Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / arm / plat-orion / include / plat / mpp.h

diff --git a/kernel/arch/arm/plat-orion/include/plat/mpp.h b/kernel/arch/arm/plat-orion/include/plat/mpp.h
new file mode 100644 (file)
index 0000000..254552f
--- /dev/null
+++ b/kernel/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, void __iomem *dev_bus);
+
+#endif