm,pins = <28 29 30 31>; | ||
brcm,function = <6>; /* alt2 */ | ||
}; | ||
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audio_pins: audio_pins { | ||
brcm,pins = <40 45>; | ||
brcm,function = <4>; | ||
}; | ||
}; | ||
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&uart0 { | ||
status = "okay"; | ||
}; | ||
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&spi0 { | ||
pinctrl-names = "default"; | ||
pinctrl-0 = <&spi0_pins &spi0_cs_pins>; | ||
cs-gpios = <&gpio 8 1>, <&gpio 7 1>; | ||
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spidev0: spidev@0{ | ||
compatible = "spidev"; | ||
reg = <0>; /* CE0 */ | ||
#address-cells = <1>; | ||
#size-cells = <0>; | ||
spi-max-frequency = <125000000>; | ||
}; | ||
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spidev1: spidev@1{ | ||
compatible = "spidev"; | ||
reg = <1>; /* CE1 */ | ||
#address-cells = <1>; | ||
#size-cells = <0>; | ||
spi-max-frequency = <125000000>; | ||
}; | ||
}; | ||
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/delete-node/ &i2c0mux; | ||
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i2c0: &i2c0if { | ||
pinctrl-names = "default"; | ||
pinctrl-0 = <&i2c0_pins>; | ||
clock-frequency = <100000>; | ||
}; | ||
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i2c_csi_dsi: &i2c1 { | ||
pinctrl-names = "default"; | ||
pinctrl-0 = <&i2c1_pins>; | ||
clock-frequency = <100000>; | ||
}; | ||
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/ { | ||
aliases { | ||
i2c0 = &i2c0; | ||
}; | ||
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__overrides__ { | ||
i2c0 = <&i2c0>, "status"; | ||
}; | ||
}; | ||
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&i2c2 { | ||
clock-frequency = <100000>; | ||
}; | ||
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&i2s { | ||
pinctrl-names = "default"; | ||
pinctrl-0 = <&i2s_pins>; | ||
}; | ||
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&leds { | ||
act_led: act { | ||
label = "led0"; | ||
linux,default-trigger = "mmc0"; | ||
gpios = <&gpio 16 1>; | ||
}; | ||
}; | ||
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&hdmi { | ||
hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>; | ||
}; | ||
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&audio { | ||
pinctrl-names = "default"; | ||
pinctrl-0 = <&audio_pins>; | ||
}; | ||
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/ { | ||
__overrides__ { | ||
act_led_gpio = <&act_led>,"gpios:4"; | ||
act_led_activelow = <&act_led>,"gpios:8"; | ||
act_led_trigger = <&act_led>,"linux,default-trigger"; | ||
}; | ||
}; |
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status = "disabled"; | ||
}; | ||
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&i2c0mux { | ||
status = "disabled"; | ||
}; | ||
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&i2c1 { | ||
status = "disabled"; | ||
}; | ||
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