Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2000-2004 |
| 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 | * Dan Malek, Embedded Edge, LLC, dan@embeddededge.com |
| 26 | * U-Boot port on STx XTc 8xx board |
| 27 | * Mostly copied from Panto's NETTA2 board. |
| 28 | */ |
| 29 | |
| 30 | #ifndef __CONFIG_H |
| 31 | #define __CONFIG_H |
| 32 | |
| 33 | /* |
| 34 | * High Level Configuration Options |
| 35 | * (easy to change) |
| 36 | */ |
| 37 | |
| 38 | #define CONFIG_MPC875 1 /* This is a MPC875 CPU */ |
| 39 | #define CONFIG_STXXTC 1 /* ...on a STx XTc board */ |
| 40 | |
| 41 | #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */ |
| 42 | #undef CONFIG_8xx_CONS_SMC2 |
| 43 | #undef CONFIG_8xx_CONS_NONE |
| 44 | |
Wolfgang Denk | 969542b | 2005-09-13 00:12:33 +0200 | [diff] [blame] | 45 | #define CONFIG_BAUDRATE 115200 /* console baudrate = 115.2kbps */ |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 46 | |
| 47 | #define CONFIG_XIN 10000000 /* 10 MHz input xtal */ |
| 48 | |
| 49 | /* Select one of few clock rates defined later in this file. |
| 50 | */ |
| 51 | /* #define MPC8XX_HZ 50000000 */ |
| 52 | #define MPC8XX_HZ 66666666 |
| 53 | |
| 54 | #define CONFIG_8xx_GCLK_FREQ MPC8XX_HZ |
| 55 | |
| 56 | #if 0 |
| 57 | #define CONFIG_BOOTDELAY -1 /* autoboot disabled */ |
| 58 | #else |
| 59 | #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */ |
| 60 | #endif |
| 61 | |
| 62 | #undef CONFIG_CLOCKS_IN_MHZ /* clocks NOT passsed to Linux in MHz */ |
| 63 | |
| 64 | #undef CONFIG_BOOTARGS |
| 65 | #define CONFIG_BOOTCOMMAND \ |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 66 | "tftpboot; " \ |
| 67 | "setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \ |
| 68 | "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; " \ |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 69 | "bootm" |
| 70 | |
| 71 | #define CONFIG_AUTOSCRIPT |
| 72 | #define CONFIG_LOADS_ECHO 0 /* echo off for serial download */ |
| 73 | #undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */ |
| 74 | |
| 75 | #undef CONFIG_WATCHDOG /* watchdog disabled */ |
| 76 | |
| 77 | #define CONFIG_STATUS_LED 1 /* Status LED enabled */ |
| 78 | #define CONFIG_BOARD_SPECIFIC_LED /* version has board specific leds */ |
| 79 | |
Jon Loeliger | c6d535a | 2007-07-09 21:57:31 -0500 | [diff] [blame] | 80 | /* |
| 81 | * BOOTP options |
| 82 | */ |
| 83 | #define CONFIG_BOOTP_SUBNETMASK |
| 84 | #define CONFIG_BOOTP_GATEWAY |
| 85 | #define CONFIG_BOOTP_HOSTNAME |
| 86 | #define CONFIG_BOOTP_BOOTPATH |
| 87 | #define CONFIG_BOOTP_BOOTFILESIZE |
| 88 | #define CONFIG_BOOTP_NISDOMAIN |
| 89 | |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 90 | |
| 91 | #undef CONFIG_MAC_PARTITION |
| 92 | #undef CONFIG_DOS_PARTITION |
| 93 | |
| 94 | #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */ |
| 95 | |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 96 | #define CONFIG_NET_MULTI 1 /* the only way to get the FEC in */ |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 97 | #define FEC_ENET 1 /* eth.c needs it that way... */ |
| 98 | #undef CFG_DISCOVER_PHY |
| 99 | #define CONFIG_MII 1 |
TsiChung Liew | b316245 | 2008-03-30 01:22:13 -0500 | [diff] [blame] | 100 | #define CONFIG_MII_INIT 1 |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 101 | #undef CONFIG_RMII |
| 102 | |
| 103 | #define CONFIG_ETHER_ON_FEC1 1 |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 104 | #define CONFIG_FEC1_PHY 1 /* phy address of FEC */ |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 105 | #undef CONFIG_FEC1_PHY_NORXERR |
