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| author | Paul Mundt <lethal@linux-sh.org> | 2006-12-11 20:29:28 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2006-12-12 08:42:09 +0900 |
| commit | 1dc417d0390b4897dc1d9bbf335e325baecae2c3 (patch) | |
| tree | ff0a863d54b1955e19c00ec046a8afc5e5383f49 /arch/sh/kernel/entry-common.S | |
| parent | 41504c39726a7099e5a42508dd57fe561c8b4129 (diff) | |
| download | kernel_samsung_smdk4412-1dc417d0390b4897dc1d9bbf335e325baecae2c3.zip kernel_samsung_smdk4412-1dc417d0390b4897dc1d9bbf335e325baecae2c3.tar.gz kernel_samsung_smdk4412-1dc417d0390b4897dc1d9bbf335e325baecae2c3.tar.bz2 | |
sh: Fixup sh_bios() trap handling.
This was inadvertently broken when the entry.S code split up,
restore the missing branch and get subsequent traps working
under debug again. This manifested itself as a lockup when
attempting to reload the VBR base.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/entry-common.S')
| -rw-r--r-- | arch/sh/kernel/entry-common.S | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S index 29136a3..fc279ae 100644 --- a/arch/sh/kernel/entry-common.S +++ b/arch/sh/kernel/entry-common.S @@ -79,18 +79,29 @@ debug_kernel_sw: .align 2 3: .long kgdb_handle_exception #endif /* CONFIG_SH_KGDB */ - +#ifdef CONFIG_SH_STANDARD_BIOS + bra debug_kernel_fw + nop +#endif #endif /* CONFIG_SH_STANDARD_BIOS || CONFIG_SH_KGDB */ - .align 2 debug_trap: #if defined(CONFIG_SH_STANDARD_BIOS) || defined(CONFIG_SH_KGDB) + mov r8, r0 + shlr2 r0 + cmp/eq #0x3f, r0 ! sh_bios() trap + bf 1f +#ifdef CONFIG_SH_KGDB + cmp/eq #0xff, r0 ! XXX: KGDB trap, fix for SH-2. + bf 1f +#endif mov #OFF_SR, r0 mov.l @(r0,r15), r0 ! get status register shll r0 shll r0 ! kernel space? bt/s debug_kernel +1: #endif mov.l @r15, r0 ! Restore R0 value mov.l 1f, r8 |