aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/plat-orion/include/plat/mpp.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/plat-orion/include/plat/mpp.h')
-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 00000000000..723adce99f4
--- /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