Kim Phillips
18 years ago
commit
f147dd15e8
@ -0,0 +1,155 @@ |
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/*
|
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* U-Boot command for OneNAND support |
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* |
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* Copyright (C) 2005-2007 Samsung Electronics |
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* Kyungmin Park <kyungmin.park@samsung.com> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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*/ |
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|
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#include <common.h> |
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#include <command.h> |
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#ifdef CONFIG_CMD_ONENAND |
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#include <linux/mtd/compat.h> |
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#include <linux/mtd/mtd.h> |
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#include <linux/mtd/onenand.h> |
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#include <asm/io.h> |
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extern struct mtd_info onenand_mtd; |
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extern struct onenand_chip onenand_chip; |
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int do_onenand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) |
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{ |
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int ret = 0; |
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switch (argc) { |
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case 0: |
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case 1: |
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printf("Usage:\n%s\n", cmdtp->usage); |
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return 1; |
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case 2: |
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if (strncmp(argv[1], "open", 4) == 0) { |
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onenand_init(); |
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return 0; |
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} |
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onenand_print_device_info(onenand_chip.device_id, 1); |
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return 0; |
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default: |
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/* At least 4 args */ |
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if (strncmp(argv[1], "erase", 5) == 0) { |
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struct erase_info instr; |
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ulong start, end; |
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ulong block; |
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start = simple_strtoul(argv[2], NULL, 10); |
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end = simple_strtoul(argv[3], NULL, 10); |
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start -= (unsigned long)onenand_chip.base; |
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end -= (unsigned long)onenand_chip.base; |
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if (!end || end < 0) |
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end = start; |
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printf("Erase block from %d to %d\n", start, end); |
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for (block = start; block <= end; block++) { |
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instr.addr = block << onenand_chip.erase_shift; |
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instr.len = 1 << onenand_chip.erase_shift; |
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ret = onenand_erase(&onenand_mtd, &instr); |
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if (ret) { |
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printf("erase failed %d\n", block); |
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break; |
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} |
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} |
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return 0; |
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} |
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if (strncmp(argv[1], "read", 4) == 0) { |
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ulong addr = simple_strtoul(argv[2], NULL, 16); |
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ulong ofs = simple_strtoul(argv[3], NULL, 16); |
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size_t len = simple_strtoul(argv[4], NULL, 16); |
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size_t retlen = 0; |
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int oob = strncmp(argv[1], "read.oob", 8) ? 0 : 1; |
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ofs -= (unsigned long)onenand_chip.base; |
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if (oob) |
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onenand_read_oob(&onenand_mtd, ofs, len, |
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&retlen, (u_char *) addr); |
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else |
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onenand_read(&onenand_mtd, ofs, len, &retlen, |
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(u_char *) addr); |
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printf("Done\n"); |
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return 0; |
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} |
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if (strncmp(argv[1], "write", 5) == 0) { |
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ulong addr = simple_strtoul(argv[2], NULL, 16); |
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ulong ofs = simple_strtoul(argv[3], NULL, 16); |
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size_t len = simple_strtoul(argv[4], NULL, 16); |
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size_t retlen = 0; |
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ofs -= (unsigned long)onenand_chip.base; |
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onenand_write(&onenand_mtd, ofs, len, &retlen, |
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(u_char *) addr); |
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printf("Done\n"); |
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return 0; |
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} |
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if (strncmp(argv[1], "block", 5) == 0) { |
