wdenk | 8966f33 | 2002-10-31 23:30:59 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * (C) Copyright 2000 |
| 3 | * Murray Jensen <Murray.Jensen@cmst.csiro.au> |
| 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 | * Config header file for Hymod board |
| 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_MPC8260 1 /* This is an MPC8260 CPU */ |
| 37 | #define CONFIG_HYMOD 1 /* ...on a Hymod board */ |
| 38 | |
| 39 | #define CONFIG_BOARD_POSTCLK_INIT /* have board_postclk_init() function */ |
| 40 | |
| 41 | /* |
| 42 | * select serial console configuration |
| 43 | * |
| 44 | * if either CONFIG_CONS_ON_SMC or CONFIG_CONS_ON_SCC is selected, then |
| 45 | * CONFIG_CONS_INDEX must be set to the channel number (1-2 for SMC, 1-4 |
| 46 | * for SCC). |
| 47 | * |
| 48 | * if CONFIG_CONS_NONE is defined, then the serial console routines must |
| 49 | * defined elsewhere (for example, on the cogent platform, there are serial |
| 50 | * ports on the motherboard which are used for the serial console - see |
| 51 | * cogent/cma101/serial.[ch]). |
| 52 | */ |
| 53 | #undef CONFIG_CONS_ON_SMC /* define if console on SMC */ |
| 54 | #define CONFIG_CONS_ON_SCC /* define if console on SCC */ |
| 55 | #undef CONFIG_CONS_NONE /* define if console on something else*/ |
| 56 | #define CONFIG_CONS_INDEX 1 /* which serial channel for console */ |
| 57 | #define CONFIG_CONS_USE_EXTC /* SMC/SCC use ext clock not brg_clk */ |
| 58 | #define CONFIG_CONS_EXTC_RATE 3686400 /* SMC/SCC ext clk rate in Hz */ |
| 59 | #define CONFIG_CONS_EXTC_PINSEL 0 /* pin select 0=CLK3/CLK9,1=CLK5/CLK15*/ |
| 60 | |
| 61 | /* |
| 62 | * select ethernet configuration |
| 63 | * |
| 64 | * if either CONFIG_ETHER_ON_SCC or CONFIG_ETHER_ON_FCC is selected, then |
| 65 | * CONFIG_ETHER_INDEX must be set to the channel number (1-4 for SCC, 1-3 |
| 66 | * for FCC) |
| 67 | * |
| 68 | * if CONFIG_ETHER_NONE is defined, then either the ethernet routines must be |
| 69 | * defined elsewhere (as for the console), or CFG_CMD_NET must be removed |
| 70 | * from CONFIG_COMMANDS to remove support for networking. |
| 71 | */ |
| 72 | #undef CONFIG_ETHER_ON_SCC /* define if ether on SCC */ |
| 73 | #define CONFIG_ETHER_ON_FCC /* define if ether on FCC */ |
| 74 | #undef CONFIG_ETHER_NONE /* define if ether on something else */ |
| 75 | #define CONFIG_ETHER_INDEX 1 /* which channel for ether */ |
| 76 | |
| 77 | #if (CONFIG_ETHER_INDEX == 1) |
| 78 | |
| 79 | /* |
| 80 | * - Rx-CLK is CLK10 |
| 81 | * - Tx-CLK is CLK11 |
| 82 | * - RAM for BD/Buffers is on the 60x Bus (see 28-13) |
| 83 | * - Enable Full Duplex in FSMR |
| 84 | */ |
| 85 | # define CFG_CMXFCR_MASK (CMXFCR_FC1|CMXFCR_RF1CS_MSK|CMXFCR_TF1CS_MSK) |
| 86 | # define CFG_CMXFCR_VALUE (CMXFCR_RF1CS_CLK10|CMXFCR_TF1CS_CLK11) |
| 87 | # define CFG_CPMFCR_RAMTYPE 0 |
| 88 | # define CFG_FCC_PSMR (FCC_PSMR_FDE|FCC_PSMR_LPB) |
| 89 | |
| 90 | #elif (CONFIG_ETHER_INDEX == 2) |
| 91 | |
| 92 | /* |
| 93 | * - Rx-CLK is CLK13 |
| 94 | * - Tx-CLK is CLK14 |
| 95 | * - RAM for BD/Buffers is on the 60x Bus (see 28-13) |
| 96 | * - Enable Full Duplex in FSMR |
| 97 | */ |
| 98 | # define CFG_CMXFCR_MASK (CMXFCR_FC2|CMXFCR_RF2CS_MSK|CMXFCR_TF2CS_MSK) |
| 99 | # define CFG_CMXFCR_VALUE (CMXFCR_RF2CS_CLK13|CMXFCR_TF2CS_CLK14) |
