xref: /rk3399_rockchip-uboot/include/configs/MPC8560ADS.h (revision eedcd078fe1434d93b84322c4e14c52f80282a41)
1 /*
2  * Copyright 2004 Freescale Semiconductor.
3  * (C) Copyright 2002,2003 Motorola,Inc.
4  * Xianghua Xiao <X.Xiao@motorola.com>
5  *
6  * See file CREDITS for list of people who contributed to this
7  * project.
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License as
11  * published by the Free Software Foundation; either version 2 of
12  * the License, or (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22  * MA 02111-1307 USA
23  */
24 
25 /*
26  * mpc8560ads board configuration file
27  *
28  * Please refer to doc/README.mpc85xx for more info.
29  *
30  * Make sure you change the MAC address and other network params first,
31  * search for CONFIG_ETHADDR, CONFIG_SERVERIP, etc in this file.
32  */
33 
34 #ifndef __CONFIG_H
35 #define __CONFIG_H
36 
37 /* High Level Configuration Options */
38 #define CONFIG_BOOKE		1	/* BOOKE */
39 #define CONFIG_E500		1	/* BOOKE e500 family */
40 #define CONFIG_MPC85xx		1	/* MPC8540/MPC8560 */
41 #define CONFIG_MPC8560		1	/* MPC8560 specific */
42 #define CONFIG_MPC8560ADS	1	/* MPC8560ADS board specific */
43 
44 #define CONFIG_PCI
45 #define CONFIG_TSEC_ENET 		/* tsec ethernet support */
46 #undef  CONFIG_ETHER_ON_FCC             /* cpm FCC ethernet support */
47 #define CONFIG_ENV_OVERWRITE
48 #define CONFIG_SPD_EEPROM		/* Use SPD EEPROM for DDR setup*/
49 #define CONFIG_DDR_ECC			/* only for ECC DDR module */
50 #define CONFIG_DDR_DLL			/* possible DLL fix needed */
51 #define CONFIG_DDR_2T_TIMING		/* Sets the 2T timing bit */
52 
53 
54 /*
55  * sysclk for MPC85xx
56  *
57  * Two valid values are:
58  *    33000000
59  *    66000000
60  *
61  * Most PCI cards are still 33Mhz, so in the presence of PCI, 33MHz
62  * is likely the desired value here, so that is now the default.
63  * The board, however, can run at 66MHz.  In any event, this value
64  * must match the settings of some switches.  Details can be found
65  * in the README.mpc85xxads.
66  */
67 
68 #ifndef CONFIG_SYS_CLK_FREQ
69 #define CONFIG_SYS_CLK_FREQ	33000000
70 #endif
71 
72 
73 /*
74  * These can be toggled for performance analysis, otherwise use default.
75  */
76 #define CONFIG_L2_CACHE			/* toggle L2 cache */
77 #define CONFIG_BTB			/* toggle branch predition */
78 #define CONFIG_ADDR_STREAMING		/* toggle addr streaming */
79 
80 #define CONFIG_BOARD_EARLY_INIT_F	1	/* Call board_pre_init */
81 
82 #define CFG_INIT_DBCR DBCR_IDM		/* Enable Debug Exceptions */
83 
84 #undef	CFG_DRAM_TEST			/* memory test, takes time */
85 #define CFG_MEMTEST_START	0x00200000	/* memtest region */
86 #define CFG_MEMTEST_END		0x00400000
87 
88 
89 /*
90  * Base addresses -- Note these are effective addresses where the
91  * actual resources get mapped (not physical addresses)
92  */
93 #define CFG_CCSRBAR_DEFAULT 	0xff700000	/* CCSRBAR Default */
94 #define CFG_CCSRBAR		0xe0000000	/* relocated CCSRBAR */
95 #define CFG_IMMR		CFG_CCSRBAR	/* PQII uses CFG_IMMR */
96 
97 
98 /*
99  * DDR Setup
100  */
101 #define CFG_DDR_SDRAM_BASE	0x00000000	/* DDR is system memory*/
102 #define CFG_SDRAM_BASE		CFG_DDR_SDRAM_BASE
103 
104 #if defined(CONFIG_SPD_EEPROM)
105     /*
106      * Determine DDR configuration from I2C interface.
