sh: Exception vector rework and SH-2/SH-2A support.

[uclinux-h8/linux.git] / arch / sh / kernel / head.S

diff --git a/arch/sh/kernel/head.S b/arch/sh/kernel/head.S
index f5f53d1..b5ff232 100644 (file)
--- a/arch/sh/kernel/head.S
+++ b/arch/sh/kernel/head.S
@@ -53,8 +53,10 @@ ENTRY(_stext)
        ldc     r0, sr
        !                       Initialize global interrupt mask
        mov     #0, r0
+#ifdef CONFIG_CPU_HAS_SR_RB
        ldc     r0, r6_bank
-
+#endif
+       
        /*
         * Prefetch if possible to reduce cache miss penalty.
         *
@@ -71,8 +73,10 @@ ENTRY(_stext)
        mov     #(THREAD_SIZE >> 8), r1
        shll8   r1              ! r1 = THREAD_SIZE
        sub     r1, r0          !
+#ifdef CONFIG_CPU_HAS_SR_RB
        ldc     r0, r7_bank     ! ... and initial thread_info
-
+#endif
+       
        !                       Clear BSS area
        mov.l   3f, r1
        add     #4, r1
@@ -95,7 +99,11 @@ ENTRY(_stext)
         nop
 
        .balign 4
+#if defined(CONFIG_CPU_SH2)
+1:     .long   0x000000F0              ! IMASK=0xF
+#else
 1:     .long   0x400080F0              ! MD=1, RB=0, BL=0, FD=1, IMASK=0xF
+#endif
 2:     .long   init_thread_union+THREAD_SIZE
 3:     .long   __bss_start
 4:     .long   _end