| 100 | # define CFG_CPMFCR_RAMTYPE 0 |
| 101 | # define CFG_FCC_PSMR (FCC_PSMR_FDE|FCC_PSMR_LPB) |
| 102 | |
| 103 | #elif (CONFIG_ETHER_INDEX == 3) |
| 104 | |
| 105 | /* |
| 106 | * - Rx-CLK is CLK15 |
| 107 | * - Tx-CLK is CLK16 |
| 108 | * - RAM for BD/Buffers is on the 60x Bus (see 28-13) |
| 109 | * - Enable Full Duplex in FSMR |
| 110 | */ |
| 111 | # define CFG_CMXFCR_MASK (CMXFCR_FC3|CMXFCR_RF3CS_MSK|CMXFCR_TF3CS_MSK) |
| 112 | # define CFG_CMXFCR_VALUE (CMXFCR_RF3CS_CLK15|CMXFCR_TF3CS_CLK16) |
| 113 | # define CFG_CPMFCR_RAMTYPE 0 |
| 114 | # define CFG_FCC_PSMR (FCC_PSMR_FDE|FCC_PSMR_LPB) |
| 115 | |
| 116 | #endif /* CONFIG_ETHER_INDEX */ |
| 117 | |
| 118 | |
| 119 | /* other options */ |
| 120 | #define CONFIG_HARD_I2C 1 /* To enable I2C hardware support */ |
| 121 | |
| 122 | /* system clock rate (CLKIN) - equal to the 60x and local bus speed */ |
| 123 | #ifdef DEBUG |
| 124 | #define CONFIG_8260_CLKIN 33333333 /* in Hz */ |
| 125 | #else |
| 126 | #define CONFIG_8260_CLKIN 66666666 /* in Hz */ |
| 127 | #endif |
| 128 | |
| 129 | #if defined(CONFIG_CONS_USE_EXTC) |
| 130 | #define CONFIG_BAUDRATE 115200 |
| 131 | #else |
| 132 | #define CONFIG_BAUDRATE 38400 |
| 133 | #endif |
| 134 | |
| 135 | /* default ip addresses - these will be overridden */ |
| 136 | #define CONFIG_IPADDR 192.168.1.1 /* hymod "boot" address */ |
| 137 | #define CONFIG_SERVERIP 192.168.1.254 /* hymod "server" address */ |
| 138 | |
| 139 | #define CONFIG_COMMANDS (CFG_CMD_ALL & ~( \ |
| 140 | CFG_CMD_BEDBUG | \ |
| 141 | CFG_CMD_DOC | \ |
| 142 | CFG_CMD_ELF | \ |
| 143 | CFG_CMD_FDC | \ |
| 144 | CFG_CMD_HWFLOW | \ |
| 145 | CFG_CMD_IDE | \ |
| 146 | CFG_CMD_JFFS2 | \ |
| 147 | CFG_CMD_MII | \ |
| 148 | CFG_CMD_PCMCIA | \ |
| 149 | CFG_CMD_PCI | \ |
| 150 | CFG_CMD_USB | \ |
| 151 | CFG_CMD_SCSI | \ |
| 152 | CFG_CMD_VFD | \ |
| 153 | CFG_CMD_DTT ) ) |
| 154 | |
| 155 | /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ |
| 156 | #include <cmd_confdefs.h> |
| 157 | |
| 158 | #ifdef DEBUG |
| 159 | #define CONFIG_BOOTDELAY -1 /* autoboot disabled */ |
| 160 | #endif |
| 161 | |
| 162 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) |
| 163 | #undef CONFIG_KGDB_ON_SMC /* define if kgdb on SMC */ |
| 164 | #define CONFIG_KGDB_ON_SCC /* define if kgdb on SCC */ |
| 165 | #undef CONFIG_KGDB_NONE /* define if kgdb on something else */ |
| 166 | #define CONFIG_KGDB_INDEX 2 /* which serial channel for kgdb */ |
| 167 | #define CONFIG_KGDB_USE_EXTC /* SMC/SCC use ext clock not brg_clk */ |
| 168 | #define CONFIG_KGDB_EXTC_RATE 3686400 /* serial ext clk rate in Hz */ |
| 169 | #define CONFIG_KGDB_EXTC_PINSEL 0 /* pin select 0=CLK3/CLK9,1=CLK5/CLK15*/ |
| 170 | # if defined(CONFIG_KGDB_USE_EXTC) |
| 171 | #define CONFIG_KGDB_BAUDRATE 115200 /* speed to run kgdb serial port at */ |
| 172 | # else |
| 173 | #define CONFIG_KGDB_BAUDRATE 38400 /* speed to run kgdb serial port at */ |
| 174 | # endif |
| 175 | #endif |
| 176 | |
| 177 | #undef CONFIG_WATCHDOG /* disable platform specific watchdog */ |
| 178 | |
| 179 | #define CONFIG_RTC_PCF8563 /* use Philips PCF8563 RTC */ |
| 180 | |
| 181 | /* |
| 182 | * Hymod specific configurable options |
| 183 | */ |
| 184 | #undef CFG_HYMOD_DBLEDS /* walk mezz board LEDs */ |