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ulong addr = simple_strtoul(argv[2], NULL, 16); |
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ulong block = simple_strtoul(argv[3], NULL, 10); |
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ulong page = simple_strtoul(argv[4], NULL, 10); |
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size_t len = simple_strtol(argv[5], NULL, 10); |
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size_t retlen = 0; |
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ulong ofs; |
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int oob = strncmp(argv[1], "block.oob", 9) ? 0 : 1; |
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ofs = block << onenand_chip.erase_shift; |
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if (page) |
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ofs += page << onenand_chip.page_shift; |
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if (!len) { |
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if (oob) |
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len = 64; |
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else |
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len = 512; |
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} |
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if (oob) |
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onenand_read_oob(&onenand_mtd, ofs, len, |
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&retlen, (u_char *) addr); |
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else |
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onenand_read(&onenand_mtd, ofs, len, &retlen, |
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(u_char *) addr); |
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return 0; |
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} |
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break; |
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} |
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return 0; |
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} |
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U_BOOT_CMD( |
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onenand, 6, 1, do_onenand, |
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"onenand - OneNAND sub-system\n", |
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"info - show available OneNAND devices\n" |
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"onenand read[.oob] addr ofs len - read data at ofs with len to addr\n" |
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"onenand write addr ofs len - write data at ofs with len from addr\n" |
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"onenand erase saddr eaddr - erase block start addr to end addr\n" |
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"onenand block[.oob] addr block [page] [len] - " |
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"read data with (block [, page]) to addr" |
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); |
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#endif /* CONFIG_CMD_ONENAND */ |
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@ -0,0 +1,134 @@ |
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/*
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* (C) Copyright 2005-2007 Samsung Electronics |
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* Kyungmin Park <kyungmin.park@samsung.com> |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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#if defined(CFG_ENV_IS_IN_ONENAND) /* Environment is in OneNAND */ |
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#include <command.h> |
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#include <environment.h> |
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#include <linux/stddef.h> |
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#include <malloc.h> |
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#include <linux/mtd/compat.h> |
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#include <linux/mtd/mtd.h> |
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#include <linux/mtd/onenand.h> |
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extern struct mtd_info onenand_mtd; |
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extern struct onenand_chip onenand_chip; |
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/* References to names in env_common.c */ |
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extern uchar default_environment[]; |
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#define ONENAND_ENV_SIZE(mtd) (mtd.oobblock - ENV_HEADER_SIZE) |
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char *env_name_spec = "OneNAND"; |
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#ifdef ENV_IS_EMBEDDED |
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extern uchar environment[]; |
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env_t *env_ptr = (env_t *) (&environment[0]); |
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#else /* ! ENV_IS_EMBEDDED */ |
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static unsigned char onenand_env[MAX_ONENAND_PAGESIZE]; |
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env_t *env_ptr = (env_t *) onenand_env; |
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#endif /* ENV_IS_EMBEDDED */ |
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uchar env_get_char_spec(int index) |
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{ |
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DECLARE_GLOBAL_DATA_PTR; |
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return (*((uchar *) (gd->env_addr + index))); |
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} |
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void env_relocate_spec(void) |
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{ |
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DECLARE_GLOBAL_DATA_PTR; |
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unsigned long env_addr; |
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int use_default = 0; |
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int retlen; |
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env_addr = CFG_ENV_ADDR; |
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env_addr -= (unsigned long)onenand_chip.base; |
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/* Check OneNAND exist */ |
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if (onenand_mtd.oobblock) |
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/* Ignore read fail */ |
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onenand_read(&onenand_mtd, env_addr, onenand_mtd.oobblock, |
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&retlen, (u_char *) env_ptr); |
