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-rw-r--r--sys/dev/nand/nand_bbt.c275
1 files changed, 0 insertions, 275 deletions
diff --git a/sys/dev/nand/nand_bbt.c b/sys/dev/nand/nand_bbt.c
deleted file mode 100644
index d99ed67523a2..000000000000
--- a/sys/dev/nand/nand_bbt.c
+++ /dev/null
@@ -1,275 +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.
- *
- * $FreeBSD$
- */
-
-#include <sys/cdefs.h>
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/socket.h>
-#include <sys/malloc.h>
-#include <sys/bus.h>
-
-#include <dev/nand/nand.h>
-
-#include "nand_if.h"
-
-#define BBT_PRIMARY_PATTERN 0x01020304
-#define BBT_SECONDARY_PATTERN 0x05060708
-
-enum bbt_place {
- BBT_NONE,
- BBT_PRIMARY,
- BBT_SECONDARY
-};
-
-struct nand_bbt {
- struct nand_chip *chip;
- uint32_t primary_map;
- uint32_t secondary_map;
- enum bbt_place active;
- struct bbt_header *hdr;
- uint32_t tab_len;
- uint32_t *table;
-};
-
-struct bbt_header {
- uint32_t pattern;
- int32_t seq_nr;
-};
-
-static int nand_bbt_save(struct nand_bbt *);
-static int nand_bbt_load_hdr(struct nand_bbt *, struct bbt_header *, int8_t);
-static int nand_bbt_load_table(struct nand_bbt *);
-static int nand_bbt_prescan(struct nand_bbt *);
-
-int
-nand_init_bbt(struct nand_chip *chip)
-{
- struct chip_geom *cg;
- struct nand_bbt *bbt;
- int err;
-
- cg = &chip->chip_geom;
-
- bbt = malloc(sizeof(struct nand_bbt), M_NAND, M_ZERO | M_WAITOK);
- if (!bbt) {
- device_printf(chip->dev,
- "Cannot allocate memory for bad block struct");
- return (ENOMEM);
- }
-
- bbt->chip = chip;
- bbt->active = BBT_NONE;
- bbt->primary_map = cg->chip_size - cg->block_size;
- bbt->secondary_map = cg->chip_size - 2 * cg->block_size;
- bbt->tab_len = cg->blks_per_chip * sizeof(uint32_t);
- bbt->hdr = malloc(sizeof(struct bbt_header) + bbt->tab_len, M_NAND,
- M_WAITOK);
- if (!bbt->hdr) {
- device_printf(chip->dev, "Cannot allocate %d bytes for BB "
- "Table", bbt->tab_len);
- free(bbt, M_NAND);
- return (ENOMEM);
- }
- bbt->hdr->seq_nr = 0;
- bbt->table = (uint32_t *)((uint8_t *)bbt->hdr +
- sizeof(struct bbt_header));
-
- err = nand_bbt_load_table(bbt);
- if (err) {
- free(bbt->table, M_NAND);
- free(bbt, M_NAND);
- return (err);
- }
-
- chip->bbt = bbt;
- if (bbt->active == BBT_NONE) {
- bbt->active = BBT_PRIMARY;
- memset(bbt->table, 0xff, bbt->tab_len);
- nand_bbt_prescan(bbt);
- nand_bbt_save(bbt);
- } else
- device_printf(chip->dev, "Found BBT table for chip\n");
-
- return (0);
-}
-
-void
-nand_destroy_bbt(struct nand_chip *chip)
-{
-
- if (chip->bbt) {
- nand_bbt_save(chip->bbt);
-
- free(chip->bbt->hdr, M_NAND);
- free(chip->bbt, M_NAND);
- chip->bbt = NULL;
- }
-}
-
-int
-nand_update_bbt(struct nand_chip *chip)
-{
-
- nand_bbt_save(chip->bbt);
-
- return (0);
-}
-
-static int
-nand_bbt_save(struct nand_bbt *bbt)
-{
- enum bbt_place next;
- uint32_t addr;
- int32_t err;
-
- if (bbt->active == BBT_PRIMARY) {
- addr = bbt->secondary_map;
- bbt->hdr->pattern = BBT_SECONDARY_PATTERN;
- next = BBT_SECONDARY;
- } else {
- addr = bbt->primary_map;
- bbt->hdr->pattern = BBT_PRIMARY_PATTERN;
- next = BBT_PRIMARY;
- }
-
- err = nand_erase_blocks(bbt->chip, addr,
- bbt->chip->chip_geom.block_size);
- if (err)
- return (err);
-
- bbt->hdr->seq_nr++;
-
- err = nand_prog_pages_raw(bbt->chip, addr, bbt->hdr,
- bbt->tab_len + sizeof(struct bbt_header));
- if (err)
- return (err);
-
- bbt->active = next;
- return (0);
-}
-
-static int
-nand_bbt_load_hdr(struct nand_bbt *bbt, struct bbt_header *hdr, int8_t primary)
-{
- uint32_t addr;
-
- if (primary)
- addr = bbt->primary_map;
- else
- addr = bbt->secondary_map;
-
- return (nand_read_pages_raw(bbt->chip, addr, hdr,
- sizeof(struct bbt_header)));
-}
-
-static int
-nand_bbt_load_table(struct nand_bbt *bbt)
-{
- struct bbt_header hdr1, hdr2;
- uint32_t address = 0;
- int err = 0;
-
- bzero(&hdr1, sizeof(hdr1));
- bzero(&hdr2, sizeof(hdr2));
-
- nand_bbt_load_hdr(bbt, &hdr1, 1);
- if (hdr1.pattern == BBT_PRIMARY_PATTERN) {
- bbt->active = BBT_PRIMARY;
- address = bbt->primary_map;
- } else
- bzero(&hdr1, sizeof(hdr1));
-
-
- nand_bbt_load_hdr(bbt, &hdr2, 0);
- if ((hdr2.pattern == BBT_SECONDARY_PATTERN) &&
- (hdr2.seq_nr > hdr1.seq_nr)) {
- bbt->active = BBT_SECONDARY;
- address = bbt->secondary_map;
- } else
- bzero(&hdr2, sizeof(hdr2));
-
- if (bbt->active != BBT_NONE)
- err = nand_read_pages_raw(bbt->chip, address, bbt->hdr,
- bbt->tab_len + sizeof(struct bbt_header));
-
- return (err);
-}
-
-static int
-nand_bbt_prescan(struct nand_bbt *bbt)
-{
- int32_t i;
- uint8_t bad;
- bool printed_hash = 0;
-
- device_printf(bbt->chip->dev, "No BBT found. Prescan chip...\n");
- for (i = 0; i < bbt->chip->chip_geom.blks_per_chip; i++) {
- if (NAND_IS_BLK_BAD(bbt->chip->dev, i, &bad))
- return (ENXIO);
-
- if (bad) {
- device_printf(bbt->chip->dev, "Bad block(%d)\n", i);
- bbt->table[i] = 0x0FFFFFFF;
- }
- if (!(i % 100)) {
- printf("#");
- printed_hash = 1;
- }
- }
-
- if (printed_hash)
- printf("\n");
-
- return (0);
-}
-
-int
-nand_check_bad_block(struct nand_chip *chip, uint32_t block_number)
-{
-
- if (!chip || !chip->bbt)
- return (0);
-
- if ((chip->bbt->table[block_number] & 0xF0000000) == 0)
- return (1);
-
- return (0);
-}
-
-int
-nand_mark_bad_block(struct nand_chip *chip, uint32_t block_number)
-{
-
- chip->bbt->table[block_number] = 0x0FFFFFFF;
-
- return (0);
-}