| 185 | |
| 186 | /* |
| 187 | * Miscellaneous configurable options |
| 188 | */ |
| 189 | #define CFG_LONGHELP /* undef to save memory */ |
| 190 | #define CFG_PROMPT "=> " /* Monitor Command Prompt */ |
| 191 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) |
| 192 | #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */ |
| 193 | #else |
| 194 | #define CFG_CBSIZE 256 /* Console I/O Buffer Size */ |
| 195 | #endif |
| 196 | #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */ |
| 197 | #define CFG_MAXARGS 16 /* max number of command args */ |
| 198 | #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */ |
| 199 | |
| 200 | #define CFG_MEMTEST_START 0x00400000 /* memtest works on */ |
| 201 | #define CFG_MEMTEST_END 0x03c00000 /* 4 ... 60 MB in DRAM */ |
| 202 | |
| 203 | #define CFG_LOAD_ADDR 0x100000 /* default load address */ |
| 204 | |
| 205 | #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */ |
| 206 | |
| 207 | #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200, 230400 } |
| 208 | |
| 209 | #define CFG_I2C_SPEED 50000 |
| 210 | #define CFG_I2C_SLAVE 0x7e |
| 211 | |
| 212 | /* these are for the ST M24C02 2kbit serial i2c eeprom */ |
| 213 | #define CFG_I2C_EEPROM_ADDR 0x50 /* base address */ |
| 214 | #define CFG_I2C_EEPROM_ADDR_LEN 1 /* bytes of address */ |
| 215 | #define CFG_I2C_RTC_ADDR 0x51 /* philips PCF8563 RTC address */ |
| 216 | |
| 217 | /* |
| 218 | * Low Level Configuration Settings |
| 219 | * (address mappings, register initial values, etc.) |
| 220 | * You should know what you are doing if you make changes here. |
| 221 | */ |
| 222 | |
| 223 | /*----------------------------------------------------------------------- |
| 224 | * Hard Reset Configuration Words |
| 225 | * |
| 226 | * if you change bits in the HRCW, you must also change the CFG_* |
| 227 | * defines for the various registers affected by the HRCW e.g. changing |
| 228 | * HRCW_DPPCxx requires you to also change CFG_SIUMCR. |
| 229 | */ |
| 230 | #ifdef DEBUG |
| 231 | #define CFG_HRCW_MASTER (HRCW_BPS11|HRCW_CIP|HRCW_L2CPC01|HRCW_DPPC10|\ |
| 232 | HRCW_ISB100|HRCW_BMS|HRCW_MMR11|HRCW_APPC10|\ |
| 233 | HRCW_MODCK_H0010) |
| 234 | #else |
| 235 | #define CFG_HRCW_MASTER (HRCW_BPS11|HRCW_CIP|HRCW_L2CPC01|HRCW_DPPC10|\ |
| 236 | HRCW_ISB100|HRCW_BMS|HRCW_MMR11|HRCW_APPC10|\ |
| 237 | HRCW_MODCK_H0101) |
| 238 | #endif |
| 239 | /* no slaves so just duplicate the master hrcw */ |
| 240 | #define CFG_HRCW_SLAVE1 CFG_HRCW_MASTER |
| 241 | #define CFG_HRCW_SLAVE2 CFG_HRCW_MASTER |
| 242 | #define CFG_HRCW_SLAVE3 CFG_HRCW_MASTER |
| 243 | #define CFG_HRCW_SLAVE4 CFG_HRCW_MASTER |
| 244 | #define CFG_HRCW_SLAVE5 CFG_HRCW_MASTER |
| 245 | #define CFG_HRCW_SLAVE6 CFG_HRCW_MASTER |
| 246 | #define CFG_HRCW_SLAVE7 CFG_HRCW_MASTER |
| 247 | |
| 248 | /*----------------------------------------------------------------------- |
| 249 | * Internal Memory Mapped Register |
| 250 | */ |
| 251 | #define CFG_IMMR 0xF0000000 |
| 252 | |
| 253 | /*----------------------------------------------------------------------- |
| 254 | * Definitions for initial stack pointer and data area (in DPRAM) |
| 255 | */ |
| 256 | #define CFG_INIT_RAM_ADDR CFG_IMMR |
| 257 | #define CFG_INIT_RAM_END 0x4000 /* End of used area in DPRAM */ |
