aboutsummaryrefslogtreecommitdiff
path: root/sys/dev/nand/nandbus.c
diff options
context:
space:
mode:
Diffstat (limited to 'sys/dev/nand/nandbus.c')
-rw-r--r--sys/dev/nand/nandbus.c542
1 files changed, 0 insertions, 542 deletions
diff --git a/sys/dev/nand/nandbus.c b/sys/dev/nand/nandbus.c
deleted file mode 100644
index 003c1797af64..000000000000
--- a/sys/dev/nand/nandbus.c
+++ /dev/null
@@ -1,542 +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.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/socket.h>
-#include <sys/malloc.h>
-#include <sys/module.h>
-#include <sys/bus.h>
-#include <sys/proc.h>
-#include <sys/lock.h>
-#include <sys/mutex.h>
-#include <sys/condvar.h>
-
-#include <dev/nand/nand.h>
-#include <dev/nand/nandbus.h>
-#include "nand_if.h"
-#include "nandbus_if.h"
-#include "nfc_if.h"
-
-#define NAND_NCS 4
-
-static int nandbus_probe(device_t dev);
-static int nandbus_attach(device_t dev);
-static int nandbus_detach(device_t dev);
-
-static int nandbus_child_location_str(device_t, device_t, char *, size_t);
-static int nandbus_child_pnpinfo_str(device_t, device_t, char *, size_t);
-
-static int nandbus_get_status(device_t, uint8_t *);
-static void nandbus_read_buffer(device_t, void *, uint32_t);
-static int nandbus_select_cs(device_t, uint8_t);
-static int nandbus_send_command(device_t, uint8_t);
-static int nandbus_send_address(device_t, uint8_t);
-static int nandbus_start_command(device_t);
-static int nandbus_wait_ready(device_t, uint8_t *);
-static void nandbus_write_buffer(device_t, void *, uint32_t);
-static int nandbus_get_ecc(device_t, void *, uint32_t, void *, int *);
-static int nandbus_correct_ecc(device_t, void *, int, void *, void *);
-static void nandbus_lock(device_t);
-static void nandbus_unlock(device_t);
-
-static int nand_readid(device_t, uint8_t *, uint8_t *);
-static int nand_probe_onfi(device_t, uint8_t *);
-static int nand_reset(device_t);
-
-struct nandbus_softc {
- device_t dev;
- struct cv nandbus_cv;
- struct mtx nandbus_mtx;
- uint8_t busy;
-};
-
-static device_method_t nandbus_methods[] = {
- /* device interface */
- DEVMETHOD(device_probe, nandbus_probe),
- DEVMETHOD(device_attach, nandbus_attach),
- DEVMETHOD(device_detach, nandbus_detach),
- DEVMETHOD(device_shutdown, bus_generic_shutdown),
-
- /* bus interface */
- DEVMETHOD(bus_print_child, bus_generic_print_child),
- DEVMETHOD(bus_driver_added, bus_generic_driver_added),
- DEVMETHOD(bus_child_pnpinfo_str, nandbus_child_pnpinfo_str),
- DEVMETHOD(bus_child_location_str, nandbus_child_location_str),
-
- /* nandbus interface */
- DEVMETHOD(nandbus_get_status, nandbus_get_status),
- DEVMETHOD(nandbus_read_buffer, nandbus_read_buffer),
- DEVMETHOD(nandbus_select_cs, nandbus_select_cs),
- DEVMETHOD(nandbus_send_command, nandbus_send_command),
- DEVMETHOD(nandbus_send_address, nandbus_send_address),
- DEVMETHOD(nandbus_start_command,nandbus_start_command),
- DEVMETHOD(nandbus_wait_ready, nandbus_wait_ready),
- DEVMETHOD(nandbus_write_buffer, nandbus_write_buffer),
- DEVMETHOD(nandbus_get_ecc, nandbus_get_ecc),
- DEVMETHOD(nandbus_correct_ecc, nandbus_correct_ecc),
- DEVMETHOD(nandbus_lock, nandbus_lock),
