FM / amba

/usr/src/kernels/4.18.0-553.157.1.el8_10.x86_64/include/linux/amba/

/usr/src/kernels/4.18.0-553.157.1.el8_10.x86_64/include/linux/amba

Name	Size	Mode	Actions
bus.h	5867	0644	edit dl rm
clcd-regs.h	2420	0644	edit dl rm
clcd.h	8105	0644	edit dl rm
kmi.h	2943	0644	edit dl rm
mmci.h	1281	0644	edit dl rm
pl022.h	8913	0644	edit dl rm
pl08x.h	4594	0644	edit dl rm
pl080.h	7726	0644	edit dl rm
pl093.h	2224	0644	edit dl rm
serial.h	9921	0644	edit dl rm
sp810.h	1526	0644	edit dl rm

Edit: /usr/src/kernels/4.18.0-553.157.1.el8_10.x86_64/include/linux/amba/bus.h (5867B)

/*
 *  linux/include/amba/bus.h
 *
 *  This device type deals with ARM PrimeCells and anything else that
 *  presents a proper CID (0xB105F00D) at the end of the I/O register
 *  region or that is derived from a PrimeCell.
 *
 *  Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#ifndef ASMARM_AMBA_H
#define ASMARM_AMBA_H

#include <linux/clk.h>
#include <linux/device.h>
#include <linux/mod_devicetable.h>
#include <linux/err.h>
#include <linux/resource.h>
#include <linux/regulator/consumer.h>

#define AMBA_NR_IRQS	9
#define AMBA_CID	0xb105f00d
#define CORESIGHT_CID	0xb105900d

struct clk;

struct amba_device {
	struct device		dev;
	struct resource		res;
	struct clk		*pclk;
	unsigned int		periphid;
	unsigned int		irq[AMBA_NR_IRQS];
	char			*driver_override;
};

struct amba_driver {
	struct device_driver	drv;
	int			(*probe)(struct amba_device *, const struct amba_id *);
	int			(*remove)(struct amba_device *);
	void			(*shutdown)(struct amba_device *);
	const struct amba_id	*id_table;
};

/*
 * Constants for the designer field of the Peripheral ID register. When bit 7
 * is set to '1', bits [6:0] should be the JEP106 manufacturer identity code.
 */
enum amba_vendor {
	AMBA_VENDOR_ARM = 0x41,
	AMBA_VENDOR_ST = 0x80,
	AMBA_VENDOR_QCOM = 0x51,
	AMBA_VENDOR_LSI = 0xb6,
	AMBA_VENDOR_LINUX = 0xfe,	/* This value is not official */
};

/* This is used to generate pseudo-ID for AMBA device */
#define AMBA_LINUX_ID(conf, rev, part) \
	(((conf) & 0xff) << 24 | ((rev) & 0xf) << 20 | \
	AMBA_VENDOR_LINUX << 12 | ((part) & 0xfff))

extern struct bus_type amba_bustype;

#define to_amba_device(d)	container_of(d, struct amba_device, dev)

#define amba_get_drvdata(d)	dev_get_drvdata(&d->dev)
#define amba_set_drvdata(d,p)	dev_set_drvdata(&d->dev, p)

int amba_driver_register(struct amba_driver *);
void amba_driver_unregister(struct amba_driver *);
struct amba_device *amba_device_alloc(const char *, resource_size_t, size_t);
void amba_device_put(struct amba_device *);
int amba_device_add(struct amba_device *, struct resource *);
int amba_device_register(struct amba_device *, struct resource *);
struct amba_device *amba_apb_device_add(struct device *parent, const char *name,
					resource_size_t base, size_t size,
					int irq1, int irq2, void *pdata,
					unsigned int periphid);
struct amba_device *amba_ahb_device_add(struct device *parent, const char *name,
					resource_size_t base, size_t size,
					int irq1, int irq2, void *pdata,
					unsigned int periphid);
struct amba_device *
amba_apb_device_add_res(struct device *parent, const char *name,
			resource_size_t base, size_t size, int irq1,
			int irq2, void *pdata, unsigned int periphid,
			struct resource *resbase);
struct amba_device *
amba_ahb_device_add_res(struct device *parent, const char *name,
			resource_size_t base, size_t size, int irq1,
			int irq2, void *pdata, unsigned int periphid,
			struct resource *resbase);
void amba_device_unregister(struct amba_device *);
struct amba_device *amba_find_device(const char *, struct device *, unsigned int, unsigned int);
int amba_request_regions(struct amba_device *, const char *);
void amba_release_regions(struct amba_device *);

static inline int amba_pclk_enable(struct amba_device *dev)
{
	return clk_enable(dev->pclk);
}

static inline void amba_pclk_disable(struct amba_device *dev)
{
	clk_disable(dev->pclk);
}

static inline int amba_pclk_prepare(struct amba_device *dev)
{
	return clk_prepare(dev->pclk);
}

static inline void amba_pclk_unprepare(struct amba_device *dev)
{
	clk_unprepare(dev->pclk);
}

/* Some drivers don't use the struct amba_device */
#define AMBA_CONFIG_BITS(a) (((a) >> 24) & 0xff)
#define AMBA_REV_BITS(a) (((a) >> 20) & 0x0f)
#define AMBA_MANF_BITS(a) (((a) >> 12) & 0xff)
#define AMBA_PART_BITS(a) ((a) & 0xfff)

#define amba_config(d)	AMBA_CONFIG_BITS((d)->periphid)
#define amba_rev(d)	AMBA_REV_BITS((d)->periphid)
#define amba_manf(d)	AMBA_MANF_BITS((d)->periphid)
#define amba_part(d)	AMBA_PART_BITS((d)->periphid)

#define __AMBA_DEV(busid, data, mask)				\
	{							\
		.coherent_dma_mask = mask,			\
		.init_name = busid,				\
		.platform_data = data,				\
	}

/*
 * APB devices do not themselves have the ability to address memory,
 * so DMA masks should be zero (much like USB peripheral devices.)
 * The DMA controller DMA masks should be used instead (much like
 * USB host controllers in conventional PCs.)
 */
#define AMBA_APB_DEVICE(name, busid, id, base, irqs, data)	\
struct amba_device name##_device = {				\
	.dev = __AMBA_DEV(busid, data, 0),			\
	.res = DEFINE_RES_MEM(base, SZ_4K),			\
	.irq = irqs,						\
	.periphid = id,						\
}

/*
 * AHB devices are DMA capable, so set their DMA masks
 */
#define AMBA_AHB_DEVICE(name, busid, id, base, irqs, data)	\
struct amba_device name##_device = {				\
	.dev = __AMBA_DEV(busid, data, ~0ULL),			\
	.res = DEFINE_RES_MEM(base, SZ_4K),			\
	.irq = irqs,						\
	.periphid = id,						\
}

/*
 * module_amba_driver() - Helper macro for drivers that don't do anything
 * special in module init/exit.  This eliminates a lot of boilerplate.  Each
 * module may only use this macro once, and calling it replaces module_init()
 * and module_exit()
 */
#define module_amba_driver(__amba_drv) \
	module_driver(__amba_drv, amba_driver_register, amba_driver_unregister)

/*
 * builtin_amba_driver() - Helper macro for drivers that don't do anything
 * special in driver initcall.  This eliminates a lot of boilerplate.  Each
 * driver may only use this macro once, and calling it replaces the instance
 * device_initcall().
 */
#define builtin_amba_driver(__amba_drv) \
	builtin_driver(__amba_drv, amba_driver_register)

#endif

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