| 258 | #define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */ |
| 259 | #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) |
| 260 | #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET |
| 261 | |
| 262 | /*----------------------------------------------------------------------- |
| 263 | * Start addresses for the final memory configuration |
| 264 | * (Set up by the startup code) |
| 265 | * Please note that CFG_SDRAM_BASE _must_ start at 0 |
| 266 | */ |
| 267 | #define CFG_SDRAM_BASE 0x00000000 |
| 268 | #define CFG_FLASH_BASE TEXT_BASE |
| 269 | #define CFG_MONITOR_BASE TEXT_BASE |
| 270 | #define CFG_FPGA_BASE 0x80000000 |
| 271 | /* |
| 272 | * unfortunately, CFG_MONITOR_LEN must include the |
| 273 | * (very large i.e. 256kB) environment flash sector |
| 274 | */ |
| 275 | #define CFG_MONITOR_LEN (512 << 10) /* Reserve 512 kB for Monitor*/ |
| 276 | #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc()*/ |
| 277 | |
| 278 | /* |
| 279 | * For booting Linux, the board info and command line data |
| 280 | * have to be in the first 8 MB of memory, since this is |
| 281 | * the maximum mapped by the Linux kernel during initialization. |
| 282 | */ |
| 283 | #define CFG_BOOTMAPSZ (8 << 20) /* Initial Mem map for Linux*/ |
| 284 | |
| 285 | /*----------------------------------------------------------------------- |
| 286 | * FLASH organization |
| 287 | */ |
| 288 | #define CFG_MAX_FLASH_BANKS 2 /* max num of memory banks */ |
| 289 | #define CFG_MAX_FLASH_SECT 67 /* max num of sects on one chip */ |
| 290 | |
| 291 | #define CFG_FLASH_ERASE_TOUT 120000 /* Flash Erase Timeout (in ms) */ |
| 292 | #define CFG_FLASH_WRITE_TOUT 500 /* Flash Write Timeout (in ms) */ |
| 293 | |
| 294 | #define CFG_FLASH_TYPE FLASH_28F640J3A |
| 295 | #define CFG_FLASH_ID (INTEL_ID_28F640J3A & 0xff) |
| 296 | #define CFG_FLASH_NBLOCKS 64 |
| 297 | |
| 298 | #define CFG_ENV_IS_IN_FLASH 1 |
| 299 | #define CFG_ENV_SIZE 0x1000 /* Total Size of Environment Sector */ |
| 300 | #define CFG_ENV_SECT_SIZE 0x40000 /* see README - env sect real size */ |
| 301 | #define CFG_ENV_ADDR (CFG_FLASH_BASE+CFG_MONITOR_LEN-CFG_ENV_SECT_SIZE) |
| 302 | |
| 303 | /*----------------------------------------------------------------------- |
| 304 | * Cache Configuration |
| 305 | */ |
| 306 | #define CFG_CACHELINE_SIZE 32 /* For MPC8260 CPU */ |
| 307 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) |
| 308 | #define CFG_CACHELINE_SHIFT 5 /* log base 2 of the above value*/ |
| 309 | #endif |
| 310 | |
| 311 | /*----------------------------------------------------------------------- |
| 312 | * HIDx - Hardware Implementation-dependent Registers 2-11 |
| 313 | *----------------------------------------------------------------------- |
| 314 | * HID0 also contains cache control - initially enable both caches and |
| 315 | * invalidate contents, then the final state leaves only the instruction |
| 316 | * cache enabled. Note that Power-On and Hard reset invalidate the caches, |
| 317 | * but Soft reset does not. |
| 318 | * |
| 319 | * HID1 has only read-only information - nothing to set. |
| 320 | */ |
| 321 | #define CFG_HID0_INIT (HID0_ICE|HID0_DCE|HID0_ICFI|HID0_DCI|\ |
| 322 | HID0_IFEM|HID0_ABE) |
| 323 | #ifdef DEBUG |
