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i2c, soft-i2c: switch to new multibus/multiadapter support
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1 /*
2 * (C) Copyright 2001, 2002
3 * Sangmoon Kim, Etin Systems, dogoil@etinsys.com.
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
26 /*
27 * board/config.h - configuration options, board specific
28 */
29
30 #ifndef __CONFIG_H
31 #define __CONFIG_H
32
33 #define CONFIG_SYS_TEXT_BASE 0xFFF00000
34
35 /* Environments */
36
37 /* bootargs */
38 #define CONFIG_BOOTARGS \
39 "console=ttyS0,9600 init=/linuxrc " \
40 "root=/dev/nfs rw nfsroot=192.168.0.1:" \
41 "/tftpboot/target " \
42 "ip=192.168.0.2:192.168.0.1:192.168.0.1:" \
43 "255.255.255.0:debris:eth0:none " \
44 "mtdparts=phys:12m(root),-(kernel)"
45
46 /* bootcmd */
47 #define CONFIG_BOOTCOMMAND \
48 "tftp 800000 pImage; " \
49 "setenv bootargs console=ttyS0,9600 init=/linuxrc " \
50 "root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \
51 "ip=${ipaddr}:${serverip}:${gatewayip}:" \
52 "${netmask}:${hostname}:eth0:none " \
53 "mtdparts=phys:12m(root),-(kernel); " \
54 "bootm 800000"
55
56 /* bootdelay */
57 #define CONFIG_BOOTDELAY 5 /* autoboot 5s */
58
59 /* baudrate */
60 #define CONFIG_BAUDRATE 9600 /* console baudrate = 9600bps */
61
62 /* loads_echo */
63 #define CONFIG_LOADS_ECHO 0 /* echo off for serial download */
64
65 /* ethaddr */
66 #undef CONFIG_ETHADDR
67
68 /* eth2addr */
69 #undef CONFIG_ETH2ADDR
70
71 /* eth3addr */
72 #undef CONFIG_ETH3ADDR
73
74 /* ipaddr */
75 #define CONFIG_IPADDR 192.168.0.2
76
77 /* serverip */
78 #define CONFIG_SERVERIP 192.168.0.1
79
80 /* autoload */
81 #undef CONFIG_SYS_AUTOLOAD
82
83 /* rootpath */
84 #define CONFIG_ROOTPATH "/tftpboot/target"
85
86 /* gatewayip */
87 #define CONFIG_GATEWAYIP 192.168.0.1
88
89 /* netmask */
90 #define CONFIG_NETMASK 255.255.255.0
91
92 /* hostname */
93 #define CONFIG_HOSTNAME debris
94
95 /* bootfile */
96 #define CONFIG_BOOTFILE "pImage"
97
98 /* loadaddr */
99 #define CONFIG_LOADADDR 800000
100
101 /* preboot */
102 #undef CONFIG_PREBOOT
103
104 /* clocks_in_mhz */
105 #undef CONFIG_CLOCKS_IN_MHZ
106
107
108 /*
109 * High Level Configuration Options
110 * (easy to change)
111 */
112
113 #define CONFIG_MPC824X 1
114 #define CONFIG_MPC8245 1
115 #define CONFIG_DEBRIS 1
116
117 #if 0
118 #define USE_DINK32 1
119 #else
120 #undef USE_DINK32
121 #endif
122
123 #define CONFIG_CONS_INDEX 1
124 #define CONFIG_BAUDRATE 9600
125 #define CONFIG_DRAM_SPEED 100 /* MHz */
126
127
128 /*
129 * BOOTP options
130 */
131 #define CONFIG_BOOTP_BOOTFILESIZE
132 #define CONFIG_BOOTP_BOOTPATH
133 #define CONFIG_BOOTP_GATEWAY
134 #define CONFIG_BOOTP_HOSTNAME
135
136
137 /*
138 * Command line configuration.
