mx5: fix get_reset_cause

commit d9f43c8f sets
get_reset_cause() as static, but this conflicts with mx5
where its prototype is in sys_proto.h.

Drop it from sys_proto.h and drop print_cpuinfo from mx53_loco,
factorizing the call for this board.
Signed-off-by: NStefano Babic <sbabic@denx.de>
CC: Jason Liu <jason.hui@linaro.org>

arch/arm/include/asm/arch-mx5/sys_proto.h

@@ -24,6 +24,5 @@ void set_chipselect_size(int const);
 int fecmxc_initialize(bd_t *bis);
 u32 get_ahb_clk(void);
 u32 get_periph_clk(void);
-char *get_reset_cause(void);
 
 #endif

board/freescale/mx53loco/mx53loco.c

@@ -366,22 +366,6 @@ int board_early_init_f(void)
 	return 0;
 }
 
-#if defined(CONFIG_DISPLAY_CPUINFO)
-int print_cpuinfo(void)
-{
-	u32 cpurev;
-
-	cpurev = get_cpu_rev();
-	printf("CPU:   Freescale i.MX%x family rev%d.%d at %d MHz\n",
-		(cpurev & 0xFF000) >> 12,
-		(cpurev & 0x000F0) >> 4,
-		(cpurev & 0x0000F) >> 0,
-		mxc_get_clock(MXC_ARM_CLK) / 1000000);
-	printf("Reset cause: %s\n", get_reset_cause());
-	return 0;
-}
-#endif
-
 /*
  * Do not overwrite the console
  * Use always serial for U-Boot console

include/configs/mx53loco.h

@@ -24,6 +24,8 @@
 
 #define CONFIG_SYS_GENERIC_BOARD
 
+#define CONFIG_DISPLAY_CPUINFO
+
 /* Size of malloc() pool */
 #define CONFIG_SYS_MALLOC_LEN		(10 * 1024 * 1024)