ARM: imx: Remove remnant board file support pieces

Since i.MX board files are gone, remove some remnant pieces of
board file support.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Author: fabioestevam

arch/arm/mach-imx/Makefile

@@ -5,7 +5,7 @@ obj-$(CONFIG_SOC_IMX25) += cpu-imx25.o mach-imx25.o pm-imx25.o
 
 obj-$(CONFIG_SOC_IMX27) += cpu-imx27.o pm-imx27.o mach-imx27.o
 
-obj-$(CONFIG_SOC_IMX31) += mm-imx3.o cpu-imx31.o iomux-imx31.o mach-imx31.o
+obj-$(CONFIG_SOC_IMX31) += mm-imx3.o cpu-imx31.o mach-imx31.o
 obj-$(CONFIG_SOC_IMX35) += mm-imx3.o cpu-imx35.o mach-imx35.o
 
 imx5-pm-$(CONFIG_PM) += pm-imx5.o

arch/arm/mach-imx/common.h

@@ -17,23 +17,14 @@ struct device_node;
 enum mxc_cpu_pwr_mode;
 struct of_device_id;
 
-void mx21_map_io(void);
 void mx31_map_io(void);
 void mx35_map_io(void);
 void imx21_init_early(void);
 void imx31_init_early(void);
 void imx35_init_early(void);
 void mxc_init_irq(void __iomem *);
-void mx21_init_irq(void);
 void mx31_init_irq(void);
 void mx35_init_irq(void);
-void imx21_soc_init(void);
-int mx21_clocks_init(unsigned long lref, unsigned long fref);
-int mx27_clocks_init(unsigned long fref);
-int mx31_clocks_init(unsigned long fref);
-int mx35_clocks_init(void);
-struct platform_device *mxc_register_gpio(char *name, int id,
-	resource_size_t iobase, resource_size_t iosize, int irq, int irq_high);
 void mxc_set_cpu_type(unsigned int type);
 void mxc_restart(enum reboot_mode, const char *);
 void mxc_arch_reset_init(void __iomem *);

arch/arm/mach-imx/devices-imx27.h

@@ -97,7 +97,6 @@
 #include "mx31.h"
 #include "mx35.h"
 #include "mx2x.h"
-#include "mx21.h"
 #include "mx27.h"
 
 #define imx_map_entry(soc, name, _type)	{				\