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, 100 deletions

diff --git a/sys/dev/nand/nandbus_if.m b/sys/dev/nand/nandbus_if.m
deleted file mode 100644
index e914e18de661..000000000000
--- a/sys/dev/nand/nandbus_if.m
+++ /dev/null
@@ -1,100 +0,0 @@
-#-
-# 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.
-#
-# $FreeBSD$
-
-# NAND bus interface description
-#
-
-#include <sys/bus.h>
-#include <dev/nand/nand.h>
-
-INTERFACE nandbus;
-
-METHOD int get_status {
-	device_t	dev;
-	uint8_t	*	status;
-};
-
-METHOD void read_buffer {
-	device_t	dev;
-	void *		buf;
-	uint32_t	len;
-};
-
-METHOD int select_cs {
-	device_t	dev;
-	uint8_t		cs;
-};
-
-METHOD int send_command {
-	device_t	dev;
-	uint8_t		command;
-};
-
-METHOD int send_address {
-	device_t	dev;
-	uint8_t		address;
-};
-
-METHOD int start_command {
-	device_t	dev;
-};
-
-METHOD int wait_ready {
-	device_t 	dev;
-	uint8_t *	status;	
-}
-
-METHOD void write_buffer {
-	device_t	dev;
-	void *		buf;
-	uint32_t	len;
-};
-
-METHOD int get_ecc {
-	device_t	dev;
-	void *		buf;
-	uint32_t	pagesize;
-	void *		ecc;
-	int *		needwrite;
-};
-
-METHOD int correct_ecc {
-	device_t	dev;
-	void *		buf;
-	int		pagesize;
-	void *		readecc;
-	void *		calcecc;
-};
-
-METHOD void lock {
-	device_t	dev;
-};
-
-METHOD void unlock {
-	device_t	dev;
-};
-