1 /* 2 * (C) Copyright 2000-2008 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_MPC855 1 /* This is a MPC855 CPU */ 37 #define CONFIG_TQM855M 1 /* ...on a TQM8xxM module */ 38 39 #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */ 40 #define CONFIG_SYS_SMC_RXBUFLEN 128 41 #define CONFIG_SYS_MAXIDLE 10 42 #define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */ 43 44 #define CONFIG_BOOTCOUNT_LIMIT 45 46 #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */ 47 48 #define CONFIG_BOARD_TYPES 1 /* support board types */ 49 50 #define CONFIG_PREBOOT "echo;" \ 51 "echo Type \\\"run flash_nfs\\\" to mount root filesystem over NFS;" \ 52 "echo" 53 54 #undef CONFIG_BOOTARGS 55 56 #define CONFIG_EXTRA_ENV_SETTINGS \ 57 "netdev=eth0\0" \ 58 "nfsargs=setenv bootargs root=/dev/nfs rw " \ 59 "nfsroot=${serverip}:${rootpath}\0" \ 60 "ramargs=setenv bootargs root=/dev/ram rw\0" \ 61 "addip=setenv bootargs ${bootargs} " \ 62 "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \ 63 ":${hostname}:${netdev}:off panic=1\0" \ 64 "flash_nfs=run nfsargs addip;" \ 65 "bootm ${kernel_addr}\0" \ 66 "flash_self=run ramargs addip;" \ 67 "bootm ${kernel_addr} ${ramdisk_addr}\0" \ 68 "net_nfs=tftp 200000 ${bootfile};run nfsargs addip;bootm\0" \ 69 "rootpath=/opt/eldk/ppc_8xx\0" \ 70 "hostname=TQM855M\0" \ 71 "bootfile=TQM855M/uImage\0" \ 72 "fdt_addr=40080000\0" \ 73 "kernel_addr=400A0000\0" \ 74 "ramdisk_addr=40280000\0" \ 75 "u-boot=TQM855M/u-image.bin\0" \ 76 "load=tftp 200000 ${u-boot}\0" \ 77 "update=prot off 40000000 +${filesize};" \ 78 "era 40000000 +${filesize};" \ 79 "cp.b 200000 40000000 ${filesize};" \ 80 "sete filesize;save\0" \ 81 "" 82 #define CONFIG_BOOTCOMMAND "run flash_self" 83 84 #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */ 85 #undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */ 86 87 #undef CONFIG_WATCHDOG /* watchdog disabled */ 88 89 #define CONFIG_STATUS_LED 1 /* Status LED enabled */ 90 91 #undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */ 92 93 /* enable I2C and select the hardware/software driver */ 94 #undef CONFIG_HARD_I2C /* I2C with hardware support */ 95 #define CONFIG_SOFT_I2C 1 /* I2C bit-banged */ 96 97 #define CONFIG_SYS_I2C_SPEED 93000 /* 93 kHz is supposed to work */ 98 #define CONFIG_SYS_I2C_SLAVE 0xFE 99 100 #ifdef CONFIG_SOFT_I2C 101 /* 102 * Software (bit-bang) I2C driver configuration 103 */ 104 #define PB_SCL 0x00000020 /* PB 26 */ 105 #define PB_SDA 0x00000010 /* PB 27 */ 106 107 #define I2C_INIT (immr->im_cpm.cp_pbdir |= PB_SCL) 108 #define I2C_ACTIVE (immr->im_cpm.cp_pbdir |= PB_SDA) 109 #define I2C_TRISTATE (immr->im_cpm.cp_pbdir &= ~PB_SDA) 110 #define I2C_READ ((immr->im_cpm.cp_pbdat & PB_SDA) != 0) 111 #define I2C_SDA(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SDA; \ 112 else immr->im_cpm.cp_pbdat &= ~PB_SDA 113 #define I2C_SCL(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SCL; \ 114 else immr->im_cpm.cp_pbdat &= ~PB_SCL 115 #define I2C_DELAY udelay(2) /* 1/4 I2C clock duration */ 116 #endif /* CONFIG_SOFT_I2C */ 117 118 #define CONFIG_SYS_I2C_EEPROM_ADDR 0x50 /* EEPROM AT24C64 */ 119 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 2 /* two byte address */ 120 #if 0 121 #define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 10 /* takes up to 10 msec */ 122 #define CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW 0x01 123 #define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 5 124 #endif 125 126 /* 127 * BOOTP options 128 */ 129 #define CONFIG_BOOTP_SUBNETMASK 130 #define CONFIG_BOOTP_GATEWAY 131 #define CONFIG_BOOTP_HOSTNAME 132 #define CONFIG_BOOTP_BOOTPATH 133 #define CONFIG_BOOTP_BOOTFILESIZE 134 135 136 #define CONFIG_MAC_PARTITION 137 #define CONFIG_DOS_PARTITION 138 139 #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */ 140 141 142 /* 143 * Command line configuration. 