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else |
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onenand_mtd.oobblock = MAX_ONENAND_PAGESIZE; |
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if (crc32(0, env_ptr->data, ONENAND_ENV_SIZE(onenand_mtd)) != |
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env_ptr->crc) |
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use_default = 1; |
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if (use_default) { |
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memcpy(env_ptr->data, default_environment, |
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ONENAND_ENV_SIZE(onenand_mtd)); |
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env_ptr->crc = |
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crc32(0, env_ptr->data, ONENAND_ENV_SIZE(onenand_mtd)); |
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} |
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gd->env_addr = (ulong) & env_ptr->data; |
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gd->env_valid = 1; |
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} |
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int saveenv(void) |
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{ |
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unsigned long env_addr = CFG_ENV_ADDR; |
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struct erase_info instr; |
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int retlen; |
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instr.len = CFG_ENV_SIZE; |
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instr.addr = env_addr; |
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instr.addr -= (unsigned long)onenand_chip.base; |
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if (onenand_erase(&onenand_mtd, &instr)) { |
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printf("OneNAND: erase failed at 0x%08x\n", env_addr); |
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return 1; |
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} |
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/* update crc */ |
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env_ptr->crc = |
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crc32(0, env_ptr->data, onenand_mtd.oobblock - ENV_HEADER_SIZE); |
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env_addr -= (unsigned long)onenand_chip.base; |
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if (onenand_write(&onenand_mtd, env_addr, onenand_mtd.oobblock, &retlen, |
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(u_char *) env_ptr)) { |
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printf("OneNAND: write failed at 0x%08x\n", instr.addr); |
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return 2; |
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} |
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return 0; |
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} |
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int env_init(void) |
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{ |
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DECLARE_GLOBAL_DATA_PTR; |
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/* use default */ |
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gd->env_addr = (ulong) & default_environment[0]; |
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gd->env_valid = 1; |
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return 0; |
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} |
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#endif /* CFG_ENV_IS_IN_ONENAND */ |
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@ -0,0 +1,44 @@ |
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#
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# Copyright (C) 2005-2007 Samsung Electronics.
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# Kyungmin Park <kyungmin.park@samsung.com>
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
|
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307 USA
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#
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include $(TOPDIR)/config.mk |
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LIB := $(obj)libonenand.a
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COBJS := onenand_base.o onenand_bbt.o
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SRCS := $(COBJS:.o=.c)
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OBJS := $(addprefix $(obj),$(COBJS))
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all: $(LIB) |
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$(LIB): $(obj).depend $(OBJS) |
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$(AR) $(ARFLAGS) $@ $(OBJS)
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#########################################################################
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include $(SRCTREE)/rules.mk |
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sinclude $(obj).depend |
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#########################################################################
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File diff suppressed because it is too large
Load Diff
@ -0,0 +1,265 @@ |
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/*
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* linux/drivers/mtd/onenand/onenand_bbt.c |
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* |
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* Bad Block Table support for the OneNAND driver |
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* |
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* Copyright(c) 2005-2007 Samsung Electronics |
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* Kyungmin Park <kyungmin.park@samsung.com> |
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* |
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* TODO: |
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* Split BBT core and chip specific BBT. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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*/ |
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#include <common.h> |
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#ifdef CONFIG_CMD_ONENAND |
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#include <linux/mtd/compat.h> |
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#include <linux/mtd/mtd.h> |
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#include <linux/mtd/onenand.h> |
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#include <malloc.h> |
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#include <asm/errno.h> |
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/**
