ARM: uniphier: refactor SBC init code

Merge sbc-admulti.c and sbc-savepin.c into a single file to avoid
code duplication.

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

arch/arm/mach-uniphier/init.h

@@ -46,31 +46,30 @@ int uniphier_ld11_init(const struct uniphier_board_data *bd);
 int uniphier_ld20_init(const struct uniphier_board_data *bd);
 
 #if defined(CONFIG_MICRO_SUPPORT_CARD)
-int uniphier_sbc_init_admulti(const struct uniphier_board_data *bd);
-int uniphier_sbc_init_savepin(const struct uniphier_board_data *bd);
-int uniphier_ld4_sbc_init(const struct uniphier_board_data *bd);
-int uniphier_pxs2_sbc_init(const struct uniphier_board_data *bd);
+void uniphier_sbc_init_admulti(void);
+void uniphier_sbc_init_savepin(void);
+void uniphier_ld4_sbc_init(void);
+void uniphier_pxs2_sbc_init(void);
+void uniphier_ld11_sbc_init(void);
 #else
-static inline int uniphier_sbc_init_admulti(
-					const struct uniphier_board_data *bd)
+static inline void uniphier_sbc_init_admulti(void)
 {
-	return 0;
 }
 
-static inline int uniphier_sbc_init_savepin(
-					const struct uniphier_board_data *bd)
+static inline void uniphier_sbc_init_savepin(void)
 {
-	return 0;
 }
 
-static inline int uniphier_ld4_sbc_init(const struct uniphier_board_data *bd)
+static inline void uniphier_ld4_sbc_init(void)
 {
-	return 0;
 }
 
-static inline int uniphier_pxs2_sbc_init(const struct uniphier_board_data *bd)
+static inline void uniphier_pxs2_sbc_init(void)
+{
+}
+
+static inline void uniphier_ld11_sbc_init(void)
 {
-	return 0;
 }
 #endif
 

arch/arm/mach-uniphier/init/init-ld11.c

@@ -13,11 +13,7 @@
 
 int uniphier_ld11_init(const struct uniphier_board_data *bd)
 {
-	uniphier_sbc_init_savepin(bd);
-	uniphier_pxs2_sbc_init(bd);
-	/* pins for NAND and System Bus are multiplexed */
-	if (spl_boot_device() != BOOT_DEVICE_NAND)
-		uniphier_pin_init("system_bus_grp");
+	uniphier_ld11_sbc_init();
 
 	support_card_reset();
 

arch/arm/mach-uniphier/init/init-ld20.c

@@ -13,11 +13,7 @@
 
 int uniphier_ld20_init(const struct uniphier_board_data *bd)
 {
-	uniphier_sbc_init_savepin(bd);
-	uniphier_pxs2_sbc_init(bd);
-	/* pins for NAND and System Bus are multiplexed */
-	if (spl_boot_device() != BOOT_DEVICE_NAND)
-		uniphier_pin_init("system_bus_grp");
+	uniphier_ld11_sbc_init();
 
 	support_card_reset();
 

arch/arm/mach-uniphier/init/init-ld4.c

@@ -16,8 +16,7 @@ int uniphier_ld4_init(const struct uniphier_board_data *bd)
 {
 	uniphier_ld4_bcu_init(bd);
 
-	uniphier_sbc_init_savepin(bd);
-	uniphier_ld4_sbc_init(bd);
+	uniphier_ld4_sbc_init();
 
 	support_card_reset();
 

arch/arm/mach-uniphier/init/init-pro4.c

@@ -14,7 +14,7 @@
 
 int uniphier_pro4_init(const struct uniphier_board_data *bd)
 {
-	uniphier_sbc_init_savepin(bd);
+	uniphier_sbc_init_savepin();
 
 	support_card_reset();
 

arch/arm/mach-uniphier/init/init-pro5.c

@@ -12,7 +12,7 @@
 
 int uniphier_pro5_init(const struct uniphier_board_data *bd)
 {
-	uniphier_sbc_init_savepin(bd);
+	uniphier_sbc_init_savepin();
 
 	support_card_reset();
 

arch/arm/mach-uniphier/init/init-pxs2.c

@@ -14,8 +14,7 @@ int uniphier_pxs2_init(const struct uniphier_board_data *bd)
 {
 	int ret;
 
-	uniphier_sbc_init_savepin(bd);
-	uniphier_pxs2_sbc_init(bd);
+	uniphier_pxs2_sbc_init();
 
 	support_card_reset();
 

arch/arm/mach-uniphier/init/init-sld3.c

@@ -16,7 +16,7 @@ int uniphier_sld3_init(const struct uniphier_board_data *bd)
 {
 	uniphier_sld3_bcu_init(bd);
 
-	uniphier_sbc_init_admulti(bd);
+	uniphier_sbc_init_admulti();
 
 	support_card_reset();
 

arch/arm/mach-uniphier/init/init-sld8.c

@@ -16,8 +16,7 @@ int uniphier_sld8_init(const struct uniphier_board_data *bd)
 {
 	uniphier_ld4_bcu_init(bd);
 
