From a64b1b220bd76cebfc2b2dad80f8365d770eee91 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 4 Apr 2013 16:04:09 +0900 Subject: ARM: dts: Add SYSREG block node for S5P/Exynos4 SoC series This patch adds device tree node for the SYSREG registers block found in Samsung S5P/Exynos SoC series. The SYSREG module generates control signals for the ARM CPU and various IP blocks and buses. SYSREG block registers are exposed through APB bus interface. A sysreg device tree node is to be associated with mfd syscon driver and all SYSREG clients should use regmap interface it provides. It allows to eliminate any possible races and conflicts should different drivers attempt to concurrently access same register. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Kukjin Kim --- arch/arm/boot/dts/exynos4.dtsi | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch') diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi index aa21e2e9665..800ff11fe6f 100644 --- a/arch/arm/boot/dts/exynos4.dtsi +++ b/arch/arm/boot/dts/exynos4.dtsi @@ -82,6 +82,11 @@ reg = <0x10440000 0x1000>; }; + sys_reg: sysreg { + compatible = "samsung,exynos4-sysreg", "syscon"; + reg = <0x10010000 0x400>; + }; + watchdog@10060000 { compatible = "samsung,s3c2410-wdt"; reg = <0x10060000 0x100>; -- cgit v1.2.3-70-g09d2