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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 | /* * U-Boot command for OneNAND support * * 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. */ #include <common.h> #include <command.h> #ifdef CONFIG_CMD_ONENAND #include <linux/mtd/compat.h> #include <linux/mtd/mtd.h> #include <linux/mtd/onenand.h> #include <asm/io.h> extern struct mtd_info onenand_mtd; extern struct onenand_chip onenand_chip; int do_onenand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) { int ret = 0; switch (argc) { case 0: case 1: printf("Usage:\n%s\n", cmdtp->usage); return 1; case 2: if (strncmp(argv[1], "open", 4) == 0) { onenand_init(); return 0; } onenand_print_device_info(onenand_chip.device_id, 1); return 0; default: /* At least 4 args */ if (strncmp(argv[1], "erase", 5) == 0) { struct erase_info instr; ulong start, end; ulong block; start = simple_strtoul(argv[2], NULL, 10); end = simple_strtoul(argv[3], NULL, 10); start -= (unsigned long)onenand_chip.base; end -= (unsigned long)onenand_chip.base; if (!end || end < 0) end = start; printf("Erase block from %d to %d\n", start, end); for (block = start; block <= end; block++) { instr.addr = block << onenand_chip.erase_shift; instr.len = 1 << onenand_chip.erase_shift; ret = onenand_erase(&onenand_mtd, &instr); if (ret) { printf("erase failed %d\n", block); break; } } return 0; } if (strncmp(argv[1], "read", 4) == 0) { ulong addr = simple_strtoul(argv[2], NULL, 16); ulong ofs = simple_strtoul(argv[3], NULL, 16); size_t len = simple_strtoul(argv[4], NULL, 16); size_t retlen = 0; int oob = strncmp(argv[1], "read.oob", 8) ? 0 : 1; ofs -= (unsigned long)onenand_chip.base; if (oob) onenand_read_oob(&onenand_mtd, ofs, len, &retlen, (u_char *) addr); else onenand_read(&onenand_mtd, ofs, len, &retlen, (u_char *) addr); printf("Done\n"); return 0; } if (strncmp(argv[1], "write", 5) == 0) { ulong addr = simple_strtoul(argv[2], NULL, 16); ulong ofs = simple_strtoul(argv[3], NULL, 16); size_t len = simple_strtoul(argv[4], NULL, 16); size_t retlen = 0; ofs -= (unsigned long)onenand_chip.base; onenand_write(&onenand_mtd, ofs, len, &retlen, (u_char *) addr); printf("Done\n"); return 0; } if (strncmp(argv[1], "block", 5) == 0) { ulong addr = simple_strtoul(argv[2], NULL, 16); ulong block = simple_strtoul(argv[3], NULL, 10); ulong page = simple_strtoul(argv[4], NULL, 10); size_t len = simple_strtol(argv[5], NULL, 10); size_t retlen = 0; ulong ofs; int oob = strncmp(argv[1], "block.oob", 9) ? 0 : 1; ofs = block << onenand_chip.erase_shift; if (page) ofs += page << onenand_chip.page_shift; if (!len) { if (oob) len = 64; else len = 512; } if (oob) onenand_read_oob(&onenand_mtd, ofs, len, &retlen, (u_char *) addr); else onenand_read(&onenand_mtd, ofs, len, &retlen, (u_char *) addr); return 0; } break; } return 0; } U_BOOT_CMD( onenand, 6, 1, do_onenand, "onenand - OneNAND sub-system\n", "info - show available OneNAND devices\n" "onenand read[.oob] addr ofs len - read data at ofs with len to addr\n" "onenand write addr ofs len - write data at ofs with len from addr\n" "onenand erase saddr eaddr - erase block start addr to end addr\n" "onenand block[.oob] addr block [page] [len] - " "read data with (block [, page]) to addr" ); #endif /* CONFIG_CMD_ONENAND */ |