powerpc/83xx: Add support for MCU microcontroller in .dts files

MCU is an external Freescale MC9S08QG8 microcontroller, mainly used to
provide soft power-off function, but also exports two GPIOs (wired to
the LEDs and also available from the external headers).

Added the MCU on mpc8349emitx, mpc837xrdb and mpc8315erdb boards.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/powerpc/boot/dts/mpc8315erdb.dts b/arch/powerpc/boot/dts/mpc8315erdb.dts
index 7449e54c1a90..6b850670de1d 100644
--- a/arch/powerpc/boot/dts/mpc8315erdb.dts
+++ b/arch/powerpc/boot/dts/mpc8315erdb.dts
@@ -121,6 +121,14 @@
                                 compatible = "dallas,ds1339";
                                 reg = <0x68>;
                         };
+
+                        mcu_pio: mcu@a {
+                                #gpio-cells = <2>;
+                                compatible = "fsl,mc9s08qg8-mpc8315erdb",
+                                             "fsl,mcu-mpc8349emitx";
+                                reg = <0x0a>;
+                                gpio-controller;
+                        };
                 };
 
                 spi@7000 {