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i2c, multibus: get rid of CONFIG_I2C_MUX
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1 /*
2 * (C) Copyright 2001-2005
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 #include <mpc8xx_irq.h>
32
33 /*
34 * High Level Configuration Options
35 * (easy to change)
36 */
37 #define CONFIG_MPC860 1
38 #define CONFIG_MPC860T 1
39 #define CONFIG_ICU862 1
40 #define CONFIG_MPC862 1
41
42 #define CONFIG_SYS_TEXT_BASE 0x40F00000
43
44 #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
45 #undef CONFIG_8xx_CONS_SMC2
46 #undef CONFIG_8xx_CONS_NONE
47 #define CONFIG_BAUDRATE 9600
48 #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
49
50 #ifdef CONFIG_100MHz
51 #define MPC8XX_FACT 24 /* Multiply by 24 */
52 #define MPC8XX_XIN 4165000 /* 4.165 MHz in */
53 #define CONFIG_8xx_GCLK_FREQ (MPC8XX_FACT * MPC8XX_XIN)
54 /* define if cant' use get_gclk_freq */
55 #else
56 #if 1 /* for 50MHz version of processor */
57 #define MPC8XX_FACT 12 /* Multiply by 12 */
58 #define MPC8XX_XIN 4000000 /* 4 MHz in */
59 #define CONFIG_8xx_GCLK_FREQ 48000000 /* define if cant use get_gclk_freq */
60 #else /* for 80MHz version of processor */
61 #define MPC8XX_FACT 20 /* Multiply by 20 */
62 #define MPC8XX_XIN 4000000 /* 4 MHz in */
63 #define CONFIG_8xx_GCLK_FREQ 80000000 /* define if cant use get_gclk_freq */
64 #endif
65 #endif
66
67 #if 0
68 #define CONFIG_BOOTDELAY -1 /* autoboot disabled */
69 #else
70 #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
71 #endif
72
73 #define CONFIG_PREBOOT "echo;echo Type \\\"run flash_nfs\\\" to mount root filesystem over NFS;echo"
74
75 #undef CONFIG_BOOTARGS
76 #define CONFIG_BOOTCOMMAND \
77 "bootp;" \
78 "setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \
79 "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off;" \
80 "bootm"
81
82 #undef CONFIG_WATCHDOG /* watchdog disabled */
83
84 #define CONFIG_STATUS_LED 1 /* Status LED enabled */
85
86 /*
87 * BOOTP options
88 */
89 #define CONFIG_BOOTP_SUBNETMASK
90 #define CONFIG_BOOTP_GATEWAY
91 #define CONFIG_BOOTP_HOSTNAME
92 #define CONFIG_BOOTP_BOOTPATH
93 #define CONFIG_BOOTP_BOOTFILESIZE
94
95
96 #undef CONFIG_SCC1_ENET /* disable SCC1 ethernet */
97 #define CONFIG_FEC_ENET 1 /* use FEC ethernet */
98 #define CONFIG_MII 1
99 #if 1
100 #define CONFIG_SYS_DISCOVER_PHY 1
101 #else
102 #undef CONFIG_SYS_DISCOVER_PHY
103 #endif
104
105 #define CONFIG_MAC_PARTITION
106 #define CONFIG_DOS_PARTITION
107
108 /* enable I2C and select the hardware/software driver */
109 #define CONFIG_SYS_I2C
110 #define CONFIG_SYS_I2C_SOFT /* I2C bit-banged */
111 #define CONFIG_SYS_I2C_SOFT_SPEED 50000
112 #define CONFIG_SYS_I2C_SOFT_SLAVE 0xFE
113 /*
114 * Software (bit-bang) I2C driver configuration
115 */
116 #define PB_SCL 0x00000020 /* PB 26 */
117 #define PB_SDA 0x00000010 /* PB 27 */
118
119 #define I2C_INIT (immr->im_cpm.cp_pbdir |= PB_SCL)
120 #define I2C_ACTIVE (immr->im_cpm.cp_pbdir |= PB_SDA)
121 #define I2C_TRISTATE (immr->im_cpm.cp_pbdir &= ~PB_SDA)
122 #define I2C_READ ((immr->im_cpm.cp_pbdat & PB_SDA) != 0)
123 #define I2C_SDA(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SDA; \
124 else immr->im_cpm.cp_pbdat &= ~PB_SDA
125 #define I2C_SCL(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SCL; \
126 else immr->im_cpm.cp_pbdat &= ~PB_SCL
127 #define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
128
129 #define CONFIG_SYS_EEPROM_X40430 /* Use a Xicor X40430 EEPROM */
130 #define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 4 /* 16 bytes page write mode */
131
132 #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */
133
134 #define CONFIG_SYS_I2C_EEPROM_ADDR 0x50
135 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1 /* Bytes of address */
136
137
138 /*
139 * Command line configuration.
