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authorPaul Mundt <lethal@linux-sh.org>2008-07-29 21:01:19 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-07-29 21:01:19 +0900
commitda2014a2b080e7f3024a4eb6917d47069ad9620b (patch)
treecfde12c6d4b5baa222966b14a676f107992cf786 /arch/sh/boards/mach-hp6xx/pm_wakeup.S
parent71b8064e7df5698520d73b4c1566a3dbc98eb9ef (diff)
sh: Shuffle the board directories in to mach groups.
This flattens out the board directories in to individual mach groups, we will use this for getting rid of unneeded directories, simplifying the build system, and becoming more coherent with the refactored arch/sh/include topology. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/boards/mach-hp6xx/pm_wakeup.S')
-rw-r--r--arch/sh/boards/mach-hp6xx/pm_wakeup.S58
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-hp6xx/pm_wakeup.S b/arch/sh/boards/mach-hp6xx/pm_wakeup.S
new file mode 100644
index 000000000000..44b648cf6f23
--- /dev/null
+++ b/arch/sh/boards/mach-hp6xx/pm_wakeup.S
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ */
+
+#include <linux/linkage.h>
+#include <cpu/mmu_context.h>
+
+#define k0 r0
+#define k1 r1
+#define k2 r2
+#define k3 r3
+#define k4 r4
+
+/*
+ * Kernel mode register usage:
+ * k0 scratch
+ * k1 scratch
+ * k2 scratch (Exception code)
+ * k3 scratch (Return address)
+ * k4 scratch
+ * k5 reserved
+ * k6 Global Interrupt Mask (0--15 << 4)
+ * k7 CURRENT_THREAD_INFO (pointer to current thread info)
+ */
+
+ENTRY(wakeup_start)
+! clear STBY bit
+ mov #-126, k2
+ and #127, k0
+ mov.b k0, @k2
+! enable refresh
+ mov.l 5f, k1
+ mov.w 6f, k0
+ mov.w k0, @k1
+! jump to handler
+ mov.l 2f, k2
+ mov.l 3f, k3
+ mov.l @k2, k2
+
+ mov.l 4f, k1
+ jmp @k1
+ nop
+
+ .align 2
+1: .long EXPEVT
+2: .long INTEVT
+3: .long ret_from_irq
+4: .long handle_exception
+5: .long 0xffffff68
+6: .word 0x0524
+
+ENTRY(wakeup_end)
+ nop