2 * linux/include/amba/bus.h
4 * This device type deals with ARM PrimeCells and anything else that
5 * presents a proper CID (0xB105F00D) at the end of the I/O register
6 * region or that is derived from a PrimeCell.
8 * Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
17 #include <linux/clk.h>
18 #include <linux/device.h>
19 #include <linux/err.h>
20 #include <linux/resource.h>
22 #define AMBA_NR_IRQS 2
31 unsigned int periphid;
32 unsigned int irq[AMBA_NR_IRQS];
42 struct device_driver drv;
43 int (*probe)(struct amba_device *, struct amba_id *);
44 int (*remove)(struct amba_device *);
45 void (*shutdown)(struct amba_device *);
46 int (*suspend)(struct amba_device *, pm_message_t);
47 int (*resume)(struct amba_device *);
48 struct amba_id *id_table;
52 AMBA_VENDOR_ARM = 0x41,
53 AMBA_VENDOR_ST = 0x80,
56 #define amba_get_drvdata(d) dev_get_drvdata(&d->dev)
57 #define amba_set_drvdata(d,p) dev_set_drvdata(&d->dev, p)
59 int amba_driver_register(struct amba_driver *);
60 void amba_driver_unregister(struct amba_driver *);
61 int amba_device_register(struct amba_device *, struct resource *);
62 void amba_device_unregister(struct amba_device *);
63 struct amba_device *amba_find_device(const char *, struct device *, unsigned int, unsigned int);
64 int amba_request_regions(struct amba_device *, const char *);
65 void amba_release_regions(struct amba_device *);
67 #define amba_pclk_enable(d) \
68 (IS_ERR((d)->pclk) ? 0 : clk_enable((d)->pclk))
70 #define amba_pclk_disable(d) \
71 do { if (!IS_ERR((d)->pclk)) clk_disable((d)->pclk); } while (0)
73 #define amba_config(d) (((d)->periphid >> 24) & 0xff)
74 #define amba_rev(d) (((d)->periphid >> 20) & 0x0f)
75 #define amba_manf(d) (((d)->periphid >> 12) & 0xff)
76 #define amba_part(d) ((d)->periphid & 0xfff)