wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 1 | /* |
wdenk | 6914128 | 2003-07-07 20:07:54 +0000 | [diff] [blame] | 2 | * (C) Copyright 2000-2003 |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * board/config.h - configuration options, board specific |
| 26 | */ |
| 27 | |
| 28 | #ifndef __CONFIG_H |
| 29 | #define __CONFIG_H |
| 30 | |
| 31 | /* |
| 32 | * High Level Configuration Options |
| 33 | * (easy to change) |
| 34 | */ |
| 35 | |
| 36 | #define CONFIG_MPC850 1 /* This is a MPC850 CPU */ |
| 37 | #define CONFIG_TQM850L 1 /* ...on a TQM8xxL module */ |
| 38 | |
| 39 | #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */ |
| 40 | #undef CONFIG_8xx_CONS_SMC2 |
| 41 | #undef CONFIG_8xx_CONS_NONE |
| 42 | #define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */ |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 43 | |
wdenk | fb229ae | 2003-08-07 22:18:11 +0000 | [diff] [blame] | 44 | #define CONFIG_BOOTCOUNT_LIMIT |
| 45 | |
| 46 | #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */ |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 47 | |
| 48 | #define CONFIG_BOARD_TYPES 1 /* support board types */ |
| 49 | |
| 50 | #define CONFIG_PREBOOT "echo;echo Type \"run flash_nfs\" to mount root filesystem over NFS;echo" |
| 51 | |
| 52 | #undef CONFIG_BOOTARGS |
wdenk | 34b613e | 2002-12-17 01:51:00 +0000 | [diff] [blame] | 53 | |
| 54 | #define CONFIG_EXTRA_ENV_SETTINGS \ |
wdenk | fb229ae | 2003-08-07 22:18:11 +0000 | [diff] [blame] | 55 | "netdev=eth0\0" \ |
wdenk | 34b613e | 2002-12-17 01:51:00 +0000 | [diff] [blame] | 56 | "nfsargs=setenv bootargs root=/dev/nfs rw " \ |
| 57 | "nfsroot=$(serverip):$(rootpath)\0" \ |
| 58 | "ramargs=setenv bootargs root=/dev/ram rw\0" \ |
| 59 | "addip=setenv bootargs $(bootargs) " \ |
| 60 | "ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask)" \ |
| 61 | ":$(hostname):$(netdev):off panic=1\0" \ |
| 62 | "flash_nfs=run nfsargs addip;" \ |
| 63 | "bootm $(kernel_addr)\0" \ |
| 64 | "flash_self=run ramargs addip;" \ |
| 65 | "bootm $(kernel_addr) $(ramdisk_addr)\0" \ |
| 66 | "net_nfs=tftp 200000 $(bootfile);run nfsargs addip;bootm\0" \ |
| 67 | "rootpath=/opt/eldk/ppc_8xx\0" \ |
wdenk | ec34272 | 2004-01-31 20:13:31 +0000 | [diff] [blame] | 68 | "bootfile=/tftpboot/TQM850L/uImage\0" \ |
wdenk | 34b613e | 2002-12-17 01:51:00 +0000 | [diff] [blame] | 69 | "kernel_addr=40040000\0" \ |
| 70 | "ramdisk_addr=40100000\0" \ |
| 71 | "" |
| 72 | #define CONFIG_BOOTCOMMAND "run flash_self" |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 73 | |
| 74 | #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */ |
| 75 | #undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */ |
| 76 | |
| 77 | #undef CONFIG_WATCHDOG /* watchdog disabled */ |
| 78 | |
| 79 | #define CONFIG_STATUS_LED 1 /* Status LED enabled */ |
| 80 | |
| 81 | #undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */ |
| 82 | |
| 83 | #define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE) |
| 84 | |
| 85 | #define CONFIG_MAC_PARTITION |
| 86 | #define CONFIG_DOS_PARTITION |
| 87 | |
| 88 | #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */ |
| 89 | |
| 90 | #define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \ |
wdenk | 34b613e | 2002-12-17 01:51:00 +0000 | [diff] [blame] | 91 | CFG_CMD_ASKENV | \ |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 92 | CFG_CMD_DHCP | \ |
| 93 | CFG_CMD_IDE | \ |
| 94 | CFG_CMD_DATE ) |
| 95 | |
| 96 | /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ |
| 97 | #include <cmd_confdefs.h> |
| 98 | |
| 99 | /* |
| 100 | * Miscellaneous configurable options |
| 101 | */ |
| 102 | #define CFG_LONGHELP /* undef to save memory */ |
wdenk | 34b613e | 2002-12-17 01:51:00 +0000 | [diff] [blame] | 103 | #define CFG_PROMPT "=> " /* Monitor Command Prompt */ |
| 104 | |
| 105 | #if 0 |
| 106 | #define CFG_HUSH_PARSER 1 /* use "hush" command parser */ |
| 107 | #endif |
| 108 | #ifdef CFG_HUSH_PARSER |
| 109 | #define CFG_PROMPT_HUSH_PS2 "> " |
| 110 | #endif |
