1 /* 2 * (C) Copyright 2001 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_MPC823 1 /* This is a MPC823 CPU */ 37 #define CONFIG_FLAGADM 1 /* ...on a FLAGA DM */ 38 #define CONFIG_8xx_GCLK_FREQ 48000000 /*48MHz*/ 39 40 #undef CONFIG_8xx_CONS_SMC1 /* Console is on SMC1 */ 41 #define CONFIG_8xx_CONS_SMC2 1 42 #undef CONFIG_8xx_CONS_NONE 43 44 #define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */ 45 #define CONFIG_BOOTDELAY 3 /* autoboot after 5 seconds */ 46 47 #undef CONFIG_CLOCKS_IN_MHZ 48 49 #if 0 50 #define CONFIG_BOOTARGS "root=/dev/nfs rw ip=bootp" 51 #define CONFIG_BOOTCOMMAND \ 52 "setenv bootargs root=/dev/ram ip=off panic=1;" \ 53 "bootm 40040000 400e0000" 54 #else 55 #define CONFIG_BOOTARGS "root=/dev/nfs rw ip=bootp panic=1" 56 #define CONFIG_BOOTCOMMAND "bootp 0x400000; bootm 0x400000" 57 #endif /* 0|1*/ 58 59 #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */ 60 #undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */ 61 62 /*#define CONFIG_WATCHDOG*/ /* watchdog enabled */ 63 #undef CONFIG_WATCHDOG /* watchdog disabled */ 64 65 /* 66 * BOOTP options 67 */ 68 #define CONFIG_BOOTP_SUBNETMASK 69 #define CONFIG_BOOTP_GATEWAY 70 #define CONFIG_BOOTP_HOSTNAME 71 #define CONFIG_BOOTP_BOOTPATH 72 #define CONFIG_BOOTP_BOOTFILESIZE 73 74 75 /* 76 * Command line configuration. 77 */ 78 79 #define CONFIG_CMD_BDI 80 #define CONFIG_CMD_IMI 81 #define CONFIG_CMD_CACHE 82 #define CONFIG_CMD_MEMORY 83 #define CONFIG_CMD_FLASH 84 #define CONFIG_CMD_LOADB 85 #define CONFIG_CMD_LOADS 86 #define CONFIG_CMD_SAVEENV 87 #define CONFIG_CMD_REGINFO 88 #define CONFIG_CMD_IMMAP 89 #define CONFIG_CMD_NET 90 91 92 /* 93 * Miscellaneous configurable options 94 */ 95 #define CONFIG_SYS_LONGHELP /* undef to save memory */ 96 #define CONFIG_SYS_PROMPT "EEG> " /* Monitor Command Prompt */ 97 #if defined(CONFIG_CMD_KGDB) 98 #define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */ 99 #else 100 #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */ 101 #endif 102 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */ 103 #define CONFIG_SYS_MAXARGS 16 /* max number of command args */ 104 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */ 105 106 #define CONFIG_SYS_MEMTEST_START 0x0100000 /* memtest works on */ 107 #define CONFIG_SYS_MEMTEST_END 0x0f00000 /* 1 ... 15 MB in DRAM */ 108 109 #define CONFIG_SYS_LOAD_ADDR 0x40040000 /* default load address */ 110 111 #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */ 112 113 #define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } 114 115 /* 116 * Low Level Configuration Settings 117 * (address mappings, register initial values, etc.) 118 * You should know what you are doing if you make changes here. 119 */ 120 /*----------------------------------------------------------------------- 121 * Internal Memory Mapped Register 122 */ 123 #define CONFIG_SYS_IMMR 0xFF000000 124 125 /*----------------------------------------------------------------------- 126 * Definitions for initial stack pointer and data area (in DPRAM) 127 */ 128 #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR 129 #define CONFIG_SYS_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */ 130 #define CONFIG_SYS_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */ 131 #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE) 132 #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET 133 134 /*----------------------------------------------------------------------- 135 * Start addresses for the final memory configuration 136 * (Set up by the startup code) 137 * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0 138 */ 139 #define CONFIG_SYS_SDRAM_BASE 0x00000000 140 #define CONFIG_SYS_FLASH_BASE 0x40000000 141 #define CONFIG_SYS_MONITOR_LEN (128 << 10) /* Reserve 128 kB for Monitor */ 142 #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE 143 #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */ 144 145 /* 146 * For booting Linux, the board info and command line data 147 * have to be in the first 8 MB of memory, since this is 148 * the maximum mapped by the Linux kernel during initialization. 