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0f8c9768 WD |
1 | /* |
2 | * (C) Copyright 2000 | |
3 | * Murray Jensen <[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 | * Config header file for Cogent platform using an MPC8xx CPU module | |
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_MPC8260 1 /* This is an MPC8260 CPU */ | |
37 | #define CONFIG_COGENT 1 /* using Cogent Modular Architecture */ | |
38 | ||
39 | /* Cogent Modular Architecture options */ | |
40 | #define CONFIG_CMA282 1 /* ...on a CMA282 CPU module */ | |
41 | #define CONFIG_CMA111 1 /* ...on a CMA111 motherboard */ | |
42 | ||
43 | /* | |
44 | * select serial console configuration | |
45 | * | |
46 | * if either CONFIG_CONS_ON_SMC or CONFIG_CONS_ON_SCC is selected, then | |
47 | * CONFIG_CONS_INDEX must be set to the channel number (1-2 for SMC, 1-4 | |
48 | * for SCC). | |
49 | * | |
50 | * if CONFIG_CONS_NONE is defined, then the serial console routines must | |
51 | * defined elsewhere (for example, on the cogent platform, there are serial | |
52 | * ports on the motherboard which are used for the serial console - see | |
53 | * cogent/cma101/serial.[ch]). | |
54 | */ | |
55 | #define CONFIG_CONS_ON_SMC /* define if console on SMC */ | |
56 | #undef CONFIG_CONS_ON_SCC /* define if console on SCC */ | |
57 | #undef CONFIG_CONS_NONE /* define if console on something else*/ | |
58 | #define CONFIG_CONS_INDEX 1 /* which serial channel for console */ | |
59 | #undef CONFIG_CONS_USE_EXTC /* SMC/SCC use ext clock not brg_clk */ | |
60 | #define CONFIG_CONS_EXTC_RATE 3686400 /* SMC/SCC ext clk rate in Hz */ | |
61 | #define CONFIG_CONS_EXTC_PINSEL 0 /* pin select 0=CLK3/CLK9,1=CLK5/CLK15*/ | |
62 | ||
63 | /* | |
64 | * select ethernet configuration | |
65 | * | |
66 | * if either CONFIG_ETHER_ON_SCC or CONFIG_ETHER_ON_FCC is selected, then | |
67 | * CONFIG_ETHER_INDEX must be set to the channel number (1-4 for SCC, 1-3 | |
68 | * for FCC) | |
69 | * | |
70 | * if CONFIG_ETHER_NONE is defined, then either the ethernet routines must be | |
71 | * defined elsewhere (as for the console), or CFG_CMD_NET must be removed | |
72 | * from CONFIG_COMMANDS to remove support for networking. | |
73 | */ | |
74 | #undef CONFIG_ETHER_ON_SCC /* define if ether on SCC */ | |
75 | #undef CONFIG_ETHER_ON_FCC /* define if ether on FCC */ | |
76 | #define CONFIG_ETHER_NONE /* define if ether on something else */ | |
77 | #define CONFIG_ETHER_INDEX 1 /* which channel for ether */ | |
78 | ||
79 | /* system clock rate (CLKIN) - equal to the 60x and local bus speed */ | |
80 | #define CONFIG_8260_CLKIN 66666666 /* in Hz */ | |
81 | ||
82 | #if defined(CONFIG_CONS_NONE) || defined(CONFIG_CONS_USE_EXTC) | |
83 | #define CONFIG_BAUDRATE 230400 | |
84 | #else | |
85 | #define CONFIG_BAUDRATE 9600 | |
86 | #endif | |
87 | ||
88 | #define CONFIG_COMMANDS ((CONFIG_CMD_DFL|CFG_CMD_KGDB)&~CFG_CMD_NET) | |
89 | ||
90 | /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ | |
91 | #include <cmd_confdefs.h> | |
92 | ||
93 | #ifdef DEBUG | |
94 | #define CONFIG_BOOTDELAY -1 /* autoboot disabled */ | |
95 | #else | |
96 | #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */ | |
97 | #endif | |
98 | #define CONFIG_BOOTCOMMAND "bootm 04080000 04200000" /* autoboot command*/ | |
99 | ||
100 | #define CONFIG_BOOTARGS "root=/dev/ram rw" | |
101 | ||
102 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) | |
103 | #define CONFIG_KGDB_ON_SMC /* define if kgdb on SMC */ | |