| 106 | |
| 107 | #define CONFIG_ETHER_ON_FEC2 1 |
| 108 | #define CONFIG_FEC2_PHY 3 |
| 109 | #undef CONFIG_FEC2_PHY_NORXERR |
| 110 | |
| 111 | #define CONFIG_ENV_OVERWRITE 1 /* allow modification of vendor params */ |
| 112 | |
Jon Loeliger | 595f262 | 2007-07-04 22:31:07 -0500 | [diff] [blame] | 113 | |
| 114 | /* |
| 115 | * Command line configuration. |
| 116 | */ |
| 117 | #include <config_cmd_default.h> |
| 118 | |
| 119 | #define CONFIG_CMD_DHCP |
| 120 | #define CONFIG_CMD_MII |
| 121 | #define CONFIG_CMD_NAND |
| 122 | #define CONFIG_CMD_NFS |
| 123 | #define CONFIG_CMD_PING |
| 124 | |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 125 | |
| 126 | #define CONFIG_BOARD_EARLY_INIT_F 1 |
| 127 | #define CONFIG_MISC_INIT_R |
| 128 | |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 129 | /* |
| 130 | * Miscellaneous configurable options |
| 131 | */ |
| 132 | #define CFG_LONGHELP /* undef to save memory */ |
| 133 | #define CFG_PROMPT "xtc> " /* Monitor Command Prompt */ |
| 134 | |
| 135 | #define CFG_HUSH_PARSER 1 |
| 136 | #define CFG_PROMPT_HUSH_PS2 "> " |
| 137 | |
Jon Loeliger | 595f262 | 2007-07-04 22:31:07 -0500 | [diff] [blame] | 138 | #if defined(CONFIG_CMD_KGDB) |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 139 | #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */ |
| 140 | #else |
| 141 | #define CFG_CBSIZE 256 /* Console I/O Buffer Size */ |
| 142 | #endif |
| 143 | #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */ |
| 144 | #define CFG_MAXARGS 16 /* max number of command args */ |
| 145 | #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */ |
| 146 | |
| 147 | #define CFG_MEMTEST_START 0x0300000 /* memtest works on */ |
| 148 | #define CFG_MEMTEST_END 0x0700000 /* 3 ... 7 MB in DRAM */ |
| 149 | |
| 150 | #define CFG_LOAD_ADDR 0x100000 /* default load address */ |
| 151 | |
| 152 | #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */ |
| 153 | |
| 154 | #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } |
| 155 | |
| 156 | /* |
| 157 | * Low Level Configuration Settings |
| 158 | * (address mappings, register initial values, etc.) |
| 159 | * You should know what you are doing if you make changes here. |
| 160 | */ |
| 161 | /*----------------------------------------------------------------------- |
| 162 | * Internal Memory Mapped Register |
| 163 | */ |
| 164 | #define CFG_IMMR 0xFF000000 |
| 165 | |
| 166 | /*----------------------------------------------------------------------- |
| 167 | * Definitions for initial stack pointer and data area (in DPRAM) |
| 168 | */ |
| 169 | #define CFG_INIT_RAM_ADDR CFG_IMMR |
| 170 | #define CFG_INIT_RAM_END 0x3000 /* End of used area in DPRAM */ |
| 171 | #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */ |
| 172 | #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) |
| 173 | #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET |
| 174 | |
| 175 | /*----------------------------------------------------------------------- |
| 176 | * Start addresses for the final memory configuration |
| 177 | * (Set up by the startup code) |
| 178 | * Please note that CFG_SDRAM_BASE _must_ start at 0 |
| 179 | */ |
| 180 | #define CFG_SDRAM_BASE 0x00000000 |
| 181 | #define CFG_FLASH_BASE 0x40000000 |
| 182 | #if defined(DEBUG) |
| 183 | #define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */ |
| 184 | #else |
| 185 | #define CFG_MONITOR_LEN (192 << 10) /* Reserve 192 kB for Monitor */ |
| 186 | #endif |
| 187 | |
| 188 | /* yes this is weird, I know :) */ |
| 189 | #define CFG_MONITOR_BASE (CFG_FLASH_BASE | 0x00F00000) |
