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!
diff --git a/arch/sh/kernel/cpu/ubc.S b/arch/sh/kernel/cpu/ubc.S
new file mode 100644
index 0000000..0c569b2
--- /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 <linux/linkage.h>
+#include <asm/ubc.h>
+
+#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
+