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* check_short_pattern - [GENERIC] check if a pattern is in the buffer |
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* @param buf the buffer to search |
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* @param len the length of buffer to search |
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* @param paglen the pagelength |
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* @param td search pattern descriptor |
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* |
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* Check for a pattern at the given place. Used to search bad block |
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* tables and good / bad block identifiers. Same as check_pattern, but |
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* no optional empty check and the pattern is expected to start |
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* at offset 0. |
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*/ |
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static int check_short_pattern(uint8_t * buf, int len, int paglen, |
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struct nand_bbt_descr *td) |
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{ |
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int i; |
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uint8_t *p = buf; |
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/* Compare the pattern */ |
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for (i = 0; i < td->len; i++) { |
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if (p[i] != td->pattern[i]) |
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return -1; |
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} |
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return 0; |
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} |
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/**
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* create_bbt - [GENERIC] Create a bad block table by scanning the device |
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* @param mtd MTD device structure |
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* @param buf temporary buffer |
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* @param bd descriptor for the good/bad block search pattern |
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* @param chip create the table for a specific chip, -1 read all chips. |
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* Applies only if NAND_BBT_PERCHIP option is set |
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* |
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* Create a bad block table by scanning the device |
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* for the given good/bad block identify pattern |
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*/ |
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static int create_bbt(struct mtd_info *mtd, uint8_t * buf, |
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struct nand_bbt_descr *bd, int chip) |
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{ |
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struct onenand_chip *this = mtd->priv; |
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struct bbm_info *bbm = this->bbm; |
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int i, j, numblocks, len, scanlen; |
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int startblock; |
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loff_t from; |
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size_t readlen, ooblen; |
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printk(KERN_INFO "Scanning device for bad blocks\n"); |
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len = 1; |
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/* We need only read few bytes from the OOB area */ |
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scanlen = ooblen = 0; |
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readlen = bd->len; |
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|
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/* chip == -1 case only */ |
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/* Note that numblocks is 2 * (real numblocks) here;
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* see i += 2 below as it makses shifting and masking less painful |
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*/ |
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numblocks = mtd->size >> (bbm->bbt_erase_shift - 1); |
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startblock = 0; |
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from = 0; |
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for (i = startblock; i < numblocks;) { |
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int ret; |
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for (j = 0; j < len; j++) { |
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size_t retlen; |
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/* No need to read pages fully,
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* just read required OOB bytes */ |
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ret = onenand_read_oob(mtd, |
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from + j * mtd->oobblock + |
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bd->offs, readlen, &retlen, |
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&buf[0]); |
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if (ret && ret != -EAGAIN) { |
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printk("ret = %d\n", ret); |
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return ret; |
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} |
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if (check_short_pattern |
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(&buf[j * scanlen], scanlen, mtd->oobblock, bd)) { |
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bbm->bbt[i >> 3] |= 0x03 << (i & 0x6); |
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printk(KERN_WARNING |
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"Bad eraseblock %d at 0x%08x\n", i >> 1, |
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(unsigned int)from); |
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break; |
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} |
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} |
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i += 2; |
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from += (1 << bbm->bbt_erase_shift); |
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} |
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return 0; |