| 324 | #define CFG_HID0_FINAL 0 |
| 325 | #else |
| 326 | #define CFG_HID0_FINAL (HID0_ICE|HID0_IFEM|HID0_ABE) |
| 327 | #endif |
| 328 | #define CFG_HID2 0 |
| 329 | |
| 330 | /*----------------------------------------------------------------------- |
| 331 | * RMR - Reset Mode Register 5-5 |
| 332 | *----------------------------------------------------------------------- |
| 333 | * turn on Checkstop Reset Enable |
| 334 | */ |
| 335 | #ifdef DEBUG |
| 336 | #define CFG_RMR 0 |
| 337 | #else |
| 338 | #define CFG_RMR RMR_CSRE |
| 339 | #endif |
| 340 | |
| 341 | /*----------------------------------------------------------------------- |
| 342 | * BCR - Bus Configuration 4-25 |
| 343 | *----------------------------------------------------------------------- |
| 344 | */ |
| 345 | #define CFG_BCR (BCR_ETM) |
| 346 | |
| 347 | /*----------------------------------------------------------------------- |
| 348 | * SIUMCR - SIU Module Configuration 4-31 |
| 349 | *----------------------------------------------------------------------- |
| 350 | */ |
| 351 | #define CFG_SIUMCR (SIUMCR_DPPC10|SIUMCR_L2CPC01|\ |
| 352 | SIUMCR_APPC10|SIUMCR_MMR11) |
| 353 | |
| 354 | /*----------------------------------------------------------------------- |
| 355 | * SYPCR - System Protection Control 4-35 |
| 356 | * SYPCR can only be written once after reset! |
| 357 | *----------------------------------------------------------------------- |
| 358 | * Watchdog & Bus Monitor Timer max, 60x & Local Bus Monitor enable |
| 359 | */ |
| 360 | #if defined(CONFIG_WATCHDOG) |
| 361 | #define CFG_SYPCR (SYPCR_SWTC|SYPCR_BMT|SYPCR_PBME|SYPCR_LBME|\ |
| 362 | SYPCR_SWRI|SYPCR_SWP|SYPCR_SWE) |
| 363 | #else |
| 364 | #define CFG_SYPCR (SYPCR_SWTC|SYPCR_BMT|SYPCR_PBME|SYPCR_LBME|\ |
| 365 | SYPCR_SWRI|SYPCR_SWP) |
| 366 | #endif /* CONFIG_WATCHDOG */ |
| 367 | |
| 368 | /*----------------------------------------------------------------------- |
| 369 | * TMCNTSC - Time Counter Status and Control 4-40 |
| 370 | *----------------------------------------------------------------------- |
| 371 | * Clear once per Second and Alarm Interrupt Status, Set 32KHz timersclk, |
| 372 | * and enable Time Counter |
| 373 | */ |
| 374 | #define CFG_TMCNTSC (TMCNTSC_SEC|TMCNTSC_ALR|TMCNTSC_TCF|TMCNTSC_TCE) |
| 375 | |
| 376 | /*----------------------------------------------------------------------- |
| 377 | * PISCR - Periodic Interrupt Status and Control 4-42 |
| 378 | *----------------------------------------------------------------------- |
| 379 | * Clear Periodic Interrupt Status, Set 32KHz timersclk, and enable |
| 380 | * Periodic timer |
| 381 | */ |
| 382 | #define CFG_PISCR (PISCR_PS|PISCR_PTF|PISCR_PTE) |
| 383 | |
| 384 | /*----------------------------------------------------------------------- |
| 385 | * SCCR - System Clock Control 9-8 |
| 386 | *----------------------------------------------------------------------- |
| 387 | * Ensure DFBRG is Divide by 16 |
| 388 | */ |
| 389 | #define CFG_SCCR (SCCR_DFBRG01) |
| 390 | |
| 391 | /*----------------------------------------------------------------------- |
| 392 | * RCCR - RISC Controller Configuration 13-7 |
| 393 | *----------------------------------------------------------------------- |
| 394 | */ |