| 111 | |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 112 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) |
wdenk | 34b613e | 2002-12-17 01:51:00 +0000 | [diff] [blame] | 113 | #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */ |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 114 | #else |
wdenk | 34b613e | 2002-12-17 01:51:00 +0000 | [diff] [blame] | 115 | #define CFG_CBSIZE 256 /* Console I/O Buffer Size */ |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 116 | #endif |
| 117 | #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */ |
wdenk | 34b613e | 2002-12-17 01:51:00 +0000 | [diff] [blame] | 118 | #define CFG_MAXARGS 16 /* max number of command args */ |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 119 | #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */ |
| 120 | |
| 121 | #define CFG_MEMTEST_START 0x0400000 /* memtest works on */ |
| 122 | #define CFG_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */ |
| 123 | |
| 124 | #define CFG_LOAD_ADDR 0x100000 /* default load address */ |
| 125 | |
wdenk | 34b613e | 2002-12-17 01:51:00 +0000 | [diff] [blame] | 126 | #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */ |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 127 | |
| 128 | #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } |
| 129 | |
| 130 | /* |
| 131 | * Low Level Configuration Settings |
| 132 | * (address mappings, register initial values, etc.) |
| 133 | * You should know what you are doing if you make changes here. |
| 134 | */ |
| 135 | /*----------------------------------------------------------------------- |
| 136 | * Internal Memory Mapped Register |
| 137 | */ |
| 138 | #define CFG_IMMR 0xFFF00000 |
| 139 | |
| 140 | /*----------------------------------------------------------------------- |
| 141 | * Definitions for initial stack pointer and data area (in DPRAM) |
| 142 | */ |
| 143 | #define CFG_INIT_RAM_ADDR CFG_IMMR |
| 144 | #define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */ |
| 145 | #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */ |
| 146 | #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) |
| 147 | #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET |
| 148 | |
| 149 | /*----------------------------------------------------------------------- |
| 150 | * Start addresses for the final memory configuration |
| 151 | * (Set up by the startup code) |
| 152 | * Please note that CFG_SDRAM_BASE _must_ start at 0 |
| 153 | */ |
| 154 | #define CFG_SDRAM_BASE 0x00000000 |
| 155 | #define CFG_FLASH_BASE 0x40000000 |
| 156 | #define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */ |
| 157 | #define CFG_MONITOR_BASE CFG_FLASH_BASE |
| 158 | #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */ |
| 159 | |
| 160 | /* |
| 161 | * For booting Linux, the board info and command line data |
| 162 | * have to be in the first 8 MB of memory, since this is |
| 163 | * the maximum mapped by the Linux kernel during initialization. |
| 164 | */ |
| 165 | #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */ |
| 166 | |
| 167 | /*----------------------------------------------------------------------- |
| 168 | * FLASH organization |
| 169 | */ |
| 170 | #define CFG_MAX_FLASH_BANKS 2 /* max number of memory banks */ |
wdenk | eda4208 | 2003-01-17 16:27:01 +0000 | [diff] [blame] | 171 | #define CFG_MAX_FLASH_SECT 71 /* max number of sectors on one chip */ |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 172 | |
| 173 | #define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */ |
| 174 | #define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */ |
| 175 | |
| 176 | #define CFG_ENV_IS_IN_FLASH 1 |
| 177 | #define CFG_ENV_OFFSET 0x8000 /* Offset of Environment Sector */ |
| 178 | #define CFG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */ |
| 179 | |
| 180 | /* Address and size of Redundant Environment Sector */ |
| 181 | #define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET+CFG_ENV_SIZE) |