104 | #undef CONFIG_KGDB_ON_SCC /* define if kgdb on SCC */ | |
105 | #undef CONFIG_KGDB_NONE /* define if kgdb on something else */ | |
106 | #define CONFIG_KGDB_INDEX 2 /* which serial channel for kgdb */ | |
107 | #define CONFIG_KGDB_USE_EXTC /* SMC/SCC use ext clock not brg_clk */ | |
108 | #define CONFIG_KGDB_EXTC_RATE 3686400 /* serial ext clk rate in Hz */ | |
109 | #define CONFIG_KGDB_EXTC_PINSEL 0 /* pin select 0=CLK3/CLK9,1=CLK5/CLK15*/ | |
110 | # if defined(CONFIG_KGDB_NONE) || defined(CONFIG_KGDB_USE_EXTC) | |
111 | #define CONFIG_KGDB_BAUDRATE 230400 /* speed to run kgdb serial port at */ | |
112 | # else | |
113 | #define CONFIG_KGDB_BAUDRATE 9600 /* speed to run kgdb serial port at */ | |
114 | # endif | |
115 | #endif | |
116 | ||
117 | #undef CONFIG_WATCHDOG /* disable platform specific watchdog */ | |
118 | ||
119 | /* | |
120 | * Miscellaneous configurable options | |
121 | */ | |
122 | #define CFG_LONGHELP /* undef to save memory */ | |
123 | #define CFG_PROMPT "=> " /* Monitor Command Prompt */ | |
124 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) | |
125 | #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */ | |
126 | #else | |
127 | #define CFG_CBSIZE 256 /* Console I/O Buffer Size */ | |
128 | #endif | |
129 | #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */ | |
130 | #define CFG_MAXARGS 16 /* max number of command args */ | |
131 | #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */ | |
132 | ||
133 | #define CFG_MEMTEST_START 0x00400000 /* memtest works on */ | |
134 | #define CFG_MEMTEST_END 0x01c00000 /* 4 ... 28 MB in DRAM */ | |
135 | ||
136 | #define CFG_LOAD_ADDR 0x100000 /* default load address */ | |
137 | ||
138 | #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */ | |
139 | ||
140 | #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200, 230400 } | |
141 | ||
142 | /* | |
143 | * Low Level Configuration Settings | |
144 | * (address mappings, register initial values, etc.) | |
145 | * You should know what you are doing if you make changes here. | |
146 | */ | |
147 | ||
148 | /*----------------------------------------------------------------------- | |
149 | * Low Level Cogent settings | |
150 | * if CFG_CMA_CONS_SERIAL is defined, make sure the 8260 CPM serial is not. | |
151 | * also, make sure CONFIG_CONS_INDEX is still defined - the index will be | |
152 | * 1 for serialA, 2 for serialB, 3 for ser2A, 4 for ser2B | |
153 | * (second 2 for CMA120 only) | |
154 | */ | |
155 | #define CFG_CMA_MB_BASE 0x00000000 /* base of m/b address space */ | |
156 | ||
157 | #include <configs/cogent_common.h> | |
158 | ||
159 | #ifdef CONFIG_CONS_NONE | |
160 | #define CFG_CMA_CONS_SERIAL /* use Cogent motherboard serial for console */ | |
161 | #endif | |
162 | #define CFG_CMA_LCD_HEARTBEAT /* define for sec rotator in lcd corner */ | |
163 | ||
164 | #if (CMA_MB_CAPS & CMA_MB_CAP_FLASH) | |
165 | /* | |
166 | * flash exists on the motherboard | |
167 | * set these four according to TOP dipsw: | |
168 | * TOP on => ..._FLLOW_... (boot EPROM space is high so FLASH is low ) | |
169 | * TOP off => ..._FLHIGH_... (boot EPROM space is low so FLASH is high) | |
170 | */ | |
171 | #define CMA_MB_FLASH_EXEC_BASE CMA_MB_FLLOW_EXEC_BASE | |
172 | #define CMA_MB_FLASH_EXEC_SIZE CMA_MB_FLLOW_EXEC_SIZE | |
173 | #define CMA_MB_FLASH_RDWR_BASE CMA_MB_FLLOW_RDWR_BASE | |
174 | #define CMA_MB_FLASH_RDWR_SIZE CMA_MB_FLLOW_RDWR_SIZE | |
175 | #endif | |
176 | #define CMA_MB_FLASH_BASE CMA_MB_FLASH_EXEC_BASE | |
