ARM: uniphier: refactor LED function

The macro, led_write(), is now only used in C sources.  There is no
more reason to keep the tricky assembly macro.  Replace it with a
new C function led_puts().

Also, rename board.h to micro-support-card.h.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/include/mach/led.h b/arch/arm/mach-uniphier/include/mach/led.h
deleted file mode 100644
index f7749b4..0000000
--- a/arch/arm/mach-uniphier/include/mach/led.h
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright (C) 2012-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#ifndef ARCH_LED_H
-#define ARCH_LED_H
-
-#include <config.h>
-
-#define LED_CHAR_0	0x7e
-#define LED_CHAR_1	0x0c
-#define LED_CHAR_2	0xb6
-#define LED_CHAR_3	0x9e
-#define LED_CHAR_4	0xcc
-#define LED_CHAR_5	0xda
-#define LED_CHAR_6	0xfa
-#define LED_CHAR_7	0x4e
-#define LED_CHAR_8	0xfe
-#define LED_CHAR_9	0xde
-
-#define LED_CHAR_A	0xee
-#define LED_CHAR_B	0xf8
-#define LED_CHAR_C	0x72
-#define LED_CHAR_D	0xbc
-#define LED_CHAR_E	0xf2
-#define LED_CHAR_F	0xe2
-#define LED_CHAR_G	0x7a
-#define LED_CHAR_H	0xe8
-#define LED_CHAR_I	0x08
-#define LED_CHAR_J	0x3c
-#define LED_CHAR_K	0xea
-#define LED_CHAR_L	0x70
-#define LED_CHAR_M	0x6e
-#define LED_CHAR_N	0xa8
-#define LED_CHAR_O	0xb8
-#define LED_CHAR_P	0xe6
-#define LED_CHAR_Q	0xce
-#define LED_CHAR_R	0xa0
-#define LED_CHAR_S	0xc8
-#define LED_CHAR_T	0x8c
-#define LED_CHAR_U	0x7c
-#define LED_CHAR_V	0x54
-#define LED_CHAR_W	0xfc
-#define LED_CHAR_X	0xec
-#define LED_CHAR_Y	0xdc
-#define LED_CHAR_Z	0xa4
-
-#define LED_CHAR_SPACE	0x00
-#define LED_CHAR_DOT	0x01
-
-#define LED_CHAR_	(LED_CHAR_SPACE)
-
-/** Macro to translate 4 characters into integer to display led */
-#define LED_C2I(C0, C1, C2, C3)			\
-	(~(					\
-		(LED_CHAR_##C0 << 24) |		\
-		(LED_CHAR_##C1 << 16) |		\
-		(LED_CHAR_##C2 <<  8) |		\
-		(LED_CHAR_##C3)			\
-	))
-
-#if defined(CONFIG_SUPPORT_CARD_LED_BASE)
-
-#define LED_ADDR    CONFIG_SUPPORT_CARD_LED_BASE
-
-#ifdef __ASSEMBLY__
-
-#define led_write(C0, C1, C2, C3)  raw_led_write LED_C2I(C0, C1, C2, C3)
-.macro raw_led_write data
-	ldr r0, =\data
-	ldr r1, =LED_ADDR
-	str r0, [r1]
-.endm
-
-#else /* __ASSEMBLY__ */
-
-#include <linux/io.h>
-
-#define led_write(C0, C1, C2, C3)		\
-do {						\
-	raw_led_write(LED_C2I(C0, C1, C2, C3));	\
-} while (0)
-
-static inline void raw_led_write(u32 data)
-{
-	writel(data, LED_ADDR);
-}
-
-#endif /* __ASSEMBLY__ */
-
-#else /* CONFIG_SUPPORT_CARD_LED_BASE */
-
-#define led_write(C0, C1, C2, C3)
-#define raw_led_write(x)
-
-#endif /* CONFIG_SUPPORT_CARD_LED_BASE */
-
-#endif /* ARCH_LED_H */
diff --git a/arch/arm/mach-uniphier/include/mach/board.h b/arch/arm/mach-uniphier/include/mach/micro-support-card.h
similarity index 87%
rename from arch/arm/mach-uniphier/include/mach/board.h
rename to arch/arm/mach-uniphier/include/mach/micro-support-card.h
index 5b9af22..5da0ada 100644
--- a/arch/arm/mach-uniphier/include/mach/board.h
+++ b/arch/arm/mach-uniphier/include/mach/micro-support-card.h
@@ -12,6 +12,7 @@
 void support_card_init(void);
 void support_card_late_init(void);
 int check_support_card(void);
+void led_puts(const char *s);
 #else
 static inline void support_card_reset(void)
 {
@@ -29,6 +30,10 @@
 {
 	return 0;
 }
+
+static inline void led_puts(const char *s)
+{
+}
 #endif
 
 #endif /* ARCH_BOARD_H */