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} |
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/**
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* onenand_memory_bbt - [GENERIC] create a memory based bad block table |
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* @param mtd MTD device structure |
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* @param bd descriptor for the good/bad block search pattern |
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* |
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* The function creates a memory based bbt by scanning the device |
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* for manufacturer / software marked good / bad blocks |
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*/ |
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static inline int onenand_memory_bbt(struct mtd_info *mtd, |
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struct nand_bbt_descr *bd) |
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{ |
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unsigned char data_buf[MAX_ONENAND_PAGESIZE]; |
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|
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bd->options &= ~NAND_BBT_SCANEMPTY; |
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return create_bbt(mtd, data_buf, bd, -1); |
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} |
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|
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/**
|
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* onenand_isbad_bbt - [OneNAND Interface] Check if a block is bad |
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* @param mtd MTD device structure |
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* @param offs offset in the device |
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* @param allowbbt allow access to bad block table region |
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*/ |
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static int onenand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt) |
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{ |
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struct onenand_chip *this = mtd->priv; |
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struct bbm_info *bbm = this->bbm; |
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int block; |
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uint8_t res; |
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|
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/* Get block number * 2 */ |
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block = (int)(offs >> (bbm->bbt_erase_shift - 1)); |
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res = (bbm->bbt[block >> 3] >> (block & 0x06)) & 0x03; |
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|
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DEBUG(MTD_DEBUG_LEVEL2, |
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"onenand_isbad_bbt: bbt info for offs 0x%08x: (block %d) 0x%02x\n", |
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(unsigned int)offs, block >> 1, res); |
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|
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switch ((int)res) { |
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case 0x00: |
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return 0; |
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case 0x01: |
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return 1; |
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case 0x02: |
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return allowbbt ? 0 : 1; |
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} |
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|
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return 1; |
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} |
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|
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/**
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* onenand_scan_bbt - [OneNAND Interface] scan, find, read and maybe create bad block table(s) |
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* @param mtd MTD device structure |
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* @param bd descriptor for the good/bad block search pattern |
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* |
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* The function checks, if a bad block table(s) is/are already |
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* available. If not it scans the device for manufacturer |
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* marked good / bad blocks and writes the bad block table(s) to |
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* the selected place. |
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* |
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* The bad block table memory is allocated here. It must be freed |
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* by calling the onenand_free_bbt function. |
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* |
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*/ |
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int onenand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) |
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{ |
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struct onenand_chip *this = mtd->priv; |
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struct bbm_info *bbm = this->bbm; |
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int len, ret = 0; |
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|
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len = mtd->size >> (this->erase_shift + 2); |
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/* Allocate memory (2bit per block) */ |
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bbm->bbt = malloc(len); |
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if (!bbm->bbt) { |
||||
printk(KERN_ERR "onenand_scan_bbt: Out of memory\n"); |
||||
return -ENOMEM; |
||||
} |
||||
/* Clear the memory bad block table */ |
||||
memset(bbm->bbt, 0x00, len); |
||||
|
||||
/* Set the bad block position */ |
||||
bbm->badblockpos = ONENAND_BADBLOCK_POS; |
||||
|
||||
/* Set erase shift */ |
||||
bbm->bbt_erase_shift = this->erase_shift; |
||||
|
||||
if (!bbm->isbad_bbt) |
||||
bbm->isbad_bbt = onenand_isbad_bbt; |
||||
|
||||
/* Scan the device to build a memory based bad block table */ |
||||
if ((ret = onenand_memory_bbt(mtd, bd))) { |
||||
printk(KERN_ERR |
||||
"onenand_scan_bbt: Can't scan flash and build the RAM-based BBT\n"); |
||||
free(bbm->bbt); |
||||
bbm->bbt = NULL; |
||||
} |
||||
|
||||