-	uniphier_sbc_init_savepin(bd);
-	uniphier_ld4_sbc_init(bd);
+	uniphier_ld4_sbc_init();
 
 	support_card_reset();
 

arch/arm/mach-uniphier/sbc/Makefile

@@ -2,12 +2,11 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_ARCH_UNIPHIER_SLD3)	+= sbc-admulti.o
-obj-$(CONFIG_ARCH_UNIPHIER_LD4)		+= sbc-savepin.o sbc-ld4.o
-obj-$(CONFIG_ARCH_UNIPHIER_PRO4)	+= sbc-savepin.o
-obj-$(CONFIG_ARCH_UNIPHIER_SLD8)	+= sbc-savepin.o sbc-ld4.o
-obj-$(CONFIG_ARCH_UNIPHIER_PRO5)	+= sbc-savepin.o
-obj-$(CONFIG_ARCH_UNIPHIER_PXS2)	+= sbc-savepin.o sbc-pxs2.o
-obj-$(CONFIG_ARCH_UNIPHIER_LD6B)	+= sbc-savepin.o sbc-pxs2.o
-obj-$(CONFIG_ARCH_UNIPHIER_LD11)	+= sbc-savepin.o sbc-pxs2.o
-obj-$(CONFIG_ARCH_UNIPHIER_LD20)	+= sbc-savepin.o sbc-pxs2.o
+obj-y					+= sbc.o
+
+obj-$(CONFIG_ARCH_UNIPHIER_LD4)		+= sbc-ld4.o
+obj-$(CONFIG_ARCH_UNIPHIER_SLD8)	+= sbc-ld4.o
+obj-$(CONFIG_ARCH_UNIPHIER_PXS2)	+= sbc-pxs2.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD6B)	+= sbc-pxs2.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD11)	+= sbc-ld11.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD20)	+= sbc-ld11.o

arch/arm/mach-uniphier/sbc/sbc-admulti.c

-/*
- * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <linux/io.h>
-
-#include "../init.h"
-#include "../sg-regs.h"
-#include "sbc-regs.h"
-
-#define SBCTRL0_ADMULTIPLX_PERI_VALUE	0x33120000
-#define SBCTRL1_ADMULTIPLX_PERI_VALUE	0x03005500
-#define SBCTRL2_ADMULTIPLX_PERI_VALUE	0x14000020
-
-#define SBCTRL0_ADMULTIPLX_MEM_VALUE	0x33120000
-#define SBCTRL1_ADMULTIPLX_MEM_VALUE	0x03005500
-#define SBCTRL2_ADMULTIPLX_MEM_VALUE	0x14000010
-
-int uniphier_sbc_init_admulti(const struct uniphier_board_data *bd)
-{
-	/*
-	 * Only CS1 is connected to support card.
-	 * BKSZ[1:0] should be set to "01".
-	 */
-	writel(SBCTRL0_ADMULTIPLX_MEM_VALUE, SBCTRL10);
-	writel(SBCTRL1_ADMULTIPLX_MEM_VALUE, SBCTRL11);
-	writel(SBCTRL2_ADMULTIPLX_MEM_VALUE, SBCTRL12);
-
-	if (boot_is_swapped()) {
-		/*
-		 * Boot Swap On: boot from external NOR/SRAM
-		 * 0x42000000-0x43ffffff is a mirror of 0x40000000-0x41ffffff.
-		 *
-		 * 0x40000000-0x41efffff, 0x42000000-0x43efffff: memory bank
-		 * 0x41f00000-0x41ffffff, 0x43f00000-0x43ffffff: peripherals
-		 */
-		writel(0x0000bc01, SBBASE0);
-	} else {
-		/*
-		 * Boot Swap Off: boot from mask ROM
-		 * 0x40000000-0x41ffffff: mask ROM
-		 * 0x42000000-0x43efffff: memory bank (31MB)
-		 * 0x43f00000-0x43ffffff: peripherals (1MB)
-		 */
-		writel(0x0000be01, SBBASE0); /* dummy */
-		writel(0x0200be01, SBBASE1);
-	}
-
-	return 0;
-}

arch/arm/mach-uniphier/sbc/sbc-ld11.c

+/*
+ * Copyright (C) 2016-2017 Socionext Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <spl.h>
+#include <linux/io.h>
+
+#include "../init.h"
+#include "sbc-regs.h"
+
+void uniphier_ld11_sbc_init(void)
+{
+	uniphier_sbc_init_savepin();
+
+	/* necessary for ROM boot ?? */
+	/* system bus output enable */
+	writel(0x17, PC0CTRL);
+
+	/* pins for NAND and System Bus are multiplexed */
+	if (spl_boot_device() != BOOT_DEVICE_NAND)
+		uniphier_pin_init("system_bus_grp");
+}

arch/arm/mach-uniphier/sbc/sbc-ld4.c

 /*
- * Copyright (C) 2011-2016 Masahiro Yamada <yamada.masahiro@socionext.com>
+ * Copyright (C) 2011-2015 Panasonic Corporation
+ * Copyright (C) 2015-2017 Socionext Inc.
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */
@@ -9,14 +10,14 @@
 #include "../init.h"
 #include "sbc-regs.h"
 
