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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 | /* LowLevel function for ATMEL DataFlash support * Author : Hamid Ikdoumi (Atmel) * * 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 * */ #include <common.h> #include <config.h> #ifdef CONFIG_HAS_DATAFLASH #include <asm/hardware.h> #include <dataflash.h> AT91S_DATAFLASH_INFO dataflash_info[CFG_MAX_DATAFLASH_BANKS]; static AT91S_DataFlash DataFlashInst; int cs[][CFG_MAX_DATAFLASH_BANKS] = { {CFG_DATAFLASH_LOGIC_ADDR_CS0, 0}, /* Logical adress, CS */ {CFG_DATAFLASH_LOGIC_ADDR_CS3, 3} }; extern void AT91F_SpiInit (void); extern int AT91F_DataflashProbe (int i, AT91PS_DataflashDesc pDesc); extern int AT91F_DataFlashRead (AT91PS_DataFlash pDataFlash, unsigned long addr, unsigned long size, char *buffer); int AT91F_DataflashInit (void) { int i, j; int dfcode; AT91F_SpiInit (); for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) { dataflash_info[i].id = 0; dataflash_info[i].Device.pages_number = 0; dfcode = AT91F_DataflashProbe (cs[i][1], &dataflash_info[i].Desc); switch (dfcode) { case AT45DB161: dataflash_info[i].Device.pages_number = 4096; dataflash_info[i].Device.pages_size = 528; dataflash_info[i].Device.page_offset = 10; dataflash_info[i].Device.byte_mask = 0x300; dataflash_info[i].Device.cs = cs[i][1]; dataflash_info[i].Desc.DataFlash_state = IDLE; dataflash_info[i].logical_address = cs[i][0]; dataflash_info[i].id = dfcode; break; case AT45DB321: dataflash_info[i].Device.pages_number = 8192; dataflash_info[i].Device.pages_size = 528; dataflash_info[i].Device.page_offset = 10; dataflash_info[i].Device.byte_mask = 0x300; dataflash_info[i].Device.cs = cs[i][1]; dataflash_info[i].Desc.DataFlash_state = IDLE; dataflash_info[i].logical_address = cs[i][0]; dataflash_info[i].id = dfcode; break; case AT45DB642: dataflash_info[i].Device.pages_number = 8192; dataflash_info[i].Device.pages_size = 1056; dataflash_info[i].Device.page_offset = 11; dataflash_info[i].Device.byte_mask = 0x700; dataflash_info[i].Device.cs = cs[i][1]; dataflash_info[i].Desc.DataFlash_state = IDLE; dataflash_info[i].logical_address = cs[i][0]; dataflash_info[i].id = dfcode; break; default: break; } for (j = 0; j < dataflash_info[i].Device.pages_number; j++) dataflash_info[i].protect[j] = FLAG_PROTECT_SET; } return (1); } void dataflash_print_info (void) { int i; for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) { if (dataflash_info[i].id != 0) { printf ("DataFlash:"); switch (dataflash_info[i].id) { case AT45DB161: printf ("AT45DB161\n"); break; case AT45DB321: printf ("AT45DB321\n"); break; case AT45DB642: printf ("AT45DB642\n"); break; } printf ("Nb pages: %6d\n" "Page Size: %6d\n" "Size=%8d bytes\n" "Logical address: 0x%08X\n", (unsigned int) dataflash_info[i].Device.pages_number, (unsigned int) dataflash_info[i].Device.pages_size, (unsigned int) dataflash_info[i].Device.pages_number * dataflash_info[i].Device.pages_size, (unsigned int) dataflash_info[i].logical_address); } } } /*------------------------------------------------------------------------------*/ /* Function Name : AT91F_DataflashSelect */ /* Object : Select the correct device */ /*------------------------------------------------------------------------------*/ AT91PS_DataFlash AT91F_DataflashSelect (AT91PS_DataFlash pFlash, unsigned int *addr) { char addr_valid = 0; int i; for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) if ((*addr & 0xFF000000) == dataflash_info[i].logical_address) { addr_valid = 1; break; } if (!addr_valid) { pFlash = (AT91PS_DataFlash) 0; return pFlash; } pFlash->pDataFlashDesc = &(dataflash_info[i].Desc); pFlash->pDevice = &(dataflash_info[i].Device); *addr -= dataflash_info[i].logical_address; return (pFlash); } /*------------------------------------------------------------------------------*/ /* Function Name : addr_dataflash */ /* Object : Test if address is valid */ /*------------------------------------------------------------------------------*/ int addr_dataflash (unsigned long addr) { int addr_valid = 0; int i; for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) { if ((((int) addr) & 0xFF000000) == dataflash_info[i].logical_address) { addr_valid = 1; break; } } return addr_valid; } /*------------------------------------------------------------------------------*/ /* Function Name : read_dataflash */ /* Object : dataflash memory read */ /*------------------------------------------------------------------------------*/ int read_dataflash (unsigned long addr, unsigned long size, char *result) { int AddrToRead = addr; AT91PS_DataFlash pFlash = &DataFlashInst; pFlash = AT91F_DataflashSelect (pFlash, &AddrToRead); if (pFlash == 0) return -1; return (AT91F_DataFlashRead (pFlash, AddrToRead, size, result)); } /*-----------------------------------------------------------------------------*/ /* Function Name : write_dataflash */ /* Object : write a block in dataflash */ /*-----------------------------------------------------------------------------*/ int write_dataflash (unsigned long addr_dest, unsigned long addr_src, unsigned long size) { extern AT91S_DataFlashStatus AT91F_DataFlashWrite( AT91PS_DataFlash, uchar *, int, int); int AddrToWrite = addr_dest; AT91PS_DataFlash pFlash = &DataFlashInst; pFlash = AT91F_DataflashSelect (pFlash, &AddrToWrite); if (AddrToWrite == -1) return -1; return AT91F_DataFlashWrite (pFlash, (char *) addr_src, AddrToWrite, size); } void dataflash_perror (int err) { switch (err) { case ERR_OK: break; case ERR_TIMOUT: printf ("Timeout writing to DataFlash\n"); break; case ERR_PROTECTED: printf ("Can't write to protected DataFlash sectors\n"); break; case ERR_INVAL: printf ("Outside available DataFlash\n"); break; case ERR_UNKNOWN_FLASH_TYPE: printf ("Unknown Type of DataFlash\n"); break; case ERR_PROG_ERROR: printf ("General DataFlash Programming Error\n"); break; default: printf ("%s[%d] FIXME: rc=%d\n", __FILE__, __LINE__, err); break; } } #endif |