nand_samsung.c revision 1.9.2.2
1 1.9.2.2 tls /* $NetBSD: nand_samsung.c,v 1.9.2.2 2012/11/20 03:02:13 tls Exp $ */ 2 1.9.2.2 tls 3 1.9.2.2 tls /*- 4 1.9.2.2 tls * Copyright (c) 2012 The NetBSD Foundation, Inc. 5 1.9.2.2 tls * All rights reserved. 6 1.9.2.2 tls * 7 1.9.2.2 tls * This code is derived from software contributed to The NetBSD Foundation 8 1.9.2.2 tls * by Adam Hoka. 9 1.9.2.2 tls * 10 1.9.2.2 tls * Redistribution and use in source and binary forms, with or without 11 1.9.2.2 tls * modification, are permitted provided that the following conditions 12 1.9.2.2 tls * are met: 13 1.9.2.2 tls * 1. Redistributions of source code must retain the above copyright 14 1.9.2.2 tls * notice, this list of conditions and the following disclaimer. 15 1.9.2.2 tls * 2. Redistributions in binary form must reproduce the above copyright 16 1.9.2.2 tls * notice, this list of conditions and the following disclaimer in the 17 1.9.2.2 tls * documentation and/or other materials provided with the distribution. 18 1.9.2.2 tls * 19 1.9.2.2 tls * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.9.2.2 tls * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.9.2.2 tls * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.9.2.2 tls * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.9.2.2 tls * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.9.2.2 tls * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.9.2.2 tls * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.9.2.2 tls * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.9.2.2 tls * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.9.2.2 tls * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.9.2.2 tls * POSSIBILITY OF SUCH DAMAGE. 30 1.9.2.2 tls */ 31 1.9.2.2 tls 32 1.9.2.2 tls /* 33 1.9.2.2 tls * Device specific functions for legacy Samsung NAND chips 34 1.9.2.2 tls * 35 1.9.2.2 tls * Currently supported: 36 1.9.2.2 tls * K9XXG08UXA 37 1.9.2.2 tls */ 38 1.9.2.2 tls 39 1.9.2.2 tls #include <sys/cdefs.h> 40 1.9.2.2 tls __KERNEL_RCSID(0, "$NetBSD: nand_samsung.c,v 1.9.2.2 2012/11/20 03:02:13 tls Exp $"); 41 1.9.2.2 tls 42 1.9.2.2 tls #include "nand.h" 43 1.9.2.2 tls #include "onfi.h" 44 1.9.2.2 tls 45 1.9.2.2 tls enum { 46 1.9.2.2 tls NAND_SAMSUNG_PAGEMASK = 0x3, 47 1.9.2.2 tls NAND_SAMSUNG_SPAREMASK = 0x1 << 2, 48 1.9.2.2 tls NAND_SAMSUNG_BLOCKMASK = 0x3 << 4, 49 1.9.2.2 tls NAND_SAMSUNG_BITSMASK = 0x1 << 6 50 1.9.2.2 tls }; 51 1.9.2.2 tls 52 1.9.2.2 tls enum { 53 1.9.2.2 tls NAND_SAMSUNG_PLANENUMMASK = 0x3 << 2, 54 1.9.2.2 tls NAND_SAMSUNG_PLANESIZEMASK = 0x7 << 4 55 1.9.2.2 tls }; 56 1.9.2.2 tls 57 1.9.2.2 tls int 58 1.9.2.2 tls