-int uniphier_ld4_sbc_init(const struct uniphier_board_data *bd)
+void uniphier_ld4_sbc_init(void)
 {
 	u32 tmp;
 
+	uniphier_sbc_init_savepin();
+
 	/* system bus output enable */
 	tmp = readl(PC0CTRL);
 	tmp &= 0xfffffcff;
 	writel(tmp, PC0CTRL);
-
-	return 0;
 }

arch/arm/mach-uniphier/sbc/sbc-pxs2.c

 /*
- * Copyright (C) 2015-2016 Masahiro Yamada <yamada.masahiro@socionext.com>
+ * Copyright (C) 2016-2017 Socionext Inc.
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */
@@ -9,11 +9,11 @@
 #include "../init.h"
 #include "sbc-regs.h"
 
-int uniphier_pxs2_sbc_init(const struct uniphier_board_data *bd)
+void uniphier_pxs2_sbc_init(void)
 {
+	uniphier_sbc_init_savepin();
+
 	/* necessary for ROM boot ?? */
 	/* system bus output enable */
 	writel(0x17, PC0CTRL);
-
-	return 0;
 }

arch/arm/mach-uniphier/sbc/sbc-savepin.c → arch/arm/mach-uniphier/sbc/sbc.c

 /*
- * Copyright (C) 2011-2016 Masahiro Yamada <yamada.masahiro@socionext.com>
+ * Copyright (C) 2011-2015 Panasonic Corporation
+ * Copyright (C) 2015-2017 Socionext Inc.
+ *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */
@@ -9,6 +11,14 @@
 #include "../init.h"
 #include "sbc-regs.h"
 
+#define SBCTRL0_ADMULTIPLX_PERI_VALUE	0x33120000
+#define SBCTRL1_ADMULTIPLX_PERI_VALUE	0x03005500
+#define SBCTRL2_ADMULTIPLX_PERI_VALUE	0x14000020
+
+#define SBCTRL0_ADMULTIPLX_MEM_VALUE	0x33120000
+#define SBCTRL1_ADMULTIPLX_MEM_VALUE	0x03005500
+#define SBCTRL2_ADMULTIPLX_MEM_VALUE	0x14000010
+
 /* slower but LED works */
 #define SBCTRL0_SAVEPIN_PERI_VALUE	0x55450000
 #define SBCTRL1_SAVEPIN_PERI_VALUE	0x07168d00
@@ -22,16 +32,22 @@
 #define SBCTRL2_SAVEPIN_MEM_VALUE	0x34000009
 #define SBCTRL4_SAVEPIN_MEM_VALUE	0x02110210
 
-int uniphier_sbc_init_savepin(const struct uniphier_board_data *bd)
+static void __uniphier_sbc_init(int savepin)
 {
 	/*
 	 * Only CS1 is connected to support card.
 	 * BKSZ[1:0] should be set to "01".
 	 */
-	writel(SBCTRL0_SAVEPIN_PERI_VALUE, SBCTRL10);
-	writel(SBCTRL1_SAVEPIN_PERI_VALUE, SBCTRL11);
-	writel(SBCTRL2_SAVEPIN_PERI_VALUE, SBCTRL12);
-	writel(SBCTRL4_SAVEPIN_PERI_VALUE, SBCTRL14);
+	if (savepin) {
+		writel(SBCTRL0_SAVEPIN_PERI_VALUE, SBCTRL10);
+		writel(SBCTRL1_SAVEPIN_PERI_VALUE, SBCTRL11);
+		writel(SBCTRL2_SAVEPIN_PERI_VALUE, SBCTRL12);
+		writel(SBCTRL4_SAVEPIN_PERI_VALUE, SBCTRL14);
+	} else {
+		writel(SBCTRL0_ADMULTIPLX_MEM_VALUE, SBCTRL10);
+		writel(SBCTRL1_ADMULTIPLX_MEM_VALUE, SBCTRL11);
+		writel(SBCTRL2_ADMULTIPLX_MEM_VALUE, SBCTRL12);
+	}
 
 	if (boot_is_swapped()) {
 		/*
@@ -52,6 +68,14 @@ int uniphier_sbc_init_savepin(const struct uniphier_board_data *bd)
 		writel(0x0000be01, SBBASE0); /* dummy */
 		writel(0x0200be01, SBBASE1);
 	}
+}
 
-	return 0;
+void uniphier_sbc_init_admulti(void)
+{
+	__uniphier_sbc_init(0);
+}
+
+void uniphier_sbc_init_savepin(void)
+{
+	__uniphier_sbc_init(1);
 }