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-rw-r--r--Documentation/devicetree/bindings/arm/atmel-at91.txt114
1 files changed, 112 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt
index 7fd64ec9ee1d..91cb8e4f2a4f 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt
@@ -41,6 +41,40 @@ compatible: must be one of:
- "atmel,sama5d43"
- "atmel,sama5d44"
+ * "atmel,samv7" for MCUs using a Cortex-M7, shall be extended with the specific
+ SoC family:
+ o "atmel,sams70" shall be extended with the specific MCU compatible:
+ - "atmel,sams70j19"
+ - "atmel,sams70j20"
+ - "atmel,sams70j21"
+ - "atmel,sams70n19"
+ - "atmel,sams70n20"
+ - "atmel,sams70n21"
+ - "atmel,sams70q19"
+ - "atmel,sams70q20"
+ - "atmel,sams70q21"
+ o "atmel,samv70" shall be extended with the specific MCU compatible:
+ - "atmel,samv70j19"
+ - "atmel,samv70j20"
+ - "atmel,samv70n19"
+ - "atmel,samv70n20"
+ - "atmel,samv70q19"
+ - "atmel,samv70q20"
+ o "atmel,samv71" shall be extended with the specific MCU compatible:
+ - "atmel,samv71j19"
+ - "atmel,samv71j20"
+ - "atmel,samv71j21"
+ - "atmel,samv71n19"
+ - "atmel,samv71n20"
+ - "atmel,samv71n21"
+ - "atmel,samv71q19"
+ - "atmel,samv71q20"
+ - "atmel,samv71q21"
+
+Chipid required properties:
+- compatible: Should be "atmel,sama5d2-chipid"
+- reg : Should contain registers location and length
+
PIT Timer required properties:
- compatible: Should be "atmel,at91sam9260-pit"
- reg: Should contain registers location and length
@@ -147,6 +181,65 @@ Example:
clocks = <&clk32k>;
};
+SHDWC SAMA5D2-Compatible Shutdown Controller
+
+1) shdwc node
+
+required properties:
+- compatible: should be "atmel,sama5d2-shdwc".
+- reg: should contain registers location and length
+- clocks: phandle to input clock.
+- #address-cells: should be one. The cell is the wake-up input index.
+- #size-cells: should be zero.
+
+optional properties:
+
+- debounce-delay-us: minimum wake-up inputs debouncer period in
+ microseconds. It's usually a board-related property.
+- atmel,wakeup-rtc-timer: boolean to enable Real-Time Clock wake-up.
+
+The node contains child nodes for each wake-up input that the platform uses.
+
+2) input nodes
+
+Wake-up input nodes are usually described in the "board" part of the Device
+Tree. Note also that input 0 is linked to the wake-up pin and is frequently
+used.
+
+Required properties:
+- reg: should contain the wake-up input index [0 - 15].
+
+Optional properties:
+- atmel,wakeup-active-high: boolean, the corresponding wake-up input described
+ by the child, forces the wake-up of the core power supply on a high level.
+ The default is to be active low.
+
+Example:
+
+On the SoC side:
+ shdwc@f8048010 {
+ compatible = "atmel,sama5d2-shdwc";
+ reg = <0xf8048010 0x10>;
+ clocks = <&clk32k>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ atmel,wakeup-rtc-timer;
+ };
+
+On the board side:
+ shdwc@f8048010 {
+ debounce-delay-us = <976>;
+
+ input@0 {
+ reg = <0>;
+ };
+
+ input@1 {
+ reg = <1>;
+ atmel,wakeup-active-high;
+ };
+ };
+
Special Function Registers (SFR)
Special Function Registers (SFR) manage specific aspects of the integrated
@@ -154,11 +247,28 @@ memory, bridge implementations, processor and other functionality not controlled
elsewhere.
required properties:
-- compatible: Should be "atmel,<chip>-sfr", "syscon".
- <chip> can be "sama5d3" or "sama5d4".
+- compatible: Should be "atmel,<chip>-sfr", "syscon" or
+ "atmel,<chip>-sfrbu", "syscon"
+ <chip> can be "sama5d3", "sama5d4" or "sama5d2".
- reg: Should contain registers location and length
sfr@f0038000 {
compatible = "atmel,sama5d3-sfr", "syscon";
reg = <0xf0038000 0x60>;
};
+
+Security Module (SECUMOD)
+
+The Security Module macrocell provides all necessary secure functions to avoid
+voltage, temperature, frequency and mechanical attacks on the chip. It also
+embeds secure memories that can be scrambled
+
+required properties:
+- compatible: Should be "atmel,<chip>-secumod", "syscon".
+ <chip> can be "sama5d2".
+- reg: Should contain registers location and length
+
+ secumod@fc040000 {
+ compatible = "atmel,sama5d2-secumod", "syscon";
+ reg = <0xfc040000 0x100>;
+ };