From: Ivan Khoronzhuk Date: Tue, 18 Feb 2014 16:40:34 +0000 (-0500) Subject: ARM: dts: keystone: drop msmcsram clock node X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5a2abe192d3596e633c22175b292be0c6d26c1ce;p=linux-beck.git ARM: dts: keystone: drop msmcsram clock node At late init all unused clocks are disabled. So clocks that were not get before will be gated. In Keysone 2 SoC we have at least one necessary clock that is not used by any driver - "msmcsram". This clock is necessary, because it supplies the Multicore Shared Memory Controller (MSMC). MSMC is the coherency interconnect and all the coherent masters are connected to it including devices which are not under Linux OS control. MSMC clock should not be touched even in low power states. So drop the clock node, otherwise 'clk_ignore_unused' parameter will disable the clock leading to system stall. Signed-off-by: Ivan Khoronzhuk Signed-off-by: Santosh Shilimkar --- diff --git a/arch/arm/boot/dts/keystone-clocks.dtsi b/arch/arm/boot/dts/keystone-clocks.dtsi index 16d2aba2a161..a05050a73ec5 100644 --- a/arch/arm/boot/dts/keystone-clocks.dtsi +++ b/arch/arm/boot/dts/keystone-clocks.dtsi @@ -327,16 +327,6 @@ clocks { domain-id = <6>; }; - clkmsmcsram: clkmsmcsram { - #clock-cells = <0>; - compatible = "ti,keystone,psc-clock"; - clocks = <&chipclk1>; - clock-output-names = "msmcsram"; - reg = <0x02350038 0xb00>, <0x0235001c 0x400>; - reg-names = "control", "domain"; - domain-id = <7>; - }; - clkgem0: clkgem0 { #clock-cells = <0>; compatible = "ti,keystone,psc-clock";