144 */ 145 #include <config_cmd_default.h> 146 147 #define CONFIG_CMD_ASKENV 148 #define CONFIG_CMD_DATE 149 #define CONFIG_CMD_DHCP 150 #define CONFIG_CMD_ELF 151 #define CONFIG_CMD_EXT2 152 #define CONFIG_CMD_EEPROM 153 #define CONFIG_CMD_IDE 154 #define CONFIG_CMD_JFFS2 155 #define CONFIG_CMD_NFS 156 #define CONFIG_CMD_SNTP 157 158 159 #define CONFIG_NETCONSOLE 160 161 162 /* 163 * Miscellaneous configurable options 164 */ 165 #define CONFIG_SYS_LONGHELP /* undef to save memory */ 166 #define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */ 167 168 #define CONFIG_CMDLINE_EDITING 1 /* add command line history */ 169 #define CONFIG_SYS_HUSH_PARSER 1 /* Use the HUSH parser */ 170 #ifdef CONFIG_SYS_HUSH_PARSER 171 #define CONFIG_SYS_PROMPT_HUSH_PS2 "> " 172 #endif 173 174 #if defined(CONFIG_CMD_KGDB) 175 #define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */ 176 #else 177 #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */ 178 #endif 179 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */ 180 #define CONFIG_SYS_MAXARGS 16 /* max number of command args */ 181 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */ 182 183 #define CONFIG_SYS_MEMTEST_START 0x0400000 /* memtest works on */ 184 #define CONFIG_SYS_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */ 185 186 #define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */ 187 188 #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */ 189 190 #define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } 191 192 /* 193 * Low Level Configuration Settings 194 * (address mappings, register initial values, etc.) 195 * You should know what you are doing if you make changes here. 196 */ 197 /*----------------------------------------------------------------------- 198 * Internal Memory Mapped Register 199 */ 200 #define CONFIG_SYS_IMMR 0xFFF00000 201 202 /*----------------------------------------------------------------------- 203 * Definitions for initial stack pointer and data area (in DPRAM) 204 */ 205 #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR 206 #define CONFIG_SYS_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */ 207 #define CONFIG_SYS_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */ 208 #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE) 209 #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET 210 211 /*----------------------------------------------------------------------- 212 * Start addresses for the final memory configuration 213 * (Set up by the startup code) 214 * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0 215 */ 216 #define CONFIG_SYS_SDRAM_BASE 0x00000000 217 #define CONFIG_SYS_FLASH_BASE 0x40000000 218 #define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */ 219 #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE 220 #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */ 221 222 /* 223 * For booting Linux, the board info and command line data 224 * have to be in the first 8 MB of memory, since this is 225 * the maximum mapped by the Linux kernel during initialization. 226 */ 227 #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */ 228 229 /*----------------------------------------------------------------------- 230 * FLASH organization 231 */ 232 233 /* use CFI flash driver */ 234 #define CONFIG_SYS_FLASH_CFI 1 /* Flash is CFI conformant */ 235 #define CONFIG_FLASH_CFI_DRIVER 1 /* Use the common driver */ 236 #define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE } 237 #define CONFIG_SYS_FLASH_EMPTY_INFO 238 #define CONFIG_SYS_FLASH_USE_BUFFER_WRITE 1 239 #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */ 240 #define CONFIG_SYS_MAX_FLASH_SECT 256 /* max number of sectors on one chip */ 241 242 #define CONFIG_ENV_IS_IN_FLASH 1 243 #define CONFIG_ENV_OFFSET 0x40000 /* Offset of Environment Sector */ 244 #define