107      */
108     #define SPD_EEPROM_ADDRESS	0x51		/* DDR DIMM */
109 
110 #else
111     /*
112      * Manually set up DDR parameters
113      */
114     #define CFG_SDRAM_SIZE	128		/* DDR is 128MB */
115     #define CFG_DDR_CS0_BNDS	0x00000007	/* 0-128MB */
116     #define CFG_DDR_CS0_CONFIG	0x80000002
117     #define CFG_DDR_TIMING_1	0x37344321
118     #define CFG_DDR_TIMING_2	0x00000800	/* P9-45,may need tuning */
119     #define CFG_DDR_CONTROL	0xc2000000	/* unbuffered,no DYN_PWR */
120     #define CFG_DDR_MODE	0x00000062	/* DLL,normal,seq,4/2.5 */
121     #define CFG_DDR_INTERVAL	0x05200100	/* autocharge,no open page */
122 #endif
123 
124 
125 /*
126  * SDRAM on the Local Bus
127  */
128 #define CFG_LBC_SDRAM_BASE	0xf0000000	/* Localbus SDRAM */
129 #define CFG_LBC_SDRAM_SIZE	64		/* LBC SDRAM is 64MB */
130 
131 #define CFG_FLASH_BASE		0xff000000	/* start of FLASH 16M */
132 #define CFG_BR0_PRELIM		0xff001801	/* port size 32bit */
133 
134 #define CFG_OR0_PRELIM		0xff006ff7	/* 16MB Flash */
135 #define CFG_MAX_FLASH_BANKS	1		/* number of banks */
136 #define CFG_MAX_FLASH_SECT	64		/* sectors per device */
137 #undef	CFG_FLASH_CHECKSUM
138 #define CFG_FLASH_ERASE_TOUT	60000	/* Flash Erase Timeout (ms) */
139 #define CFG_FLASH_WRITE_TOUT	500	/* Flash Write Timeout (ms) */
140 
141 #define CFG_MONITOR_BASE    	TEXT_BASE	/* start of monitor */
142 
143 
144 #if (CFG_MONITOR_BASE < CFG_FLASH_BASE)
145 #define CFG_RAMBOOT
146 #else
147 #undef  CFG_RAMBOOT
148 #endif
149 
150 
151 #undef CONFIG_CLOCKS_IN_MHZ
152 
153 
154 /*
155  * Local Bus Definitions
156  */
157 
158 /*
159  * Base Register 2 and Option Register 2 configure SDRAM.
160  * The SDRAM base address, CFG_LBC_SDRAM_BASE, is 0xf0000000.
161  *
162  * For BR2, need:
163  *    Base address of 0xf0000000 = BR[0:16] = 1111 0000 0000 0000 0
164  *    port-size = 32-bits = BR2[19:20] = 11
165  *    no parity checking = BR2[21:22] = 00
166  *    SDRAM for MSEL = BR2[24:26] = 011
167  *    Valid = BR[31] = 1
168  *
169  * 0    4    8    12   16   20   24   28
170  * 1111 0000 0000 0000 0001 1000 0110 0001 = f0001861
171  *
172  * FIXME: CFG_LBC_SDRAM_BASE should be masked and OR'ed into
173  * FIXME: the top 17 bits of BR2.
174  */
175 
176 #define CFG_BR2_PRELIM		0xf0001861
177 
178 /*
179  * The SDRAM size in MB, CFG_LBC_SDRAM_SIZE, is 64.
