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-rw-r--r--kernel/include/linux/jz4780-nemc.h43
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diff --git a/kernel/include/linux/jz4780-nemc.h b/kernel/include/linux/jz4780-nemc.h
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+/*
+ * JZ4780 NAND/external memory controller (NEMC)
+ *
+ * Copyright (c) 2015 Imagination Technologies
+ * Author: Alex Smith <alex@alex-smith.me.uk>
+ *
+ * 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.
+ */
+
+#ifndef __LINUX_JZ4780_NEMC_H__
+#define __LINUX_JZ4780_NEMC_H__
+
+#include <linux/types.h>
+
+struct device;
+
+/*
+ * Number of NEMC banks. Note that there are actually 6, but they are numbered
+ * from 1.
+ */
+#define JZ4780_NEMC_NUM_BANKS 7
+
+/**
+ * enum jz4780_nemc_bank_type - device types which can be connected to a bank
+ * @JZ4780_NEMC_BANK_SRAM: SRAM
+ * @JZ4780_NEMC_BANK_NAND: NAND
+ */
+enum jz4780_nemc_bank_type {
+ JZ4780_NEMC_BANK_SRAM,
+ JZ4780_NEMC_BANK_NAND,
+};
+
+extern unsigned int jz4780_nemc_num_banks(struct device *dev);
+
+extern void jz4780_nemc_set_type(struct device *dev, unsigned int bank,
+ enum jz4780_nemc_bank_type type);
+extern void jz4780_nemc_assert(struct device *dev, unsigned int bank,
+ bool assert);
+
+#endif /* __LINUX_JZ4780_NEMC_H__ */