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authorAndrew Lunn <andrew@lunn.ch>2011-05-15 15:32:52 +0400
committerNicolas Pitre <nico@fluxnic.net>2011-05-16 23:25:54 +0400
commitb2f427a1088a9ad4f86855f4df1fc059bebb441f (patch)
tree61508b83eabb956e6ab1255110689485151872b3 /arch/arm/plat-orion/include
parent44350061905b2a502579d3827eacaf8efa393aad (diff)
downloadlinux-b2f427a1088a9ad4f86855f4df1fc059bebb441f.tar.xz
ARM: orion: Refactor the MPP code common in the orion platform
mv78xx0 and kirkwood use identical mpp code. It should also be possible to rewrite the orion5x mpp to use this platform code. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Diffstat (limited to 'arch/arm/plat-orion/include')
-rw-r--r--arch/arm/plat-orion/include/plat/mpp.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/plat-orion/include/plat/mpp.h b/arch/arm/plat-orion/include/plat/mpp.h
new file mode 100644
index 000000000000..723adce99f41
--- /dev/null
+++ b/arch/arm/plat-orion/include/plat/mpp.h
@@ -0,0 +1,34 @@
+/*
+ * arch/arm/plat-orion/include/plat/mpp.h
+ *
+ * Marvell Orion SoC MPP handling.
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __PLAT_MPP_H
+#define __PLAT_MPP_H
+
+#define MPP_NUM(x) ((x) & 0xff)
+#define MPP_SEL(x) (((x) >> 8) & 0xf)
+
+/* This is the generic MPP macro, without any variant information.
+ Each machine architecture is expected to extend this with further
+ bit fields indicating which MPP configurations are valid for a
+ specific variant. */
+
+#define GENERIC_MPP(_num, _sel, _in, _out) ( \
+ /* MPP number */ ((_num) & 0xff) | \
+ /* MPP select value */ (((_sel) & 0xf) << 8) | \
+ /* may be input signal */ ((!!(_in)) << 12) | \
+ /* may be output signal */ ((!!(_out)) << 13))
+
+#define MPP_INPUT_MASK GENERIC_MPP(0, 0x0, 1, 0)
+#define MPP_OUTPUT_MASK GENERIC_MPP(0, 0x0, 0, 1)
+
+void __init orion_mpp_conf(unsigned int *mpp_list, unsigned int variant_mask,
+ unsigned int mpp_max, unsigned int dev_bus);
+
+#endif