return ret; |
||||
} |
||||
|
||||
/*
|
||||
* Define some generic bad / good block scan pattern which are used |
||||
* while scanning a device for factory marked good / bad blocks. |
||||
*/ |
||||
static uint8_t scan_ff_pattern[] = { 0xff, 0xff }; |
||||
|
||||
static struct nand_bbt_descr largepage_memorybased = { |
||||
.options = 0, |
||||
.offs = 0, |
||||
.len = 2, |
||||
.pattern = scan_ff_pattern, |
||||
}; |
||||
|
||||
/**
|
||||
* onenand_default_bbt - [OneNAND Interface] Select a default bad block table for the device |
||||
* @param mtd MTD device structure |
||||
* |
||||
* This function selects the default bad block table |
||||
* support for the device and calls the onenand_scan_bbt function |
||||
*/ |
||||
int onenand_default_bbt(struct mtd_info *mtd) |
||||
{ |
||||
struct onenand_chip *this = mtd->priv; |
||||
struct bbm_info *bbm; |
||||
|
||||
this->bbm = malloc(sizeof(struct bbm_info)); |
||||
if (!this->bbm) |
||||
return -ENOMEM; |
||||
|
||||
bbm = this->bbm; |
||||
|
||||
memset(bbm, 0, sizeof(struct bbm_info)); |
||||
|
||||
/* 1KB page has same configuration as 2KB page */ |
||||
if (!bbm->badblock_pattern) |
||||
bbm->badblock_pattern = &largepage_memorybased; |
||||
|
||||
return onenand_scan_bbt(mtd, bbm->badblock_pattern); |
||||
} |
||||
|
||||
#endif /* CFG_CMD_ONENAND */ |
||||
@ -1,45 +0,0 @@ |
||||
/*
|
||||
* (C) Copyright 2006 |
||||
* Atmel Nordic AB <www.atmel.com> |
||||
* Ulf Samuelsson <ulf@atmel.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef __LED_H |
||||
#define __LED_H |
||||
|
||||
#ifndef __ASSEMBLY__ |
||||
extern void LED_init (void); |
||||
extern void red_LED_on(void); |
||||
extern void red_LED_off(void); |
||||
extern void green_LED_on(void); |
||||
extern void green_LED_off(void); |
||||
extern void yellow_LED_on(void); |
||||
extern void yellow_LED_off(void); |
||||
#else |
||||
.extern LED_init |
||||
.extern red_LED_on |
||||
.extern red_LED_off |
||||
.extern yellow_LED_on |
||||
.extern yellow_LED_off |
||||
.extern green_LED_on |
||||
.extern green_LED_off |
||||
#endif |
||||
#endif |
||||
@ -0,0 +1,127 @@ |
||||
/*
|
||||
* linux/include/linux/mtd/bbm.h |
||||
* |
||||
* NAND family Bad Block Management (BBM) header file |
||||
* - Bad Block Table (BBT) implementation |
||||
* |
||||
* Copyright (c) 2005-2007 Samsung Electronics |
||||
* Kyungmin Park <kyungmin.park@samsung.com> |
||||
* |
||||
* Copyright (c) 2000-2005 |
||||
* Thomas Gleixner <tglx@linuxtronix.de> |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 as |
||||
* published by the Free Software Foundation. |
||||
*/ |
||||
#ifndef __LINUX_MTD_BBM_H |
||||
#define __LINUX_MTD_BBM_H |
||||
|
||||
/* The maximum number of NAND chips in an array */ |
||||
#ifndef NAND_MAX_CHIPS |
||||
#define NAND_MAX_CHIPS 8 |
||||
#endif |
||||
|
||||
/**
|
||||
* struct nand_bbt_descr - bad block table descriptor |
||||
* @param options options for this descriptor |
||||
* @param pages the page(s) where we find the bbt, used with |
||||
* option BBT_ABSPAGE when bbt is searched, |
||||
* then we store the found bbts pages here. |
||||
* Its an array and supports up to 8 chips now |
||||
* @param offs offset of the pattern in the oob area of the page |
||||
* @param veroffs offset of the bbt version counter in the oob are of the page |
||||
* @param version version read from the bbt page during scan |
||||
* @param len length of the pattern, if 0 no pattern check is performed |
||||
* @param maxblocks maximum number of blocks to search for a bbt. This number of |
||||
* blocks is reserved at the end of the device |
||||
* where the tables are written. |
||||
* @param reserved_block_code if non-0, this pattern denotes a reserved |
||||
* (rather than bad) block in the stored bbt |
||||
* @param pattern pattern to identify bad block table or factory marked |
||||
* good / bad blocks, can be NULL, if len = 0 |
||||
* |
||||
* Descriptor for the bad block table marker and the descriptor for the |
||||
* pattern which identifies good and bad blocks. The assumption is made |
||||
* that the pattern and the version count are always located in the oob area |
||||
* of the first block. |
||||
*/ |
||||
struct nand_bbt_descr { |
||||
int options; |
||||
int pages[NAND_MAX_CHIPS]; |
||||
int offs; |
||||
int veroffs; |
||||
uint8_t version[NAND_MAX_CHIPS]; |
||||
int len; |
||||
int maxblocks; |
||||
int reserved_block_code; |
||||
uint8_t *pattern; |
||||
}; |
||||
|
||||
/* Options for the bad block table descriptors */ |
||||
|
||||
/* The number of bits used per block in the bbt on the device */ |
||||
#define NAND_BBT_NRBITS_MSK 0x0000000F |
||||
#define NAND_BBT_1BIT 0x00000001 |
||||
#define NAND_BBT_2BIT 0x00000002 |
||||
#define NAND_BBT_4BIT 0x00000004 |
||||
#define NAND_BBT_8BIT 0x00000008 |
||||
/* The bad block table is in the last good block of the device */ |
||||
#define NAND_BBT_LASTBLOCK 0x00000010 |
||||
/* The bbt is at the given page, else we must scan for the bbt */ |
||||
#define NAND_BBT_ABSPAGE 0x00000020 |
||||
/* The bbt is at the given page, else we must scan for the bbt */ |
||||
#define NAND_BBT_SEARCH 0x00000040 |
||||
/* bbt is stored per chip on multichip devices */ |
||||
#define NAND_BBT_PERCHIP 0x00000080 |
||||
/* bbt has a version counter at offset veroffs */ |
||||
#define NAND_BBT_VERSION 0x00000100 |
||||
/* Create a bbt if none axists */ |
||||
#define NAND_BBT_CREATE 0x00000200 |
||||
/* Search good / bad pattern through all pages of a block */ |
||||
#define NAND_BBT_SCANALLPAGES 0x00000400 |
||||
/* Scan block empty during good / bad block scan */ |
||||
#define NAND_BBT_SCANEMPTY 0x00000800 |
||||
/* Write bbt if neccecary */ |
||||
#define NAND_BBT_WRITE 0x00001000 |
||||
/* Read and write back block contents when writing bbt */ |
||||
#define NAND_BBT_SAVECONTENT 0x00002000 |
||||
/* Search good / bad pattern on the first and the second page */ |
||||
#define NAND_BBT_SCAN2NDPAGE 0x00004000 |
||||
|
||||
/* The maximum number of blocks to scan for a bbt */ |
||||
#define NAND_BBT_SCAN_MAXBLOCKS 4 |
||||
|
||||
/*
|
||||
* Constants for oob configuration |
||||
*/ |
||||
#define ONENAND_BADBLOCK_POS 0 |
||||
|
||||
/**
|
||||
* struct bbt_info - [GENERIC] Bad Block Table data structure |
||||
* @param bbt_erase_shift [INTERN] number of address bits in a bbt entry |
||||
* @param badblockpos [INTERN] position of the bad block marker in the oob area |
||||
* @param bbt [INTERN] bad block table pointer |
||||
* @param badblock_pattern [REPLACEABLE] bad block scan pattern used for initial bad block scan |
||||
* @param priv [OPTIONAL] pointer to private bbm date |
||||
*/ |
||||
struct bbm_info { |
||||
int bbt_erase_shift; |
||||
int badblockpos; |
||||
int options; |
||||
|
||||
uint8_t *bbt; |
||||
|
||||
int (*isbad_bbt) (struct mtd_info * mtd, loff_t ofs, int allowbbt); |
||||
|
||||
/* TODO Add more NAND specific fileds */ |