CONFIG_ENV_SIZE 0x08000 /* Total Size of Environment */ 245 #define CONFIG_ENV_SECT_SIZE 0x20000 /* Total Size of Environment Sector */ 246 247 /* Address and size of Redundant Environment Sector */ 248 #define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET+CONFIG_ENV_SECT_SIZE) 249 #define CONFIG_ENV_SIZE_REDUND (CONFIG_ENV_SIZE) 250 251 #define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */ 252 253 #define CONFIG_MISC_INIT_R /* Make sure to remap flashes correctly */ 254 255 /*----------------------------------------------------------------------- 256 * Dynamic MTD partition support 257 */ 258 #define CONFIG_CMD_MTDPARTS 259 #define CONFIG_MTD_DEVICE /* needed for mtdparts commands */ 260 #define CONFIG_FLASH_CFI_MTD 261 #define MTDIDS_DEFAULT "nor0=TQM8xxM-0" 262 263 #define MTDPARTS_DEFAULT "mtdparts=TQM8xxM-0:512k(u-boot)," \ 264 "128k(dtb)," \ 265 "1920k(kernel)," \ 266 "5632(rootfs)," \ 267 "4m(data)" 268 269 /*----------------------------------------------------------------------- 270 * Hardware Information Block 271 */ 272 #define CONFIG_SYS_HWINFO_OFFSET 0x0003FFC0 /* offset of HW Info block */ 273 #define CONFIG_SYS_HWINFO_SIZE 0x00000040 /* size of HW Info block */ 274 #define CONFIG_SYS_HWINFO_MAGIC 0x54514D38 /* 'TQM8' */ 275 276 /*----------------------------------------------------------------------- 277 * Cache Configuration 278 */ 279 #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */ 280 #if defined(CONFIG_CMD_KGDB) 281 #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */ 282 #endif 283 284 /*----------------------------------------------------------------------- 285 * SYPCR - System Protection Control 11-9 286 * SYPCR can only be written once after reset! 287 *----------------------------------------------------------------------- 288 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze 289 */ 290 #if defined(CONFIG_WATCHDOG) 291 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \ 292 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP) 293 #else 294 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP) 295 #endif 296 297 /*----------------------------------------------------------------------- 298 * SIUMCR - SIU Module Configuration 11-6 299 *----------------------------------------------------------------------- 300 * PCMCIA config., multi-function pin tri-state 301 */ 302 #ifndef CONFIG_CAN_DRIVER 303 #define CONFIG_SYS_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01) 304 #else /* we must activate GPL5 in the SIUMCR for CAN */ 305 #define CONFIG_SYS_SIUMCR (SIUMCR_DBGC11 | SIUMCR_DBPC00 | SIUMCR_MLRC01) 306 #endif /* CONFIG_CAN_DRIVER */ 307 308 /*----------------------------------------------------------------------- 309 * TBSCR - Time Base Status and Control 11-26 310 *----------------------------------------------------------------------- 311 * Clear Reference Interrupt Status, Timebase freezing enabled 312 */ 313 #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF) 314 315 /*----------------------------------------------------------------------- 316 * RTCSC - Real-Time Clock Status and Control Register 11-27 317 *----------------------------------------------------------------------- 318 */ 319 #define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE) 320 321 /*----------------------------------------------------------------------- 322 * PISCR - Periodic Interrupt Status and Control 11-31 323 *----------------------------------------------------------------------- 324 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled 325 */ 326 #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF) 327 328 /*----------------------------------------------------------------------- 329 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30 330 *----------------------------------------------------------------------- 