| 190 | #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */ |
| 191 | |
| 192 | #define CFG_RESET_ADDRESS 0x80000000 |
| 193 | |
| 194 | /* |
| 195 | * For booting Linux, the board info and command line data |
| 196 | * have to be in the first 8 MB of memory, since this is |
| 197 | * the maximum mapped by the Linux kernel during initialization. |
| 198 | */ |
| 199 | #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */ |
| 200 | |
| 201 | /*----------------------------------------------------------------------- |
| 202 | * FLASH organization |
| 203 | */ |
| 204 | #define CFG_ENV_IS_IN_FLASH 1 |
| 205 | #define CFG_ENV_SECT_SIZE 0x10000 |
| 206 | |
| 207 | #define CFG_ENV_ADDR (CFG_FLASH_BASE + 0x00000000) |
| 208 | #define CFG_ENV_OFFSET 0 |
| 209 | #define CFG_ENV_SIZE 0x4000 |
| 210 | |
| 211 | #define CFG_ENV_ADDR_REDUND (CFG_FLASH_BASE + 0x00010000) |
| 212 | #define CFG_ENV_OFFSET_REDUND 0 |
| 213 | #define CFG_ENV_SIZE_REDUND CFG_ENV_SIZE |
| 214 | |
| 215 | #define CFG_FLASH_CFI 1 |
Jean-Christophe PLAGNIOL-VILLARD | 8d94c23 | 2008-08-13 01:40:42 +0200 | [diff] [blame] | 216 | #define CONFIG_FLASH_CFI_DRIVER 1 |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 217 | #undef CFG_FLASH_USE_BUFFER_WRITE /* use buffered writes (20x faster) */ |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 218 | #define CFG_MAX_FLASH_SECT 128 /* max number of sectors on one chip */ |
| 219 | #define CFG_MAX_FLASH_BANKS 2 /* max number of memory banks */ |
| 220 | |
| 221 | #define CFG_FLASH_BANKS_LIST { CFG_FLASH_BASE, CFG_FLASH_BASE + 0x2000000 } |
| 222 | |
| 223 | #define CFG_FLASH_PROTECTION |
| 224 | |
| 225 | /*----------------------------------------------------------------------- |
| 226 | * Cache Configuration |
| 227 | */ |
| 228 | #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */ |
Jon Loeliger | 595f262 | 2007-07-04 22:31:07 -0500 | [diff] [blame] | 229 | #if defined(CONFIG_CMD_KGDB) |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 230 | #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */ |
| 231 | #endif |
| 232 | |
| 233 | /*----------------------------------------------------------------------- |
| 234 | * SYPCR - System Protection Control 11-9 |
| 235 | * SYPCR can only be written once after reset! |
| 236 | *----------------------------------------------------------------------- |
| 237 | * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze |
| 238 | */ |
| 239 | #if defined(CONFIG_WATCHDOG) |
| 240 | #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \ |
| 241 | SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP) |
| 242 | #else |
| 243 | #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP) |
| 244 | #endif |
| 245 | |
| 246 | /*----------------------------------------------------------------------- |
| 247 | * SIUMCR - SIU Module Configuration 11-6 |
| 248 | *----------------------------------------------------------------------- |
| 249 | * PCMCIA config., multi-function pin tri-state |
| 250 | */ |
| 251 | #define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01 | SIUMCR_FRC | SIUMCR_GB5E) |
| 252 | |
| 253 | /*----------------------------------------------------------------------- |
| 254 | * TBSCR - Time Base Status and Control 11-26 |
| 255 | *----------------------------------------------------------------------- |
| 256 | * Clear Reference Interrupt Status, Timebase freezing enabled |
| 257 | */ |
| 258 | #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF) |
| 259 | |
| 260 | /*----------------------------------------------------------------------- |
