ARM: shmobile: Use shmobile_init_delay() on r7s72100

Adjust the r7s72100 SoC support code to use shmobile_init_delay()
together with CPU Frequency settings from the DTS. Get rid of the
C code version.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/arch/arm/mach-shmobile/setup-r7s72100.c b/arch/arm/mach-shmobile/setup-r7s72100.c
index 17a74d3..a55d68d 100644
--- a/arch/arm/mach-shmobile/setup-r7s72100.c
+++ b/arch/arm/mach-shmobile/setup-r7s72100.c
@@ -43,11 +43,6 @@
 	r7s72100_register_mtu2();
 }
 
-void __init r7s72100_init_early(void)
-{
-	shmobile_setup_delay(400, 1, 3); /* Cortex-A9 @ 400MHz */
-}
-
 #ifdef CONFIG_USE_OF
 static const char *r7s72100_boards_compat_dt[] __initdata = {
 	"renesas,r7s72100",
@@ -55,7 +50,7 @@
 };
 
 DT_MACHINE_START(R7S72100_DT, "Generic R7S72100 (Flattened Device Tree)")
-	.init_early	= r7s72100_init_early,
+	.init_early	= shmobile_init_delay,
 	.dt_compat	= r7s72100_boards_compat_dt,
 MACHINE_END
 #endif /* CONFIG_USE_OF */