ARM: uniphier: allow to use System Bus for ROM boot mode of PH1-LD20

The System Bus is not available by default on the ROM boot mode of
PH1-LD20.  To use devices connected to the System Bus, such as the
Micro Support Card, it is necessary to set up pin-muxing and some
System Bus Controller register.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/init/init-ld20.c b/arch/arm/mach-uniphier/init/init-ld20.c
index 0ad264c..660ad45 100644
--- a/arch/arm/mach-uniphier/init/init-ld20.c
+++ b/arch/arm/mach-uniphier/init/init-ld20.c
@@ -13,6 +13,8 @@
 int uniphier_ld20_init(const struct uniphier_board_data *bd)
 {
 	uniphier_sbc_init_savepin(bd);
+	uniphier_pxs2_sbc_init(bd);
+	uniphier_ld20_early_pin_init(bd);
 
 	support_card_reset();