| 261 | * RTCSC - Real-Time Clock Status and Control Register 11-27 |
| 262 | *----------------------------------------------------------------------- |
| 263 | */ |
| 264 | #define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE) |
| 265 | |
| 266 | /*----------------------------------------------------------------------- |
| 267 | * PISCR - Periodic Interrupt Status and Control 11-31 |
| 268 | *----------------------------------------------------------------------- |
| 269 | * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled |
| 270 | */ |
| 271 | #define CFG_PISCR (PISCR_PS | PISCR_PITF) |
| 272 | |
| 273 | /*----------------------------------------------------------------------- |
| 274 | * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30 |
| 275 | *----------------------------------------------------------------------- |
| 276 | * Reset PLL lock status sticky bit, timer expired status bit and timer |
| 277 | * interrupt status bit |
| 278 | * |
| 279 | */ |
| 280 | |
| 281 | #if CONFIG_XIN == 10000000 |
| 282 | |
| 283 | #if MPC8XX_HZ == 50000000 |
| 284 | #define CFG_PLPRCR ((0 << PLPRCR_MFN_SHIFT) | (0 << PLPRCR_MFD_SHIFT) | \ |
| 285 | (1 << PLPRCR_S_SHIFT) | (10 << PLPRCR_MFI_SHIFT) | (0 << PLPRCR_PDF_SHIFT) | \ |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 286 | PLPRCR_TEXPS) |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 287 | #elif MPC8XX_HZ == 66666666 |
| 288 | #define CFG_PLPRCR ((1 << PLPRCR_MFN_SHIFT) | (2 << PLPRCR_MFD_SHIFT) | \ |
| 289 | (1 << PLPRCR_S_SHIFT) | (13 << PLPRCR_MFI_SHIFT) | (0 << PLPRCR_PDF_SHIFT) | \ |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 290 | PLPRCR_TEXPS) |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 291 | #else |
| 292 | #error unsupported CPU freq for XIN = 10MHz |
| 293 | #endif |
| 294 | #else |
| 295 | #error unsupported freq for XIN (must be 10MHz) |
| 296 | #endif |
| 297 | |
| 298 | |
| 299 | /* |
| 300 | *----------------------------------------------------------------------- |
| 301 | * SCCR - System Clock and reset Control Register 15-27 |
| 302 | *----------------------------------------------------------------------- |
| 303 | * Set clock output, timebase and RTC source and divider, |
| 304 | * power management and some other internal clocks |
| 305 | * |
| 306 | * Note: When TBS == 0 the timebase is independent of current cpu clock. |
| 307 | */ |
| 308 | |
| 309 | #define SCCR_MASK SCCR_EBDF11 |
| 310 | #if MPC8XX_HZ > 66666666 |
| 311 | #define CFG_SCCR (/* SCCR_TBS | */ SCCR_CRQEN | \ |
| 312 | SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \ |
| 313 | SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \ |
| 314 | SCCR_DFALCD00 | SCCR_EBDF01) |
| 315 | #else |
| 316 | #define CFG_SCCR (/* SCCR_TBS | */ SCCR_CRQEN | \ |
| 317 | SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \ |
| 318 | SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \ |
| 319 | SCCR_DFALCD00) |
| 320 | #endif |
| 321 | |
| 322 | /*----------------------------------------------------------------------- |
| 323 | * |
| 324 | *----------------------------------------------------------------------- |
| 325 | * |
| 326 | */ |
| 327 | /*#define CFG_DER 0x2002000F*/ |
| 328 | #define CFG_DER 0 |
| 329 | |
| 330 | /* |
| 331 | * Init Memory Controller: |
| 332 | * |
| 333 | * BR0/1 and OR0/1 (FLASH) |
| 334 | */ |
| 335 | |
| 336 | #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */ |
| 337 | #define FLASH_BASE1_PRELIM 0x42000000 /* FLASH bank #1 */ |
| 338 | |
| 339 | /* used to re-map FLASH both when starting from SRAM or FLASH: |