| 395 | #define CFG_RCCR 0 |
| 396 | |
| 397 | /* |
| 398 | * Init Memory Controller: |
| 399 | * |
| 400 | * Bank Bus Machine PortSz Device |
| 401 | * ---- --- ------- ------ ------ |
| 402 | * 0 60x GPCM 32 bit FLASH |
| 403 | * 1 60x GPCM 32 bit FLASH (same as 0 - unused for now) |
| 404 | * 2 60x SDRAM 64 bit SDRAM |
| 405 | * 3 Local UPMC 8 bit Main Xilinx configuration |
| 406 | * 4 Local GPCM 32 bit Main Xilinx register mode |
| 407 | * 5 Local UPMB 32 bit Main Xilinx port mode |
| 408 | * 6 Local UPMC 8 bit Mezz Xilinx configuration |
| 409 | */ |
| 410 | |
| 411 | /* |
| 412 | * Bank 0 - FLASH |
| 413 | * |
| 414 | * Quotes from the HYMOD IO Board Reference manual: |
| 415 | * |
| 416 | * "The flash memory is two Intel StrataFlash chips, each configured for |
| 417 | * 16 bit operation and connected to give a 32 bit wide port." |
| 418 | * |
| 419 | * "The chip select logic is configured to respond to both *CS0 and *CS1. |
| 420 | * Therefore the FLASH memory will be mapped to both bank 0 and bank 1. |
| 421 | * It is suggested that bank 0 be read-only and bank 1 be read/write. The |
| 422 | * FLASH will then appear as ROM during boot." |
| 423 | * |
| 424 | * Initially, we are only going to use bank 0 in read/write mode. |
| 425 | */ |
| 426 | |
| 427 | /* 32 bit, read-write, GPCM on 60x bus */ |
| 428 | #define CFG_BR0_PRELIM ((CFG_FLASH_BASE&BRx_BA_MSK)|\ |
| 429 | BRx_PS_32|BRx_MS_GPCM_P|BRx_V) |
| 430 | /* up to 32 Mb */ |
| 431 | #define CFG_OR0_PRELIM (MEG_TO_AM(32)|ORxG_CSNT|ORxG_ACS_DIV2|ORxG_SCY_10_CLK) |
| 432 | |
| 433 | /* |
| 434 | * Bank 2 - SDRAM |
| 435 | * |
| 436 | * Quotes from the HYMOD IO Board Reference manual: |
| 437 | * |
| 438 | * "The main memory is implemented using TC59SM716FTL-10 SDRAM and has a |
| 439 | * fixed size of 64 Mbytes. The Toshiba TC59SM716FTL-10 is a CMOS synchronous |
| 440 | * dynamic random access memory organised as 4 banks by 4096 rows by 512 |
| 441 | * columns by 16 bits. Four chips provide a 64-bit port on the 60x bus." |
| 442 | * |
| 443 | * "The locations in SDRAM are accessed using multiplexed address pins to |
| 444 | * specify row and column. The pins also act to specify commands. The state |
| 445 | * of the inputs *RAS, *CAS and *WE defines the required action. The a10/AP |
| 446 | * pin may function as a row address or as the AUTO PRECHARGE control line, |
| 447 | * depending on the cycle type. The 60x bus SDRAM machine allows the MPC8260 |
| 448 | * address lines to be configured to the required multiplexing scheme." |
| 449 | */ |
| 450 | |
| 451 | #define CFG_SDRAM_SIZE 64 |
| 452 | |
| 453 | /* 64 bit, read-write, SDRAM on 60x bus */ |
| 454 | #define CFG_BR2_PRELIM ((CFG_SDRAM_BASE&BRx_BA_MSK)|\ |
| 455 | BRx_PS_64|BRx_MS_SDRAM_P|BRx_V) |
| 456 | /* 64 Mb, 4 int banks per dev, row start addr bit = A6, 12 row addr lines */ |
| 457 | #define CFG_OR2_PRELIM (MEG_TO_AM(CFG_SDRAM_SIZE)|\ |
| 458 | ORxS_BPD_4|ORxS_ROWST_PBI1_A6|ORxS_NUMR_12) |
| 459 | |
| 460 | /* |
| 461 | * The 60x Bus SDRAM Mode Register (PDSMR) is set as follows: |
| 462 | * |
| 463 | * Page Based Interleaving, Refresh Enable, Address Multiplexing where A5 |
| 464 | * is output on A16 pin (A6 on A17, and so on), use address pins A14-A16 |
| 465 | * as bank select, A7 is output on SDA10 during an ACTIVATE command, |