180  *
181  * For OR2, need:
182  *    64MB mask for AM, OR2[0:7] = 1111 1100
183  *		   XAM, OR2[17:18] = 11
184  *    9 columns OR2[19-21] = 010
185  *    13 rows   OR2[23-25] = 100
186  *    EAD set for extra time OR[31] = 1
187  *
188  * 0    4    8    12   16   20   24   28
189  * 1111 1100 0000 0000 0110 1001 0000 0001 = fc006901
190  */
191 
192 #define CFG_OR2_PRELIM		0xfc006901
193 
194 #define CFG_LBC_LCRR		0x00030004    /* LB clock ratio reg */
195 #define CFG_LBC_LBCR		0x00000000    /* LB config reg */
196 #define CFG_LBC_LSRT		0x20000000    /* LB sdram refresh timer */
197 #define CFG_LBC_MRTPR		0x20000000    /* LB refresh timer prescal*/
198 
199 /*
200  * LSDMR masks
201  */
202 #define CFG_LBC_LSDMR_RFEN	(1 << (31 -  1))
203 #define CFG_LBC_LSDMR_BSMA1516	(3 << (31 - 10))
204 #define CFG_LBC_LSDMR_BSMA1617	(4 << (31 - 10))
205 #define CFG_LBC_LSDMR_RFCR5	(3 << (31 - 16))
206 #define CFG_LBC_LSDMR_RFCR16	(7 << (31 - 16))
207 #define CFG_LBC_LSDMR_PRETOACT3	(3 << (31 - 19))
208 #define CFG_LBC_LSDMR_PRETOACT7	(7 << (31 - 19))
209 #define CFG_LBC_LSDMR_ACTTORW3	(3 << (31 - 22))
210 #define CFG_LBC_LSDMR_ACTTORW7	(7 << (31 - 22))
211 #define CFG_LBC_LSDMR_ACTTORW6	(6 << (31 - 22))
212 #define CFG_LBC_LSDMR_BL8	(1 << (31 - 23))
213 #define CFG_LBC_LSDMR_WRC2	(2 << (31 - 27))
214 #define CFG_LBC_LSDMR_WRC4	(0 << (31 - 27))
215 #define CFG_LBC_LSDMR_BUFCMD	(1 << (31 - 29))
216 #define CFG_LBC_LSDMR_CL3	(3 << (31 - 31))
217 
218 #define CFG_LBC_LSDMR_OP_NORMAL	(0 << (31 - 4))
219 #define CFG_LBC_LSDMR_OP_ARFRSH	(1 << (31 - 4))
220 #define CFG_LBC_LSDMR_OP_SRFRSH	(2 << (31 - 4))
221 #define CFG_LBC_LSDMR_OP_MRW	(3 << (31 - 4))
222 #define CFG_LBC_LSDMR_OP_PRECH	(4 << (31 - 4))
223 #define CFG_LBC_LSDMR_OP_PCHALL	(5 << (31 - 4))
224 #define CFG_LBC_LSDMR_OP_ACTBNK	(6 << (31 - 4))
225 #define CFG_LBC_LSDMR_OP_RWINV	(7 << (31 - 4))
226 
227 #define CFG_LBC_LSDMR_COMMON	( CFG_LBC_LSDMR_BSMA1516	\
228 				| CFG_LBC_LSDMR_RFCR5		\
229 				| CFG_LBC_LSDMR_PRETOACT3	\
230 				| CFG_LBC_LSDMR_ACTTORW3	\
231 				| CFG_LBC_LSDMR_BL8		\
232 				| CFG_LBC_LSDMR_WRC2		\
233 				| CFG_LBC_LSDMR_CL3		\
234 				| CFG_LBC_LSDMR_RFEN		\
235 				)
236 
237 /*
238  * SDRAM Controller configuration sequence.
239  */
240 #define CFG_LBC_LSDMR_1		( CFG_LBC_LSDMR_COMMON \
241 				| CFG_LBC_LSDMR_OP_PCHALL)
242 #define CFG_LBC_LSDMR_2		( CFG_LBC_LSDMR_COMMON \
243 				| CFG_LBC_LSDMR_OP_ARFRSH)
244 #define CFG_LBC_LSDMR_3		( CFG_LBC_LSDMR_COMMON \
245 				| CFG_LBC_LSDMR_OP_ARFRSH)
246 #define CFG_LBC_LSDMR_4		( CFG_LBC_LSDMR_COMMON \
247 				| CFG_LBC_LSDMR_OP_MRW)
248 #define CFG_LBC_LSDMR_5		( CFG_LBC_LSDMR_COMMON \
249 				| CFG_LBC_LSDMR_OP_NORMAL)
250 
251 
252 /*
253  * 32KB, 8-bit wide for ADS config reg
254  */
255 #define CFG_BR4_PRELIM          0xf8000801
256 #define CFG_OR4_PRELIM		0xffffe1f1
257 #define CFG_BCSR		(CFG_BR4_PRELIM & 0xffff8000)
258 
259 #define CONFIG_L1_INIT_RAM
260 #define CFG_INIT_RAM_LOCK 	1
261 #define CFG_INIT_RAM_ADDR	0xe4010000	/* Initial RAM address */
262 #define CFG_INIT_RAM_END    	0x4000	    	/* End of used area in RAM */
263 
264 #define CFG_GBL_DATA_SIZE  	128		/* num bytes initial data */
265 #define CFG_GBL_DATA_OFFSET	(CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
266 #define CFG_INIT_SP_OFFSET	CFG_GBL_DATA_OFFSET
267 
268 #define CFG_MONITOR_LEN	    	(256 * 1024)    /* Reserve 256 kB for Mon */
