wdenk | ef5fe75 | 2003-03-12 10:41:04 +0000 | [diff] [blame] | 1 | /* |
| 2 | **===================================================================== |
| 3 | ** |
| 4 | ** Copyright (C) 2000, 2001, 2002, 2003 |
| 5 | ** The LEOX team <team@leox.org>, http://www.leox.org |
| 6 | ** |
| 7 | ** LEOX.org is about the development of free hardware and software resources |
| 8 | ** for system on chip. |
| 9 | ** |
| 10 | ** Description: U-Boot port on the LEOX's ELPT860 CPU board |
| 11 | ** ~~~~~~~~~~~ |
| 12 | ** |
| 13 | **===================================================================== |
| 14 | ** |
| 15 | ** This program is free software; you can redistribute it and/or |
| 16 | ** modify it under the terms of the GNU General Public License as |
| 17 | ** published by the Free Software Foundation; either version 2 of |
| 18 | ** the License, or (at your option) any later version. |
| 19 | ** |
| 20 | ** This program is distributed in the hope that it will be useful, |
| 21 | ** but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 23 | ** GNU General Public License for more details. |
| 24 | ** |
| 25 | ** You should have received a copy of the GNU General Public License |
| 26 | ** along with this program; if not, write to the Free Software |
| 27 | ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 28 | ** MA 02111-1307 USA |
| 29 | ** |
| 30 | **===================================================================== |
| 31 | */ |
| 32 | |
| 33 | /* |
| 34 | * board/config.h - configuration options, board specific |
| 35 | */ |
| 36 | |
| 37 | #ifndef __CONFIG_H |
| 38 | #define __CONFIG_H |
| 39 | |
| 40 | |
| 41 | /* |
| 42 | * High Level Configuration Options |
| 43 | * (easy to change) |
| 44 | */ |
| 45 | |
| 46 | #define CONFIG_MPC860 1 /* It's a MPC860, in fact a 860T CPU */ |
| 47 | #define CONFIG_MPC860T 1 |
| 48 | #define CONFIG_ELPT860 1 /* ...on a LEOX's ELPT860 CPU board */ |
| 49 | |
| 50 | #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */ |
| 51 | #undef CONFIG_8xx_CONS_SMC2 |
| 52 | #undef CONFIG_8xx_CONS_NONE |
| 53 | |
| 54 | #define CONFIG_CLOCKS_IN_MHZ 1 /* Clock passed to Linux (<2.4.5) in MHz */ |
| 55 | #define CONFIG_8xx_GCLK_FREQ 50000000 /* MPC860T runs at 50MHz */ |
| 56 | |
| 57 | #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */ |
| 58 | |
| 59 | #define CONFIG_BOARD_PRE_INIT 1 /* Call board_pre_init */ |
| 60 | |
| 61 | /* BOOT arguments */ |
| 62 | #define CONFIG_PREBOOT \ |
| 63 | "echo;" \ |
| 64 | "echo Type \"run nfsboot\" to mount root filesystem over NFS;" \ |
| 65 | "echo" |
| 66 | |
| 67 | #undef CONFIG_BOOTARGS |
| 68 | |
| 69 | #define CONFIG_EXTRA_ENV_SETTINGS \ |
| 70 | "ramargs=setenv bootargs root=/dev/ram rw\0" \ |
| 71 | "rootargs=setenv rootpath /tftp/$(ipaddr)\0" \ |
| 72 | "nfsargs=setenv bootargs root=/dev/nfs rw " \ |
| 73 | "nfsroot=$(serverip):$(rootpath)\0" \ |
| 74 | "addip=setenv bootargs $(bootargs) " \ |
| 75 | "ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask)" \ |
| 76 | ":$(hostname):eth0:off panic=1\0" \ |
| 77 | "ramboot=tftp 400000 /home/paugaml/pMulti;" \ |
| 78 | "run ramargs;bootm\0" \ |
| 79 | "nfsboot=tftp 400000 /home/paugaml/uImage;" \ |
| 80 | "run rootargs;run nfsargs;run addip;bootm\0" \ |
| 81 | "" |
| 82 | #define CONFIG_BOOTCOMMAND "run ramboot" |
| 83 | |
| 84 | #define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE) |
| 85 | |
| 86 | #undef CONFIG_WATCHDOG /* watchdog disabled */ |
| 87 | #undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */ |
| 88 | #undef CONFIG_RTC_MPC8xx /* internal RTC MPC8xx unused */ |
| 89 | #define CONFIG_RTC_DS164x 1 /* RTC is a Dallas DS1646 */ |
| 90 | |
| 91 | #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */ |
| 92 | #undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */ |
| 93 | |
| 94 | #define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \ |
| 95 | CFG_CMD_ASKENV | \ |
| 96 | CFG_CMD_DATE ) |
| 97 | |
| 98 | /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ |
| 99 | #include <cmd_confdefs.h> |
| 100 | |
| 101 | /* |
| 102 | * Miscellaneous configurable options |
| 103 | */ |
| 104 | #define CFG_LONGHELP /* undef to save memory */ |