140 */
141 #include <config_cmd_default.h>
142
143 #define CONFIG_CMD_ASKENV
144 #define CONFIG_CMD_DATE
145 #define CONFIG_CMD_DHCP
146 #define CONFIG_CMD_EEPROM
147 #define CONFIG_CMD_I2C
148 #define CONFIG_CMD_IDE
149 #define CONFIG_CMD_NFS
150 #define CONFIG_CMD_SNTP
151
152
153 /*
154 * Miscellaneous configurable options
155 */
156 #define CONFIG_SYS_LONGHELP /* undef to save memory */
157 #define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
158 #if defined(CONFIG_CMD_KGDB)
159 #define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
160 #else
161 #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
162 #endif
163 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
164 #define CONFIG_SYS_MAXARGS 16 /* max number of command args */
165 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
166
167 #define CONFIG_SYS_MEMTEST_START 0x0100000 /* memtest works on */
168 #define CONFIG_SYS_MEMTEST_END 0x0400000 /* 1 ... 4 MB in DRAM */
169
170 #define CONFIG_SYS_LOAD_ADDR 0x00100000
171
172 #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
173
174 /*
175 * Low Level Configuration Settings
176 * (address mappings, register initial values, etc.)
177 * You should know what you are doing if you make changes here.
178 */
179 /*-----------------------------------------------------------------------
180 * Internal Memory Mapped Register
181 */
182 #define CONFIG_SYS_IMMR 0xF0000000
183 #define CONFIG_SYS_IMMR_SIZE ((uint)(64 * 1024))
184
185 /*-----------------------------------------------------------------------
186 * Definitions for initial stack pointer and data area (in DPRAM)
187 */
188 #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
189 #define CONFIG_SYS_INIT_RAM_SIZE 0x2F00 /* Size of used area in DPRAM */
190 #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
191 #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
192
193 /*-----------------------------------------------------------------------
194 * Start addresses for the final memory configuration
195 * (Set up by the startup code)
196 * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
197 */
198 #define CONFIG_SYS_SDRAM_BASE 0x00000000
199 #define CONFIG_SYS_FLASH_BASE 0x40000000
200 #define CONFIG_SYS_FLASH_SIZE ((uint)(16 * 1024 * 1024)) /* max 16Mbyte */
201
202 #define CONFIG_SYS_RESET_ADDRESS 0xFFF00100
203
204 #if 0
205 #if defined(DEBUG)
206 #define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
207 #else
208 #define CONFIG_SYS_MONITOR_LEN (192 << 10) /* Reserve 192 kB for Monitor */
209 #endif
210 #else
211 #define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
212 #endif
213 #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
214 #define CONFIG_SYS_MALLOC_LEN (256 << 10) /* Reserve 256 kB for malloc() */
215
216 /*
217 * For booting Linux, the board info and command line data
218 * have to be in the first 8 MB of memory, since this is
219 * the maximum mapped by the Linux kernel during initialization.
220 */
221 #define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
222 /*-----------------------------------------------------------------------
223 * FLASH organization
224 */
225 #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
226 #define CONFIG_SYS_MAX_FLASH_SECT 64 /* max number of sectors on one chip */
227
228 #define CONFIG_SYS_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
229 #define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
230
231
232 #define CONFIG_ENV_IS_IN_FLASH 1
233 #define CONFIG_ENV_OFFSET 0x00F40000
234
235 #define CONFIG_ENV_SECT_SIZE 0x40000 /* Total Size of Environment sector */
236 #define CONFIG_ENV_SIZE 0x4000 /* Used Size of Environment Sector */
237 #define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */
238
239 /*-----------------------------------------------------------------------
240 * Cache Configuration
241 */
242 #define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
243 #if defined(CONFIG_CMD_KGDB)
244 #define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */
245 #endif
246
247 /*-----------------------------------------------------------------------
248 * SYPCR - System Protection Control 11-9
249 * SYPCR can only be written once after reset!