269 #define CFG_MALLOC_LEN	    	(128 * 1024)    /* Reserved for malloc */
270 
271 /* Serial Port */
272 #define CONFIG_CONS_ON_SCC	/* define if console on SCC */
273 #undef  CONFIG_CONS_NONE	/* define if console on something else */
274 #define CONFIG_CONS_INDEX       1  /* which serial channel for console */
275 
276 #define CONFIG_BAUDRATE	 	115200
277 
278 #define CFG_BAUDRATE_TABLE  \
279 	{300, 600, 1200, 2400, 4800, 9600, 19200, 38400,115200}
280 
281 /* Use the HUSH parser */
282 #define CFG_HUSH_PARSER
283 #ifdef  CFG_HUSH_PARSER
284 #define CFG_PROMPT_HUSH_PS2 "> "
285 #endif
286 
287 /* I2C */
288 #define  CONFIG_HARD_I2C		/* I2C with hardware support*/
289 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged */
290 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address */
291 #define CFG_I2C_SLAVE		0x7F
292 #define CFG_I2C_NOPROBES        {0x69}	/* Don't probe these addrs */
293 
294 /* RapidIO MMU */
295 #define CFG_RIO_MEM_BASE	0xc0000000	/* base address */
296 #define CFG_RIO_MEM_PHYS	CFG_RIO_MEM_BASE
297 #define CFG_RIO_MEM_SIZE	0x20000000	/* 128M */
298 
299 /*
300  * General PCI
301  * Addresses are mapped 1-1.
302  */
303 #define CFG_PCI1_MEM_BASE	0x80000000
304 #define CFG_PCI1_MEM_PHYS	CFG_PCI1_MEM_BASE
305 #define CFG_PCI1_MEM_SIZE	0x20000000	/* 512M */
306 #define CFG_PCI1_IO_BASE	0xe2000000
307 #define CFG_PCI1_IO_PHYS	CFG_PCI1_IO_BASE
308 #define CFG_PCI1_IO_SIZE	0x1000000	/* 16M */
309 
310 #if defined(CONFIG_PCI)
311 
312 #define CONFIG_NET_MULTI
313 #define CONFIG_PCI_PNP	               	/* do pci plug-and-play */
314 
315 #undef CONFIG_EEPRO100
316 #undef CONFIG_TULIP
317 
318 #if !defined(CONFIG_PCI_PNP)
319     #define PCI_ENET0_IOADDR	0xe0000000
320     #define PCI_ENET0_MEMADDR	0xe0000000
321     #define PCI_IDSEL_NUMBER	0x0c 	/* slot0->3(IDSEL)=12->15 */
322 #endif
323 
324 #undef CONFIG_PCI_SCAN_SHOW		/* show pci devices on startup */
325 #define CFG_PCI_SUBSYS_VENDORID 0x1057  /* Motorola */
326 
327 #endif	/* CONFIG_PCI */
328 
329 
330 #if defined(CONFIG_TSEC_ENET)
331 
332 #ifndef CONFIG_NET_MULTI
333 #define CONFIG_NET_MULTI 	1
334 #endif
335 
336 #define CONFIG_MII		1	/* MII PHY management */
337 #define CONFIG_MPC85XX_TSEC1	1
338 #define CONFIG_MPC85XX_TSEC2	1
339 #undef CONFIG_MPC85XX_FEC
340 #define TSEC1_PHY_ADDR		0
341 #define TSEC2_PHY_ADDR		1
342 #define TSEC1_PHYIDX		0
343 #define TSEC2_PHYIDX		0
344 #define CONFIG_ETHPRIME		"MOTO ENET0"
345 
346 #elif defined(CONFIG_ETHER_ON_FCC)	/* CPM FCC Ethernet */
347 
348 #define CONFIG_ETHER_ON_FCC	/* define if ether on FCC   */
349 #undef  CONFIG_ETHER_NONE	/* define if ether on something else */
350 #define CONFIG_ETHER_INDEX      2       /* which channel for ether */
351 
352 #if (CONFIG_ETHER_INDEX == 2)
353   /*
354    * - Rx-CLK is CLK13
355    * - Tx-CLK is CLK14
356    * - Select bus for bd/buffers
357    * - Full duplex
358    */
359   #define CFG_CMXFCR_MASK       (CMXFCR_FC2 | CMXFCR_RF2CS_MSK | CMXFCR_TF2CS_MSK)
360   #define CFG_CMXFCR_VALUE      (CMXFCR_RF2CS_CLK13 | CMXFCR_TF2CS_CLK14)
361   #define CFG_CPMFCR_RAMTYPE    0
362   #define CFG_FCC_PSMR          (FCC_PSMR_FDE)
363   #define FETH2_RST		0x01
364 #elif (CONFIG_ETHER_INDEX == 3)
365   /* need more definitions here for FE3 */
366   #define FETH3_RST		0x80
367 #endif  				/* CONFIG_ETHER_INDEX */
368 
369 #define CONFIG_MII			/* MII PHY management */
