ARM: uniphier: drop ad-hoc input enable settings

These input enable settings are handled by the pinctrl drivers.

Because the external bus pins are input-enabled by default, on-board
devices such as LED still work fine even with this delayed input
enabling.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/arm/mach-uniphier/ph1-ld4/Makefile

@@ -4,7 +4,7 @@
 
 ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o
-obj-y += bcu_init.o sg_init.o pll_init.o early_clkrst_init.o \
+obj-y += bcu_init.o pll_init.o early_clkrst_init.o \
 	pll_spectrum.o umc_init.o ddrphy_init.o
 obj-$(CONFIG_PFC_MICRO_SUPPORT_CARD) += sbc_init.o
 obj-$(CONFIG_DCC_MICRO_SUPPORT_CARD) += sbc_init_3cs.o

arch/arm/mach-uniphier/ph1-ld4/sg_init.c

-/*
- * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <linux/io.h>
-#include <mach/sg-regs.h>
-
-void sg_init(void)
-{
-	u32 tmp;
-
-	/* Input ports must be enabled before deasserting reset of cores */
-	tmp = readl(SG_IECTRL);
-	tmp |= 0x1;
-	writel(tmp, SG_IECTRL);
-}

arch/arm/mach-uniphier/ph1-pro4/Makefile

@@ -4,7 +4,7 @@
 
 ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o
-obj-y += sg_init.o pll_init.o early_clkrst_init.o \
+obj-y += pll_init.o early_clkrst_init.o \
 	pll_spectrum.o umc_init.o ddrphy_init.o
 obj-$(CONFIG_PFC_MICRO_SUPPORT_CARD) += sbc_init.o
 obj-$(CONFIG_DCC_MICRO_SUPPORT_CARD) += sbc_init_3cs.o

arch/arm/mach-uniphier/ph1-pro4/sg_init.c

-/*
- * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <linux/io.h>
-#include <mach/sg-regs.h>
-
-void sg_init(void)
-{
-	u32 tmp;
-
-	/* Input ports must be enabled before deasserting reset of cores */
-	tmp = readl(SG_IECTRL);
-	tmp |= 1 << 6;
-	writel(tmp, SG_IECTRL);
-}

arch/arm/mach-uniphier/ph1-sld8/pinctrl.c

@@ -11,15 +11,6 @@ void pin_init(void)
 {
 	/* Comment format:    PAD Name -> Function Name */
 
-#ifdef CONFIG_SYS_I2C_UNIPHIER
-	{
-		u32 tmp;
-		tmp = readl(SG_IECTRL);
-		tmp |= 0xc00; /* enable SCL0, SDA0, SCL1, SDA1 */
-		writel(tmp, SG_IECTRL);
-	}
-#endif
-
 #ifdef CONFIG_NAND_DENALI
 	sg_set_pinsel(15, 0);	/* XNFRE_GB -> XNFRE_GB */
 	sg_set_pinsel(16, 0);	/* XNFWE_GB -> XNFWE_GB */

arch/arm/mach-uniphier/ph1-sld8/sg_init.c

-#include "../ph1-ld4/sg_init.c"

arch/arm/mach-uniphier/spl.c

 /*
- * Copyright (C) 2013-2015 Panasonic Corporation
- * Copyright (C) 2015      Socionext Inc.
- *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+ * Copyright (C) 2013-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */
@@ -16,6 +14,10 @@ void __weak bcu_init(void)
 {
 };
 
+void __weak sg_init(void)
+{
+};
+
 void __weak early_pin_init(void)
 {
 };