250 *-----------------------------------------------------------------------
251 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
252 */
253 #if defined(CONFIG_WATCHDOG)
254 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
255 SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
256 #else
257 #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
258 #endif
259
260 /*-----------------------------------------------------------------------
261 * SIUMCR - SIU Module Configuration 11-6
262 *-----------------------------------------------------------------------
263 * PCMCIA config., multi-function pin tri-state
264 */
265 #define CONFIG_SYS_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
266
267 /*-----------------------------------------------------------------------
268 * TBSCR - Time Base Status and Control 11-26
269 *-----------------------------------------------------------------------
270 * Clear Reference Interrupt Status, Timebase freezing enabled
271 */
272 #define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBE)
273
274 /*-----------------------------------------------------------------------
275 * PISCR - Periodic Interrupt Status and Control 11-31
276 *-----------------------------------------------------------------------
277 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
278 */
279 #define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF)
280
281 /*-----------------------------------------------------------------------
282 * PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
283 *-----------------------------------------------------------------------
284 * set the PLL, the low-power modes and the reset control (15-29)
285 */
286 #define CONFIG_SYS_PLPRCR (((MPC8XX_FACT-1) << PLPRCR_MF_SHIFT) | \
287 PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
288
289 /*-----------------------------------------------------------------------
290 * SCCR - System Clock and reset Control Register 15-27
291 *-----------------------------------------------------------------------
292 * Set clock output, timebase and RTC source and divider,
293 * power management and some other internal clocks
294 */
295 #ifdef CONFIG_100MHz /* for 100 MHz, external bus is half CPU clock */
296 #define SCCR_MASK 0
297 #define CONFIG_SYS_SCCR (SCCR_TBS | SCCR_COM00 | SCCR_DFSYNC00 | \
298 SCCR_DFBRG00 | SCCR_DFNL000 | SCCR_DFNH000 | \
299 SCCR_DFLCD000 |SCCR_DFALCD00 | SCCR_EBDF01)
300 #else /* up to 50 MHz we use a 1:1 clock */
301 #define SCCR_MASK SCCR_EBDF11
302 #define CONFIG_SYS_SCCR (SCCR_TBS | SCCR_COM00 | SCCR_DFSYNC00 | \
303 SCCR_DFBRG00 | SCCR_DFNL000 | SCCR_DFNH000 | \
304 SCCR_DFLCD000 |SCCR_DFALCD00 )
305 #endif /* CONFIG_100MHz */
306
307 /*-----------------------------------------------------------------------
308 * RCCR - RISC Controller Configuration Register 19-4
309 *-----------------------------------------------------------------------
310 */
311 /* +0x09C4 => DRQP = 10 (IDMA requests have lowest priority) */
312 #define CONFIG_SYS_RCCR 0x0020
313
314 /*-----------------------------------------------------------------------
315 * PCMCIA stuff
316 *-----------------------------------------------------------------------
317 */
318 #define CONFIG_SYS_PCMCIA_MEM_ADDR (0xE0000000)
319 #define CONFIG_SYS_PCMCIA_MEM_SIZE ( 64 << 20 )
320 #define CONFIG_SYS_PCMCIA_DMA_ADDR (0xE4000000)
321 #define CONFIG_SYS_PCMCIA_DMA_SIZE ( 64 << 20 )
322 #define CONFIG_SYS_PCMCIA_ATTRB_ADDR (0xE8000000)
323 #define CONFIG_SYS_PCMCIA_ATTRB_SIZE ( 64 << 20 )
324 #define CONFIG_SYS_PCMCIA_IO_ADDR (0xEC000000)
325 #define CONFIG_SYS_PCMCIA_IO_SIZE ( 64 << 20 )
326
327 /*-----------------------------------------------------------------------
328 * PCMCIA Power Switch
329 *
330 * The ICU862 uses a TPS2205 PC-Card Power-Interface Switch to
331 * control the voltages on the PCMCIA slot which is connected to Port B
332 *-----------------------------------------------------------------------
333 */
334 /* Output pins */
335 #define TPS2205_VCC5 0x00008000 /* PB.16: 5V Voltage Control */
336 #define TPS2205_VCC3 0x00004000 /* PB.17: 3V Voltage Control */
337 #define TPS2205_VPP_PGM 0x00002000 /* PB.18: PGM Voltage Control */
338 #define TPS2205_VPP_VCC 0x00001000 /* PB.19: VPP Voltage Control */
339 #define TPS2205_SHDN 0x00000200 /* PB.22: Shutdown */
340 #define TPS2205_OUTPUTS ( TPS2205_VCC5 | TPS2205_VCC3 | \
341 TPS2205_VPP_PGM | TPS2205_VPP_VCC | \
342 TPS2205_SHDN)
343