||||
struct nand_bbt_descr *badblock_pattern; |
||||
|
||||
void *priv; |
||||
}; |
||||
|
||||
/* OneNAND BBT interface */ |
||||
extern int onenand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd); |
||||
extern int onenand_default_bbt (struct mtd_info *mtd); |
||||
|
||||
#endif /* __LINUX_MTD_BBM_H */ |
||||
@ -0,0 +1,143 @@ |
||||
/*
|
||||
* linux/include/linux/mtd/onenand.h |
||||
* |
||||
* Copyright (C) 2005-2007 Samsung Electronics |
||||
* Kyungmin Park <kyungmin.park@samsung.com> |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 as |
||||
* published by the Free Software Foundation. |
||||
*/ |
||||
|
||||
#ifndef __LINUX_MTD_ONENAND_H |
||||
#define __LINUX_MTD_ONENAND_H |
||||
|
||||
#include <linux/mtd/onenand_regs.h> |
||||
|
||||
/* Note: The header order is impoertant */ |
||||
#include <onenand_uboot.h> |
||||
|
||||
#include <linux/mtd/bbm.h> |
||||
|
||||
#define MAX_BUFFERRAM 2 |
||||
#define MAX_ONENAND_PAGESIZE (2048 + 64) |
||||
|
||||
/* Scan and identify a OneNAND device */ |
||||
extern int onenand_scan (struct mtd_info *mtd, int max_chips); |
||||
/* Free resources held by the OneNAND device */ |
||||
extern void onenand_release (struct mtd_info *mtd); |
||||
|
||||
/**
|
||||
* onenand_state_t - chip states |
||||
* Enumeration for OneNAND flash chip state |
||||
*/ |
||||
typedef enum { |
||||
FL_READY, |
||||
FL_READING, |
||||
FL_WRITING, |
||||
FL_ERASING, |
||||
FL_SYNCING, |
||||
FL_UNLOCKING, |
||||
FL_LOCKING, |
||||
} onenand_state_t; |
||||
|
||||
/**
|
||||
* struct onenand_bufferram - OneNAND BufferRAM Data |
||||
* @param block block address in BufferRAM |
||||
* @param page page address in BufferRAM |
||||
* @param valid valid flag |
||||
*/ |
||||
struct onenand_bufferram { |
||||
int block; |
||||
int page; |
||||
int valid; |
||||
}; |
||||
|
||||
/**
|
||||
* struct onenand_chip - OneNAND Private Flash Chip Data |
||||
* @param base [BOARDSPECIFIC] address to access OneNAND |
||||
* @param chipsize [INTERN] the size of one chip for multichip arrays |
||||
* @param device_id [INTERN] device ID |
||||
* @param verstion_id [INTERN] version ID |
||||
* @param options [BOARDSPECIFIC] various chip options. They can partly be set to inform onenand_scan about |
||||
* @param erase_shift [INTERN] number of address bits in a block |
||||
* @param page_shift [INTERN] number of address bits in a page |
||||
* @param ppb_shift [INTERN] number of address bits in a pages per block |
||||
* @param page_mask [INTERN] a page per block mask |
||||
* @param bufferam_index [INTERN] BufferRAM index |
||||
* @param bufferam [INTERN] BufferRAM info |
||||
* @param readw [REPLACEABLE] hardware specific function for read short |
||||
* @param writew [REPLACEABLE] hardware specific function for write short |
||||
* @param command [REPLACEABLE] hardware specific function for writing commands to the chip |
||||
* @param wait [REPLACEABLE] hardware specific function for wait on ready |
||||
* @param read_bufferram [REPLACEABLE] hardware specific function for BufferRAM Area |
||||
* @param write_bufferram [REPLACEABLE] hardware specific function for BufferRAM Area |
||||
* @param chip_lock [INTERN] spinlock used to protect access to this structure and the chip |
||||
* @param wq [INTERN] wait queue to sleep on if a OneNAND operation is in progress |
||||
* @param state [INTERN] the current state of the OneNAND device |
||||
* @param autooob [REPLACEABLE] the default (auto)placement scheme |
||||
* @param priv [OPTIONAL] pointer to private chip date |
||||
*/ |
||||
struct onenand_chip { |
||||
void __iomem *base; |
||||
unsigned int chipsize; |
||||
unsigned int device_id; |
||||
unsigned int options; |
||||
|
||||
unsigned int erase_shift; |
||||
unsigned int page_shift; |
||||
unsigned int ppb_shift; /* Pages per block shift */ |
||||
unsigned int page_mask; |
||||
|
||||
unsigned int bufferram_index; |
||||
struct onenand_bufferram bufferram[MAX_BUFFERRAM]; |
||||
|
||||
int (*command) (struct mtd_info * mtd, int cmd, loff_t address, |
||||
size_t len); |
||||
int (*wait) (struct mtd_info * mtd, int state); |
||||
int (*read_bufferram) (struct mtd_info * mtd, int area, |
||||
unsigned char *buffer, int offset, size_t count); |
||||
int (*write_bufferram) (struct mtd_info * mtd, int area, |
||||
const unsigned char *buffer, int offset, |
||||
size_t count); |
||||
unsigned short (*read_word) (void __iomem * addr); |
||||
void (*write_word) (unsigned short value, void __iomem * addr); |
||||
void (*mmcontrol) (struct mtd_info * mtd, int sync_read); |
||||
|
||||
spinlock_t chip_lock; |
||||
wait_queue_head_t wq; |
||||
onenand_state_t state; |
||||
|
||||
struct nand_oobinfo *autooob; |
||||
|
||||
void *bbm; |
||||
|
||||
void *priv; |
||||
}; |
||||
|
||||
#define ONENAND_CURRENT_BUFFERRAM(this) (this->bufferram_index) |
||||
#define ONENAND_NEXT_BUFFERRAM(this) (this->bufferram_index ^ 1) |
||||
#define ONENAND_SET_NEXT_BUFFERRAM(this) (this->bufferram_index ^= 1) |
||||
|
||||
/*
|
||||
* Options bits |
||||
*/ |
||||
#define ONENAND_CONT_LOCK (0x0001) |
||||
|
||||
/*
|
||||
* OneNAND Flash Manufacturer ID Codes |
||||
*/ |
||||
#define ONENAND_MFR_SAMSUNG 0xec |
||||
#define ONENAND_MFR_UNKNOWN 0x00 |
||||
|
||||
/**
|
||||
* struct nand_manufacturers - NAND Flash Manufacturer ID Structure |
||||
* @param name: Manufacturer name |
||||
* @param id: manufacturer ID code of device. |
||||
*/ |
||||
struct onenand_manufacturers { |
||||
int id; |
||||
char *name; |
||||
}; |
||||
|
||||
#endif /* __LINUX_MTD_ONENAND_H */ |
||||
@ -0,0 +1,181 @@ |
||||
/*
|
||||
* linux/include/linux/mtd/onenand_regs.h |
||||
* |
||||
* OneNAND Register header file |
||||
* |
||||
* Copyright (C) 2005-2007 Samsung Electronics |
||||
* Kyungmin Park <kyungmin.park@samsung.com> |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 as |
||||
* published by the Free Software Foundation. |
||||
*/ |
||||
|
||||
#ifndef __ONENAND_REG_H |
||||
#define __ONENAND_REG_H |
||||
|
||||
/* Memory Address Map Translation (Word order) */ |
||||
#define ONENAND_MEMORY_MAP(x) ((x) << 1) |
||||
|
||||
/*
|
||||
* External BufferRAM area |
||||
*/ |
||||
#define ONENAND_BOOTRAM ONENAND_MEMORY_MAP(0x0000) |
||||
#define ONENAND_DATARAM ONENAND_MEMORY_MAP(0x0200) |
||||
#define ONENAND_SPARERAM ONENAND_MEMORY_MAP(0x8010) |
||||
|
||||
/*
|
||||
* OneNAND Registers |
||||
*/ |
||||
#define ONENAND_REG_MANUFACTURER_ID ONENAND_MEMORY_MAP(0xF000) |
||||
#define ONENAND_REG_DEVICE_ID ONENAND_MEMORY_MAP(0xF001) |
||||
#define ONENAND_REG_VERSION_ID ONENAND_MEMORY_MAP(0xF002) |
||||
#define ONENAND_REG_DATA_BUFFER_SIZE ONENAND_MEMORY_MAP(0xF003) |
||||
#define ONENAND_REG_BOOT_BUFFER_SIZE ONENAND_MEMORY_MAP(0xF004) |
||||
#define ONENAND_REG_NUM_BUFFERS ONENAND_MEMORY_MAP(0xF005) |
||||
#define ONENAND_REG_TECHNOLOGY ONENAND_MEMORY_MAP(0xF006) |
||||
|