| 182 | #define CFG_ENV_SIZE_REDUND (CFG_ENV_SIZE) |
| 183 | |
| 184 | /*----------------------------------------------------------------------- |
| 185 | * Hardware Information Block |
| 186 | */ |
| 187 | #define CFG_HWINFO_OFFSET 0x0003FFC0 /* offset of HW Info block */ |
| 188 | #define CFG_HWINFO_SIZE 0x00000040 /* size of HW Info block */ |
| 189 | #define CFG_HWINFO_MAGIC 0x54514D38 /* 'TQM8' */ |
| 190 | |
| 191 | /*----------------------------------------------------------------------- |
| 192 | * Cache Configuration |
| 193 | */ |
| 194 | #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */ |
| 195 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) |
| 196 | #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */ |
| 197 | #endif |
| 198 | |
| 199 | /*----------------------------------------------------------------------- |
| 200 | * SYPCR - System Protection Control 11-9 |
| 201 | * SYPCR can only be written once after reset! |
| 202 | *----------------------------------------------------------------------- |
| 203 | * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze |
| 204 | */ |
| 205 | #if defined(CONFIG_WATCHDOG) |
| 206 | #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \ |
| 207 | SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP) |
| 208 | #else |
| 209 | #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP) |
| 210 | #endif |
| 211 | |
| 212 | /*----------------------------------------------------------------------- |
| 213 | * SIUMCR - SIU Module Configuration 11-6 |
| 214 | *----------------------------------------------------------------------- |
| 215 | * PCMCIA config., multi-function pin tri-state |
| 216 | */ |
| 217 | #ifndef CONFIG_CAN_DRIVER |
| 218 | #define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01) |
| 219 | #else /* we must activate GPL5 in the SIUMCR for CAN */ |
| 220 | #define CFG_SIUMCR (SIUMCR_DBGC11 | SIUMCR_DBPC00 | SIUMCR_MLRC01) |
| 221 | #endif /* CONFIG_CAN_DRIVER */ |
| 222 | |
| 223 | /*----------------------------------------------------------------------- |
| 224 | * TBSCR - Time Base Status and Control 11-26 |
| 225 | *----------------------------------------------------------------------- |
| 226 | * Clear Reference Interrupt Status, Timebase freezing enabled |
| 227 | */ |
| 228 | #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF) |
| 229 | |
| 230 | /*----------------------------------------------------------------------- |
| 231 | * RTCSC - Real-Time Clock Status and Control Register 11-27 |
| 232 | *----------------------------------------------------------------------- |
| 233 | */ |
| 234 | #define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE) |
| 235 | |
| 236 | /*----------------------------------------------------------------------- |
| 237 | * PISCR - Periodic Interrupt Status and Control 11-31 |
| 238 | *----------------------------------------------------------------------- |
| 239 | * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled |
| 240 | */ |
| 241 | #define CFG_PISCR (PISCR_PS | PISCR_PITF) |
| 242 | |
| 243 | /*----------------------------------------------------------------------- |
| 244 | * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30 |
| 245 | *----------------------------------------------------------------------- |
| 246 | * Reset PLL lock status sticky bit, timer expired status bit and timer |
| 247 | * interrupt status bit |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 248 | */ |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 249 | #define CFG_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST) |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 250 | |
| 251 | /*----------------------------------------------------------------------- |
| 252 | * SCCR - System Clock and reset Control Register 15-27 |
| 253 | *----------------------------------------------------------------------- |
| 254 | * Set clock output, timebase and RTC source and divider, |
| 255 | * power management and some other internal clocks |