344 /* Input pins */
345 #define TPS2205_OC 0x00000100 /* PB.23: Over-Current */
346 #define TPS2205_INPUTS ( TPS2205_OC )
347
348 /*-----------------------------------------------------------------------
349 * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
350 *-----------------------------------------------------------------------
351 */
352
353 #define CONFIG_IDE_PREINIT 1 /* Use preinit IDE hook */
354 #define CONFIG_IDE_8xx_PCCARD 1 /* Use IDE with PC Card Adapter */
355
356 #undef CONFIG_IDE_8xx_DIRECT /* Direct IDE not supported */
357 #undef CONFIG_IDE_LED /* LED for ide not supported */
358 #undef CONFIG_IDE_RESET /* reset for ide not supported */
359
360 #define CONFIG_SYS_IDE_MAXBUS 1 /* max. 1 IDE bus */
361 #define CONFIG_SYS_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */
362
363 #define CONFIG_SYS_ATA_IDE0_OFFSET 0x0000
364
365 #define CONFIG_SYS_ATA_BASE_ADDR CONFIG_SYS_PCMCIA_MEM_ADDR
366
367 /* Offset for data I/O */
368 #define CONFIG_SYS_ATA_DATA_OFFSET (CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
369
370 /* Offset for normal register accesses */
371 #define CONFIG_SYS_ATA_REG_OFFSET (2 * CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
372
373 /* Offset for alternate registers */
374 #define CONFIG_SYS_ATA_ALT_OFFSET 0x0100
375
376
377 /*-----------------------------------------------------------------------
378 *
379 *-----------------------------------------------------------------------
380 *
381 */
382 #define CONFIG_SYS_DER 0
383
384 /* Because of the way the 860 starts up and assigns CS0 the
385 * entire address space, we have to set the memory controller
386 * differently. Normally, you write the option register
387 * first, and then enable the chip select by writing the
388 * base register. For CS0, you must write the base register
389 * first, followed by the option register.
390 */
391
392 /*
393 * Init Memory Controller:
394 *
395 * BR0 and OR0 (FLASH)
396 */
397
398 #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
399 #define FLASH_BASE1_PRELIM 0x0 /* FLASH bank #1 */
400
401 #define CONFIG_SYS_REMAP_OR_AM 0x80000000 /* OR addr mask */
402 #define CONFIG_SYS_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
403
404 /* FLASH timing: ACS = 10, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 0 */
405 #define CONFIG_SYS_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV4 | OR_BI | OR_SCY_3_CLK | OR_TRLX)
406
407 #define CONFIG_SYS_OR0_REMAP (CONFIG_SYS_REMAP_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
408
409 #define CONFIG_SYS_OR0_PRELIM 0xFF000954 /* Real values for the board */
410 #define CONFIG_SYS_BR0_PRELIM 0x40000001 /* Real values for the board */
411
412 /*
413 * BR1 and OR1 (SDRAM)
414 */
415 #define SDRAM_BASE1_PRELIM 0x00000000 /* SDRAM bank */
416 #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
417
418 #define CONFIG_SYS_OR_TIMING_SDRAM 0x00000800 /* BIH is not set */
419
420 #define CONFIG_SYS_OR1_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_SDRAM)
421 #define CONFIG_SYS_BR1_PRELIM ((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V)
422
423 /*
424 * Memory Periodic Timer Prescaler
425 */
426
427 /* periodic timer for refresh */
428 #define CONFIG_SYS_MAMR_PTA 97 /* start with divider for 100 MHz */
429
430 /* refresh rate 15.6 us (= 64 ms / 4K = 62.4 / quad bursts) for <= 128 MBit */
431 #define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
432 #define CONFIG_SYS_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
433
434 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
435 #define CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
436 #define CONFIG_SYS_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
437
438 /*
439 * MAMR settings for SDRAM
440 */
441
442 /* 8 column SDRAM */
443 #define CONFIG_SYS_MAMR_8COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
444 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
445 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
446 /* 9 column SDRAM */
447 #define CONFIG_SYS_MAMR_9COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
448 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
449 MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
450
451 #define CONFIG_SYS_MAMR 0x13a01114
452
453 #ifdef CONFIG_MPC860T
454
455 /* Interrupt level assignments.
456 */
457 #define FEC_INTERRUPT SIU_LEVEL1 /* FEC interrupt */
458
459 #endif /* CONFIG_MPC860T */
460
461
462 #endif /* __CONFIG_H */