xref: /openbmc/u-boot/include/configs/MPC8568MDS.h (revision c8c41d4a)
1 /*
2  * Copyright 2004-2007 Freescale Semiconductor.
3  *
4  * See file CREDITS for list of people who contributed to this
5  * project.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License as
9  * published by the Free Software Foundation; either version 2 of
10  * the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20  * MA 02111-1307 USA
21  */
22 
23 /*
24  * mpc8568mds board configuration file
25  */
26 #ifndef __CONFIG_H
27 #define __CONFIG_H
28 
29 /* High Level Configuration Options */
30 #define CONFIG_BOOKE		1	/* BOOKE */
31 #define CONFIG_E500		1	/* BOOKE e500 family */
32 #define CONFIG_MPC85xx		1	/* MPC8540/60/55/41/48/68 */
33 #define CONFIG_MPC8568		1	/* MPC8568 specific */
34 #define CONFIG_MPC8568MDS	1	/* MPC8568MDS board specific */
35 
36 #define CONFIG_PCI		1	/* Enable PCI/PCIE */
37 #define CONFIG_PCI1		1	/* PCI controller */
38 #define CONFIG_PCIE1		1	/* PCIE controller */
39 #define CONFIG_FSL_PCI_INIT	1	/* use common fsl pci init code */
40 #define CONFIG_FSL_PCIE_RESET	1	/* need PCIe reset errata */
41 #define CONFIG_TSEC_ENET 		/* tsec ethernet support */
42 #define CONFIG_QE			/* Enable QE */
43 #define CONFIG_ENV_OVERWRITE
44 #define CONFIG_SPD_EEPROM		/* Use SPD EEPROM for DDR setup*/
45 #define CONFIG_DDR_DLL			/* possible DLL fix needed */
46 /*#define CONFIG_DDR_2T_TIMING		 Sets the 2T timing bit */
47 
48 /*#define CONFIG_DDR_ECC*/			/* only for ECC DDR module */
49 /*#define CONFIG_ECC_INIT_VIA_DDRCONTROLLER*/	/* DDR controller or DMA? */
50 #define CONFIG_MEM_INIT_VALUE		0xDeadBeef
51 
52 #define CONFIG_FSL_LAW		1	/* Use common FSL init code */
53 
54 /*
55  * When initializing flash, if we cannot find the manufacturer ID,
56  * assume this is the AMD flash associated with the MDS board.
57  * This allows booting from a promjet.
58  */
59 #define CONFIG_ASSUME_AMD_FLASH
60 
61 #define MPC85xx_DDR_SDRAM_CLK_CNTL	/* 85xx has clock control reg */
62 
63 #ifndef __ASSEMBLY__
64 extern unsigned long get_clock_freq(void);
65 #endif						  /*Replace a call to get_clock_freq (after it is implemented)*/
66 #define CONFIG_SYS_CLK_FREQ	66000000 /*TODO: restore if wanting to read from BCSR: get_clock_freq()*/ /* sysclk for MPC85xx */
67 
68 /*
69  * These can be toggled for performance analysis, otherwise use default.
70  */
71 #define CONFIG_L2_CACHE				/* toggle L2 cache 	*/
72 #define CONFIG_BTB				/* toggle branch predition */
73 #define CONFIG_ADDR_STREAMING			/* toggle addr streaming   */
74 
75 /*
76  * Only possible on E500 Version 2 or newer cores.
77  */
78 #define CONFIG_ENABLE_36BIT_PHYS	1
79 
80 
81 #define CONFIG_BOARD_EARLY_INIT_F	1	/* Call board_pre_init */
82 
83 #undef	CFG_DRAM_TEST			/* memory test, takes time */
84 #define CFG_MEMTEST_START	0x00200000	/* memtest works on */
85 #define CFG_MEMTEST_END		0x00400000
86 
87 /*
88  * Base addresses -- Note these are effective addresses where the
89  * actual resources get mapped (not physical addresses)
90  */
91 #define CFG_CCSRBAR_DEFAULT 	0xff700000	/* CCSRBAR Default */
92 #define CFG_CCSRBAR		0xe0000000	/* relocated CCSRBAR */
93 #define CFG_IMMR		CFG_CCSRBAR	/* PQII uses CFG_IMMR */
94 
95 #define CFG_PCI1_ADDR           (CFG_CCSRBAR+0x8000)
96 #define CFG_PCIE1_ADDR          (CFG_CCSRBAR+0xa000)
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 #define SPD_EEPROM_ADDRESS	0x51		/* DDR DIMM */
105 
106 /*
107  * Make sure required options are set
108  */
109 #ifndef CONFIG_SPD_EEPROM
110 #error ("CONFIG_SPD_EEPROM is required")
111 #endif
112 
113 #undef CONFIG_CLOCKS_IN_MHZ
114 
115 
116 /*
117  * Local Bus Definitions
118  */
119 
120 /*
121  * FLASH on the Local Bus
122  * Two banks, 8M each, using the CFI driver.