nand_read_parameters_samsung(device_t self, struct nand_chip * const chip) 59 1.9.2.2 tls { 60 1.9.2.2 tls uint8_t mfgrid; 61 1.9.2.2 tls uint8_t devid; 62 1.9.2.2 tls uint8_t params1; 63 1.9.2.2 tls uint8_t params2; 64 1.9.2.2 tls uint8_t params3; 65 1.9.2.2 tls 66 1.9.2.2 tls /* Only for Samsung devices, obviously */ 67 1.9.2.2 tls if (chip->nc_manf_id != NAND_MFR_SAMSUNG) { 68 1.9.2.2 tls return 1; 69 1.9.2.2 tls } 70 1.9.2.2 tls 71 1.9.2.2 tls nand_select(self, true); 72 1.9.2.2 tls nand_command(self, ONFI_READ_ID); 73 1.9.2.2 tls nand_address(self, 0x00); 74 1.9.2.2 tls nand_read_1(self, &mfgrid); 75 1.9.2.2 tls nand_read_1(self, &devid); 76 1.9.2.2 tls nand_read_1(self, ¶ms1); 77 1.9.2.2 tls nand_read_1(self, ¶ms2); 78 1.9.2.2 tls nand_read_1(self, ¶ms3); 79 1.9.2.2 tls nand_select(self, false); 80 1.9.2.2 tls 81 1.9.2.2 tls aprint_debug_dev(self, 82 1.9.2.2 tls "ID Definition table: 0x%2.x 0x%2.x 0x%2.x 0x%2.x 0x%2.x\n", 83 1.9.2.2 tls mfgrid, devid, params1, params2, params3); 84 1.9.2.2 tls 85 1.9.2.2 tls /* K9XXG08UXA */ 86 1.9.2.2 tls if (devid == 0xdc) { 87 1.9.2.2 tls /* From the documentation */ 88 1.9.2.2 tls chip->nc_addr_cycles_column = 2; 89 1.9.2.2 tls chip->nc_addr_cycles_row = 3; 90 1.9.2.2 tls 91 1.9.2.2 tls switch (params2 & NAND_SAMSUNG_PAGEMASK) { 92 1.9.2.2 tls case 0x0: 93 1.9.2.2 tls chip->nc_page_size = 1024; 94 1.9.2.2 tls break; 95 1.9.2.2 tls case 0x1: 96 1.9.2.2 tls chip->nc_page_size = 2048; 97 1.9.2.2 tls break; 98 1.9.2.2 tls case 0x2: 99 1.9.2.2 tls chip->nc_page_size = 4096; 100 1.9.2.2 tls break; 101 1.9.2.2 tls case 0x3: 102 1.9.2.2 tls chip->nc_page_size = 8192; 103 1.9.2.2 tls break; 104 1.9.2.2 tls default: 105 1.9.2.2 tls KASSERTMSG(false, "ID Data parsing bug detected!"); 106 1.9.2.2 tls } 107 1.9.2.2 tls 108 1.9.2.2 tls switch ((params2 & NAND_SAMSUNG_BLOCKMASK) >> 4) { 109 1.9.2.2 tls case 0x0: 110 1.9.2.2 tls chip->nc_block_size = 64 * 1024; 111 1.9.2.2 tls break; 112 1.9.2.2 tls case 0x1: 113 1.9.2.2 tls chip->nc_block_size = 128 * 1024; 114 1.9.2.2 tls break; 115 1.9.2.2 tls case 0x2: 116 1.9.2.2 tls chip->nc_block_size = 256 * 1024; 117 1.9.2.2 tls break; 118 1.9.2.2 tls case 0x3: 119 1.9.2.2 tls chip->nc_block_size = 512 * 1024; 120 1.9.2.2 tls break; 121 1.9.2.2 tls default: 122 1.9.2.2 tls KASSERTMSG(false, "ID Data parsing bug detected!"); 123 1.9.2.2 tls } 124 1.9.2.2 tls 125 1.9.2.2 tls /* 8/16 bytes per 512 bytes! XXX do i get this right? */ 126 1.9.2.2 tls switch ((params2 & NAND_SAMSUNG_SPAREMASK) >> 2) { 127 1.9.2.2 tls case 0x0: 128 1.9.2.2 tls chip->nc_spare_size = 8 * chip->nc_page_size / 512; 129 1.9.2.2 tls break; 130 1.9.2.2 tls case 0x1: 131 1.9.2.2 tls