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0f8c9768 WD |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Wolfgang Denk, DENX Software Engineering, [email protected]. | |
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 CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */ | |
61 | ||
62 | /*#define CONFIG_WATCHDOG*/ /* watchdog enabled */ | |
63 | #undef CONFIG_WATCHDOG /* watchdog disabled */ | |
64 | ||
5d2ebe1b JL |
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 | ||
0f8c9768 | 74 | |
60a0876b JL |
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_ENV | |
87 | #define CONFIG_CMD_REGINFO | |
88 | #define CONFIG_CMD_IMMAP | |
89 | #define CONFIG_CMD_NET | |
0f8c9768 | 90 | |
0f8c9768 WD |
91 | |
92 | /* | |
93 | * Miscellaneous configurable options | |
94 | */ | |
95 | #define CFG_LONGHELP /* undef to save memory */ | |
96 | #define CFG_PROMPT "EEG> " /* Monitor Command Prompt */ | |
60a0876b | 97 | #if defined(CONFIG_CMD_KGDB) |
0f8c9768 WD |
98 | #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */ |
99 | #else | |
100 | #define CFG_CBSIZE 256 /* Console I/O Buffer Size */ | |
101 | #endif | |
102 | #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */ | |
103 | #define CFG_MAXARGS 16 /* max number of command args */ | |
104 | #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */ | |
105 | ||
106 | #define CFG_MEMTEST_START 0x0100000 /* memtest works on */ | |
107 | #define CFG_MEMTEST_END 0x0f00000 /* 1 ... 15 MB in DRAM */ | |
108 | ||
109 | #define CFG_LOAD_ADDR 0x40040000 /* default load address */ | |
110 | ||
111 | #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */ | |
112 | ||
113 | #define CFG_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 CFG_IMMR 0xFF000000 | |
124 | ||
125 | /*----------------------------------------------------------------------- | |
126 | * Definitions for initial stack pointer and data area (in DPRAM) | |
127 | */ | |
128 | #define CFG_INIT_RAM_ADDR CFG_IMMR | |
129 | #define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */ | |
130 | #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */ | |
131 | #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) | |
132 | #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET | |
133 | ||
134 | /*----------------------------------------------------------------------- | |
135 | * Start addresses for the final memory configuration | |
136 | * (Set up by the startup code) | |
137 | * Please note that CFG_SDRAM_BASE _must_ start at 0 | |
138 | */ | |
139 | #define CFG_SDRAM_BASE 0x00000000 | |
140 | #define CFG_FLASH_BASE 0x40000000 | |
141 | #define CFG_MONITOR_LEN (128 << 10) /* Reserve 128 kB for Monitor */ | |
142 | #define CFG_MONITOR_BASE CFG_FLASH_BASE | |
143 | #define CFG_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 CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */ | |
151 | ||
152 | /*----------------------------------------------------------------------- | |
153 | * FLASH organization | |
154 | */ | |
155 | #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */ | |
156 | #define CFG_MAX_FLASH_SECT 71 /* max number of sectors on one chip */ | |
157 | ||
158 | #define CFG_FLASH_ERASE_TOUT 8000 /* Timeout for Flash Erase (in ms) */ | |
159 | #define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */ | |
160 | ||
5a1aceb0 | 161 | #define CONFIG_ENV_IS_IN_FLASH 1 |
0f8c9768 WD |
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 CFG_ENV_OFFSET 0x20000 /* Offset of Environment Sector */ | |
167 | #define CFG_ENV_SIZE 0x20000 /* Total Size of Environment Sector */ | |
168 | ||
169 | /*----------------------------------------------------------------------- | |
170 | * Cache Configuration | |
171 | */ | |
172 | #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */ | |
60a0876b | 173 | #if defined(CONFIG_CMD_KGDB) |
0f8c9768 WD |
174 | #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */ |
175 | #endif | |
176 | ||
177 | /*----------------------------------------------------------------------- | |
178 | * SYPCR - System Protection Control 11-9 | |
179 | * SYPCR can only be written once after reset! | |
180 | *----------------------------------------------------------------------- | |
181 | * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze | |
182 | */ | |
183 | #ifdef CONFIG_WATCHDOG | |
184 | #define CFG_SYPCR (SYPCR_SWTC | SYPCR_SWF | SYPCR_SWE | SYPCR_SWRI | SYPCR_SWP) | |
185 | #else | |
186 | #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF) | |
187 | #endif | |
188 | ||
189 | /*----------------------------------------------------------------------- | |
190 | * SIUMCR - SIU Module Configuration 11-6 | |
191 | *----------------------------------------------------------------------- | |
192 | * PCMCIA config., multi-function pin tri-state | |
193 | */ | |
194 | #define CFG_PRE_SIUMCR (SIUMCR_DBGC11 | SIUMCR_MPRE | \ | |
195 | SIUMCR_MLRC01 | SIUMCR_GB5E) | |
196 | #define CFG_SIUMCR (CFG_PRE_SIUMCR | SIUMCR_DLK) | |
197 | ||
198 | /*----------------------------------------------------------------------- | |