| 466 | * earliest timing for ACTIVATE command after REFRESH command is 6 clocks, |
| 467 | * earliest timing for ACTIVATE or REFRESH command after PRECHARGE command |
| 468 | * is 2 clocks, earliest timing for READ/WRITE command after ACTIVATE |
| 469 | * command is 2 clocks, earliest timing for PRECHARGE after last data |
| 470 | * was read is 1 clock, earliest timing for PRECHARGE after last data |
| 471 | * was written is 1 clock, CAS Latency is 2. |
| 472 | */ |
| 473 | |
| 474 | #define CFG_PSDMR (PSDMR_PBI|PSDMR_SDAM_A16_IS_A5|\ |
| 475 | PSDMR_BSMA_A14_A16|PSDMR_SDA10_PBI1_A7|\ |
| 476 | PSDMR_RFRC_6_CLK|PSDMR_PRETOACT_2W|\ |
| 477 | PSDMR_ACTTORW_2W|PSDMR_LDOTOPRE_1C|\ |
| 478 | PSDMR_WRC_1C|PSDMR_CL_2) |
| 479 | |
| 480 | /* |
| 481 | * The 60x bus-assigned SDRAM Refresh Timer (PSRT) (10-31) and the Refresh |
| 482 | * Timers Prescale (PTP) value in the Memory Refresh Timer Prescaler Register |
| 483 | * (MPTPR) (10-32) must also be set up (it used to be called the Periodic Timer |
| 484 | * Prescaler, hence the P instead of the R). The refresh timer period is given |
| 485 | * by (note that there was a change in the 8260 UM Errata): |
| 486 | * |
| 487 | * TimerPeriod = (PSRT + 1) / Fmptc |
| 488 | * |
| 489 | * where Fmptc is the BusClock divided by PTP. i.e. |
| 490 | * |
| 491 | * TimerPeriod = (PSRT + 1) / (BusClock / PTP) |
| 492 | * |
| 493 | * or |
| 494 | * |
| 495 | * TImerPeriod = (PTP * (PSRT + 1)) / BusClock |
| 496 | * |
| 497 | * The requirement for the Toshiba TC59SM716FTL-10 is that there must be |
| 498 | * 4K refresh cycles every 64 ms. i.e. one refresh cycle every 64000/4096 |
| 499 | * = 15.625 usecs. |
| 500 | * |
| 501 | * So PTP * (PSRT + 1) <= 15.625 * BusClock. At 66.666MHz, PSRT=31 and PTP=32 |
| 502 | * appear to be reasonable. |
| 503 | */ |
| 504 | |
| 505 | #ifdef DEBUG |
| 506 | #define CFG_PSRT 39 |
| 507 | #define CFG_MPTPR MPTPR_PTP_DIV8 |
| 508 | #else |
| 509 | #define CFG_PSRT 31 |
| 510 | #define CFG_MPTPR MPTPR_PTP_DIV32 |
| 511 | #endif |
| 512 | |
| 513 | /* |
| 514 | * Banks 3,4,5 and 6 - FPGA access |
| 515 | * |
| 516 | * Quotes from the HYMOD IO Board Reference manual: |
| 517 | * |
| 518 | * "The IO Board is fitted with a Xilinx XCV300E main FPGA. Provision is made |
| 519 | * for configuring an optional FPGA on the mezzanine interface. |
| 520 | * |
| 521 | * Access to the FPGAs may be divided into several catagories: |
| 522 | * |
| 523 | * 1. Configuration |
| 524 | * 2. Register mode access |
| 525 | * 3. Port mode access |
| 526 | * |
| 527 | * The main FPGA is supported for modes 1, 2 and 3. The mezzanine FPGA can be |
| 528 | * configured only (mode 1). Consequently there are four access types. |
| 529 | * |
| 530 | * To improve interface performance and simplify software design, the four |
| 531 | * possible access types are separately mapped to different memory banks. |
| 532 | * |
| 533 | * All are accessed using the local bus." |
| 534 | * |
| 535 | * Device Mode Memory Bank Machine Port Size Access |
| 536 | * |
| 537 | * Main Configuration 3 UPMC 8bit R/W |
| 538 | * Main Register 4 GPCM 32bit R/W |
| 539 | * Main Port 5 UPMB 32bit R/W |
| 540 | * Mezzanine Configuration 6 UPMC 8bit W/O |
| 541 | * |