370 #define CONFIG_BITBANGMII		/* bit-bang MII PHY management */
371 
372 /*
373  * GPIO pins used for bit-banged MII communications
374  */
375 #define MDIO_PORT	2		/* Port C */
376 #define MDIO_ACTIVE	(iop->pdir |=  0x00400000)
377 #define MDIO_TRISTATE	(iop->pdir &= ~0x00400000)
378 #define MDIO_READ	((iop->pdat &  0x00400000) != 0)
379 
380 #define MDIO(bit)	if(bit) iop->pdat |=  0x00400000; \
381 			else	iop->pdat &= ~0x00400000
382 
383 #define MDC(bit)	if(bit) iop->pdat |=  0x00200000; \
384 			else	iop->pdat &= ~0x00200000
385 
386 #define MIIDELAY	udelay(1)
387 
388 #endif
389 
390 
391 /*
392  * Environment
393  */
394 #ifndef CFG_RAMBOOT
395   #define CFG_ENV_IS_IN_FLASH	1
396   #define CFG_ENV_ADDR		(CFG_MONITOR_BASE + 0x40000)
397   #define CFG_ENV_SECT_SIZE	0x40000	/* 256K(one sector) for env */
398   #define CFG_ENV_SIZE		0x2000
399 #else
400   #define CFG_NO_FLASH		1	/* Flash is not usable now */
401   #define CFG_ENV_IS_NOWHERE	1	/* Store ENV in memory only */
402   #define CFG_ENV_ADDR		(CFG_MONITOR_BASE - 0x1000)
403   #define CFG_ENV_SIZE		0x2000
404 #endif
405 
406 #define CONFIG_LOADS_ECHO	1	/* echo on for serial download */
407 #define CFG_LOADS_BAUD_CHANGE	1	/* allow baudrate change */
408 
409 #if defined(CFG_RAMBOOT)
410   #if defined(CONFIG_PCI)
411     #define  CONFIG_COMMANDS	((CONFIG_CMD_DFL	\
412 				 | CFG_CMD_PING		\
413 				 | CFG_CMD_PCI		\
414 				 | CFG_CMD_I2C)		\
415 				&			\
416 				 ~(CFG_CMD_ENV		\
417 				  | CFG_CMD_LOADS))
418   #elif defined(CONFIG_TSEC_ENET)
419     #define  CONFIG_COMMANDS	((CONFIG_CMD_DFL	\
420 				| CFG_CMD_PING		\
421 				| CFG_CMD_I2C)		\
422 				& ~(CFG_CMD_ENV))
423   #elif defined(CONFIG_ETHER_ON_FCC)
424     #define  CONFIG_COMMANDS	((CONFIG_CMD_DFL	\
425 				 | CFG_CMD_MII		\
426 				 | CFG_CMD_PING		\
427 				 | CFG_CMD_I2C)		\
428 				& ~(CFG_CMD_ENV))
429   #endif
430 #else
431   #if defined(CONFIG_PCI)
432     #define  CONFIG_COMMANDS	(CONFIG_CMD_DFL		\
433 				| CFG_CMD_PCI		\
434 				| CFG_CMD_PING		\
435 				| CFG_CMD_I2C)
436   #elif defined(CONFIG_TSEC_ENET)
437     #define  CONFIG_COMMANDS	(CONFIG_CMD_DFL		\
438 				| CFG_CMD_PING		\
439 				| CFG_CMD_I2C)
440   #elif defined(CONFIG_ETHER_ON_FCC)
441     #define  CONFIG_COMMANDS	(CONFIG_CMD_DFL		\
442 				| CFG_CMD_MII		\
443 				| CFG_CMD_PING		\
444 				| CFG_CMD_I2C)
445   #endif
446 #endif
447 
448 #include <cmd_confdefs.h>
449 
450 #undef CONFIG_WATCHDOG			/* watchdog disabled */
451 
452 /*
453  * Miscellaneous configurable options
454  */
455 #define CFG_LONGHELP			/* undef to save memory	*/
456 #define CFG_LOAD_ADDR	0x1000000	/* default load address */
457 #define CFG_PROMPT	"=> "		/* Monitor Command Prompt */
458 
459 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
460     #define CFG_CBSIZE	1024		/* Console I/O Buffer Size */
461 #else
462     #define CFG_CBSIZE	256		/* Console I/O Buffer Size */
463 #endif
464 
465 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
466 #define CFG_MAXARGS	16		/* max number of command args */
467 #define CFG_BARGSIZE	CFG_CBSIZE	/* Boot Argument Buffer Size */
468 #define CFG_HZ		1000		/* decrementer freq: 1ms ticks */
469 
470 /*
471  * For booting Linux, the board info and command line data
472  * have to be in the first 8 MB of memory, since this is
473  * the maximum mapped by the Linux kernel during initialization.