199 | * TBSCR - Time Base Status and Control 11-26 | |
200 | *----------------------------------------------------------------------- | |
201 | * Clear Reference Interrupt Status, Timebase freezing enabled | |
202 | */ | |
203 | #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF) | |
204 | ||
205 | /*----------------------------------------------------------------------- | |
206 | * RTCSC - Real-Time Clock Status and Control Register 11-27 | |
207 | *----------------------------------------------------------------------- | |
208 | */ | |
209 | #define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE) | |
210 | ||
211 | /*----------------------------------------------------------------------- | |
212 | * PISCR - Periodic Interrupt Status and Control 11-31 | |
213 | *----------------------------------------------------------------------- | |
214 | * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled | |
215 | */ | |
216 | #define CFG_PISCR (PISCR_PS | PISCR_PITF) | |
217 | ||
218 | /*----------------------------------------------------------------------- | |
219 | * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30 | |
220 | *----------------------------------------------------------------------- | |
221 | * Reset PLL lock status sticky bit, timer expired status bit and timer | |
222 | * interrupt status bit miltiplier of 0x00b i.e. operation clock is | |
223 | * 4MHz * (0x00b+1) = 4MHz * 12 = 48MHz | |
224 | */ | |
225 | #define CFG_PLPRCR (0x00b00000 | PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST) | |
226 | ||
227 | /*----------------------------------------------------------------------- | |
228 | * SCCR - System Clock and reset Control Register 15-27 | |
229 | *----------------------------------------------------------------------- | |
230 | * Set clock output, timebase and RTC source and divider, | |
231 | * power management and some other internal clocks | |
232 | */ | |
233 | #define SCCR_MASK SCCR_EBDF11 | |
234 | #define CFG_SCCR ( SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \ | |
235 | SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \ | |
236 | SCCR_DFALCD00) | |
237 | ||
238 | #define CFG_DER 0 | |
239 | ||
240 | /* | |
241 | * In the Flaga DM we have: | |
242 | * Flash on BR0/OR0/CS0a at 0x40000000 | |
243 | * Display on BR1/OR1/CS1 at 0x20000000 | |
244 | * SDRAM on BR2/OR2/CS2 at 0x00000000 | |
245 | * Free BR3/OR3/CS3 | |
246 | * DSP1 on BR4/OR4/CS4 at 0x80000000 | |
247 | * DSP2 on BR5/OR5/CS5 at 0xa0000000 | |
248 | * | |
249 | * For now we just configure the Flash and the SDRAM and leave the others | |
250 | * untouched. | |
251 | */ | |
252 | ||
253 | #define CFG_FLASH_PROTECTION 0 | |
254 | ||
255 | #define FLASH_BASE0 0x40000000 /* FLASH bank #0 */ | |
256 | ||
257 | /* used to re-map FLASH both when starting from SRAM or FLASH: | |
258 | * restrict access enough to keep SRAM working (if any) | |
259 | * but not too much to meddle with FLASH accesses | |
260 | */ | |
261 | #define CFG_OR_AM 0xff000000 /* OR addr mask */ | |
262 | #define CFG_OR_ATM 0x00006000 | |
263 | ||
264 | /* FLASH timing: ACS = 10, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */ | |
265 | #define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV4 | OR_BI | \ | |
266 | OR_SCY_3_CLK | OR_TRLX | OR_EHTR ) | |
267 | ||
268 | #define CFG_OR0_PRELIM (CFG_OR_AM | CFG_OR_ATM | CFG_OR_TIMING_FLASH) | |
269 | #define CFG_BR0_PRELIM ((FLASH_BASE0 & BR_BA_MSK) | BR_PS_16 | BR_V ) | |
270 | ||
271 | /* | |
272 | * BR2 and OR2 (SDRAM) | |
273 | * | |
274 | */ | |
275 | #define SDRAM_BASE2 0x00000000 /* SDRAM bank #0 */ | |
276 | #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */ | |
277 | ||
278 | /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */ | |
279 | #define CFG_OR_TIMING_SDRAM ( 0x00000800 ) | |
280 | ||
281 | #define CFG_OR2_PRELIM (CFG_OR_AM | CFG_OR_TIMING_SDRAM) | |
282 | #define CFG_BR2_PRELIM ((SDRAM_BASE2 & BR_BA_MSK) | BR_MS_UPMA | BR_V ) | |
283 | ||
284 | #define CFG_BR2 CFG_BR2_PRELIM | |
285 | #define CFG_OR2 CFG_OR2_PRELIM | |
286 | ||
287 | /* | |
288 | * MAMR settings for SDRAM | |
289 | */ | |
290 | #define CFG_MAMR_48_SDR (CFG_MAMR_PTA | MAMR_WLFA_1X | MAMR_RLFA_1X \ | |
291 | | MAMR_G0CLA_A11) | |
292 | ||
293 | /* | |
294 | * Memory Periodic Timer Prescaler | |
295 | */ | |
296 | ||
297 | /* periodic timer for refresh */ | |
298 | #define CFG_MAMR_PTA 0x0F000000 | |
299 | ||
300 | /* | |
301 | * BR4 and OR4 (DSP1) | |
302 | * | |
303 | * We do not wan't preliminary setup of the DSP, anyway we need the | |
304 | * UPMB setup correctly before we can access the DSP. | |
305 | * | |
306 | */ | |
307 | #define DSP_BASE 0x80000000 | |
308 | ||
309 | #define CFG_OR4 ( OR_AM_MSK | OR_CSNT_SAM | OR_BI | OR_G5LS) | |
310 | #define CFG_BR4 ( (DSP_BASE & BR_BA_MSK) | BR_PS_16 | BR_MS_UPMB | BR_V ) | |
311 | ||
312 | /* | |
313 | * Internal Definitions | |
314 | * | |
315 | * Boot Flags | |
316 | */ | |
317 | #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */ | |
318 | #define BOOTFLAG_WARM 0x02 /* Software reboot */ | |
319 | ||
320 | #endif /* __CONFIG_H */ |