177 | #define CMA_MB_FLASH_SIZE CMA_MB_FLASH_EXEC_SIZE | |
178 | ||
179 | /*----------------------------------------------------------------------- | |
180 | * Hard Reset Configuration Words | |
181 | * | |
182 | * if you change bits in the HRCW, you must also change the CFG_* | |
183 | * defines for the various registers affected by the HRCW e.g. changing | |
184 | * HRCW_DPPCxx requires you to also change CFG_SIUMCR. | |
185 | */ | |
186 | #define CFG_HRCW_MASTER (HRCW_EBM|HRCW_BPS10|HRCW_L2CPC10|HRCW_DPPC11|\ | |
187 | HRCW_ISB100|HRCW_MMR11|HRCW_MODCK_H0101) | |
188 | /* no slaves so just duplicate the master hrcw */ | |
189 | #define CFG_HRCW_SLAVE1 CFG_HRCW_MASTER | |
190 | #define CFG_HRCW_SLAVE2 CFG_HRCW_MASTER | |
191 | #define CFG_HRCW_SLAVE3 CFG_HRCW_MASTER | |
192 | #define CFG_HRCW_SLAVE4 CFG_HRCW_MASTER | |
193 | #define CFG_HRCW_SLAVE5 CFG_HRCW_MASTER | |
194 | #define CFG_HRCW_SLAVE6 CFG_HRCW_MASTER | |
195 | #define CFG_HRCW_SLAVE7 CFG_HRCW_MASTER | |
196 | ||
197 | /*----------------------------------------------------------------------- | |
198 | * Internal Memory Mapped Register | |
199 | */ | |
200 | #define CFG_IMMR 0xF0000000 | |
201 | ||
202 | /*----------------------------------------------------------------------- | |
203 | * Definitions for initial stack pointer and data area (in DPRAM) | |
204 | */ | |
205 | #define CFG_INIT_RAM_ADDR CFG_IMMR | |
206 | #define CFG_INIT_RAM_END 0x4000 /* End of used area in DPRAM */ | |
207 | #define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */ | |
208 | #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) | |
209 | #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET | |
210 | ||
211 | /*----------------------------------------------------------------------- | |
212 | * Start addresses for the final memory configuration | |
213 | * (Set up by the startup code) | |
214 | * Please note that CFG_SDRAM_BASE _must_ start at 0 | |
215 | */ | |
216 | #define CFG_SDRAM_BASE CMA_MB_RAM_BASE | |
217 | #ifdef CONFIG_CMA302 | |
218 | #define CFG_FLASH_BASE CMA_MB_SLOT2_BASE /* cma302 in slot 2 */ | |
219 | #else | |
220 | #define CFG_FLASH_BASE CMA_MB_FLASH_BASE /* flash on m/b */ | |
221 | #endif | |
222 | #define CFG_MONITOR_BASE TEXT_BASE | |
223 | #define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */ | |
224 | #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc()*/ | |
225 | ||
226 | /* | |
227 | * For booting Linux, the board info and command line data | |
228 | * have to be in the first 8 MB of memory, since this is | |
229 | * the maximum mapped by the Linux kernel during initialization. | |
230 | */ | |
231 | #define CFG_BOOTMAPSZ (8 << 20) /* Initial Mem map for Linux*/ | |
232 | ||
233 | /*----------------------------------------------------------------------- | |
234 | * FLASH organization | |
235 | */ | |
236 | #define CFG_MAX_FLASH_BANKS 2 /* max num of memory banks */ | |
237 | #define CFG_MAX_FLASH_SECT 67 /* max num of sects on one chip */ | |
238 | ||
239 | #define CFG_FLASH_ERASE_TOUT 120000 /* Flash Erase Timeout (in ms) */ | |
240 | #define CFG_FLASH_WRITE_TOUT 500 /* Flash Write Timeout (in ms) */ | |
241 | ||
242 | #define CFG_ENV_IS_IN_FLASH 1 | |
243 | #define CFG_ENV_ADDR CFG_FLASH_BASE /* Addr of Environment Sector */ | |
244 | #ifdef CONFIG_CMA302 | |
245 | #define CFG_ENV_SIZE 0x1000 /* Total Size of Environment Sector */ | |
246 | #define CFG_ENV_SECT_SIZE (512*1024) /* see README - env sect real size */ | |
247 | #else | |