- DEVMETHOD(nandbus_unlock, nandbus_unlock),
- { 0, 0 }
-};
-
-devclass_t nandbus_devclass;
-
-driver_t nandbus_driver = {
- "nandbus",
- nandbus_methods,
- sizeof(struct nandbus_softc)
-};
-
-DRIVER_MODULE(nandbus, nand, nandbus_driver, nandbus_devclass, 0, 0);
-
-int
-nandbus_create(device_t nfc)
-{
- device_t child;
-
- child = device_add_child(nfc, "nandbus", -1);
- if (!child)
- return (ENODEV);
-
- bus_generic_attach(nfc);
-
- return(0);
-}
-
-void
-nandbus_destroy(device_t nfc)
-{
- device_t *children;
- int nchildren, i;
-
- mtx_lock(&Giant);
- /* Detach & delete all children */
- if (!device_get_children(nfc, &children, &nchildren)) {
- for (i = 0; i < nchildren; i++)
- device_delete_child(nfc, children[i]);
-
- free(children, M_TEMP);
- }
- mtx_unlock(&Giant);
-}
-
-static int
-nandbus_probe(device_t dev)
-{
-
- device_set_desc(dev, "NAND bus");
-
- return (0);
-}
-
-static int
-nandbus_attach(device_t dev)
-{
- device_t child, nfc;
- struct nand_id chip_id;
- struct nandbus_softc *sc;
- struct nandbus_ivar *ivar;
- struct nand_softc *nfc_sc;
- struct nand_params *chip_params;
- uint8_t cs, onfi;
-
- sc = device_get_softc(dev);
- sc->dev = dev;
-
- nfc = device_get_parent(dev);
- nfc_sc = device_get_softc(nfc);
-
- mtx_init(&sc->nandbus_mtx, "nandbus lock", NULL, MTX_DEF);
- cv_init(&sc->nandbus_cv, "nandbus cv");
-
- /* Check each possible CS for existing nand devices */
- for (cs = 0; cs < NAND_NCS; cs++) {
- nand_debug(NDBG_BUS,"probe chip select %x", cs);
-
- /* Select & reset chip */
- if (nandbus_select_cs(dev, cs))
- break;
-
- if (nand_reset(dev))
- continue;
-
- /* Read manufacturer and device id */
- if (nand_readid(dev, &chip_id.man_id, &chip_id.dev_id))
- continue;
-
- if (chip_id.man_id == 0xff)
- continue;
-
- /*
- * First try to get info from the table. If that fails, see if
- * the chip can provide ONFI info. We check the table first to
- * allow table entries to override info from chips that are
- * known to provide bad ONFI data.
- */
- onfi = 0;
- chip_params = nand_get_params(&chip_id);
- if (chip_params == NULL) {
- nand_probe_onfi(dev, &onfi);
- }
-
- /*
- * At this point it appears there is a chip at this chipselect,
- * so if we can't work with it, whine about it.
- */
- if (chip_params == NULL && onfi == 0) {
- if (bootverbose || (nand_debug_flag & NDBG_BUS))
- printf("Chip params not found, chipsel: %d "
- "(manuf: 0x%0x, chipid: 0x%0x, onfi: %d)\n",
- cs, chip_id.man_id, chip_id.dev_id, onfi);
- continue;
- }
-
- ivar = malloc(sizeof(struct nandbus_ivar),
- M_NAND, M_WAITOK);
-
- if (onfi == 1) {
- ivar->cs = cs;
- ivar->cols = 0;
- ivar->rows = 0;
- ivar->params = NULL;
- ivar->man_id = chip_id.man_id;
- ivar->dev_id = chip_id.dev_id;
- ivar->is_onfi = onfi;
- ivar->chip_cdev_name = nfc_sc->chip_cdev_name;
-
- child = device_add_child(dev, NULL, -1);
- device_set_ivars(child, ivar);
- continue;
- }
-
- ivar->cs = cs;
- ivar->cols = 1;
- ivar->rows = 2;
- ivar->params = chip_params;
- ivar->man_id = chip_id.man_id;
- ivar->dev_id = chip_id.dev_id;
- ivar->is_onfi = onfi;
- ivar->chip_cdev_name = nfc_sc->chip_cdev_name;
-
- /*
- * Check what type of device we have.
