sh: CONFIG_PMB doesn't mean the MMU is in 32bit mode

CONFIG_PMB will eventually allow the MMU to be switched between 29-bit
and 32-bit mode dynamically at runtime.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/kernel/head_32.S

@@ -33,7 +33,7 @@ ENTRY(empty_zero_page)
 	.long	1		/* LOADER_TYPE */
 	.long	0x00000000	/* INITRD_START */
 	.long	0x00000000	/* INITRD_SIZE */
-#ifdef CONFIG_32BIT
+#if defined(CONFIG_32BIT) && defined(CONFIG_PMB_FIXED)
 	.long	0x53453f00 + 32	/* "SE?" = 32 bit */
 #else
 	.long	0x53453f00 + 29	/* "SE?" = 29 bit */

arch/sh/mm/Kconfig

@@ -83,7 +83,6 @@ config 32BIT
 config PMB_ENABLE
 	bool "Support 32-bit physical addressing through PMB"
 	depends on MMU && EXPERIMENTAL && (CPU_SUBTYPE_SH7757 || CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785)
-	select 32BIT
 	default y
 	help
 	  If you say Y here, physical addressing will be extended to
@@ -98,7 +97,6 @@ choice
 config PMB
 	bool "PMB"
 	depends on MMU && EXPERIMENTAL && (CPU_SUBTYPE_SH7757 || CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785)
-	select 32BIT
 	help
 	  If you say Y here, physical addressing will be extended to
 	  32-bits through the SH-4A PMB. If this is not set, legacy