248 | #define CFG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */ | |
249 | #endif | |
250 | ||
251 | /*----------------------------------------------------------------------- | |
252 | * Cache Configuration | |
253 | */ | |
254 | #define CFG_CACHELINE_SIZE 32 /* For MPC8260 CPU */ | |
255 | #if (CONFIG_COMMANDS & CFG_CMD_KGDB) | |
256 | # define CFG_CACHELINE_SHIFT 5 /* log base 2 of the above value*/ | |
257 | #endif | |
258 | ||
259 | /*----------------------------------------------------------------------- | |
260 | * HIDx - Hardware Implementation-dependent Registers 2-11 | |
261 | *----------------------------------------------------------------------- | |
262 | * HID0 also contains cache control - initially enable both caches and | |
263 | * invalidate contents, then the final state leaves only the instruction | |
264 | * cache enabled. Note that Power-On and Hard reset invalidate the caches, | |
265 | * but Soft reset does not. | |
266 | * | |
267 | * HID1 has only read-only information - nothing to set. | |
268 | */ | |
269 | #define CFG_HID0_INIT (HID0_ICE|HID0_DCE|HID0_ICFI|HID0_DCI|\ | |
270 | HID0_IFEM|HID0_ABE) | |
271 | #define CFG_HID0_FINAL (HID0_ICE|HID0_IFEM|HID0_ABE) | |
272 | #define CFG_HID2 0 | |
273 | ||
274 | /*----------------------------------------------------------------------- | |
275 | * RMR - Reset Mode Register 5-5 | |
276 | *----------------------------------------------------------------------- | |
277 | * turn on Checkstop Reset Enable | |
278 | */ | |
279 | #define CFG_RMR RMR_CSRE | |
280 | ||
281 | /*----------------------------------------------------------------------- | |
282 | * BCR - Bus Configuration 4-25 | |
283 | *----------------------------------------------------------------------- | |
284 | */ | |
285 | #define CFG_BCR BCR_EBM | |
286 | ||
287 | /*----------------------------------------------------------------------- | |
288 | * SIUMCR - SIU Module Configuration 4-31 | |
289 | *----------------------------------------------------------------------- | |
290 | */ | |
291 | #define CFG_SIUMCR (SIUMCR_DPPC11|SIUMCR_L2CPC10|SIUMCR_MMR11) | |
292 | ||
293 | /*----------------------------------------------------------------------- | |
294 | * SYPCR - System Protection Control 4-35 | |
295 | * SYPCR can only be written once after reset! | |
296 | *----------------------------------------------------------------------- | |
297 | * Watchdog & Bus Monitor Timer max, 60x Bus Monitor enable | |
298 | */ | |
299 | #if defined(CONFIG_WATCHDOG) | |
300 | #define CFG_SYPCR (SYPCR_SWTC|SYPCR_BMT|SYPCR_PBME|SYPCR_LBME|\ | |
301 | SYPCR_SWRI|SYPCR_SWP|SYPCR_SWE) | |
302 | #else | |
303 | #define CFG_SYPCR (SYPCR_SWTC|SYPCR_BMT|SYPCR_PBME|SYPCR_LBME|\ | |
304 | SYPCR_SWRI|SYPCR_SWP) | |
305 | #endif /* CONFIG_WATCHDOG */ | |
306 | ||
307 | /*----------------------------------------------------------------------- | |
308 | * TMCNTSC - Time Counter Status and Control 4-40 | |
309 | *----------------------------------------------------------------------- | |
310 | * Clear once per Second and Alarm Interrupt Status, Set 32KHz timersclk, | |
311 | * and enable Time Counter | |
312 | */ | |
313 | #define CFG_TMCNTSC (TMCNTSC_SEC|TMCNTSC_ALR|TMCNTSC_TCF|TMCNTSC_TCE) | |
314 | ||
315 | /*----------------------------------------------------------------------- | |
316 | * PISCR - Periodic Interrupt Status and Control 4-42 | |
317 | *----------------------------------------------------------------------- | |