| 105 | #define CFG_PROMPT "LEOX_elpt860: " /* Monitor Command Prompt */ |
| 106 | |
| 107 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) |
| 108 | # define CFG_CBSIZE 1024 /* Console I/O Buffer Size */ |
| 109 | #else |
| 110 | # define CFG_CBSIZE 256 /* Console I/O Buffer Size */ |
| 111 | #endif |
| 112 | |
| 113 | #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */ |
| 114 | #define CFG_MAXARGS 16 /* max number of command args */ |
| 115 | #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */ |
| 116 | |
| 117 | #define CFG_MEMTEST_START 0x00400000 /* memtest works on */ |
| 118 | #define CFG_MEMTEST_END 0x00C00000 /* 4 ... 12 MB in DRAM */ |
| 119 | |
| 120 | #define CFG_LOAD_ADDR 0x00100000 /* default load address */ |
| 121 | |
| 122 | #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */ |
| 123 | |
| 124 | /* |
| 125 | * Environment Variables and Storages |
| 126 | */ |
| 127 | #define CONFIG_ENV_OVERWRITE 1 /* Allow Overwrite of serial# & ethaddr */ |
| 128 | |
| 129 | #undef CFG_ENV_IS_IN_NVRAM /* Environment is in NVRAM */ |
| 130 | #undef CFG_ENV_IS_IN_EEPROM /* Environment is in I2C EEPROM */ |
| 131 | #define CFG_ENV_IS_IN_FLASH 1 /* Environment is in FLASH */ |
| 132 | |
| 133 | #define CONFIG_BAUDRATE 9600 /* console baudrate = 9600 bps */ |
| 134 | #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } |
| 135 | |
| 136 | #define CONFIG_ETHADDR 00:01:77:00:60:40 |
| 137 | #define CONFIG_IPADDR 192.168.0.30 |
| 138 | #define CONFIG_NETMASK 255.255.255.0 |
| 139 | |
| 140 | #define CONFIG_SERVERIP 192.168.0.1 |
| 141 | #define CONFIG_GATEWAYIP 192.168.0.1 |
| 142 | |
| 143 | /* |
| 144 | * Low Level Configuration Settings |
| 145 | * (address mappings, register initial values, etc.) |
| 146 | * You should know what you are doing if you make changes here. |
| 147 | */ |
| 148 | |
| 149 | /*----------------------------------------------------------------------- |
| 150 | * Internal Memory Mapped Register |
| 151 | */ |
| 152 | #define CFG_IMMR 0xFF000000 |
| 153 | |
| 154 | /*----------------------------------------------------------------------- |
| 155 | * Definitions for initial stack pointer and data area (in DPRAM) |
| 156 | */ |
| 157 | #define CFG_INIT_RAM_ADDR CFG_IMMR |
| 158 | #define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */ |
| 159 | #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */ |
| 160 | #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) |
| 161 | #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET |
| 162 | |
| 163 | /*----------------------------------------------------------------------- |
| 164 | * Start addresses for the final memory configuration |
| 165 | * (Set up by the startup code) |
| 166 | * Please note that CFG_SDRAM_BASE _must_ start at 0 |
| 167 | */ |
| 168 | #define CFG_SDRAM_BASE 0x00000000 |
| 169 | #define CFG_FLASH_BASE 0x02000000 |
| 170 | #define CFG_NVRAM_BASE 0x03000000 |
| 171 | |
| 172 | #if defined(CFG_ENV_IS_IN_FLASH) |
| 173 | # if defined(DEBUG) |
| 174 | # define CFG_MONITOR_LEN (320 << 10) /* Reserve 320 kB for Monitor */ |
| 175 | # else |
| 176 | # define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */ |
| 177 | # endif |
| 178 | #else |
| 179 | # if defined(DEBUG) |
| 180 | # define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */ |
| 181 | # else |
| 182 | # define CFG_MONITOR_LEN (192 << 10) /* Reserve 192 kB for Monitor */ |
| 183 | # endif |
| 184 | #endif |
| 185 | |
| 186 | #define CFG_MONITOR_BASE CFG_FLASH_BASE |
| 187 | #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */ |
| 188 | |
| 189 | /* |
| 190 | * For booting Linux, the board info and command line data |
| 191 | * have to be in the first 8 MB of memory, since this is |
| 192 | * the maximum mapped by the Linux kernel during initialization. |
| 193 | */ |
| 194 | #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */ |
| 195 | |
| 196 | /*----------------------------------------------------------------------- |
| 197 | * FLASH organization |
| 198 | */ |
| 199 | #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */ |
| 200 | #define CFG_MAX_FLASH_SECT 8 /* max number of sectors on one chip */ |
| 201 | |
