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5631e7f4e2
The BCM2835 SoC contains a DWC2 USB controller. Add this to the DT. Set up the pin controller to fully enable the USB controller on the Raspberry Pi. The GPIO setup works because the default output value for GPIO 6 (LAN_RUN/n_reset) just happens to be 1, which enables the USB/LAN chip. Note that you'll need a U-Boot which enables power to the USB controller; search for U-Boot patch "ARM: rpi_b: power on SDHCI and USB HW modules". Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Olof Johansson <olof@lixom.net>
144 lines
3 KiB
Text
144 lines
3 KiB
Text
/include/ "skeleton.dtsi"
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/ {
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compatible = "brcm,bcm2835";
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model = "BCM2835";
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interrupt-parent = <&intc>;
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chosen {
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bootargs = "earlyprintk console=ttyAMA0";
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};
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soc {
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compatible = "simple-bus";
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0x7e000000 0x20000000 0x02000000>;
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timer {
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compatible = "brcm,bcm2835-system-timer";
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reg = <0x7e003000 0x1000>;
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interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
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clock-frequency = <1000000>;
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};
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intc: interrupt-controller {
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compatible = "brcm,bcm2835-armctrl-ic";
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reg = <0x7e00b200 0x200>;
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interrupt-controller;
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#interrupt-cells = <2>;
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};
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watchdog {
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compatible = "brcm,bcm2835-pm-wdt";
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reg = <0x7e100000 0x28>;
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};
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rng {
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compatible = "brcm,bcm2835-rng";
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reg = <0x7e104000 0x10>;
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};
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uart@20201000 {
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compatible = "brcm,bcm2835-pl011", "arm,pl011", "arm,primecell";
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reg = <0x7e201000 0x1000>;
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interrupts = <2 25>;
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clock-frequency = <3000000>;
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arm,primecell-periphid = <0x00241011>;
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};
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gpio: gpio {
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compatible = "brcm,bcm2835-gpio";
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reg = <0x7e200000 0xb4>;
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/*
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* The GPIO IP block is designed for 3 banks of GPIOs.
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* Each bank has a GPIO interrupt for itself.
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* There is an overall "any bank" interrupt.
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* In order, these are GIC interrupts 17, 18, 19, 20.
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* Since the BCM2835 only has 2 banks, the 2nd bank
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* interrupt output appears to be mirrored onto the
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* 3rd bank's interrupt signal.
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* So, a bank0 interrupt shows up on 17, 20, and
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* a bank1 interrupt shows up on 18, 19, 20!
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*/
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interrupts = <2 17>, <2 18>, <2 19>, <2 20>;
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gpio-controller;
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#gpio-cells = <2>;
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interrupt-controller;
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#interrupt-cells = <2>;
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};
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spi: spi@20204000 {
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compatible = "brcm,bcm2835-spi";
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reg = <0x7e204000 0x1000>;
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interrupts = <2 22>;
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clocks = <&clk_spi>;
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#address-cells = <1>;
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#size-cells = <0>;
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status = "disabled";
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};
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i2c0: i2c@20205000 {
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compatible = "brcm,bcm2835-i2c";
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reg = <0x7e205000 0x1000>;
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interrupts = <2 21>;
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clocks = <&clk_i2c>;
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#address-cells = <1>;
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#size-cells = <0>;
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status = "disabled";
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};
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i2c1: i2c@20804000 {
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compatible = "brcm,bcm2835-i2c";
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reg = <0x7e804000 0x1000>;
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interrupts = <2 21>;
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clocks = <&clk_i2c>;
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#address-cells = <1>;
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#size-cells = <0>;
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status = "disabled";
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};
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sdhci: sdhci {
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compatible = "brcm,bcm2835-sdhci";
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reg = <0x7e300000 0x100>;
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interrupts = <2 30>;
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clocks = <&clk_mmc>;
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status = "disabled";
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};
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usb {
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compatible = "brcm,bcm2835-usb";
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reg = <0x7e980000 0x10000>;
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interrupts = <1 9>;
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};
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};
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clocks {
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compatible = "simple-bus";
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#address-cells = <1>;
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#size-cells = <0>;
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clk_mmc: mmc {
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compatible = "fixed-clock";
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reg = <0>;
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#clock-cells = <0>;
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clock-frequency = <100000000>;
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};
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clk_i2c: i2c {
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compatible = "fixed-clock";
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reg = <1>;
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#clock-cells = <0>;
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clock-frequency = <250000000>;
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};
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clk_spi: spi {
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compatible = "fixed-clock";
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reg = <2>;
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#clock-cells = <0>;
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clock-frequency = <250000000>;
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};
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};
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};
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