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/usr/src/linux-headers-5.15.0-190/include/linux/mtd/

/usr/src/linux-headers-5.15.0-190/include/linux/mtd

Name	Size	Mode	Actions
bbm.h	4825	0644	edit dl rm
blktrans.h	2682	0644	edit dl rm
cfi.h	10144	0644	edit dl rm
cfi_endian.h	1514	0644	edit dl rm
concat.h	493	0644	edit dl rm
doc2000.h	5505	0644	edit dl rm
flashchip.h	2478	0644	edit dl rm
ftl.h	2551	0644	edit dl rm
gen_probe.h	615	0644	edit dl rm
hyperbus.h	2893	0644	edit dl rm
inftl.h	1599	0644	edit dl rm
jedec.h	1905	0644	edit dl rm
latch-addr-flash.h	716	0644	edit dl rm
lpc32xx_mlc.h	385	0644	edit dl rm
lpc32xx_slc.h	385	0644	edit dl rm
map.h	13016	0644	edit dl rm
mtd.h	22569	0644	edit dl rm
mtdram.h	257	0644	edit dl rm
nand-ecc-sw-bch.h	2117	0644	edit dl rm
nand-ecc-sw-hamming.h	2717	0644	edit dl rm
nand-gpio.h	330	0644	edit dl rm
nand.h	30284	0644	edit dl rm
ndfc.h	2070	0644	edit dl rm
nftl.h	1734	0644	edit dl rm
onenand.h	7974	0644	edit dl rm
onenand_regs.h	7217	0644	edit dl rm
onfi.h	4962	0644	edit dl rm
partitions.h	3946	0644	edit dl rm
pfow.h	4489	0644	edit dl rm
physmap.h	808	0644	edit dl rm
pismo.h	271	0644	edit dl rm
plat-ram.h	668	0644	edit dl rm
platnand.h	2545	0644	edit dl rm
qinfo.h	2530	0644	edit dl rm
rawnand.h	52400	0644	edit dl rm
sharpsl.h	485	0644	edit dl rm
sh_flctl.h	5927	0644	edit dl rm
spear_smi.h	1714	0644	edit dl rm
spi-nor.h	17247	0644	edit dl rm
spinand.h	16220	0644	edit dl rm
super.h	578	0644	edit dl rm
ubi.h	9914	0644	edit dl rm
xip.h	2556	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-190/include/linux/mtd/hyperbus.h (2893B)

/* SPDX-License-Identifier: GPL-2.0
 *
 * Copyright (C) 2019 Texas Instruments Incorporated - https://www.ti.com/
 */

#ifndef __LINUX_MTD_HYPERBUS_H__
#define __LINUX_MTD_HYPERBUS_H__

#include <linux/mtd/map.h>

/* HyperBus command bits */
#define HYPERBUS_RW	0x80	/* R/W# */
#define HYPERBUS_RW_WRITE 0
#define HYPERBUS_RW_READ 0x80
#define HYPERBUS_AS	0x40	/* Address Space */
#define HYPERBUS_AS_MEM	0
#define HYPERBUS_AS_REG	0x40
#define HYPERBUS_BT	0x20	/* Burst Type */
#define HYPERBUS_BT_WRAPPED 0
#define HYPERBUS_BT_LINEAR 0x20

enum hyperbus_memtype {
	HYPERFLASH,
	HYPERRAM,
};

/**
 * struct hyperbus_device - struct representing HyperBus slave device
 * @map: map_info struct for accessing MMIO HyperBus flash memory
 * @np: pointer to HyperBus slave device node
 * @mtd: pointer to MTD struct
 * @ctlr: pointer to HyperBus controller struct
 * @memtype: type of memory device: HyperFlash or HyperRAM
 * @priv: pointer to controller specific per device private data
 */

struct hyperbus_device {
	struct map_info map;
	struct device_node *np;
	struct mtd_info *mtd;
	struct hyperbus_ctlr *ctlr;
	enum hyperbus_memtype memtype;
	void *priv;
};

/**
 * struct hyperbus_ops - struct representing custom HyperBus operations
 * @read16: read 16 bit of data from flash in a single burst. Used to read
 *          from non default address space, such as ID/CFI space
 * @write16: write 16 bit of data to flash in a single burst. Used to
 *           send cmd to flash or write single 16 bit word at a time.
 * @copy_from: copy data from flash memory
 * @copy_to: copy data to flash memory
 * @calibrate: calibrate HyperBus controller
 */

struct hyperbus_ops {
	u16 (*read16)(struct hyperbus_device *hbdev, unsigned long addr);
	void (*write16)(struct hyperbus_device *hbdev,
			unsigned long addr, u16 val);
	void (*copy_from)(struct hyperbus_device *hbdev, void *to,
			  unsigned long from, ssize_t len);
	void (*copy_to)(struct hyperbus_device *dev, unsigned long to,
			const void *from, ssize_t len);
	int (*calibrate)(struct hyperbus_device *dev);
};

/**
 * struct hyperbus_ctlr - struct representing HyperBus controller
 * @dev: pointer to HyperBus controller device
 * @calibrated: flag to indicate ctlr calibration sequence is complete
 * @ops: HyperBus controller ops
 */
struct hyperbus_ctlr {
	struct device *dev;
	bool calibrated;

const struct hyperbus_ops *ops;
};

/**
 * hyperbus_register_device - probe and register a HyperBus slave memory device
 * @hbdev: hyperbus_device struct with dev, np and ctlr field populated
 *
 * Return: 0 for success, others for failure.
 */
int hyperbus_register_device(struct hyperbus_device *hbdev);

/**
 * hyperbus_unregister_device - deregister HyperBus slave memory device
 * @hbdev: hyperbus_device to be unregistered
 */
void hyperbus_unregister_device(struct hyperbus_device *hbdev);

#endif /* __LINUX_MTD_HYPERBUS_H__ */

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