linux-kernel - [PATCH] ARM: at91/dt: declare sckc node on at91sam9g45

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Date:	Tue,  9 Sep 2014 12:14:20 +0200
From:	Boris BREZILLON <boris.brezillon@...e-electrons.com>
To:	Nicolas Ferre <nicolas.ferre@...el.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Andrew Victor <linux@...im.org.za>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Boris BREZILLON <boris.brezillon@...e-electrons.com>
Subject: [PATCH] ARM: at91/dt: declare sckc node on at91sam9g45

Declare the SCKC (Slow Clock Configuration) block and its clks.
Make use of the clk32k clk instead of slow_osc where appropriate.

Signed-off-by: Boris BREZILLON <boris.brezillon@...e-electrons.com>
---
 arch/arm/boot/dts/at91sam9g45.dtsi | 30 ++++++++++++++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
index 9d4d0a1..68a457b 100644
--- a/arch/arm/boot/dts/at91sam9g45.dtsi
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi
@@ -159,7 +159,7 @@
 					compatible = "atmel,at91rm9200-clk-master";
 					#clock-cells = <0>;
 					interrupts-extended = <&pmc AT91_PMC_MCKRDY>;
-					clocks = <&slow_xtal>, <&main>, <&plladiv>, <&utmi>;
+					clocks = <&clk32k>, <&main>, <&plladiv>, <&utmi>;
 					atmel,clk-output-range = <0 133333333>;
 					atmel,clk-divisors = <1 2 4 3>;
 				};
@@ -175,7 +175,7 @@
 					#address-cells = <1>;
 					#size-cells = <0>;
 					interrupt-parent = <&pmc>;
-					clocks = <&slow_xtal>, <&main>, <&plladiv>, <&utmi>, <&mck>;
+					clocks = <&clk32k>, <&main>, <&plladiv>, <&utmi>, <&mck>;
 
 					prog0: prog0 {
 						#clock-cells = <0>;
@@ -1160,6 +1160,32 @@
 				};
 			};
 
+			sckc@...ffd50 {
+				compatible = "atmel,at91sam9x5-sckc";
+				reg = <0xfffffd50 0x4>;
+
+				slow_osc: slow_osc {
+					compatible = "atmel,at91sam9x5-clk-slow-osc";
+					#clock-cells = <0>;
+					atmel,startup-time-usec = <1200000>;
+					clocks = <&slow_xtal>;
+				};
+
+				slow_rc_osc: slow_rc_osc {
+					compatible = "atmel,at91sam9x5-clk-slow-rc-osc";
+					#clock-cells = <0>;
+					atmel,startup-time-usec = <75>;
+					clock-frequency = <32768>;
+					clock-accuracy = <50000000>;
+				};
+
+				clk32k: slck {
+					compatible = "atmel,at91sam9x5-clk-slow";
+					#clock-cells = <0>;
+					clocks = <&slow_rc_osc &slow_osc>;
+				};
+			};
+
 			rtc@...ffdb0 {
 				compatible = "atmel,at91rm9200-rtc";
 				reg = <0xfffffdb0 0x10>;
-- 
1.9.1

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