331 * Reset PLL lock status sticky bit, timer expired status bit and timer 332 * interrupt status bit 333 */ 334 #define CONFIG_SYS_PLPRCR (PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST) 335 336 /*----------------------------------------------------------------------- 337 * SCCR - System Clock and reset Control Register 15-27 338 *----------------------------------------------------------------------- 339 * Set clock output, timebase and RTC source and divider, 340 * power management and some other internal clocks 341 */ 342 #define SCCR_MASK SCCR_EBDF11 343 #define CONFIG_SYS_SCCR (SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \ 344 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \ 345 SCCR_DFALCD00) 346 347 /*----------------------------------------------------------------------- 348 * PCMCIA stuff 349 *----------------------------------------------------------------------- 350 * 351 */ 352 #define CONFIG_SYS_PCMCIA_MEM_ADDR (0xE0000000) 353 #define CONFIG_SYS_PCMCIA_MEM_SIZE ( 64 << 20 ) 354 #define CONFIG_SYS_PCMCIA_DMA_ADDR (0xE4000000) 355 #define CONFIG_SYS_PCMCIA_DMA_SIZE ( 64 << 20 ) 356 #define CONFIG_SYS_PCMCIA_ATTRB_ADDR (0xE8000000) 357 #define CONFIG_SYS_PCMCIA_ATTRB_SIZE ( 64 << 20 ) 358 #define CONFIG_SYS_PCMCIA_IO_ADDR (0xEC000000) 359 #define CONFIG_SYS_PCMCIA_IO_SIZE ( 64 << 20 ) 360 361 /*----------------------------------------------------------------------- 362 * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter) 363 *----------------------------------------------------------------------- 364 */ 365 366 #define CONFIG_IDE_8xx_PCCARD 1 /* Use IDE with PC Card Adapter */ 367 368 #undef CONFIG_IDE_8xx_DIRECT /* Direct IDE not supported */ 369 #undef CONFIG_IDE_LED /* LED for ide not supported */ 370 #undef CONFIG_IDE_RESET /* reset for ide not supported */ 371 372 #define CONFIG_SYS_IDE_MAXBUS 1 /* max. 1 IDE bus */ 373 #define CONFIG_SYS_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */ 374 375 #define CONFIG_SYS_ATA_IDE0_OFFSET 0x0000 376 377 #define CONFIG_SYS_ATA_BASE_ADDR CONFIG_SYS_PCMCIA_MEM_ADDR 378 379 /* Offset for data I/O */ 380 #define CONFIG_SYS_ATA_DATA_OFFSET (CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320) 381 382 /* Offset for normal register accesses */ 383 #define CONFIG_SYS_ATA_REG_OFFSET (2 * CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320) 384 385 /* Offset for alternate registers */ 386 #define CONFIG_SYS_ATA_ALT_OFFSET 0x0100 387 388 /*----------------------------------------------------------------------- 389 * 390 *----------------------------------------------------------------------- 391 * 392 */ 393 #define CONFIG_SYS_DER 0 394 395 /* 396 * Init Memory Controller: 397 * 398 * BR0/1 and OR0/1 (FLASH) 399 */ 400 401 #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */ 402 #define FLASH_BASE1_PRELIM 0x60000000 /* FLASH bank #0 */ 403 404 /* used to re-map FLASH both when starting from SRAM or FLASH: 405 * restrict access enough to keep SRAM working (if any) 406 * but not too much to meddle with FLASH accesses 407 */ 408 #define CONFIG_SYS_REMAP_OR_AM 0x80000000 /* OR addr mask */ 409 #define CONFIG_SYS_PRELIM_OR_AM 0xE0000000 /* OR addr mask */ 410 411 /* 412 * FLASH timing: 413 */ 414 #define CONFIG_SYS_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \ 415 OR_SCY_3_CLK | OR_EHTR | OR_BI) 416 417 #define CONFIG_SYS_OR0_REMAP (CONFIG_SYS_REMAP_OR_AM | CONFIG_SYS_OR_TIMING_FLASH) 418 #define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_FLASH) 419 #define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V ) 420 421 #define CONFIG_SYS_OR1_REMAP CONFIG_SYS_OR0_REMAP 422 #define CONFIG_SYS_OR1_PRELIM CONFIG_SYS_OR0_PRELIM 423 #define CONFIG_SYS_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_V ) 424 425 /* 426 * BR2/3 and OR2/3 (SDRAM) 427 * 428 */ 429 #define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */ 430 #define SDRAM_BASE3_PRELIM 0x20000000 /* SDRAM bank #1 */ 431 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */ 432 433 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */ 434 #define CONFIG_SYS_OR_TIMING_SDRAM 0x00000A00 435 436 #define CONFIG_SYS_OR2_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_SDRAM ) 437 #define CONFIG_SYS_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) 438 439 #ifndef CONFIG_CAN_DRIVER 440 #define CONFIG_SYS_OR3_PRELIM CONFIG_SYS_OR2_PRELIM 441 #define CONFIG_SYS_BR3_PRELIM ((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) 442 #else /* CAN uses CS3#, so we can have only one SDRAM bank anyway */ 443 #define CONFIG_SYS_CAN_BASE 0xC0000000 /* CAN mapped at 0xC0000000 */ 444 #define CONFIG_SYS_CAN_OR_AM 0xFFFF8000 /* 32 kB address mask */ 445 #define CONFIG_SYS_OR3_CAN (CONFIG_SYS_CAN_OR_AM | OR_G5LA | OR_BI) 446 #define CONFIG_SYS_BR3_CAN ((CONFIG_SYS_CAN_BASE & BR_BA_MSK) | \ 447 BR_PS_8 | BR_MS_UPMB | BR_V ) 448 #endif /* CONFIG_CAN_DRIVER */ 449 450 /* 451 * Memory Periodic Timer Prescaler 452 * 453 * The Divider for PTA (refresh timer) configuration is based on an 454 * example SDRAM configuration (64 MBit, one bank). The adjustment to 455 * the number of chip selects (NCS) and the actually needed refresh 456 * rate is done by setting MPTPR. 457 * 458 * PTA is calculated from 459 * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS) 460 * 461 * gclk CPU clock (not bus clock!) 462 * Trefresh Refresh cycle * 4 (four word bursts used) 463 * 464 * 4096 Rows from SDRAM example configuration 465 * 1000 factor s -> ms 466 * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration 467 * 4 Number of refresh cycles per period 468 * 64 Refresh cycle in ms per number of rows 469 * -------------------------------------------- 470 * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000 471 * 472 * 50 MHz => 50.000.000 / Divider = 98 473 * 66 Mhz => 66.000.000 / Divider = 129 474 * 80 Mhz => 80.000.000 / Divider = 156 475 */ 476 477 #define CONFIG_SYS_PTA_PER_CLK ((4096 * 32 * 1000) / (4 * 64)) 478 #define CONFIG_SYS_MAMR_PTA 98 479 480 /* 481 * For 16 MBit, refresh rates could be 31.3 us 482 * (= 64 ms / 2K = 125 / quad bursts). 483 * For a simpler initialization, 15.6 us is used instead. 484 * 485 * #define CONFIG_SYS_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks 486 * #define CONFIG_SYS_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank 487 */ 488 #define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */ 489 #define CONFIG_SYS_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */ 490 491 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */ 492 #define CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */ 493 #define CONFIG_SYS_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */ 494 495 /* 496 * MAMR settings for SDRAM 497 */ 498 499 /* 8 column SDRAM */ 500 #define CONFIG_SYS_MAMR_8COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ 501 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \ 502 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) 503 /* 9 column SDRAM */ 504 #define CONFIG_SYS_MAMR_9COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ 505 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \ 506 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) 507 508 509 /* 510 * Internal Definitions 511 * 512 * Boot Flags 513 */ 514 #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */ 515 #define BOOTFLAG_WARM 0x02 /* Software reboot */ 516 517 #define CONFIG_SCC1_ENET 518 #define CONFIG_FEC_ENET 519 #define CONFIG_ETHPRIME "SCC ETHERNET" 520 521 /* pass open firmware flat tree */ 522 #define CONFIG_OF_LIBFDT 1 523 #define CONFIG_OF_BOARD_SETUP 1 524 #define CONFIG_HWCONFIG 1 525 526 #endif /* __CONFIG_H */ 527