| 202 | #define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */ |
| 203 | #define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */ |
| 204 | |
| 205 | #if defined(CFG_ENV_IS_IN_FLASH) |
| 206 | # define CFG_ENV_OFFSET 0x10000 /* Offset of Environment Sector */ |
| 207 | # define CFG_ENV_SIZE 0x10000 /* Total Size of Environment Sector */ |
| 208 | #endif |
| 209 | |
| 210 | /*----------------------------------------------------------------------- |
| 211 | * NVRAM organization |
| 212 | */ |
| 213 | #define CFG_NVRAM_BASE_ADDR CFG_NVRAM_BASE /* Base address of NVRAM area */ |
| 214 | #define CFG_NVRAM_SIZE ((128*1024)-8) /* clock regs resident in the */ |
| 215 | /* 8 top NVRAM locations */ |
| 216 | |
| 217 | #if defined(CFG_ENV_IS_IN_NVRAM) |
| 218 | # define CFG_ENV_ADDR CFG_NVRAM_BASE /* Base address of NVRAM area */ |
| 219 | # define CFG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */ |
| 220 | #endif |
| 221 | |
| 222 | /*----------------------------------------------------------------------- |
| 223 | * Cache Configuration |
| 224 | */ |
| 225 | #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */ |
| 226 | |
| 227 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) |
| 228 | # define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */ |
| 229 | #endif |
| 230 | |
| 231 | /*----------------------------------------------------------------------- |
| 232 | * SYPCR - System Protection Control 11-9 |
| 233 | * SYPCR can only be written once after reset! |
| 234 | *----------------------------------------------------------------------- |
| 235 | * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze |
| 236 | */ |
| 237 | #if defined(CONFIG_WATCHDOG) |
| 238 | # define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \ |
| 239 | SYPCR_SWE | SYPCR_SWRI | SYPCR_SWP) |
| 240 | #else |
| 241 | # define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \ |
| 242 | SYPCR_SWP) |
| 243 | #endif |
| 244 | |
| 245 | /*----------------------------------------------------------------------- |
| 246 | * SUMCR - SIU Module Configuration 11-6 |
| 247 | *----------------------------------------------------------------------- |
| 248 | * PCMCIA config., multi-function pin tri-state |
| 249 | */ |
| 250 | #define CFG_SIUMCR (SIUMCR_DBGC11) |
| 251 | |
| 252 | /*----------------------------------------------------------------------- |
| 253 | * TBSCR - Time Base Status and Control 11-26 |
| 254 | *----------------------------------------------------------------------- |
| 255 | * Clear Reference Interrupt Status, Timebase freezing enabled |
| 256 | */ |
| 257 | #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF) |
| 258 | |
| 259 | /*----------------------------------------------------------------------- |
| 260 | * RTCSC - Real-Time Clock Status and Control Register 11-27 |
| 261 | *----------------------------------------------------------------------- |
| 262 | * Once-per-Second Interrupt, Alarm Interrupt, RTC freezing enabled, RTC |
| 263 | * enabled |
| 264 | */ |
| 265 | #define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE) |
| 266 | |
| 267 | /*----------------------------------------------------------------------- |
| 268 | * PISCR - Periodic Interrupt Status and Control 11-31 |
| 269 | *----------------------------------------------------------------------- |
| 270 | * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled |
| 271 | */ |
| 272 | #define CFG_PISCR (PISCR_PS | PISCR_PITF) |
| 273 | |
| 274 | /*----------------------------------------------------------------------- |
| 275 | * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30 |
| 276 | *----------------------------------------------------------------------- |
| 277 | * Reset PLL lock status sticky bit, timer expired status bit and timer |
| 278 | * interrupt status bit - leave PLL multiplication factor unchanged ! |
| 279 | */ |
| 280 | #define CFG_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST) |
| 281 | |
| 282 | /*----------------------------------------------------------------------- |
| 283 | * SCCR - System Clock and reset Control Register 15-27 |
| 284 | *----------------------------------------------------------------------- |