149 */ 150 #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */ 151 152 /*----------------------------------------------------------------------- 153 * FLASH organization 154 */ 155 #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */ 156 #define CONFIG_SYS_MAX_FLASH_SECT 71 /* max number of sectors on one chip */ 157 158 #define CONFIG_SYS_FLASH_ERASE_TOUT 8000 /* Timeout for Flash Erase (in ms) */ 159 #define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */ 160 161 #define CONFIG_ENV_IS_IN_FLASH 1 162 /* This is a litlebit wasteful, but one sector is 128kb and we have to 163 * assigne a whole sector for the environment, so that we can safely 164 * erase and write it without disturbing the boot sector 165 */ 166 #define CONFIG_ENV_OFFSET 0x20000 /* Offset of Environment Sector */ 167 #define CONFIG_ENV_SIZE 0x20000 /* Total Size of Environment Sector */ 168 169 /*----------------------------------------------------------------------- 170 * Cache Configuration 171 */ 172 #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */ 173 #if defined(CONFIG_CMD_KGDB) 174 #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */ 175 #endif 176 #define CONFIG_SYS_DELAYED_ICACHE 1 /* enable ICache not before 177 * running in RAM. 178 */ 179 180 /*----------------------------------------------------------------------- 181 * SYPCR - System Protection Control 11-9 182 * SYPCR can only be written once after reset! 183 *----------------------------------------------------------------------- 184 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze 185 */ 186 #ifdef CONFIG_WATCHDOG 187 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_SWF | SYPCR_SWE | SYPCR_SWRI | SYPCR_SWP) 188 #else 189 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF) 190 #endif 191 192 /*----------------------------------------------------------------------- 193 * SIUMCR - SIU Module Configuration 11-6 194 *----------------------------------------------------------------------- 195 * PCMCIA config., multi-function pin tri-state 196 */ 197 #define CONFIG_SYS_PRE_SIUMCR (SIUMCR_DBGC11 | SIUMCR_MPRE | \ 198 SIUMCR_MLRC01 | SIUMCR_GB5E) 199 #define CONFIG_SYS_SIUMCR (CONFIG_SYS_PRE_SIUMCR | SIUMCR_DLK) 200 201 /*----------------------------------------------------------------------- 202 * TBSCR - Time Base Status and Control 11-26 203 *----------------------------------------------------------------------- 204 * Clear Reference Interrupt Status, Timebase freezing enabled 205 */ 206 #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF) 207 208 /*----------------------------------------------------------------------- 209 * RTCSC - Real-Time Clock Status and Control Register 11-27 210 *----------------------------------------------------------------------- 211 */ 212 #define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE) 213 214 /*----------------------------------------------------------------------- 215 * PISCR - Periodic Interrupt Status and Control 11-31 216 *----------------------------------------------------------------------- 217 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled 218 */ 219 #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF) 220 221 /*----------------------------------------------------------------------- 