| 256 | */ |
| 257 | #define SCCR_MASK SCCR_EBDF11 |
wdenk | c78bf13 | 2004-04-24 23:23:30 +0000 | [diff] [blame] | 258 | #define CFG_SCCR (SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \ |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 259 | SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \ |
| 260 | SCCR_DFALCD00) |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 261 | |
| 262 | /*----------------------------------------------------------------------- |
| 263 | * PCMCIA stuff |
| 264 | *----------------------------------------------------------------------- |
| 265 | * |
| 266 | */ |
| 267 | #define CFG_PCMCIA_MEM_ADDR (0xE0000000) |
| 268 | #define CFG_PCMCIA_MEM_SIZE ( 64 << 20 ) |
| 269 | #define CFG_PCMCIA_DMA_ADDR (0xE4000000) |
| 270 | #define CFG_PCMCIA_DMA_SIZE ( 64 << 20 ) |
| 271 | #define CFG_PCMCIA_ATTRB_ADDR (0xE8000000) |
| 272 | #define CFG_PCMCIA_ATTRB_SIZE ( 64 << 20 ) |
| 273 | #define CFG_PCMCIA_IO_ADDR (0xEC000000) |
| 274 | #define CFG_PCMCIA_IO_SIZE ( 64 << 20 ) |
| 275 | |
| 276 | /*----------------------------------------------------------------------- |
| 277 | * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter) |
| 278 | *----------------------------------------------------------------------- |
| 279 | */ |
| 280 | |
| 281 | #define CONFIG_IDE_8xx_PCCARD 1 /* Use IDE with PC Card Adapter */ |
| 282 | |
| 283 | #undef CONFIG_IDE_8xx_DIRECT /* Direct IDE not supported */ |
| 284 | #undef CONFIG_IDE_LED /* LED for ide not supported */ |
| 285 | #undef CONFIG_IDE_RESET /* reset for ide not supported */ |
| 286 | |
| 287 | #define CFG_IDE_MAXBUS 1 /* max. 1 IDE bus */ |
| 288 | #define CFG_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */ |
| 289 | |
| 290 | #define CFG_ATA_IDE0_OFFSET 0x0000 |
| 291 | |
| 292 | #define CFG_ATA_BASE_ADDR CFG_PCMCIA_MEM_ADDR |
| 293 | |
| 294 | /* Offset for data I/O */ |
| 295 | #define CFG_ATA_DATA_OFFSET (CFG_PCMCIA_MEM_SIZE + 0x320) |
| 296 | |
| 297 | /* Offset for normal register accesses */ |
| 298 | #define CFG_ATA_REG_OFFSET (2 * CFG_PCMCIA_MEM_SIZE + 0x320) |
| 299 | |
| 300 | /* Offset for alternate registers */ |
| 301 | #define CFG_ATA_ALT_OFFSET 0x0100 |
| 302 | |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 303 | /*----------------------------------------------------------------------- |
| 304 | * |
| 305 | *----------------------------------------------------------------------- |
| 306 | * |
| 307 | */ |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 308 | #define CFG_DER 0 |
| 309 | |
| 310 | /* |
| 311 | * Init Memory Controller: |
| 312 | * |
| 313 | * BR0/1 and OR0/1 (FLASH) |
| 314 | */ |
| 315 | |
| 316 | #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */ |
| 317 | #define FLASH_BASE1_PRELIM 0x60000000 /* FLASH bank #0 */ |
| 318 | |
| 319 | /* used to re-map FLASH both when starting from SRAM or FLASH: |
| 320 | * restrict access enough to keep SRAM working (if any) |
| 321 | * but not too much to meddle with FLASH accesses |
| 322 | */ |
| 323 | #define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */ |
| 324 | #define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */ |
| 325 | |
| 326 | /* |
| 327 | * FLASH timing: |
| 328 | */ |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 329 | #define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \ |
| 330 | OR_SCY_3_CLK | OR_EHTR | OR_BI) |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 331 | |
| 332 | #define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH) |
| 333 | #define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH) |
| 334 | #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V ) |
| 335 | |
| 336 | #define CFG_OR1_REMAP CFG_OR0_REMAP |
| 337 | #define CFG_OR1_PRELIM CFG_OR0_PRELIM |
| 338 | #define CFG_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_V ) |
| 339 | |
| 340 | /* |
| 341 | * BR2/3 and OR2/3 (SDRAM) |
| 342 | * |
| 343 | */ |
| 344 | #define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */ |
| 345 | #define SDRAM_BASE3_PRELIM 0x20000000 /* SDRAM bank #1 */ |
| 346 | #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */ |
| 347 | |
| 348 | /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */ |
| 349 | #define CFG_OR_TIMING_SDRAM 0x00000A00 |
| 350 | |
| 351 | #define CFG_OR2_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM ) |
| 352 | #define CFG_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) |
| 353 | |
| 354 | #ifndef CONFIG_CAN_DRIVER |
| 355 | #define CFG_OR3_PRELIM CFG_OR2_PRELIM |
| 356 | #define CFG_BR3_PRELIM ((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) |
| 357 | #else /* CAN uses CS3#, so we can have only one SDRAM bank anyway */ |
| 358 | #define CFG_CAN_BASE 0xC0000000 /* CAN mapped at 0xC0000000 */ |
| 359 | #define CFG_CAN_OR_AM 0xFFFF8000 /* 32 kB address mask */ |
| 360 | #define CFG_OR3_CAN (CFG_CAN_OR_AM | OR_G5LA | OR_BI) |
| 361 | #define CFG_BR3_CAN ((CFG_CAN_BASE & BR_BA_MSK) | \ |
| 362 | BR_PS_8 | BR_MS_UPMB | BR_V ) |
| 363 | #endif /* CONFIG_CAN_DRIVER */ |
| 364 | |
| 365 | /* |
| 366 | * Memory Periodic Timer Prescaler |
| 367 | * |
| 368 | * The Divider for PTA (refresh timer) configuration is based on an |
| 369 | * example SDRAM configuration (64 MBit, one bank). The adjustment to |
| 370 | * the number of chip selects (NCS) and the actually needed refresh |
| 371 | * rate is done by setting MPTPR. |
| 372 | * |
| 373 | * PTA is calculated from |
| 374 | * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS) |
| 375 | * |
| 376 | * gclk CPU clock (not bus clock!) |
| 377 | * Trefresh Refresh cycle * 4 (four word bursts used) |
| 378 | * |
| 379 | * 4096 Rows from SDRAM example configuration |
| 380 | * 1000 factor s -> ms |
| 381 | * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration |
| 382 | * 4 Number of refresh cycles per period |
| 383 | * 64 Refresh cycle in ms per number of rows |
| 384 | * -------------------------------------------- |
| 385 | * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000 |
| 386 | * |
| 387 | * 50 MHz => 50.000.000 / Divider = 98 |
| 388 | * 66 Mhz => 66.000.000 / Divider = 129 |
| 389 | * 80 Mhz => 80.000.000 / Divider = 156 |
| 390 | */ |
wdenk | c78bf13 | 2004-04-24 23:23:30 +0000 | [diff] [blame] | 391 | |
| 392 | #define CFG_PTA_PER_CLK ((4096 * 32 * 1000) / (4 * 64)) |
| 393 | #define CFG_MAMR_PTA 98 |
wdenk | f467556 | 2002-10-02 14:20:15 +0000 | [diff] [blame] | 394 | |
| 395 | /* |
| 396 | * For 16 MBit, refresh rates could be 31.3 us |
| 397 | * (= 64 ms / 2K = 125 / quad bursts). |
| 398 | * For a simpler initialization, 15.6 us is used instead. |
| 399 | * |
| 400 | * #define CFG_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks |
| 401 | * #define CFG_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank |
| 402 | */ |
| 403 | #define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */ |
| 404 | #define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */ |
| 405 | |
| 406 | /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */ |
| 407 | #define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */ |
| 408 | #define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */ |
| 409 | |
| 410 | /* |
| 411 | * MAMR settings for SDRAM |
| 412 | */ |
| 413 | |
| 414 | /* 8 column SDRAM */ |
| 415 | #define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ |
| 416 | MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \ |
| 417 | MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) |
| 418 | /* 9 column SDRAM */ |
| 419 | #define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ |
| 420 | MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \ |
| 421 | MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) |
| 422 | |
| 423 | |
| 424 | /* |
| 425 | * Internal Definitions |
| 426 | * |
| 427 | * Boot Flags |
| 428 | */ |
| 429 | #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */ |
| 430 | #define BOOTFLAG_WARM 0x02 /* Software reboot */ |
| 431 | |
| 432 | #endif /* __CONFIG_H */ |