| 542 | * "Note that mezzanine mode 1 access is write-only." |
| 543 | */ |
| 544 | |
| 545 | /* all the bank sizes must be a power of two, greater or equal to 32768 */ |
| 546 | #define FPGA_MAIN_CFG_BASE (CFG_FPGA_BASE) |
| 547 | #define FPGA_MAIN_CFG_SIZE 32768 |
| 548 | #define FPGA_MAIN_REG_BASE (FPGA_MAIN_CFG_BASE + FPGA_MAIN_CFG_SIZE) |
| 549 | #define FPGA_MAIN_REG_SIZE 32768 |
| 550 | #define FPGA_MAIN_PORT_BASE (FPGA_MAIN_REG_BASE + FPGA_MAIN_REG_SIZE) |
| 551 | #define FPGA_MAIN_PORT_SIZE 32768 |
| 552 | #define FPGA_MEZZ_CFG_BASE (FPGA_MAIN_PORT_BASE + FPGA_MAIN_PORT_SIZE) |
| 553 | #define FPGA_MEZZ_CFG_SIZE 32768 |
| 554 | |
| 555 | /* 8 bit, read-write, UPMC */ |
| 556 | #define CFG_BR3_PRELIM (FPGA_MAIN_CFG_BASE|BRx_PS_8|BRx_MS_UPMC|BRx_V) |
| 557 | /* up to 32Kbyte, burst inhibit */ |
| 558 | #define CFG_OR3_PRELIM (P2SZ_TO_AM(FPGA_MAIN_CFG_SIZE)|ORxU_BI) |
| 559 | |
| 560 | /* 32 bit, read-write, GPCM */ |
| 561 | #define CFG_BR4_PRELIM (FPGA_MAIN_REG_BASE|BRx_PS_32|BRx_MS_GPCM_L|BRx_V) |
| 562 | /* up to 32Kbyte */ |
| 563 | #define CFG_OR4_PRELIM (P2SZ_TO_AM(FPGA_MAIN_REG_SIZE)) |
| 564 | |
| 565 | /* 32 bit, read-write, UPMB */ |
| 566 | #define CFG_BR5_PRELIM (FPGA_MAIN_PORT_BASE|BRx_PS_32|BRx_MS_UPMB|BRx_V) |
| 567 | /* up to 32Kbyte */ |
| 568 | #define CFG_OR5_PRELIM (P2SZ_TO_AM(FPGA_MAIN_PORT_SIZE)|ORxU_BI) |
| 569 | |
| 570 | /* 8 bit, write-only, UPMC */ |
| 571 | #define CFG_BR6_PRELIM (FPGA_MEZZ_CFG_BASE|BRx_PS_8|BRx_MS_UPMC|BRx_V) |
| 572 | /* up to 32Kbyte, burst inhibit */ |
| 573 | #define CFG_OR6_PRELIM (P2SZ_TO_AM(FPGA_MEZZ_CFG_SIZE)|ORxU_BI) |
| 574 | |
| 575 | /*----------------------------------------------------------------------- |
| 576 | * MBMR - Machine B Mode 10-27 |
| 577 | *----------------------------------------------------------------------- |
| 578 | */ |
| 579 | #define CFG_MBMR (MxMR_BSEL|MxMR_OP_NORM) /* XXX - needs more */ |
| 580 | |
| 581 | /*----------------------------------------------------------------------- |
| 582 | * MCMR - Machine C Mode 10-27 |
| 583 | *----------------------------------------------------------------------- |
| 584 | */ |
| 585 | #define CFG_MCMR (MxMR_BSEL|MxMR_DSx_2_CYCL) /* XXX - needs more */ |
| 586 | |
| 587 | /* |
| 588 | * FPGA I/O Port/Bit information |
| 589 | */ |
| 590 | |
| 591 | #define FPGA_MAIN_PROG_PORT IOPIN_PORTA |
| 592 | #define FPGA_MAIN_PROG_PIN 4 /* PA4 */ |
| 593 | #define FPGA_MAIN_INIT_PORT IOPIN_PORTA |
| 594 | #define FPGA_MAIN_INIT_PIN 5 /* PA5 */ |
| 595 | #define FPGA_MAIN_DONE_PORT IOPIN_PORTA |
| 596 | #define FPGA_MAIN_DONE_PIN 6 /* PA6 */ |
| 597 | |
| 598 | #define FPGA_MEZZ_PROG_PORT IOPIN_PORTA |
| 599 | #define FPGA_MEZZ_PROG_PIN 0 /* PA0 */ |
| 600 | #define FPGA_MEZZ_INIT_PORT IOPIN_PORTA |
| 601 | #define FPGA_MEZZ_INIT_PIN 1 /* PA1 */ |
| 602 | #define FPGA_MEZZ_DONE_PORT IOPIN_PORTA |
| 603 | #define FPGA_MEZZ_DONE_PIN 2 /* PA2 */ |
| 604 | #define FPGA_MEZZ_ENABLE_PORT IOPIN_PORTA |
| 605 | #define FPGA_MEZZ_ENABLE_PIN 3 /* PA3 */ |
| 606 | |
| 607 | /* |
| 608 | * Internal Definitions |
| 609 | * |
| 610 | * Boot Flags |
| 611 | */ |
| 612 | #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH*/ |
| 613 | #define BOOTFLAG_WARM 0x02 /* Software reboot */ |
| 614 | |
| 615 | #endif /* __CONFIG_H */ |