||||
#define ONENAND_REG_START_ADDRESS1 ONENAND_MEMORY_MAP(0xF100) |
||||
#define ONENAND_REG_START_ADDRESS2 ONENAND_MEMORY_MAP(0xF101) |
||||
#define ONENAND_REG_START_ADDRESS3 ONENAND_MEMORY_MAP(0xF102) |
||||
#define ONENAND_REG_START_ADDRESS4 ONENAND_MEMORY_MAP(0xF103) |
||||
#define ONENAND_REG_START_ADDRESS5 ONENAND_MEMORY_MAP(0xF104) |
||||
#define ONENAND_REG_START_ADDRESS6 ONENAND_MEMORY_MAP(0xF105) |
||||
#define ONENAND_REG_START_ADDRESS7 ONENAND_MEMORY_MAP(0xF106) |
||||
#define ONENAND_REG_START_ADDRESS8 ONENAND_MEMORY_MAP(0xF107) |
||||
|
||||
#define ONENAND_REG_START_BUFFER ONENAND_MEMORY_MAP(0xF200) |
||||
#define ONENAND_REG_COMMAND ONENAND_MEMORY_MAP(0xF220) |
||||
#define ONENAND_REG_SYS_CFG1 ONENAND_MEMORY_MAP(0xF221) |
||||
#define ONENAND_REG_SYS_CFG2 ONENAND_MEMORY_MAP(0xF222) |
||||
#define ONENAND_REG_CTRL_STATUS ONENAND_MEMORY_MAP(0xF240) |
||||
#define ONENAND_REG_INTERRUPT ONENAND_MEMORY_MAP(0xF241) |
||||
#define ONENAND_REG_START_BLOCK_ADDRESS ONENAND_MEMORY_MAP(0xF24C) |
||||
#define ONENAND_REG_END_BLOCK_ADDRESS ONENAND_MEMORY_MAP(0xF24D) |
||||
#define ONENAND_REG_WP_STATUS ONENAND_MEMORY_MAP(0xF24E) |
||||
|
||||
#define ONENAND_REG_ECC_STATUS ONENAND_MEMORY_MAP(0xFF00) |
||||
#define ONENAND_REG_ECC_M0 ONENAND_MEMORY_MAP(0xFF01) |
||||
#define ONENAND_REG_ECC_S0 ONENAND_MEMORY_MAP(0xFF02) |
||||
#define ONENAND_REG_ECC_M1 ONENAND_MEMORY_MAP(0xFF03) |
||||
#define ONENAND_REG_ECC_S1 ONENAND_MEMORY_MAP(0xFF04) |
||||
#define ONENAND_REG_ECC_M2 ONENAND_MEMORY_MAP(0xFF05) |
||||
#define ONENAND_REG_ECC_S2 ONENAND_MEMORY_MAP(0xFF06) |
||||
#define ONENAND_REG_ECC_M3 ONENAND_MEMORY_MAP(0xFF07) |
||||
#define ONENAND_REG_ECC_S3 ONENAND_MEMORY_MAP(0xFF08) |
||||
|
||||
/*
|
||||
* Device ID Register F001h (R) |
||||
*/ |
||||
#define ONENAND_DEVICE_DENSITY_SHIFT (4) |
||||
#define ONENAND_DEVICE_IS_DDP (1 << 3) |
||||
#define ONENAND_DEVICE_IS_DEMUX (1 << 2) |
||||
#define ONENAND_DEVICE_VCC_MASK (0x3) |
||||
|
||||
#define ONENAND_DEVICE_DENSITY_512Mb (0x002) |
||||
|
||||
/*
|
||||
* Version ID Register F002h (R) |
||||
*/ |
||||
#define ONENAND_VERSION_PROCESS_SHIFT (8) |
||||
|
||||
/*
|
||||
* Start Address 1 F100h (R/W) |
||||
*/ |
||||
#define ONENAND_DDP_SHIFT (15) |
||||
|
||||
/*
|
||||
* Start Address 8 F107h (R/W) |
||||
*/ |
||||
#define ONENAND_FPA_MASK (0x3f) |
||||
#define ONENAND_FPA_SHIFT (2) |
||||
#define ONENAND_FSA_MASK (0x03) |
||||
|
||||
/*
|
||||
* Start Buffer Register F200h (R/W) |
||||
*/ |
||||
#define ONENAND_BSA_MASK (0x03) |
||||
#define ONENAND_BSA_SHIFT (8) |
||||
#define ONENAND_BSA_BOOTRAM (0 << 2) |
||||
#define ONENAND_BSA_DATARAM0 (2 << 2) |
||||
#define ONENAND_BSA_DATARAM1 (3 << 2) |
||||
#define ONENAND_BSC_MASK (0x03) |
||||
|
||||
/*
|
||||
* Command Register F220h (R/W) |
||||
*/ |
||||
#define ONENAND_CMD_READ (0x00) |
||||
#define ONENAND_CMD_READOOB (0x13) |
||||
#define ONENAND_CMD_PROG (0x80) |
||||
#define ONENAND_CMD_PROGOOB (0x1A) |
||||
#define ONENAND_CMD_UNLOCK (0x23) |
||||
#define ONENAND_CMD_LOCK (0x2A) |
||||
#define ONENAND_CMD_LOCK_TIGHT (0x2C) |
||||
#define ONENAND_CMD_ERASE (0x94) |
||||
#define ONENAND_CMD_RESET (0xF0) |
||||
#define ONENAND_CMD_READID (0x90) |
||||
|
||||
/* NOTE: Those are not *REAL* commands */ |
||||
#define ONENAND_CMD_BUFFERRAM (0x1978) |
||||
|
||||
/*
|
||||
* System Configuration 1 Register F221h (R, R/W) |
||||
*/ |
||||
#define ONENAND_SYS_CFG1_SYNC_READ (1 << 15) |
||||
#define ONENAND_SYS_CFG1_BRL_7 (7 << 12) |
||||
#define ONENAND_SYS_CFG1_BRL_6 (6 << 12) |
||||
#define ONENAND_SYS_CFG1_BRL_5 (5 << 12) |
||||
#define ONENAND_SYS_CFG1_BRL_4 (4 << 12) |
||||
#define ONENAND_SYS_CFG1_BRL_3 (3 << 12) |
||||
#define ONENAND_SYS_CFG1_BRL_10 (2 << 12) |
||||
#define ONENAND_SYS_CFG1_BRL_9 (1 << 12) |
||||
#define ONENAND_SYS_CFG1_BRL_8 (0 << 12) |
||||
#define ONENAND_SYS_CFG1_BRL_SHIFT (12) |
||||
#define ONENAND_SYS_CFG1_BL_32 (4 << 9) |
||||
#define ONENAND_SYS_CFG1_BL_16 (3 << 9) |
||||
#define ONENAND_SYS_CFG1_BL_8 (2 << 9) |
||||
#define ONENAND_SYS_CFG1_BL_4 (1 << 9) |
||||
#define ONENAND_SYS_CFG1_BL_CONT (0 << 9) |
||||
#define ONENAND_SYS_CFG1_BL_SHIFT (9) |
||||
#define ONENAND_SYS_CFG1_NO_ECC (1 << 8) |
||||
#define ONENAND_SYS_CFG1_RDY (1 << 7) |
||||
#define ONENAND_SYS_CFG1_INT (1 << 6) |
||||
#define ONENAND_SYS_CFG1_IOBE (1 << 5) |
||||
#define ONENAND_SYS_CFG1_RDY_CONF (1 << 4) |
||||
|
||||
/*
|
||||
* Controller Status Register F240h (R) |
||||
*/ |
||||
#define ONENAND_CTRL_ONGO (1 << 15) |
||||
#define ONENAND_CTRL_LOCK (1 << 14) |
||||
#define ONENAND_CTRL_LOAD (1 << 13) |
||||
#define ONENAND_CTRL_PROGRAM (1 << 12) |
||||
#define ONENAND_CTRL_ERASE (1 << 11) |
||||
#define ONENAND_CTRL_ERROR (1 << 10) |
||||
#define ONENAND_CTRL_RSTB (1 << 7) |
||||
|
||||
/*
|
||||
* Interrupt Status Register F241h (R) |
||||
*/ |
||||
#define ONENAND_INT_MASTER (1 << 15) |
||||
#define ONENAND_INT_READ (1 << 7) |
||||
#define ONENAND_INT_WRITE (1 << 6) |
||||
#define ONENAND_INT_ERASE (1 << 5) |
||||
#define ONENAND_INT_RESET (1 << 4) |
||||
#define ONENAND_INT_CLEAR (0 << 0) |
||||
|
||||
/*
|
||||
* NAND Flash Write Protection Status Register F24Eh (R) |
||||
*/ |
||||
#define ONENAND_WP_US (1 << 2) |
||||
#define ONENAND_WP_LS (1 << 1) |
||||
#define ONENAND_WP_LTS (1 << 0) |
||||
|
||||
/*
|
||||
* ECC Status Reigser FF00h (R) |
||||
*/ |
||||
#define ONENAND_ECC_1BIT (1 << 0) |
||||
#define ONENAND_ECC_2BIT (1 << 1) |
||||
#define ONENAND_ECC_2BIT_ALL (0xAAAA) |
||||
|
||||
#endif /* __ONENAND_REG_H */ |
||||
@ -0,0 +1,39 @@ |
||||
/*
|
||||
* Header file for OneNAND support for U-Boot |
||||
* |
||||
* Adaptation from kernel to U-Boot |
||||
* |
||||
* Copyright (C) 2005-2007 Samsung Electronics |
||||
* Kyungmin Park <kyungmin.park@samsung.com> |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 as |
||||
* published by the Free Software Foundation. |
||||
*/ |
||||
|
||||
#ifndef __UBOOT_ONENAND_H |
||||
#define __UBOOT_ONENAND_H |
||||
|
||||
struct kvec { |
||||
void *iov_base; |
||||
size_t iov_len; |
||||
}; |
||||
|
||||
typedef int spinlock_t; |
||||
typedef int wait_queue_head_t; |
||||
|
||||
/* Functions */ |
||||
extern void onenand_init(void); |
||||
extern int onenand_read(struct mtd_info *mtd, loff_t from, size_t len, |
||||
size_t * retlen, u_char * buf); |
||||
extern int onenand_read_oob(struct mtd_info *mtd, loff_t from, size_t len, |
||||
size_t * retlen, u_char * buf); |
||||
extern int onenand_write(struct mtd_info *mtd, loff_t from, size_t len, |
||||
size_t * retlen, const u_char * buf); |
||||
extern int onenand_erase(struct mtd_info *mtd, struct erase_info *instr); |
||||
|
||||
extern int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len); |
||||
|
||||
extern void onenand_print_device_info(int device, int verbose); |
||||
|
||||
#endif /* __UBOOT_ONENAND_H */ |
||||
Loading…
Reference in new issue