Changes between Version 3 and Version 4 of FlattenedDeviceTree

Timestamp:

Oct 28, 2009, 11:16:27 AM (15 years ago)

Author:

Nicolas Pouillon

Comment:

--

FlattenedDeviceTree

@@ -73 +73 @@
    Is the irq number in `icudev`.
 
+Example:
+{{{
+icu@0 {
+    device_type = "soclib:icu";
+        input_count = <2>;
+        reg = <0x20600000 0x20>;
+        icudev = &{/cpus/Mips,32@0};
+        irq = <0>;
+};
+
+tty@0 {
+        device_type = "soclib:tty";
+        tty_count = <1>;
+        reg = <0x90600000 0x10>;
+        icudev = &{/icu@0};
+        irq = <1>;
+};
+}}}
+
+Here the ICU device for `/tty@0` is `/icu@0` (device at address 0x20600000), which in turn references `/cpus/Mips,32@0` as its ICU device.
+
 == Parameter structure construction for calling `_init` functions ==
 
@@ -118 +139 @@
 
 {{{
-        tty@0 {
-            device_type = "soclib:tty";
-                tty_count = <1>;
-                reg = <0x90600000 0x10>;
-                icudev = &{/icu@0};
-                irq = <1>;
-        };
+tty@0 {
+        device_type = "soclib:tty";
+        tty_count = <1>;
+        reg = <0x90600000 0x10>;
+        icudev = &{/icu@0};
+        irq = <1>;
+};
 }}}
 
 In turn, the SoCLib tty driver declares itself (in source:trunk/mutekh/drivers/device/char/tty-soclib/tty-soclib.c#L146) as:
+
+Note there is no parameter structure definition, so the two last arguments of `DEVENUM_FDTNAME_ENTRY` are 0.
 
 {{{