ARM: at91/dt: introduce atmel,<chip>-dbgu

The DBGU is not a simple UART and we need to be able to distinguish it from the
other UARTs, in particular to get its address and check the chip id.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

diff --git a/Documentation/devicetree/bindings/serial/atmel-usart.txt b/Documentation/devicetree/bindings/serial/atmel-usart.txt
index a6391e7..90787aa 100644 (file)
--- a/Documentation/devicetree/bindings/serial/atmel-usart.txt
+++ b/Documentation/devicetree/bindings/serial/atmel-usart.txt
@@ -1,9 +1,10 @@
 * Atmel Universal Synchronous Asynchronous Receiver/Transmitter (USART)
 
 Required properties:
-- compatible: Should be "atmel,<chip>-usart"
+- compatible: Should be "atmel,<chip>-usart" or "atmel,<chip>-dbgu"
   The compatible <chip> indicated will be the first SoC to support an
   additional mode or an USART new feature.
+  For the dbgu UART, use "atmel,<chip>-dbgu", "atmel,<chip>-usart"
 - reg: Should contain registers location and length
 - interrupts: Should contain interrupt
 - clock-names: tuple listing input clock names.

diff --git a/arch/arm/boot/dts/at91rm9200.dtsi b/arch/arm/boot/dts/at91rm9200.dtsi
index 21c2b50..c515e4b 100644 (file)
--- a/arch/arm/boot/dts/at91rm9200.dtsi
+++ b/arch/arm/boot/dts/at91rm9200.dtsi
@@ -830,7 +830,7 @@
                        };
 
                        dbgu: serial@fffff200 {
-                               compatible = "atmel,at91rm9200-usart";
+                               compatible = "atmel,at91rm9200-dbgu", "atmel,at91rm9200-usart";
                                reg = <0xfffff200 0x200>;
                                interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
                                pinctrl-names = "default";

diff --git a/arch/arm/boot/dts/at91sam9260.dtsi b/arch/arm/boot/dts/at91sam9260.dtsi
index e7f0a4a..7d989a8 100644 (file)
--- a/arch/arm/boot/dts/at91sam9260.dtsi
+++ b/arch/arm/boot/dts/at91sam9260.dtsi
@@ -753,7 +753,7 @@
                        };
 
                        dbgu: serial@fffff200 {
-                               compatible = "atmel,at91sam9260-usart";
+                               compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
                                reg = <0xfffff200 0x200>;
                                interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
                                pinctrl-names = "default";

diff --git a/arch/arm/boot/dts/at91sam9261.dtsi b/arch/arm/boot/dts/at91sam9261.dtsi
index d55fdf2..bf8d185 100644 (file)
--- a/arch/arm/boot/dts/at91sam9261.dtsi
+++ b/arch/arm/boot/dts/at91sam9261.dtsi
@@ -276,7 +276,7 @@
                        };
 
                        dbgu: serial@fffff200 {
-                               compatible = "atmel,at91sam9260-usart";
+                               compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
                                reg = <0xfffff200 0x200>;
                                interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
                                pinctrl-names = "default";

diff --git a/arch/arm/boot/dts/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi
index fce301c..e07dae7 100644 (file)
--- a/arch/arm/boot/dts/at91sam9263.dtsi
+++ b/arch/arm/boot/dts/at91sam9263.dtsi
@@ -762,7 +762,7 @@
                        };
 
                        dbgu: serial@ffffee00 {
-                               compatible = "atmel,at91sam9260-usart";
+                               compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
                                reg = <0xffffee00 0x200>;
                                interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
                                pinctrl-names = "default";

diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
index 488af63..56b66a7 100644 (file)
--- a/arch/arm/boot/dts/at91sam9g45.dtsi
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi
@@ -893,7 +893,7 @@
                        };
 
                        dbgu: serial@ffffee00 {
-                               compatible = "atmel,at91sam9260-usart";
+                               compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
                                reg = <0xffffee00 0x200>;
                                interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
                                pinctrl-names = "default";

diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi
index 0c53a37..ea0af0f 100644 (file)
--- a/arch/arm/boot/dts/at91sam9n12.dtsi
+++ b/arch/arm/boot/dts/at91sam9n12.dtsi
@@ -757,7 +757,7 @@
                        };
 
                        dbgu: serial@fffff200 {
-                               compatible = "atmel,at91sam9260-usart";
+                               compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
                                reg = <0xfffff200 0x200>;
                                interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
                                pinctrl-names = "default";

diff --git a/arch/arm/boot/dts/at91sam9rl.dtsi b/arch/arm/boot/dts/at91sam9rl.dtsi
index 40f645b..ebfd5ce 100644 (file)
--- a/arch/arm/boot/dts/at91sam9rl.dtsi
+++ b/arch/arm/boot/dts/at91sam9rl.dtsi
@@ -377,7 +377,7 @@
                        };
 
                        dbgu: serial@fffff200 {
-                               compatible = "atmel,at91sam9260-usart";
+                               compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
                                reg = <0xfffff200 0x200>;
                                interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
                                pinctrl-names = "default";

diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index d221179..3aa56ae 100644 (file)
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -860,7 +860,7 @@
                        };
 
                        dbgu: serial@fffff200 {
-                               compatible = "atmel,at91sam9260-usart";
+                               compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
                                reg = <0xfffff200 0x200>;
                                interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
                                pinctrl-names = "default";

diff --git a/arch/arm/boot/dts/sama5d3.dtsi b/arch/arm/boot/dts/sama5d3.dtsi
index 367af53..c0a8dfc 100644 (file)
--- a/arch/arm/boot/dts/sama5d3.dtsi
+++ b/arch/arm/boot/dts/sama5d3.dtsi
@@ -439,7 +439,7 @@
                        };
 
                        dbgu: serial@ffffee00 {
-                               compatible = "atmel,at91sam9260-usart";
+                               compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
                                reg = <0xffffee00 0x200>;
                                interrupts = <2 IRQ_TYPE_LEVEL_HIGH 7>;
                                dmas = <&dma1 2 AT91_DMA_CFG_PER_ID(13)>,

diff --git a/arch/arm/boot/dts/sama5d4.dtsi b/arch/arm/boot/dts/sama5d4.dtsi
index 4303874..782587d 100644 (file)
--- a/arch/arm/boot/dts/sama5d4.dtsi
+++ b/arch/arm/boot/dts/sama5d4.dtsi
@@ -1064,7 +1064,7 @@
                        };
 
                        dbgu: serial@fc069000 {
-                               compatible = "atmel,at91sam9260-usart";
+                               compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
                                reg = <0xfc069000 0x200>;
                                interrupts = <2 IRQ_TYPE_LEVEL_HIGH 7>;
                                pinctrl-names = "default";