474  */
475 #define CFG_BOOTMAPSZ	(8 << 20)	/* Initial Memory map for Linux*/
476 
477 /* Cache Configuration */
478 #define CFG_DCACHE_SIZE		32768
479 #define CFG_CACHELINE_SIZE	32
480 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
481 #define CFG_CACHELINE_SHIFT	5	/*log base 2 of the above value*/
482 #endif
483 
484 /*
485  * Internal Definitions
486  *
487  * Boot Flags
488  */
489 #define BOOTFLAG_COLD	0x01		/* Normal Power-On: Boot from FLASH */
490 #define BOOTFLAG_WARM	0x02		/* Software reboot */
491 
492 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
493 #define CONFIG_KGDB_BAUDRATE	230400	/* speed to run kgdb serial port */
494 #define CONFIG_KGDB_SER_INDEX	2	/* which serial port to use */
495 #endif
496 
497 
498 /*
499  * Environment Configuration
500  */
501 
502 /* The mac addresses for all ethernet interface */
503 #if defined(CONFIG_TSEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
504 #define CONFIG_ETHADDR   00:E0:0C:00:00:FD
505 #define CONFIG_ETH1ADDR  00:E0:0C:00:01:FD
506 #define CONFIG_ETH2ADDR  00:E0:0C:00:02:FD
507 #endif
508 
509 #define CONFIG_IPADDR    192.168.1.253
510 
511 #define CONFIG_HOSTNAME		unknown
512 #define CONFIG_ROOTPATH		/nfsroot
513 #define CONFIG_BOOTFILE		your.uImage
514 
515 #define CONFIG_SERVERIP  192.168.1.1
516 #define CONFIG_GATEWAYIP 192.168.1.1
517 #define CONFIG_NETMASK   255.255.255.0
518 
519 #define CONFIG_LOADADDR  200000	/* default location for tftp and bootm */
520 
521 #define CONFIG_BOOTDELAY 10	/* -1 disables auto-boot */
522 #undef  CONFIG_BOOTARGS		/* the boot command will set bootargs */
523 
524 #define CONFIG_BAUDRATE	115200
525 
526 #define	CONFIG_EXTRA_ENV_SETTINGS				        \
527    "netdev=eth0\0"                                                      \
528    "consoledev=ttyS0\0"                                                 \
529    "ramdiskaddr=400000\0"						\
530    "ramdiskfile=your.ramdisk.u-boot\0"
531 
532 #define CONFIG_NFSBOOTCOMMAND	                                        \
533    "setenv bootargs root=/dev/nfs rw "                                  \
534       "nfsroot=$serverip:$rootpath "                                    \
535       "ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off " \
536       "console=$consoledev,$baudrate $othbootargs;"                     \
537    "tftp $loadaddr $bootfile;"                                          \
538    "bootm $loadaddr"
539 
540 #define CONFIG_RAMBOOTCOMMAND \
541    "setenv bootargs root=/dev/ram rw "                                  \
542       "console=$consoledev,$baudrate $othbootargs;"                     \
543    "tftp $ramdiskaddr $ramdiskfile;"                                    \
544    "tftp $loadaddr $bootfile;"                                          \
545    "bootm $loadaddr $ramdiskaddr"
546 
547 #define CONFIG_BOOTCOMMAND  CONFIG_NFSBOOTCOMMAND
548 
549 #endif	/* __CONFIG_H */
550