123  * Boot from BR0/OR0 bank at 0xff00_0000
124  * Alternate BR1/OR1 bank at 0xff80_0000
125  *
126  * BR0, BR1:
127  *    Base address 0 = 0xff00_0000 = BR0[0:16] = 1111 1111 0000 0000 0
128  *    Base address 1 = 0xff80_0000 = BR1[0:16] = 1111 1111 1000 0000 0
129  *    Port Size = 16 bits = BRx[19:20] = 10
130  *    Use GPCM = BRx[24:26] = 000
131  *    Valid = BRx[31] = 1
132  *
133  * 0    4    8    12   16   20   24   28
134  * 1111 1111 1000 0000 0001 0000 0000 0001 = ff801001    BR0
135  * 1111 1111 0000 0000 0001 0000 0000 0001 = ff001001    BR1
136  *
137  * OR0, OR1:
138  *    Addr Mask = 8M = ORx[0:16] = 1111 1111 1000 0000 0
139  *    Reserved ORx[17:18] = 11, confusion here?
140  *    CSNT = ORx[20] = 1
141  *    ACS = half cycle delay = ORx[21:22] = 11
142  *    SCY = 6 = ORx[24:27] = 0110
143  *    TRLX = use relaxed timing = ORx[29] = 1
144  *    EAD = use external address latch delay = OR[31] = 1
145  *
146  * 0    4    8    12   16   20   24   28
147  * 1111 1111 1000 0000 0110 1110 0110 0101 = ff806e65    ORx
148  */
149 #define CFG_BCSR_BASE		0xf8000000
150 
151 #define CFG_FLASH_BASE		0xfe000000	/* start of FLASH 32M */
152 
153 /*Chip select 0 - Flash*/
154 #define CFG_BR0_PRELIM		0xfe001001
155 #define	CFG_OR0_PRELIM		0xfe006ff7
156 
157 /*Chip slelect 1 - BCSR*/
158 #define CFG_BR1_PRELIM		0xf8000801
159 #define	CFG_OR1_PRELIM		0xffffe9f7
160 
161 /*#define CFG_FLASH_BANKS_LIST	{0xff800000, CFG_FLASH_BASE} */
162 #define CFG_MAX_FLASH_BANKS		1		/* number of banks */
163 #define CFG_MAX_FLASH_SECT		512		/* sectors per device */
164 #undef	CFG_FLASH_CHECKSUM
165 #define CFG_FLASH_ERASE_TOUT	60000	/* Flash Erase Timeout (ms) */
166 #define CFG_FLASH_WRITE_TOUT	500		/* Flash Write Timeout (ms) */
167 
168 #define CFG_MONITOR_BASE    	TEXT_BASE	/* start of monitor */
169 
170 #define CFG_FLASH_CFI_DRIVER
171 #define CFG_FLASH_CFI
172 #define CFG_FLASH_EMPTY_INFO
173 
174 
175 /*
176  * SDRAM on the LocalBus
177  */
178 #define CFG_LBC_SDRAM_BASE	0xf0000000	/* Localbus SDRAM	 */
179 #define CFG_LBC_SDRAM_SIZE	64			/* LBC SDRAM is 64MB */
180 
181 
182 /*Chip select 2 - SDRAM*/
183 #define CFG_BR2_PRELIM      0xf0001861
184 #define CFG_OR2_PRELIM		0xfc006901
185 
186 #define CFG_LBC_LCRR		0x00030004    	/* LB clock ratio reg */
187 #define CFG_LBC_LBCR		0x00000000    	/* LB config reg */
188 #define CFG_LBC_LSRT		0x20000000  	/* LB sdram refresh timer */
189 #define CFG_LBC_MRTPR		0x00000000  	/* LB refresh timer prescal*/
190 
191 /*
192  * LSDMR masks
193  */
194 #define CFG_LBC_LSDMR_RFEN	(1 << (31 -  1))
195 #define CFG_LBC_LSDMR_BSMA1516	(3 << (31 - 10))
196 #define CFG_LBC_LSDMR_BSMA1617	(4 << (31 - 10))
197 #define CFG_LBC_LSDMR_RFCR16	(7 << (31 - 16))
198 #define CFG_LBC_LSDMR_PRETOACT7	(7 << (31 - 19))
199 #define CFG_LBC_LSDMR_ACTTORW7	(7 << (31 - 22))
200 #define CFG_LBC_LSDMR_ACTTORW6	(6 << (31 - 22))
201 #define CFG_LBC_LSDMR_BL8	(1 << (31 - 23))
202 #define CFG_LBC_LSDMR_WRC4	(0 << (31 - 27))
203 #define CFG_LBC_LSDMR_CL3	(3 << (31 - 31))
204 
205 #define CFG_LBC_LSDMR_OP_NORMAL	(0 << (31 - 4))
206 #define CFG_LBC_LSDMR_OP_ARFRSH	(1 << (31 - 4))
207 #define CFG_LBC_LSDMR_OP_SRFRSH	(2 << (31 - 4))
208 #define CFG_LBC_LSDMR_OP_MRW	(3 << (31 - 4))
209 #define CFG_LBC_LSDMR_OP_PRECH	(4 << (31 - 4))
210 #define CFG_LBC_LSDMR_OP_PCHALL	(5 << (31 - 4))
211 #define CFG_LBC_LSDMR_OP_ACTBNK	(6 << (31 - 4))
212 #define CFG_LBC_LSDMR_OP_RWINV	(7 << (31 - 4))
213 
214 /*
215  * Common settings for all Local Bus SDRAM commands.