| 285 | * Set clock output, timebase and RTC source and divider, |
| 286 | * power management and some other internal clocks |
| 287 | */ |
| 288 | #define SCCR_MASK SCCR_EBDF11 |
| 289 | #define CFG_SCCR (SCCR_TBS | \ |
| 290 | SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \ |
| 291 | SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \ |
| 292 | SCCR_DFALCD00) |
| 293 | |
| 294 | /*----------------------------------------------------------------------- |
| 295 | * Chip Selects + SDRAM timings + Memory Periodic Timer Prescaler |
| 296 | *----------------------------------------------------------------------- |
| 297 | * |
| 298 | */ |
| 299 | #ifdef DEBUG |
| 300 | # define CFG_DER 0xFFE7400F /* Debug Enable Register */ |
| 301 | #else |
| 302 | # define CFG_DER 0 |
| 303 | #endif |
| 304 | |
| 305 | /* |
| 306 | * Init Memory Controller: |
| 307 | * ~~~~~~~~~~~~~~~~~~~~~~ |
| 308 | * |
| 309 | * BR0 and OR0 (FLASH) |
| 310 | */ |
| 311 | |
| 312 | #define FLASH_BASE0_PRELIM CFG_FLASH_BASE /* FLASH bank #0 */ |
| 313 | |
| 314 | /* used to re-map FLASH both when starting from SRAM or FLASH: |
| 315 | * restrict access enough to keep SRAM working (if any) |
| 316 | * but not too much to meddle with FLASH accesses |
| 317 | */ |
| 318 | #define CFG_PRELIM_OR_AM 0xFF000000 /* 16 MB between each CSx */ |
| 319 | |
| 320 | /* FLASH timing: ACS = 11, TRLX = 0, CSNT = 0, SCY = 8, EHTR = 0 */ |
| 321 | #define CFG_OR_TIMING_FLASH (OR_ACS_DIV2 | OR_BI | OR_SCY_8_CLK) |
| 322 | |
| 323 | #define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH) |
| 324 | #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_8 | BR_V ) |
| 325 | |
| 326 | /* |
| 327 | * BR1 and OR1 (SDRAM) |
| 328 | * |
| 329 | */ |
| 330 | #define SDRAM_BASE1_PRELIM CFG_SDRAM_BASE /* SDRAM bank #0 */ |
| 331 | #define SDRAM_MAX_SIZE 0x02000000 /* 32 MB MAX for CS1 */ |
| 332 | |
| 333 | /* SDRAM timing: */ |
| 334 | #define CFG_OR_TIMING_SDRAM 0x00000000 |
| 335 | |
| 336 | #define CFG_OR1_PRELIM ((2 * CFG_PRELIM_OR_AM) | CFG_OR_TIMING_SDRAM ) |
| 337 | #define CFG_BR1_PRELIM ((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) |
| 338 | |
| 339 | /* |
| 340 | * BR2 and OR2 (NVRAM) |
| 341 | * |
| 342 | */ |
| 343 | #define NVRAM_BASE1_PRELIM CFG_NVRAM_BASE /* NVRAM bank #0 */ |
| 344 | #define NVRAM_MAX_SIZE 0x00020000 /* 128 KB MAX for CS2 */ |
| 345 | |
| 346 | #define CFG_OR2_PRELIM 0xFFF80160 |
| 347 | #define CFG_BR2_PRELIM ((NVRAM_BASE1_PRELIM & BR_BA_MSK) | BR_PS_8 | BR_V ) |
| 348 | |
| 349 | /* |
| 350 | * Memory Periodic Timer Prescaler |
| 351 | */ |
| 352 | |
| 353 | /* periodic timer for refresh */ |
| 354 | #define CFG_MAMR_PTA 97 /* start with divider for 100 MHz */ |
| 355 | |
| 356 | /* refresh rate 15.6 us (= 64 ms / 4K = 62.4 / quad bursts) for <= 128 MBit */ |
| 357 | #define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */ |
| 358 | #define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */ |
| 359 | |
| 360 | /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */ |
| 361 | #define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */ |
| 362 | #define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */ |
| 363 | |
| 364 | /* |
| 365 | * MAMR settings for SDRAM |
| 366 | */ |
| 367 | |
| 368 | /* 8 column SDRAM */ |
| 369 | #define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ |
| 370 | MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \ |
| 371 | MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) |
| 372 | /* 9 column SDRAM */ |
| 373 | #define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ |
| 374 | MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \ |
| 375 | MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) |
| 376 | |
| 377 | /*----------------------------------------------------------------------- |
| 378 | * Internal Definitions |
| 379 | *----------------------------------------------------------------------- |
| 380 | * |
| 381 | */ |
| 382 | |
| 383 | /* |
| 384 | * Boot Flags |
| 385 | */ |
| 386 | #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */ |
| 387 | #define BOOTFLAG_WARM 0x02 /* Software reboot */ |
| 388 | |
| 389 | |
| 390 | #endif /* __CONFIG_H */ |