318 | * Clear Periodic Interrupt Status, Set 32KHz timersclk, and enable | |
319 | * Periodic timer | |
320 | */ | |
321 | #define CFG_PISCR (PISCR_PS|PISCR_PTF|PISCR_PTE) | |
322 | ||
323 | /*----------------------------------------------------------------------- | |
324 | * SCCR - System Clock Control 9-8 | |
325 | *----------------------------------------------------------------------- | |
326 | * Ensure DFBRG is Divide by 16 | |
327 | */ | |
328 | #define CFG_SCCR (SCCR_DFBRG01) | |
329 | ||
330 | /*----------------------------------------------------------------------- | |
331 | * RCCR - RISC Controller Configuration 13-7 | |
332 | *----------------------------------------------------------------------- | |
333 | */ | |
334 | #define CFG_RCCR 0 | |
335 | ||
336 | #if defined(CONFIG_CMA282) | |
337 | ||
338 | /* | |
339 | * Init Memory Controller: | |
340 | * | |
341 | * According to the Cogent manual, only CS0 and CS2 are used - CS0 for EPROM | |
342 | * and CS2 for (optional) local bus RAM on the CPU module. | |
343 | * | |
344 | * Note the motherboard address space (256 Mbyte in size) is connected | |
345 | * to the 60x Bus and is located starting at address 0. The Hard Reset | |
346 | * Configuration Word should put the 60x Bus into External Bus Mode, since | |
347 | * we dont set up any memory controller maps for it (see BCR[EBM], 4-26). | |
348 | * | |
349 | * (the *_SIZE vars must be a power of 2) | |
350 | */ | |
351 | ||
352 | #define CFG_CMA_CS0_BASE TEXT_BASE /* EPROM */ | |
353 | #define CFG_CMA_CS0_SIZE (1 << 20) | |
354 | #if 0 | |
355 | #define CFG_CMA_CS2_BASE 0x10000000 /* Local Bus SDRAM */ | |
356 | #define CFG_CMA_CS2_SIZE (16 << 20) | |
357 | #endif | |
358 | ||
359 | /* | |
360 | * CS0 maps the EPROM on the cpu module | |
361 | * Set it for 10 wait states, address CFG_MONITOR_BASE and size 1M | |
362 | * | |
363 | * Note: We must have already transferred control to the final location | |
364 | * of the EPROM before these are used, because when BR0/OR0 are set, the | |
365 | * mirror of the eprom at any other addresses will disappear. | |
366 | */ | |
367 | ||
368 | /* base address = CFG_CMA_CS0_BASE, 16-bit, no parity, r/o, gpcm (60x bus) */ | |
369 | #define CFG_BR0_PRELIM ((CFG_CMA_CS0_BASE&BRx_BA_MSK)|BRx_PS_16|BRx_WP|BRx_V) | |
370 | /* mask size CFG_CMA_CS0_SIZE, csneg 1/4 early, adr-to-cs 1/2, 10-wait states */ | |
371 | #define CFG_OR0_PRELIM (P2SZ_TO_AM(CFG_CMA_CS0_SIZE)|\ | |
372 | ORxG_CSNT|ORxG_ACS_DIV2|ORxG_SCY_10_CLK) | |
373 | ||
374 | /* | |
375 | * CS2 enables the Local Bus SDRAM on the CPU Module | |
376 | * | |
377 | * Will leave this unset for the moment, because a) my CPU module has no | |
378 | * SDRAM installed (it is optional); and b) it will require programming | |
379 | * one of the UPMs in SDRAM mode - not a trivial job, and hard to get right | |
380 | * if you can't test it. | |
381 | */ | |
382 | ||
383 | #if 0 | |
384 | /* base address = CFG_CMA_CS2_BASE, 32-bit, no parity, ??? */ | |
385 | #define CFG_BR0_PRELIM ((CFG_CMA_CS2_BASE&BRx_BA_MSK)|BRx_PS_32|/*???*/|BRx_V) | |
386 | /* mask size CFG_CMA_CS2_SIZE, CS time normal, ??? */ | |
387 | #define CFG_OR2_PRELIM ((~(CFG_CMA_CS2_SIZE-1)&ORx_AM_MSK)|/*???*/) | |
388 | #endif | |
389 | ||
390 | #endif | |
391 | ||
392 | /* | |
393 | * Internal Definitions | |
394 | * | |
395 | * Boot Flags | |
396 | */ | |
397 | #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH*/ | |
398 | #define BOOTFLAG_WARM 0x02 /* Software reboot */ | |
399 | ||
400 | #endif /* __CONFIG_H */ |