sh: Add macros for SH-4A 32-Bit Address Extended Mode

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

include/asm-sh/cpu_sh4.h

@@ -54,4 +54,29 @@
 # error "Unknown SH4 variant"
 #endif
 
+#if defined(CONFIG_SH_32BIT)
+#define PMB_ADDR_ARRAY		0xf6100000
+#define PMB_ADDR_ENTRY		8
+#define PMB_VPN			24
+
+#define PMB_DATA_ARRAY		0xf7100000
+#define PMB_DATA_ENTRY		8
+#define PMB_PPN			24
+#define PMB_UB			9		/* Buffered write */
+#define PMB_V			8		/* Valid */
+#define PMB_SZ1			7		/* Page size (upper bit) */
+#define PMB_SZ0			4		/* Page size (lower bit) */
+#define PMB_C			3		/* Cacheability */
+#define PMB_WT			0		/* Write-through */
+
+#define PMB_ADDR_BASE(entry)	(PMB_ADDR_ARRAY + (entry << PMB_ADDR_ENTRY))
+#define PMB_DATA_BASE(entry)	(PMB_DATA_ARRAY + (entry << PMB_DATA_ENTRY))
+#define mk_pmb_addr_val(vpn)	((vpn << PMB_VPN))
+#define mk_pmb_data_val(ppn, ub, v, sz1, sz0, c, wt)	\
+				((ppn << PMB_PPN) | (ub << PMB_UB) | \
+				 (v << PMB_V) | (sz1 << PMB_SZ1) | \
+				 (sz0 << PMB_SZ0) | (c << PMB_C) | \
+				 (wt << PMB_WT))
+#endif
+
 #endif	/* _ASM_CPU_SH4_H_ */