| 340 | * restrict access enough to keep SRAM working (if any) |
| 341 | * but not too much to meddle with FLASH accesses |
| 342 | */ |
| 343 | |
| 344 | #define FLASH_BANK_MAX_SIZE 0x01000000 /* max size per chip */ |
| 345 | |
| 346 | #define CFG_REMAP_OR_AM 0x80000000 |
| 347 | #define CFG_PRELIM_OR_AM (0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1)) |
| 348 | |
| 349 | /* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1 */ |
| 350 | #define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_BI | OR_SCY_5_CLK | OR_TRLX) |
| 351 | |
| 352 | #define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH) |
| 353 | #define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH) |
| 354 | #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V ) |
| 355 | |
| 356 | #define CFG_OR1_PRELIM ((0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1)) | CFG_OR_TIMING_FLASH) |
| 357 | #define CFG_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V ) |
| 358 | |
| 359 | /* |
| 360 | * BR4 and OR4 (SDRAM) |
| 361 | * |
| 362 | */ |
| 363 | #define SDRAM_BASE1_PRELIM 0x00000000 /* SDRAM bank #0 */ |
| 364 | #define SDRAM_MAX_SIZE (256 << 20) /* max 256MB per bank */ |
| 365 | |
| 366 | /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */ |
| 367 | #define CFG_OR_TIMING_SDRAM (OR_CSNT_SAM | OR_G5LS) |
| 368 | |
| 369 | #define CFG_OR4_PRELIM ((0xFFFFFFFFLU & ~(SDRAM_MAX_SIZE - 1)) | CFG_OR_TIMING_SDRAM) |
| 370 | #define CFG_BR4_PRELIM ((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_PS_32 | BR_V) |
| 371 | |
| 372 | /* |
| 373 | * Memory Periodic Timer Prescaler |
| 374 | */ |
| 375 | |
| 376 | /* |
| 377 | * Memory Periodic Timer Prescaler |
| 378 | * |
| 379 | * The Divider for PTA (refresh timer) configuration is based on an |
| 380 | * example SDRAM configuration (64 MBit, one bank). The adjustment to |
| 381 | * the number of chip selects (NCS) and the actually needed refresh |
| 382 | * rate is done by setting MPTPR. |
| 383 | * |
| 384 | * PTA is calculated from |
| 385 | * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS) |
| 386 | * |
| 387 | * gclk CPU clock (not bus clock!) |
| 388 | * Trefresh Refresh cycle * 4 (four word bursts used) |
| 389 | * |
| 390 | * 4096 Rows from SDRAM example configuration |
| 391 | * 1000 factor s -> ms |
| 392 | * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration |
| 393 | * 4 Number of refresh cycles per period |
| 394 | * 64 Refresh cycle in ms per number of rows |
| 395 | * -------------------------------------------- |
| 396 | * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000 |
| 397 | * |
| 398 | * 50 MHz => 50.000.000 / Divider = 98 |
| 399 | * 66 Mhz => 66.000.000 / Divider = 129 |
| 400 | * 80 Mhz => 80.000.000 / Divider = 156 |
| 401 | */ |
| 402 | |
| 403 | #define CFG_MAMR_PTA 234 |
| 404 | |
| 405 | /* |
| 406 | * For 16 MBit, refresh rates could be 31.3 us |
| 407 | * (= 64 ms / 2K = 125 / quad bursts). |
| 408 | * For a simpler initialization, 15.6 us is used instead. |
| 409 | * |
| 410 | * #define CFG_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks |
| 411 | * #define CFG_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank |
| 412 | */ |
| 413 | #define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */ |
| 414 | #define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */ |
| 415 | |
| 416 | /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */ |
| 417 | #define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */ |
| 418 | #define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */ |
| 419 | |
| 420 | /* |
| 421 | * MAMR settings for SDRAM |
| 422 | */ |
| 423 | |
| 424 | /* 8 column SDRAM */ |
| 425 | #define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ |
| 426 | MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \ |
| 427 | MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) |
| 428 | |
| 429 | /* 9 column SDRAM */ |
| 430 | #define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ |
| 431 | MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \ |
| 432 | MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) |
| 433 | |
| 434 | /* |
| 435 | * Internal Definitions |
| 436 | * |
| 437 | * Boot Flags |
| 438 | */ |
| 439 | #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */ |
| 440 | #define BOOTFLAG_WARM 0x02 /* Software reboot */ |
| 441 | |
| 442 | #define CONFIG_LAST_STAGE_INIT /* needed to reset the damn phys */ |
| 443 | |
| 444 | /****************************************************************/ |
| 445 | |
| 446 | #define NAND_SIZE 0x00010000 /* 64K */ |
| 447 | #define NAND_BASE 0xF1000000 |
| 448 | |
| 449 | /****************************************************************/ |
| 450 | |
| 451 | /* NAND */ |
Jean-Christophe PLAGNIOL-VILLARD | 719bb5f | 2008-08-13 01:40:43 +0200 | [diff] [blame] | 452 | #define CONFIG_NAND_LEGACY |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 453 | #define CFG_NAND_BASE NAND_BASE |
| 454 | #define CONFIG_MTD_NAND_ECC_JFFS2 |
| 455 | #define CONFIG_MTD_NAND_VERIFY_WRITE |
| 456 | #define CONFIG_MTD_NAND_UNSAFE |
| 457 | |
| 458 | #define CFG_MAX_NAND_DEVICE 1 |
| 459 | #undef NAND_NO_RB |
| 460 | |
| 461 | #define SECTORSIZE 512 |
| 462 | #define ADDR_COLUMN 1 |
| 463 | #define ADDR_PAGE 2 |
| 464 | #define ADDR_COLUMN_PAGE 3 |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 465 | #define NAND_ChipID_UNKNOWN 0x00 |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 466 | #define NAND_MAX_FLOORS 1 |
| 467 | #define NAND_MAX_CHIPS 1 |
| 468 | |
| 469 | /* ALE = PC15, CLE = PB23, CE = PA7, F_RY_BY = PA6 */ |
| 470 | #define NAND_DISABLE_CE(nand) \ |
| 471 | do { \ |
| 472 | (((volatile immap_t *)CFG_IMMR)->im_ioport.iop_padat) |= (1 << (15 - 7)); \ |
| 473 | } while(0) |
| 474 | |
| 475 | #define NAND_ENABLE_CE(nand) \ |
| 476 | do { \ |
| 477 | (((volatile immap_t *)CFG_IMMR)->im_ioport.iop_padat) &= ~(1 << (15 - 7)); \ |
| 478 | } while(0) |
| 479 | |
| 480 | #define NAND_CTL_CLRALE(nandptr) \ |
| 481 | do { \ |
| 482 | (((volatile immap_t *)CFG_IMMR)->im_ioport.iop_pcdat) &= ~(1 << (15 - 15)); \ |
| 483 | } while(0) |
| 484 | |
| 485 | #define NAND_CTL_SETALE(nandptr) \ |
| 486 | do { \ |
| 487 | (((volatile immap_t *)CFG_IMMR)->im_ioport.iop_pcdat) |= (1 << (15 - 15)); \ |
| 488 | } while(0) |
| 489 | |
| 490 | #define NAND_CTL_CLRCLE(nandptr) \ |
| 491 | do { \ |
| 492 | (((volatile immap_t *)CFG_IMMR)->im_cpm.cp_pbdat) &= ~(1 << (31 - 23)); \ |
| 493 | } while(0) |
| 494 | |
| 495 | #define NAND_CTL_SETCLE(nandptr) \ |
| 496 | do { \ |
| 497 | (((volatile immap_t *)CFG_IMMR)->im_cpm.cp_pbdat) |= (1 << (31 - 23)); \ |
| 498 | } while(0) |
| 499 | |
| 500 | #ifndef NAND_NO_RB |
| 501 | #define NAND_WAIT_READY(nand) \ |
| 502 | do { \ |
| 503 | int _tries = 0; \ |
| 504 | while ((((volatile immap_t *)CFG_IMMR)->im_ioport.iop_padat & (1 << (15 - 6))) == 0) \ |
| 505 | if (++_tries > 100000) \ |
| 506 | break; \ |
| 507 | } while (0) |
| 508 | #else |
| 509 | #define NAND_WAIT_READY(nand) udelay(12) |
| 510 | #endif |
| 511 | |
| 512 | #define WRITE_NAND_COMMAND(d, adr) \ |
| 513 | do { \ |