139 */
140 #include <config_cmd_default.h>
141
142 #define CONFIG_CMD_ASKENV
143 #define CONFIG_CMD_CACHE
144 #define CONFIG_CMD_DATE
145 #define CONFIG_CMD_DHCP
146 #define CONFIG_CMD_DIAG
147 #define CONFIG_CMD_EEPROM
148 #define CONFIG_CMD_ELF
149 #define CONFIG_CMD_I2C
150 #define CONFIG_CMD_JFFS2
151 #define CONFIG_CMD_KGDB
152 #define CONFIG_CMD_PCI
153 #define CONFIG_CMD_PING
154 #define CONFIG_CMD_SAVES
155 #define CONFIG_CMD_SDRAM
156
157
158 /*
159 * Miscellaneous configurable options
160 */
161 #define CONFIG_SYS_LONGHELP 1 /* undef to save memory */
162 #define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
163 #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
164 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
165 #define CONFIG_SYS_MAXARGS 16 /* max number of command args */
166 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
167 #define CONFIG_SYS_LOAD_ADDR 0x00100000 /* default load address */
168 #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
169
170 /*-----------------------------------------------------------------------
171 * PCI stuff
172 *-----------------------------------------------------------------------
173 */
174 #define CONFIG_PCI /* include pci support */
175 #define CONFIG_PCI_INDIRECT_BRIDGE /* indirect PCI bridge support */
176 #define CONFIG_PCI_PNP
177
178 #define CONFIG_EEPRO100
179 #define CONFIG_SYS_RX_ETH_BUFFER 8 /* use 8 rx buffer on eepro100 */
180 #define CONFIG_EEPRO100_SROM_WRITE
181
182 #define PCI_ENET0_IOADDR 0x80000000
183 #define PCI_ENET0_MEMADDR 0x80000000
184 #define PCI_ENET1_IOADDR 0x81000000
185 #define PCI_ENET1_MEMADDR 0x81000000
186 /*-----------------------------------------------------------------------
187 * Start addresses for the final memory configuration
188 * (Set up by the startup code)
189 * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
190 */
191 #define CONFIG_SYS_SDRAM_BASE 0x00000000
192 #define CONFIG_SYS_MAX_RAM_SIZE 0x20000000
193 #define CONFIG_VERY_BIG_RAM
194
195 #define CONFIG_SYS_RESET_ADDRESS 0xFFF00100
196
197 #if defined (USE_DINK32)
198 #define CONFIG_SYS_MONITOR_LEN 0x00040000
199 #define CONFIG_SYS_MONITOR_BASE 0x00090000
200 #define CONFIG_SYS_RAMBOOT 1
201 #define CONFIG_SYS_INIT_RAM_ADDR (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)
202 #define CONFIG_SYS_INIT_RAM_SIZE 0x10000
203 #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
204 #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
205 #else
206 #undef CONFIG_SYS_RAMBOOT
207 #define CONFIG_SYS_MONITOR_LEN 0x00040000
208 #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
209
210
211 #define CONFIG_SYS_INIT_RAM_ADDR 0x40000000
212 #define CONFIG_SYS_INIT_RAM_SIZE 0x1000
213 #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
214
215 #endif
216
217 #define CONFIG_SYS_FLASH_BASE 0x7C000000
218 #define CONFIG_SYS_FLASH_SIZE (16*1024*1024) /* debris has tiny eeprom */
219
220 #define CONFIG_SYS_MALLOC_LEN (512 << 10) /* Reserve 512 kB for malloc() */
221
222 #define CONFIG_SYS_MEMTEST_START 0x00000000 /* memtest works on */
223 #define CONFIG_SYS_MEMTEST_END 0x04000000 /* 0 ... 32 MB in DRAM */
224
225 #define CONFIG_SYS_EUMB_ADDR 0xFC000000
226
227 #define CONFIG_SYS_FLASH_RANGE_BASE 0xFF000000 /* flash memory address range */
228 #define CONFIG_SYS_FLASH_RANGE_SIZE 0x01000000
229 #define FLASH_BASE0_PRELIM 0x7C000000 /* debris flash */
230
231 /*
232 * JFFS2 partitions
233 *
234 */
235 /* No command line, one static partition, whole device */
236 #undef CONFIG_CMD_MTDPARTS
237 #define CONFIG_JFFS2_DEV "nor0"
238 #define CONFIG_JFFS2_PART_SIZE 0xFFFFFFFF
239 #define CONFIG_JFFS2_PART_OFFSET 0x00000000
240
241 /* mtdparts command line support */
242
243 /* Use first bank for JFFS2, second bank contains U-Boot.