chip->nc_spare_size = 16 * chip->nc_page_size / 512; 132 1.9.2.2 tls break; 133 1.9.2.2 tls default: 134 1.9.2.2 tls KASSERTMSG(false, "ID Data parsing bug detected!"); 135 1.9.2.2 tls } 136 1.9.2.2 tls 137 1.9.2.2 tls switch ((params2 & NAND_SAMSUNG_BITSMASK) >> 6) { 138 1.9.2.2 tls case 0x0: 139 1.9.2.2 tls /* its an 8bit chip */ 140 1.9.2.2 tls break; 141 1.9.2.2 tls case 0x1: 142 1.9.2.2 tls chip->nc_flags |= NC_BUSWIDTH_16; 143 1.9.2.2 tls break; 144 1.9.2.2 tls default: 145 1.9.2.2 tls KASSERTMSG(false, "ID Data parsing bug detected!"); 146 1.9.2.2 tls } 147 1.9.2.2 tls 148 1.9.2.2 tls switch ((params3 & NAND_SAMSUNG_PLANENUMMASK) >> 2) { 149 1.9.2.2 tls case 0x0: 150 1.9.2.2 tls chip->nc_num_luns = 1; 151 1.9.2.2 tls break; 152 1.9.2.2 tls case 0x1: 153 1.9.2.2 tls chip->nc_num_luns = 2; 154 1.9.2.2 tls break; 155 1.9.2.2 tls case 0x2: 156 1.9.2.2 tls chip->nc_num_luns = 4; 157 1.9.2.2 tls break; 158 1.9.2.2 tls case 0x3: 159 1.9.2.2 tls chip->nc_num_luns = 8; 160 1.9.2.2 tls break; 161 1.9.2.2 tls default: 162 1.9.2.2 tls KASSERTMSG(false, "ID Data parsing bug detected!"); 163 1.9.2.2 tls } 164 1.9.2.2 tls 165 1.9.2.2 tls /* This one reads in megabit for some reason */ 166 1.9.2.2 tls uint64_t planesize = 0; 167 1.9.2.2 tls switch ((params3 & NAND_SAMSUNG_PLANESIZEMASK) >> 4) { 168 1.9.2.2 tls case 0x0: 169 1.9.2.2 tls planesize = 64 * 1024 * 1024 / 8; 170 1.9.2.2 tls break; 171 1.9.2.2 tls case 0x1: 172 1.9.2.2 tls planesize = 128 * 1024 * 1024 / 8; 173 1.9.2.2 tls break; 174 1.9.2.2 tls case 0x2: 175 1.9.2.2 tls planesize = 256 * 1024 * 1024 / 8; 176 1.9.2.2 tls break; 177 1.9.2.2 tls case 0x3: 178 1.9.2.2 tls planesize = 512 * 1024 * 1024 / 8; 179 1.9.2.2 tls break; 180 1.9.2.2 tls case 0x4: 181 1.9.2.2 tls planesize = 1024 * 1024 * 1024 / 8; 182 1.9.2.2 tls break; 183 1.9.2.2 tls case 0x5: 184 1.9.2.2 tls planesize = 2ul * 1024 * 1024 * 1024 / 8; 185 1.9.2.2 tls break; 186 1.9.2.2 tls case 0x6: 187 1.9.2.2 tls planesize = 4ul * 1024 * 1024 * 1024 / 8; 188 1.9.2.2 tls break; 189 1.9.2.2 tls case 0x7: 190 1.9.2.2 tls planesize = 8ul * 1024 * 1024 * 1024 / 8; 191 1.9.2.2 tls break; 192 1.9.2.2 tls default: 193 1.9.2.2 tls KASSERTMSG(false, "ID Data parsing bug detected!"); 194 1.9.2.2 tls } 195 1.9.2.2 tls 196 1.9.2.2 tls chip->nc_lun_blocks = planesize / chip->nc_block_size; 197 1.9.2.2 tls chip->nc_size = planesize * chip->nc_num_luns; 198 1.9.2.2 tls 199 1.9.2.2 tls aprint_normal_dev(self, "vendor: Samsung, model: K9XXG08UXA\n"); 200 1.9.2.2 tls } else { 201 1.9.2.2 tls return 1; 202 1.9.2.2 tls } 203 1.9.2.2 tls 204 1.9.2.2 tls return 0; 205 1.9.2.2 tls } 206
Indexes created Sat Oct 18 17:09:52 GMT 2025