| 514 | *(volatile unsigned char *)((unsigned long)(adr)) = (unsigned char)(d); \ |
| 515 | } while(0) |
| 516 | |
| 517 | #define WRITE_NAND_ADDRESS(d, adr) \ |
| 518 | do { \ |
| 519 | *(volatile unsigned char *)((unsigned long)(adr)) = (unsigned char)(d); \ |
| 520 | } while(0) |
| 521 | |
| 522 | #define WRITE_NAND(d, adr) \ |
| 523 | do { \ |
| 524 | *(volatile unsigned char *)((unsigned long)(adr)) = (unsigned char)(d); \ |
| 525 | } while(0) |
| 526 | |
| 527 | #define READ_NAND(adr) \ |
| 528 | ((unsigned char)(*(volatile unsigned char *)(unsigned long)(adr))) |
| 529 | |
| 530 | /*****************************************************************************/ |
| 531 | |
| 532 | #define CFG_DIRECT_FLASH_TFTP |
| 533 | #define CFG_DIRECT_NAND_TFTP |
| 534 | |
| 535 | /*****************************************************************************/ |
| 536 | |
| 537 | /* Status Leds are on the MODCK pins, which become the PCMCIA PGCRB, |
| 538 | * CxOE and CxRESET. We use the CxOE. |
| 539 | */ |
| 540 | #define STATUS_LED_BIT 0x00000080 /* bit 24 */ |
| 541 | |
| 542 | #define STATUS_LED_PERIOD (CFG_HZ / 2) |
| 543 | #define STATUS_LED_STATE STATUS_LED_BLINKING |
| 544 | |
| 545 | #define STATUS_LED_ACTIVE 0 /* LED on for bit == 0 */ |
| 546 | #define STATUS_LED_BOOT 0 /* LED 0 used for boot status */ |
| 547 | |
| 548 | #ifndef __ASSEMBLY__ |
| 549 | |
| 550 | /* LEDs */ |
| 551 | |
| 552 | /* led_id_t is unsigned int mask */ |
| 553 | typedef unsigned int led_id_t; |
| 554 | |
| 555 | #define __led_toggle(_msk) \ |
| 556 | do { \ |
| 557 | ((volatile immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcrb ^= (_msk); \ |
| 558 | } while(0) |
| 559 | |
| 560 | #define __led_set(_msk, _st) \ |
| 561 | do { \ |
| 562 | if ((_st)) \ |
| 563 | ((volatile immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcrb |= (_msk); \ |
| 564 | else \ |
| 565 | ((volatile immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcrb &= ~(_msk); \ |
| 566 | } while(0) |
| 567 | |
| 568 | #define __led_init(msk, st) __led_set(msk, st) |
| 569 | |
| 570 | #endif |
| 571 | |
| 572 | /******************************************************************************/ |
| 573 | |
| 574 | #define CFG_CONSOLE_IS_IN_ENV 1 |
| 575 | #define CFG_CONSOLE_OVERWRITE_ROUTINE 1 |
| 576 | #define CFG_CONSOLE_ENV_OVERWRITE 1 |
| 577 | |
| 578 | /******************************************************************************/ |
| 579 | |
| 580 | /* use board specific hardware */ |
| 581 | #undef CONFIG_WATCHDOG /* watchdog disabled */ |
| 582 | #define CONFIG_HW_WATCHDOG |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 583 | |
| 584 | /*****************************************************************************/ |
| 585 | |
| 586 | #define CONFIG_AUTO_COMPLETE 1 |
| 587 | #define CONFIG_CRC32_VERIFY 1 |
| 588 | #define CONFIG_HUSH_OLD_PARSER_COMPATIBLE 1 |
| 589 | |
Wolfgang Denk | dfb1842 | 2005-10-13 01:49:09 +0200 | [diff] [blame] | 590 | /*****************************************************************************/ |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 591 | |
Gerald Van Baren | 76a90c6 | 2008-06-03 20:26:29 -0400 | [diff] [blame] | 592 | /* pass open firmware flattened device tree */ |
| 593 | #define CONFIG_OF_LIBFDT 1 |
Wolfgang Denk | dfb1842 | 2005-10-13 01:49:09 +0200 | [diff] [blame] | 594 | |
Wolfgang Denk | dfb1842 | 2005-10-13 01:49:09 +0200 | [diff] [blame] | 595 | #define OF_CPU "PowerPC,MPC870@0" |
| 596 | #define OF_TBCLK (MPC8XX_HZ / 16) |
Wolfgang Denk | 72fdb6c | 2005-08-15 15:55:00 +0200 | [diff] [blame] | 597 | |
| 598 | #endif /* __CONFIG_H */ |