ARM: kirkwood: move DT boards to SoC-centric clock init

SoC centric clock init for Kirkwood can be used by calling of_clk_init.
Use it and get rid of mvebu_clocks_init.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/mach-kirkwood/Kconfig

@@ -134,13 +134,12 @@ comment "Device tree entries"
 
 config ARCH_KIRKWOOD_DT
 	bool "Marvell Kirkwood Flattened Device Tree"
+	select KIRKWOOD_CLK
 	select POWER_SUPPLY
 	select POWER_RESET
 	select POWER_RESET_GPIO
 	select REGULATOR
 	select REGULATOR_FIXED_VOLTAGE
-	select MVEBU_CLK_CORE
-	select MVEBU_CLK_GATING
 	select USE_OF
 	help
 	  Say 'Y' here if you want your kernel to support the

arch/arm/mach-kirkwood/board-dt.c

@@ -15,7 +15,6 @@
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/clk-provider.h>
-#include <linux/clk/mvebu.h>
 #include <linux/kexec.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -77,7 +76,7 @@ static void __init kirkwood_legacy_clk_init(void)
 
 static void __init kirkwood_of_clk_init(void)
 {
-	mvebu_clocks_init();
+	of_clk_init(NULL);
 	kirkwood_legacy_clk_init();
 }