File-copy from v4.4.100

This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Please refer to that tree for all history prior to this point.

Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/include/linux/zorro.h b/include/linux/zorro.h
new file mode 100644
index 0000000..63fbba0
--- /dev/null
+++ b/include/linux/zorro.h
@@ -0,0 +1,151 @@
+/*
+ *  linux/zorro.h -- Amiga AutoConfig (Zorro) Bus Definitions
+ *
+ *  Copyright (C) 1995--2003 Geert Uytterhoeven
+ *
+ *  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.
+ */
+
+#ifndef _LINUX_ZORRO_H
+#define _LINUX_ZORRO_H
+
+
+#include <uapi/linux/zorro.h>
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/mod_devicetable.h>
+
+#include <asm/zorro.h>
+
+
+    /*
+     *  Zorro devices
+     */
+
+struct zorro_dev {
+    struct ExpansionRom rom;
+    zorro_id id;
+    struct zorro_driver *driver;	/* which driver has allocated this device */
+    struct device dev;			/* Generic device interface */
+    u16 slotaddr;
+    u16 slotsize;
+    char name[64];
+    struct resource resource;
+};
+
+#define	to_zorro_dev(n)	container_of(n, struct zorro_dev, dev)
+
+
+    /*
+     *  Zorro bus
+     */
+
+extern struct bus_type zorro_bus_type;
+
+
+    /*
+     *  Zorro device drivers
+     */
+
+struct zorro_driver {
+    struct list_head node;
+    char *name;
+    const struct zorro_device_id *id_table;	/* NULL if wants all devices */
+    int (*probe)(struct zorro_dev *z, const struct zorro_device_id *id);	/* New device inserted */
+    void (*remove)(struct zorro_dev *z);	/* Device removed (NULL if not a hot-plug capable driver) */
+    struct device_driver driver;
+};
+
+#define	to_zorro_driver(drv)	container_of(drv, struct zorro_driver, driver)
+
+
+#define zorro_for_each_dev(dev)	\
+	for (dev = &zorro_autocon[0]; dev < zorro_autocon+zorro_num_autocon; dev++)
+
+
+/* New-style probing */
+extern int zorro_register_driver(struct zorro_driver *);
+extern void zorro_unregister_driver(struct zorro_driver *);
+extern const struct zorro_device_id *zorro_match_device(const struct zorro_device_id *ids, const struct zorro_dev *z);
+static inline struct zorro_driver *zorro_dev_driver(const struct zorro_dev *z)
+{
+    return z->driver;
+}
+
+
+extern unsigned int zorro_num_autocon;	/* # of autoconfig devices found */
+extern struct zorro_dev *zorro_autocon;
+
+
+    /*
+     * Minimal information about a Zorro device, passed from bootinfo
+     * Only available temporarily, i.e. until initmem has been freed!
+     */
+
+struct zorro_dev_init {
+	struct ExpansionRom rom;
+	u16 slotaddr;
+	u16 slotsize;
+	u32 boardaddr;
+	u32 boardsize;
+};
+
+extern struct zorro_dev_init zorro_autocon_init[ZORRO_NUM_AUTO] __initdata;
+
+
+    /*
+     *  Zorro Functions
+     */
+
+extern struct zorro_dev *zorro_find_device(zorro_id id,
+					   struct zorro_dev *from);
+
+#define zorro_resource_start(z)	((z)->resource.start)
+#define zorro_resource_end(z)	((z)->resource.end)
+#define zorro_resource_len(z)	(resource_size(&(z)->resource))
+#define zorro_resource_flags(z)	((z)->resource.flags)
+
+#define zorro_request_device(z, name) \
+    request_mem_region(zorro_resource_start(z), zorro_resource_len(z), name)
+#define zorro_release_device(z) \
+    release_mem_region(zorro_resource_start(z), zorro_resource_len(z))
+
+/* Similar to the helpers above, these manipulate per-zorro_dev
+ * driver-specific data.  They are really just a wrapper around
+ * the generic device structure functions of these calls.
+ */
+static inline void *zorro_get_drvdata (struct zorro_dev *z)
+{
+	return dev_get_drvdata(&z->dev);
+}
+
+static inline void zorro_set_drvdata (struct zorro_dev *z, void *data)
+{
+	dev_set_drvdata(&z->dev, data);
+}
+
+
+    /*
+     *  Bitmask indicating portions of available Zorro II RAM that are unused
+     *  by the system. Every bit represents a 64K chunk, for a maximum of 8MB
+     *  (128 chunks, physical 0x00200000-0x009fffff).
+     *
+     *  If you want to use (= allocate) portions of this RAM, you should clear
+     *  the corresponding bits.
+     */
+
+extern DECLARE_BITMAP(zorro_unused_z2ram, 128);
+
+#define Z2RAM_START		(0x00200000)
+#define Z2RAM_END		(0x00a00000)
+#define Z2RAM_SIZE		(0x00800000)
+#define Z2RAM_CHUNKSIZE		(0x00010000)
+#define Z2RAM_CHUNKMASK		(0x0000ffff)
+#define Z2RAM_CHUNKSHIFT	(16)
+
+
+#endif /* _LINUX_ZORRO_H */