- * devices bigger than 32MiB have on more row (3)
- */
- if (chip_params->chip_size > 32)
- ivar->rows++;
- /* Large page devices have one more col (2) */
- if (chip_params->chip_size >= 128 &&
- chip_params->page_size > 512)
- ivar->cols++;
-
- child = device_add_child(dev, NULL, -1);
- device_set_ivars(child, ivar);
- }
-
- bus_generic_attach(dev);
- return (0);
-}
-
-static int
-nandbus_detach(device_t dev)
-{
- struct nandbus_softc *sc;
-
- sc = device_get_softc(dev);
-
- bus_generic_detach(dev);
-
- mtx_destroy(&sc->nandbus_mtx);
- cv_destroy(&sc->nandbus_cv);
-
- return (0);
-}
-
-static int
-nandbus_child_location_str(device_t bus, device_t child, char *buf,
- size_t buflen)
-{
- struct nandbus_ivar *ivar = device_get_ivars(child);
-
- snprintf(buf, buflen, "at cs#%d", ivar->cs);
- return (0);
-}
-
-static int
-nandbus_child_pnpinfo_str(device_t bus, device_t child, char *buf,
- size_t buflen)
-{
- // XXX man id, model id ????
- *buf = '\0';
- return (0);
-}
-
-static int
-nand_readid(device_t bus, uint8_t *man_id, uint8_t *dev_id)
-{
- device_t nfc;
-
- if (!bus || !man_id || !dev_id)
- return (EINVAL);
-
- nand_debug(NDBG_BUS,"read id");
-
- nfc = device_get_parent(bus);
-
- if (NFC_SEND_COMMAND(nfc, NAND_CMD_READ_ID)) {
- nand_debug(NDBG_BUS,"Error : could not send READ ID command");
- return (ENXIO);
- }
-
- if (NFC_SEND_ADDRESS(nfc, 0)) {
- nand_debug(NDBG_BUS,"Error : could not sent address to chip");
- return (ENXIO);
- }
-
- if (NFC_START_COMMAND(nfc) != 0) {
- nand_debug(NDBG_BUS,"Error : could not start command");
- return (ENXIO);
- }
-
- DELAY(25);
-
- *man_id = NFC_READ_BYTE(nfc);
- *dev_id = NFC_READ_BYTE(nfc);
-
- nand_debug(NDBG_BUS,"manufacturer id: %x chip id: %x", *man_id,
- *dev_id);
-
- return (0);
-}
-
-static int
-nand_probe_onfi(device_t bus, uint8_t *onfi_compliant)
-{
- device_t nfc;
- char onfi_id[] = {'O', 'N', 'F', 'I', '\0'};
- int i;
-
- nand_debug(NDBG_BUS,"probing ONFI");
-
- nfc = device_get_parent(bus);
-
- if (NFC_SEND_COMMAND(nfc, NAND_CMD_READ_ID)) {
- nand_debug(NDBG_BUS,"Error : could not sent READ ID command");
- return (ENXIO);
- }
-
- if (NFC_SEND_ADDRESS(nfc, ONFI_SIG_ADDR)) {
- nand_debug(NDBG_BUS,"Error : could not sent address to chip");
- return (ENXIO);
- }
-
- if (NFC_START_COMMAND(nfc) != 0) {
- nand_debug(NDBG_BUS,"Error : could not start command");
- return (ENXIO);
- }
- for (i = 0; onfi_id[i] != '\0'; i++)
- if (NFC_READ_BYTE(nfc) != onfi_id[i]) {
- nand_debug(NDBG_BUS,"ONFI non-compliant");
- *onfi_compliant = 0;
- return (0);
- }
-
- nand_debug(NDBG_BUS,"ONFI compliant");
- *onfi_compliant = 1;
-
- return (0);
-}
-
-static int
-nand_reset(device_t bus)
-{
- device_t nfc;
- nand_debug(NDBG_BUS,"resetting...");
-
- nfc = device_get_parent(bus);
-
- if (NFC_SEND_COMMAND(nfc, NAND_CMD_RESET) != 0) {
