sh: remove support for sh7300 and solution engine 7300

This patch removes old dead code:
- kill off sh7300 cpu support
- get rid of broken solution engine 7300 board support

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/include/asm-sh/cpu-sh3/freq.h b/include/asm-sh/cpu-sh3/freq.h
index 273f322..0a054b5 100644
--- a/include/asm-sh/cpu-sh3/freq.h
+++ b/include/asm-sh/cpu-sh3/freq.h
@@ -10,11 +10,7 @@
 #ifndef __ASM_CPU_SH3_FREQ_H
 #define __ASM_CPU_SH3_FREQ_H
 
-#if defined(CONFIG_CPU_SUBTYPE_SH7300)
-#define FRQCR			0xa415ff80
-#else
 #define FRQCR			0xffffff80
-#endif
 #define MIN_DIVISOR_NR		0
 #define MAX_DIVISOR_NR		4
 
diff --git a/include/asm-sh/cpu-sh3/mmu_context.h b/include/asm-sh/cpu-sh3/mmu_context.h
index 4704e86..b20786d 100644
--- a/include/asm-sh/cpu-sh3/mmu_context.h
+++ b/include/asm-sh/cpu-sh3/mmu_context.h
@@ -30,7 +30,6 @@
 #if defined(CONFIG_CPU_SUBTYPE_SH7707) || \
     defined(CONFIG_CPU_SUBTYPE_SH7709) || \
     defined(CONFIG_CPU_SUBTYPE_SH7706) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7300) || \
     defined(CONFIG_CPU_SUBTYPE_SH7705) || \
     defined(CONFIG_CPU_SUBTYPE_SH7712) || \
     defined(CONFIG_CPU_SUBTYPE_SH7710)
diff --git a/include/asm-sh/cpu-sh3/timer.h b/include/asm-sh/cpu-sh3/timer.h
index 4928b08..b6c2020 100644
--- a/include/asm-sh/cpu-sh3/timer.h
+++ b/include/asm-sh/cpu-sh3/timer.h
@@ -19,7 +19,6 @@
  *	SH7729R
  *	SH7710
  *	SH7720
- *	SH7300
  *	SH7710
  * ---------------------------------------------------------------------------
  */
@@ -28,7 +27,7 @@
 #define TMU_TOCR	0xfffffe90	/* Byte access */
 #endif
 
-#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7710)
+#if defined(CONFIG_CPU_SUBTYPE_SH7710)
 #define TMU_012_TSTR	0xa412fe92	/* Byte access */
 
 #define TMU0_TCOR	0xa412fe94	/* Long access */