244 *
245 * Note: fake mtd_id's used, no linux mtd map file.
246 */
247 /*
248 #define CONFIG_CMD_MTDPARTS
249 #define MTDIDS_DEFAULT "nor0=debris-0"
250 #define MTDPARTS_DEFAULT "mtdparts=debris-0:-(jffs2)"
251 */
252
253 #define CONFIG_ENV_IS_IN_NVRAM 1
254 #define CONFIG_ENV_OVERWRITE 1
255 #define CONFIG_SYS_NVRAM_ACCESS_ROUTINE 1
256 #define CONFIG_ENV_ADDR 0xFF000000 /* right at the start of NVRAM */
257 #define CONFIG_ENV_SIZE 0x400 /* Size of the Environment - 8K */
258 #define CONFIG_ENV_OFFSET 0 /* starting right at the beginning */
259
260 #define CONFIG_SYS_NVRAM_BASE_ADDR 0xff000000
261
262 /*
263 * CONFIG_SYS_NVRAM_BASE_ADDR + CONFIG_SYS_NVRAM_VXWORKS_OFFS =
264 * NV_RAM_ADDRS + NV_BOOT_OFFSET + NV_ENET_OFFSET
265 */
266 #define CONFIG_SYS_NVRAM_VXWORKS_OFFS 0x6900
267
268 /*
269 * select i2c support configuration
270 *
271 * Supported configurations are {none, software, hardware} drivers.
272 * If the software driver is chosen, there are some additional
273 * configuration items that the driver uses to drive the port pins.
274 */
275 #define CONFIG_HARD_I2C 1 /* To enable I2C support */
276 #undef CONFIG_SYS_I2C_SOFT /* I2C bit-banged */
277 #define CONFIG_SYS_I2C_SPEED 400000 /* I2C speed and slave address */
278 #define CONFIG_SYS_I2C_SLAVE 0x7F
279
280 #ifdef CONFIG_SYS_I2C_SOFT
281 #error "Soft I2C is not configured properly. Please review!"
282 #define CONFIG_SYS_I2C
283 #define CONFIG_SYS_I2C_SOFT_SPEED 50000
284 #define CONFIG_SYS_I2C_SOFT_SLAVE 0x7F
285 #define I2C_PORT 3 /* Port A=0, B=1, C=2, D=3 */
286 #define I2C_ACTIVE (iop->pdir |= 0x00010000)
287 #define I2C_TRISTATE (iop->pdir &= ~0x00010000)
288 #define I2C_READ ((iop->pdat & 0x00010000) != 0)
289 #define I2C_SDA(bit) if(bit) iop->pdat |= 0x00010000; \
290 else iop->pdat &= ~0x00010000
291 #define I2C_SCL(bit) if(bit) iop->pdat |= 0x00020000; \
292 else iop->pdat &= ~0x00020000
293 #define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
294 #endif /* CONFIG_SYS_I2C_SOFT */
295
296 #define CONFIG_SYS_I2C_EEPROM_ADDR 0x57 /* EEPROM IS24C02 */
297 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1 /* Bytes of address */
298 #define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 3
299 #define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 10 /* and takes up to 10 msec */
300
301 #define CONFIG_SYS_FLASH_BANKS { FLASH_BASE0_PRELIM }
302
303 /*-----------------------------------------------------------------------
304 * Definitions for initial stack pointer and data area (in DPRAM)
305 */
306
307 /*
308 * NS16550 Configuration
309 */
310 #define CONFIG_SYS_NS16550
311 #define CONFIG_SYS_NS16550_SERIAL
312
313 #define CONFIG_SYS_NS16550_REG_SIZE 1
314
315 #define CONFIG_SYS_NS16550_CLK 7372800
316
317 #define CONFIG_SYS_NS16550_COM1 0xFF080000
318 #define CONFIG_SYS_NS16550_COM2 (CONFIG_SYS_NS16550_COM1 + 8)
319 #define CONFIG_SYS_NS16550_COM3 (CONFIG_SYS_NS16550_COM1 + 16)
320 #define CONFIG_SYS_NS16550_COM4 (CONFIG_SYS_NS16550_COM1 + 24)
321
322 /*
323 * Low Level Configuration Settings
324 * (address mappings, register initial values, etc.)
