Remove NAND and NANDFS support

NANDFS has been broken for years. Remove it. The NAND drivers that
remain are for ancient parts that are no longer relevant. They are
polled, have terrible performance and just for ancient arm
hardware. NAND parts have evolved significantly from this early work
and little to none of it would be relevant should someone need to
update to support raw nand. This code has been off by default for
years and has violated the vnode protocol leading to panics since it
was committed.

Numerous posts to arch@ and other locations have found no actual users
for this software.

Relnotes:	Yes
No Objection From: arch@
Differential Revision: https://reviews.freebsd.org/D20745

1 files changed, 0 insertions, 92 deletions

diff --git a/sys/dev/nand/nand_dev.h b/sys/dev/nand/nand_dev.h
deleted file mode 100644
index bd00c4d4b3b4..000000000000
--- a/sys/dev/nand/nand_dev.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
- *
- * Copyright (C) 2009-2012 Semihalf
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-#ifndef _DEV_NAND_CDEV_H_
-#define _DEV_NAND_CDEV_H_
-
-#include <sys/ioccom.h>
-#include <sys/param.h>
-
-struct nand_raw_rw {
-	off_t	off;
-	off_t	len;
-	uint8_t	*data;
-};
-
-struct nand_oob_rw {
-	uint32_t	page;
-	off_t		len;
-	uint8_t		*data;
-};
-
-#define NAND_IOCTL_GROUP	'N'
-#define NAND_IO_ERASE		_IOWR(NAND_IOCTL_GROUP, 0x0, off_t[2])
-
-#define NAND_IO_OOB_READ	_IOWR(NAND_IOCTL_GROUP, 0x1, struct nand_oob_rw)
-
-#define NAND_IO_OOB_PROG	_IOWR(NAND_IOCTL_GROUP, 0x2, struct nand_oob_rw)
-
-#define NAND_IO_RAW_READ	_IOWR(NAND_IOCTL_GROUP, 0x3, struct nand_raw_rw)
-
-#define NAND_IO_RAW_PROG	_IOWR(NAND_IOCTL_GROUP, 0x4, struct nand_raw_rw)
-
-#define NAND_IO_GET_STATUS	_IOWR(NAND_IOCTL_GROUP, 0x5, uint8_t)
-
-struct page_stat_io {
-	uint32_t	page_num;
-	uint32_t	page_read;
-	uint32_t	page_written;
-	uint32_t	page_raw_read;
-	uint32_t	page_raw_written;
-	uint32_t	ecc_succeded;
-	uint32_t	ecc_corrected;
-	uint32_t	ecc_failed;
-};
-#define NAND_IO_PAGE_STAT	_IOWR(NAND_IOCTL_GROUP, 0x6, \
-    struct page_stat_io)
-
-struct block_stat_io {
-	uint32_t	block_num;
-	uint32_t	block_erased;
-};
-#define NAND_IO_BLOCK_STAT	_IOWR(NAND_IOCTL_GROUP, 0x7, \
-    struct block_stat_io)
-
-struct chip_param_io {
-	uint32_t	page_size;
-	uint32_t	oob_size;
-
-	uint32_t	blocks;
-	uint32_t	pages_per_block;
-};
-#define NAND_IO_GET_CHIP_PARAM	_IOWR(NAND_IOCTL_GROUP, 0x8, \
-    struct chip_param_io)
-
-#endif /* _DEV_NAND_CDEV_H_ */