222 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30 223 *----------------------------------------------------------------------- 224 * Reset PLL lock status sticky bit, timer expired status bit and timer 225 * interrupt status bit miltiplier of 0x00b i.e. operation clock is 226 * 4MHz * (0x00b+1) = 4MHz * 12 = 48MHz 227 */ 228 #define CONFIG_SYS_PLPRCR (0x00b00000 | PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST) 229 230 /*----------------------------------------------------------------------- 231 * SCCR - System Clock and reset Control Register 15-27 232 *----------------------------------------------------------------------- 233 * Set clock output, timebase and RTC source and divider, 234 * power management and some other internal clocks 235 */ 236 #define SCCR_MASK SCCR_EBDF11 237 #define CONFIG_SYS_SCCR ( SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \ 238 SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \ 239 SCCR_DFALCD00) 240 241 #define CONFIG_SYS_DER 0 242 243 /* 244 * In the Flaga DM we have: 245 * Flash on BR0/OR0/CS0a at 0x40000000 246 * Display on BR1/OR1/CS1 at 0x20000000 247 * SDRAM on BR2/OR2/CS2 at 0x00000000 248 * Free BR3/OR3/CS3 249 * DSP1 on BR4/OR4/CS4 at 0x80000000 250 * DSP2 on BR5/OR5/CS5 at 0xa0000000 251 * 252 * For now we just configure the Flash and the SDRAM and leave the others 253 * untouched. 254 */ 255 256 #define CONFIG_SYS_FLASH_PROTECTION 0 257 258 #define FLASH_BASE0 0x40000000 /* FLASH bank #0 */ 259 260 /* used to re-map FLASH both when starting from SRAM or FLASH: 261 * restrict access enough to keep SRAM working (if any) 262 * but not too much to meddle with FLASH accesses 263 */ 264 #define CONFIG_SYS_OR_AM 0xff000000 /* OR addr mask */ 265 #define CONFIG_SYS_OR_ATM 0x00006000 266 267 /* FLASH timing: ACS = 10, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */ 268 #define CONFIG_SYS_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV4 | OR_BI | \ 269 OR_SCY_3_CLK | OR_TRLX | OR_EHTR ) 270 271 #define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_OR_AM | CONFIG_SYS_OR_ATM | CONFIG_SYS_OR_TIMING_FLASH) 272 #define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0 & BR_BA_MSK) | BR_PS_16 | BR_V ) 273 274 /* 275 * BR2 and OR2 (SDRAM) 276 * 277 */ 278 #define SDRAM_BASE2 0x00000000 /* SDRAM bank #0 */ 279 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */ 280 281 /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */ 282 #define CONFIG_SYS_OR_TIMING_SDRAM ( 0x00000800 ) 283 284 #define CONFIG_SYS_OR2_PRELIM (CONFIG_SYS_OR_AM | CONFIG_SYS_OR_TIMING_SDRAM) 285 #define CONFIG_SYS_BR2_PRELIM ((SDRAM_BASE2 & BR_BA_MSK) | BR_MS_UPMA | BR_V ) 286 287 #define CONFIG_SYS_BR2 CONFIG_SYS_BR2_PRELIM 288 #define CONFIG_SYS_OR2 CONFIG_SYS_OR2_PRELIM 289 290 /* 291 * MAMR settings for SDRAM 292 */ 293 #define CONFIG_SYS_MAMR_48_SDR (CONFIG_SYS_MAMR_PTA | MAMR_WLFA_1X | MAMR_RLFA_1X \ 294 | MAMR_G0CLA_A11) 295 296 /* 297 * Memory Periodic Timer Prescaler 298 */ 299 300 /* periodic timer for refresh */ 301 #define CONFIG_SYS_MAMR_PTA 0x0F000000 302 303 /* 304 * BR4 and OR4 (DSP1) 305 * 306 * We do not wan't preliminary setup of the DSP, anyway we need the 307 * UPMB setup correctly before we can access the DSP. 308 * 309 */ 310 #define DSP_BASE 0x80000000 311 312 #define CONFIG_SYS_OR4 ( OR_AM_MSK | OR_CSNT_SAM | OR_BI | OR_G5LS) 313 #define CONFIG_SYS_BR4 ( (DSP_BASE & BR_BA_MSK) | BR_PS_16 | BR_MS_UPMB | BR_V ) 314 315 /* 316 * Internal Definitions 317 * 318 * Boot Flags 319 */ 320 #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */ 321 #define BOOTFLAG_WARM 0x02 /* Software reboot */ 322 323 #endif /* __CONFIG_H */ 324