325 * You should know what you are doing if you make changes here.
326 */
327
328 #define CONFIG_SYS_CLK_FREQ 33333333 /* external frequency to pll */
329 #define CONFIG_PLL_PCI_TO_MEM_MULTIPLIER 3
330
331 #define CONFIG_SYS_DLL_EXTEND 0x00
332 #define CONFIG_SYS_PCI_HOLD_DEL 0x20
333
334 #define CONFIG_SYS_ROMNAL 15 /* rom/flash next access time */
335 #define CONFIG_SYS_ROMFAL 31 /* rom/flash access time */
336
337 #define CONFIG_SYS_REFINT 430 /* # of clocks between CBR refresh cycles */
338
339 #define CONFIG_SYS_DBUS_SIZE2 1 /* set for 8-bit RCS1, clear for 32,64 */
340
341 /* the following are for SDRAM only*/
342 #define CONFIG_SYS_BSTOPRE 121 /* Burst To Precharge, sets open page interval */
343 #define CONFIG_SYS_REFREC 8 /* Refresh to activate interval */
344 #define CONFIG_SYS_RDLAT 4 /* data latency from read command */
345 #define CONFIG_SYS_PRETOACT 3 /* Precharge to activate interval */
346 #define CONFIG_SYS_ACTTOPRE 5 /* Activate to Precharge interval */
347 #define CONFIG_SYS_ACTORW 3 /* Activate to R/W */
348 #define CONFIG_SYS_SDMODE_CAS_LAT 3 /* SDMODE CAS latency */
349 #define CONFIG_SYS_SDMODE_WRAP 0 /* SDMODE wrap type */
350 #if 0
351 #define CONFIG_SYS_SDMODE_BURSTLEN 2 /* OBSOLETE! SDMODE Burst length 2=4, 3=8 */
352 #endif
353
354 #define CONFIG_SYS_REGISTERD_TYPE_BUFFER 1
355 #define CONFIG_SYS_EXTROM 1
356 #define CONFIG_SYS_REGDIMM 0
357
358
359 /* memory bank settings*/
360 /*
361 * only bits 20-29 are actually used from these vales to set the
362 * start/end address the upper two bits will be 0, and the lower 20
363 * bits will be set to 0x00000 for a start address, or 0xfffff for an
364 * end address
365 */
366 #define CONFIG_SYS_BANK0_START 0x00000000
367 #define CONFIG_SYS_BANK0_END (0x4000000 - 1)
368 #define CONFIG_SYS_BANK0_ENABLE 1
369 #define CONFIG_SYS_BANK1_START 0x04000000
370 #define CONFIG_SYS_BANK1_END (0x8000000 - 1)
371 #define CONFIG_SYS_BANK1_ENABLE 1
372 #define CONFIG_SYS_BANK2_START 0x3ff00000
373 #define CONFIG_SYS_BANK2_END 0x3fffffff
374 #define CONFIG_SYS_BANK2_ENABLE 0
375 #define CONFIG_SYS_BANK3_START 0x3ff00000
376 #define CONFIG_SYS_BANK3_END 0x3fffffff
377 #define CONFIG_SYS_BANK3_ENABLE 0
378 #define CONFIG_SYS_BANK4_START 0x00000000
379 #define CONFIG_SYS_BANK4_END 0x00000000
380 #define CONFIG_SYS_BANK4_ENABLE 0
381 #define CONFIG_SYS_BANK5_START 0x00000000
382 #define CONFIG_SYS_BANK5_END 0x00000000
383 #define CONFIG_SYS_BANK5_ENABLE 0
384 #define CONFIG_SYS_BANK6_START 0x00000000
385 #define CONFIG_SYS_BANK6_END 0x00000000
386 #define CONFIG_SYS_BANK6_ENABLE 0
387 #define CONFIG_SYS_BANK7_START 0x00000000
388 #define CONFIG_SYS_BANK7_END 0x00000000
389 #define CONFIG_SYS_BANK7_ENABLE 0
390 /*
391 * Memory bank enable bitmask, specifying which of the banks defined above
392 are actually present. MSB is for bank #7, LSB is for bank #0.
