From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- arch/sh/kernel/cpu/ubc.S | 59 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 arch/sh/kernel/cpu/ubc.S (limited to 'arch/sh/kernel/cpu/ubc.S') diff --git a/arch/sh/kernel/cpu/ubc.S b/arch/sh/kernel/cpu/ubc.S new file mode 100644 index 00000000000..0c569b20e1c --- /dev/null +++ b/arch/sh/kernel/cpu/ubc.S @@ -0,0 +1,59 @@ +/* + * arch/sh/kernel/ubc.S + * + * Set of management routines for the User Break Controller (UBC) + * + * Copyright (C) 2002 Paul Mundt + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ +#include +#include + +#define STBCR2 0xffc00010 + +ENTRY(ubc_sleep) + mov #0, r0 + + mov.l 1f, r1 ! Zero out UBC_BBRA .. + mov.w r0, @r1 + + mov.l 2f, r1 ! .. same for BBRB .. + mov.w r0, @r1 + + mov.l 3f, r1 ! .. and again for BRCR. + mov.w r0, @r1 + + mov.w @r1, r0 ! Dummy read BRCR + + mov.l 4f, r1 ! Set MSTP5 in STBCR2 + mov.b @r1, r0 + or #0x01, r0 + mov.b r0, @r1 + + mov.b @r1, r0 ! Two dummy reads .. + mov.b @r1, r0 + + rts + nop + +ENTRY(ubc_wakeup) + mov.l 4f, r1 ! Clear MSTP5 + mov.b @r1, r0 + and #0xfe, r0 + mov.b r0, @r1 + + mov.b @r1, r0 ! Two more dummy reads .. + mov.b @r1, r0 + + rts + nop + +1: .long UBC_BBRA +2: .long UBC_BBRB +3: .long UBC_BRCR +4: .long STBCR2 + -- cgit v1.2.3-70-g09d2