- nand_debug(NDBG_BUS,"Error : could not sent RESET command");
- return (ENXIO);
- }
-
- if (NFC_START_COMMAND(nfc) != 0) {
- nand_debug(NDBG_BUS,"Error : could not start RESET command");
- return (ENXIO);
- }
-
- DELAY(1000);
-
- return (0);
-}
-
-void
-nandbus_lock(device_t dev)
-{
- struct nandbus_softc *sc;
-
- sc = device_get_softc(dev);
-
- mtx_lock(&sc->nandbus_mtx);
- if (sc->busy)
- cv_wait(&sc->nandbus_cv, &sc->nandbus_mtx);
- sc->busy = 1;
- mtx_unlock(&sc->nandbus_mtx);
-}
-
-void
-nandbus_unlock(device_t dev)
-{
- struct nandbus_softc *sc;
-
- sc = device_get_softc(dev);
-
- mtx_lock(&sc->nandbus_mtx);
- sc->busy = 0;
- cv_signal(&sc->nandbus_cv);
- mtx_unlock(&sc->nandbus_mtx);
-}
-
-int
-nandbus_select_cs(device_t dev, uint8_t cs)
-{
-
- return (NFC_SELECT_CS(device_get_parent(dev), cs));
-}
-
-int
-nandbus_send_command(device_t dev, uint8_t command)
-{
- int err;
-
- if ((err = NFC_SEND_COMMAND(device_get_parent(dev), command)))
- nand_debug(NDBG_BUS,"Err: Could not send command %x, err %x",
- command, err);
-
- return (err);
-}
-
-int
-nandbus_send_address(device_t dev, uint8_t address)
-{
- int err;
-
- if ((err = NFC_SEND_ADDRESS(device_get_parent(dev), address)))
- nand_debug(NDBG_BUS,"Err: Could not send address %x, err %x",
- address, err);
-
- return (err);
-}
-
-int
-nandbus_start_command(device_t dev)
-{
- int err;
-
- if ((err = NFC_START_COMMAND(device_get_parent(dev))))
- nand_debug(NDBG_BUS,"Err: Could not start command, err %x",
- err);
-
- return (err);
-}
-
-void
-nandbus_read_buffer(device_t dev, void *buf, uint32_t len)
-{
-
- NFC_READ_BUF(device_get_parent(dev), buf, len);
-}
-
-void
-nandbus_write_buffer(device_t dev, void *buf, uint32_t len)
-{
-
- NFC_WRITE_BUF(device_get_parent(dev), buf, len);
-}
-
-int
-nandbus_get_status(device_t dev, uint8_t *status)
-{
- int err;
-
- if ((err = NANDBUS_SEND_COMMAND(dev, NAND_CMD_STATUS)))
- return (err);
- if ((err = NANDBUS_START_COMMAND(dev)))
- return (err);
-
- *status = NFC_READ_BYTE(device_get_parent(dev));
-
- return (0);
-}
-
-int
-nandbus_wait_ready(device_t dev, uint8_t *status)
-{
- struct timeval tv, tv2;
-
- tv2.tv_sec = 0;
- tv2.tv_usec = 50 * 5000; /* 250ms */
-
- getmicrotime(&tv);
- timevaladd(&tv, &tv2);
-
- do {
- if (NANDBUS_GET_STATUS(dev, status))
- return (ENXIO);
-
- if (*status & NAND_STATUS_RDY)
- return (0);
-
- getmicrotime(&tv2);
- } while (timevalcmp(&tv2, &tv, <=));
-
- return (EBUSY);
-}
-
-int
-nandbus_get_ecc(device_t dev, void *buf, uint32_t pagesize, void *ecc,
- int *needwrite)
-{
-
- return (NFC_GET_ECC(device_get_parent(dev), buf, pagesize, ecc, needwrite));
-}
-
-int
-nandbus_correct_ecc(device_t dev, void *buf, int pagesize, void *readecc,
- void *calcecc)
-{
-
- return (NFC_CORRECT_ECC(device_get_parent(dev), buf, pagesize,
- readecc, calcecc));
-}
-