ARM: at91: add Shutdown Controller (SHDWC) DT support

Use a string to specific the wakeup mode to make it more readable.

Add the Real-time Clock Wake-up support too for sam9g45 and sam9x5.
Add AT91_SHDW_CPTWK0_MAX to specific the Max of the Wakeup Counter.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>

3 files changed, 15 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/at91sam9g20.dtsi b/arch/arm/boot/dts/at91sam9g20.dtsi
index 0a1df8d9bfb6..9a0647bb387f 100644
--- a/arch/arm/boot/dts/at91sam9g20.dtsi
+++ b/arch/arm/boot/dts/at91sam9g20.dtsi
@@ -74,6 +74,11 @@
                                 reg = <0xfffffd00 0x10>;
                         };
 
+                        shdwc@fffffd10 {
+                                compatible = "atmel,at91sam9260-shdwc";
+                                reg = <0xfffffd10 0x10>;
+                        };
+
                         pit: timer@fffffd30 {
                                 compatible = "atmel,at91sam9260-pit";
                                 reg = <0xfffffd30 0xf>;
diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
index 587a1913c062..8908f078c307 100644
--- a/arch/arm/boot/dts/at91sam9g45.dtsi
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi
@@ -83,6 +83,11 @@
                         };
 
 
+                        shdwc@fffffd10 {
+                                compatible = "atmel,at91sam9rl-shdwc";
+                                reg = <0xfffffd10 0x10>;
+                        };
+
                         tcb0: timer@fff7c000 {
                                 compatible = "atmel,at91rm9200-tcb";
                                 reg = <0xfff7c000 0x100>;
diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index 73c46e3dffab..20155ccbbe14 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -73,6 +73,11 @@
                                 reg = <0xfffffe00 0x10>;
                         };
 
+                        shdwc@fffffe10 {
+                                compatible = "atmel,at91sam9x5-shdwc";
+                                reg = <0xfffffe10 0x10>;
+                        };
+
                         pit: timer@fffffe30 {
                                 compatible = "atmel,at91sam9260-pit";
                                 reg = <0xfffffe30 0xf>;