Hi,
On Sun, Jun 09, 2013 at 03:59:44AM +0200, Pavel Machek wrote:
> I'd like to convert Nokia N900 to device tree.
>
> Unfortunately, serial port is not easily available (very special cable
> would be needed, does someone know where to get one?) and I don't have
> BDI (and very special cable would be needed, too).
>
> So I tried doing very small first step, hoping that I get booting
> system... obviously I did not.
The following works for me, it's enough to boot and get the USB networking
working. After that I can connect to the device with ssh. I don't use
serial either, I just have initramfs with busybox+dropbear with hardcoded
interface setup.
---8<---
/dts-v1/;
/include/ "omap34xx.dtsi"
/ {
model = "Nokia N900";
compatible = "nokia,omap3-n900", "ti,omap3";
cpus {
cpu@0 {
cpu0-supply = <&vcc>;
};
};
memory {
device_type = "memory";
reg = <0x80000000 0x10000000>; /* 256 MB */
};
};
&i2c1 {
clock-frequency = <2200000>;
twl: twl@48 {
reg = <0x48>;
interrupts = <7>; /* SYS_NIRQ cascaded to intc */
interrupt-parent = <&intc>;
};
};
/include/ "twl4030.dtsi"
&twl_gpio {
ti,pullups = <0x0>;
ti,pulldowns = <0x03ff3f>; /* BIT(0..5) | BIT(8..17) */
};
&i2c2 {
clock-frequency = <400000>;
};
&i2c3 {
clock-frequency = <100000>;
};
&mmc1 {
status = "disabled";
};
&mmc2 {
status = "disabled";
};
&mmc3 {
status = "disabled";
};
&usb_otg_hs {
interface-type = <0>;
usb-phy = <&usb2_phy>;
mode = <2>;
power = <50>;
};
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