393 */
394 #define CONFIG_SYS_BANK_ENABLE 0x01
395
396 #define CONFIG_SYS_ODCR 0x75 /* configures line driver impedances, */
397 /* see 8240 book for bit definitions */
398 #define CONFIG_SYS_PGMAX 0x32 /* how long the 8240 retains the */
399 /* currently accessed page in memory */
400 /* see 8240 book for details */
401
402 /* SDRAM 0 - 256MB */
403 #define CONFIG_SYS_IBAT0L (CONFIG_SYS_SDRAM_BASE | BATL_PP_10 | BATL_MEMCOHERENCE)
404 #define CONFIG_SYS_IBAT0U (CONFIG_SYS_SDRAM_BASE | BATU_BL_256M | BATU_VS | BATU_VP)
405
406 /* stack in DCACHE @ 1GB (no backing mem) */
407 #if defined(USE_DINK32)
408 #define CONFIG_SYS_IBAT1L (0x40000000 | BATL_PP_00 )
409 #define CONFIG_SYS_IBAT1U (0x40000000 | BATU_BL_128K )
410 #else
411 #define CONFIG_SYS_IBAT1L (CONFIG_SYS_INIT_RAM_ADDR | BATL_PP_10 | BATL_MEMCOHERENCE)
412 #define CONFIG_SYS_IBAT1U (CONFIG_SYS_INIT_RAM_ADDR | BATU_BL_128K | BATU_VS | BATU_VP)
413 #endif
414
415 /* PCI memory */
416 #define CONFIG_SYS_IBAT2L (0x80000000 | BATL_PP_10 | BATL_CACHEINHIBIT)
417 #define CONFIG_SYS_IBAT2U (0x80000000 | BATU_BL_256M | BATU_VS | BATU_VP)
418
419 /* Flash, config addrs, etc */
420 #define CONFIG_SYS_IBAT3L (0xF0000000 | BATL_PP_10 | BATL_CACHEINHIBIT)
421 #define CONFIG_SYS_IBAT3U (0xF0000000 | BATU_BL_256M | BATU_VS | BATU_VP)
422
423 #define CONFIG_SYS_DBAT0L CONFIG_SYS_IBAT0L
424 #define CONFIG_SYS_DBAT0U CONFIG_SYS_IBAT0U
425 #define CONFIG_SYS_DBAT1L CONFIG_SYS_IBAT1L
426 #define CONFIG_SYS_DBAT1U CONFIG_SYS_IBAT1U
427 #define CONFIG_SYS_DBAT2L CONFIG_SYS_IBAT2L
428 #define CONFIG_SYS_DBAT2U CONFIG_SYS_IBAT2U
429 #define CONFIG_SYS_DBAT3L CONFIG_SYS_IBAT3L
430 #define CONFIG_SYS_DBAT3U CONFIG_SYS_IBAT3U
431
432 /*
433 * For booting Linux, the board info and command line data
434 * have to be in the first 8 MB of memory, since this is
435 * the maximum mapped by the Linux kernel during initialization.
436 */
437 #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
438 /*-----------------------------------------------------------------------
439 * FLASH organization
440 */
441 #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
442 #define CONFIG_SYS_MAX_FLASH_SECT 256 /* max number of sectors on one chip */
443
444 #define CONFIG_SYS_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
445 #define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
446
447 /*-----------------------------------------------------------------------
448 * Cache Configuration
449 */
450 #define CONFIG_SYS_CACHELINE_SIZE 32 /* For MPC8240 CPU */
451 #if defined(CONFIG_CMD_KGDB)
452 # define CONFIG_SYS_CACHELINE_SHIFT 5 /* log base 2 of the above value */
453 #endif
454
455 /* values according to the manual */
456
457 #define CONFIG_DRAM_50MHZ 1
458 #define CONFIG_SDRAM_50MHZ
459
460 #define CONFIG_DISK_SPINUP_TIME 1000000
461
462 #endif /* __CONFIG_H */