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authorWarner Losh <imp@FreeBSD.org>2019-06-25 04:50:09 +0000
committerWarner Losh <imp@FreeBSD.org>2019-06-25 04:50:09 +0000
commitf5a95d9a07941650493461c255408f5727d0638b (patch)
treeec681c8739341d8c1e8ff3b891e07a31c0fb3ace /sys/dev/nand/nfc_mv.c
parente861dab451869582008237a8c11e97348d2440ce (diff)
downloadsrc-f5a95d9a0794.tar.gz
src-f5a95d9a0794.zip
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
Notes
Notes: svn path=/head/; revision=349352
Diffstat (limited to 'sys/dev/nand/nfc_mv.c')
-rw-r--r--sys/dev/nand/nfc_mv.c238
1 files changed, 0 insertions, 238 deletions
diff --git a/sys/dev/nand/nfc_mv.c b/sys/dev/nand/nfc_mv.c
deleted file mode 100644
index 0d78d34d9912..000000000000
--- a/sys/dev/nand/nfc_mv.c
+++ /dev/null
@@ -1,238 +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.
- */
-
-/* Integrated NAND controller driver */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/proc.h>
-#include <sys/bus.h>
-#include <sys/conf.h>
-#include <sys/kernel.h>
-#include <sys/module.h>
-#include <sys/malloc.h>
-#include <sys/rman.h>
-#include <sys/lock.h>
-#include <sys/mutex.h>
-#include <sys/time.h>
-
-#include <machine/bus.h>
-#include <machine/fdt.h>
-#include <arm/mv/mvvar.h>
-#include <arm/mv/mvwin.h>
-
-#include <dev/ofw/ofw_bus.h>
-#include <dev/ofw/ofw_bus_subr.h>
-
-#include <dev/nand/nand.h>
-#include <dev/nand/nandbus.h>
-#include "nfc_if.h"
-
-#define MV_NAND_DATA (0x00)
-#define MV_NAND_COMMAND (0x01)
-#define MV_NAND_ADDRESS (0x02)
-
-struct mv_nand_softc {
- struct nand_softc nand_dev;
- bus_space_handle_t sc_handle;
- bus_space_tag_t sc_tag;
- struct resource *res;
- int rid;
-};
-
-static int mv_nand_attach(device_t);
-static int mv_nand_probe(device_t);
-static int mv_nand_send_command(device_t, uint8_t);
-static int mv_nand_send_address(device_t, uint8_t);
-static uint8_t mv_nand_read_byte(device_t);
-static void mv_nand_read_buf(device_t, void *, uint32_t);
-static void mv_nand_write_buf(device_t, void *, uint32_t);
-static int mv_nand_select_cs(device_t, uint8_t);
-static int mv_nand_read_rnb(device_t);
-
-static device_method_t mv_nand_methods[] = {
- DEVMETHOD(device_probe, mv_nand_probe),
- DEVMETHOD(device_attach, mv_nand_attach),
-
- DEVMETHOD(nfc_send_command, mv_nand_send_command),
- DEVMETHOD(nfc_send_address, mv_nand_send_address),
- DEVMETHOD(nfc_read_byte, mv_nand_read_byte),
- DEVMETHOD(nfc_read_buf, mv_nand_read_buf),
- DEVMETHOD(nfc_write_buf, mv_nand_write_buf),
- DEVMETHOD(nfc_select_cs, mv_nand_select_cs),
- DEVMETHOD(nfc_read_rnb, mv_nand_read_rnb),
-
- { 0, 0 },
-};
-
-static driver_t mv_nand_driver = {
- "nand",
- mv_nand_methods,
- sizeof(struct mv_nand_softc),
-};
-
-static devclass_t mv_nand_devclass;
-DRIVER_MODULE(mv_nand, localbus, mv_nand_driver, mv_nand_devclass, 0, 0);
-
-static int
-mv_nand_probe(device_t dev)
-{
-
- if (!ofw_bus_is_compatible(dev, "mrvl,nfc"))
- return (ENXIO);
-
- device_set_desc(dev, "Marvell NAND controller");
- return (BUS_PROBE_DEFAULT);
-}
-
-static int
-mv_nand_attach(device_t dev)
-{
- struct mv_nand_softc *sc;
- int err;
-
- sc = device_get_softc(dev);
- sc->res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->rid,
- RF_ACTIVE);
- if (sc->res == NULL) {
- device_printf(dev, "could not allocate resources!\n");
- return (ENXIO);
- }
-
- sc->sc_tag = rman_get_bustag(sc->res);
- sc->sc_handle = rman_get_bushandle(sc->res);
-
- nand_init(&sc->nand_dev, dev, NAND_ECC_SOFT, 0, 0, NULL, NULL);
-
- err = nandbus_create(dev);
-
- return (err);
-}
-
-static int
-mv_nand_send_command(device_t dev, uint8_t command)
-{
- struct mv_nand_softc *sc;
-
- nand_debug(NDBG_DRV,"mv_nand: send command %x", command);
-
- sc = device_get_softc(dev);
- bus_space_write_1(sc->sc_tag, sc->sc_handle, MV_NAND_COMMAND, command);
- return (0);
-}
-
-static int
-mv_nand_send_address(device_t dev, uint8_t addr)
-{
- struct mv_nand_softc *sc;
-
- nand_debug(NDBG_DRV,"mv_nand: send address %x", addr);
-
- sc = device_get_softc(dev);
- bus_space_write_1(sc->sc_tag, sc->sc_handle, MV_NAND_ADDRESS, addr);
- return (0);
-}
-
-static uint8_t
-mv_nand_read_byte(device_t dev)
-{
- struct mv_nand_softc *sc;
- uint8_t data;
-
- sc = device_get_softc(dev);
- data = bus_space_read_1(sc->sc_tag, sc->sc_handle, MV_NAND_DATA);
-
- nand_debug(NDBG_DRV,"mv_nand: read %x", data);
-
- return (data);
-}
-
-static void
-mv_nand_read_buf(device_t dev, void* buf, uint32_t len)
-{
- struct mv_nand_softc *sc;
- int i;
- uint8_t *b = (uint8_t*)buf;
-
- sc = device_get_softc(dev);
-
- for (i = 0; i < len; i++) {
- b[i] = bus_space_read_1(sc->sc_tag, sc->sc_handle,
- MV_NAND_DATA);
-#ifdef NAND_DEBUG
- if (!(i % 16))
- printf("%s", i == 0 ? "mv_nand:\n" : "\n");
- printf(" %x", b[i]);
- if (i == len - 1)
- printf("\n");
-#endif
- }
-}
-
-static void
-mv_nand_write_buf(device_t dev, void* buf, uint32_t len)
-{
- struct mv_nand_softc *sc;
- int i;
- uint8_t *b = (uint8_t*)buf;
-
- sc = device_get_softc(dev);
-
- for (i = 0; i < len; i++) {
-#ifdef NAND_DEBUG
- if (!(i % 16))
- printf("%s", i == 0 ? "mv_nand:\n" : "\n");
- printf(" %x", b[i]);
- if (i == len - 1)
- printf("\n");
-#endif
- bus_space_write_1(sc->sc_tag, sc->sc_handle, MV_NAND_DATA,
- b[i]);
- }
-}
-
-static int
-mv_nand_select_cs(device_t dev, uint8_t cs)
-{
-
- if (cs > 0)
- return (ENODEV);
-
- return (0);
-}
-
-static int
-mv_nand_read_rnb(device_t dev)
-{
-
- /* no-op */
- return (0); /* ready */
-}