216  * At run time, either BSMA1516 (for CPU 1.1)
217  *                  or BSMA1617 (for CPU 1.0) (old)
218  * is OR'ed in too.
219  */
220 #define CFG_LBC_LSDMR_COMMON	( CFG_LBC_LSDMR_RFCR16		\
221 				| CFG_LBC_LSDMR_PRETOACT7	\
222 				| CFG_LBC_LSDMR_ACTTORW7	\
223 				| CFG_LBC_LSDMR_BL8		\
224 				| CFG_LBC_LSDMR_WRC4		\
225 				| CFG_LBC_LSDMR_CL3		\
226 				| CFG_LBC_LSDMR_RFEN		\
227 				)
228 
229 /*
230  * The bcsr registers are connected to CS3 on MDS.
231  * The new memory map places bcsr at 0xf8000000.
232  *
233  * For BR3, need:
234  *    Base address of 0xf8000000 = BR[0:16] = 1111 1000 0000 0000 0
235  *    port-size = 8-bits  = BR[19:20] = 01
236  *    no parity checking  = BR[21:22] = 00
237  *    GPMC for MSEL       = BR[24:26] = 000
238  *    Valid               = BR[31]    = 1
239  *
240  * 0    4    8    12   16   20   24   28
241  * 1111 1000 0000 0000 0000 1000 0000 0001 = f8000801
242  *
243  * For OR3, need:
244  *    1 MB mask for AM,   OR[0:16]  = 1111 1111 1111 0000 0
245  *    disable buffer ctrl OR[19]    = 0
246  *    CSNT                OR[20]    = 1
247  *    ACS                 OR[21:22] = 11
248  *    XACS                OR[23]    = 1
249  *    SCY 15 wait states  OR[24:27] = 1111	max is suboptimal but safe
250  *    SETA                OR[28]    = 0
251  *    TRLX                OR[29]    = 1
252  *    EHTR                OR[30]    = 1
253  *    EAD extra time      OR[31]    = 1
254  *
255  * 0    4    8    12   16   20   24   28
256  * 1111 1111 1111 0000 0000 1111 1111 0111 = fff00ff7
257  */
258 #define CFG_BCSR (0xf8000000)
259 
260 /*Chip slelect 4 - PIB*/
261 #define CFG_BR4_PRELIM   0xf8008801
262 #define CFG_OR4_PRELIM   0xffffe9f7
263 
264 /*Chip select 5 - PIB*/
265 #define CFG_BR5_PRELIM	 0xf8010801
266 #define CFG_OR5_PRELIM	 0xffff69f7
267 
268 #define CONFIG_L1_INIT_RAM
269 #define CFG_INIT_RAM_LOCK 	1
270 #define CFG_INIT_RAM_ADDR	0xe4010000	/* Initial RAM address */
271 #define CFG_INIT_RAM_END    	0x4000	    /* End of used area in RAM */
272 
273 #define CFG_GBL_DATA_SIZE  	128	    /* num bytes initial data */
274 #define CFG_GBL_DATA_OFFSET	(CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
275 #define CFG_INIT_SP_OFFSET	CFG_GBL_DATA_OFFSET
276 
277 #define CFG_MONITOR_LEN	    	(256 * 1024) /* Reserve 256 kB for Mon */
278 #define CFG_MALLOC_LEN	    	(128 * 1024)	/* Reserved for malloc */
279 
280 /* Serial Port */
281 #define CONFIG_CONS_INDEX		1
282 #undef	CONFIG_SERIAL_SOFTWARE_FIFO
283 #define CFG_NS16550
284 #define CFG_NS16550_SERIAL
285 #define CFG_NS16550_REG_SIZE    1
286 #define CFG_NS16550_CLK		get_bus_freq(0)
287 
288 #define CFG_BAUDRATE_TABLE  \
289 	{300, 600, 1200, 2400, 4800, 9600, 19200, 38400,115200}
290 
291 #define CFG_NS16550_COM1        (CFG_CCSRBAR+0x4500)
292 #define CFG_NS16550_COM2        (CFG_CCSRBAR+0x4600)
293 
294 /* Use the HUSH parser*/
295 #define CFG_HUSH_PARSER
296 #ifdef  CFG_HUSH_PARSER
297 #define CFG_PROMPT_HUSH_PS2 "> "
298 #endif
299 
300 /* pass open firmware flat tree */
301 #define CONFIG_OF_LIBFDT		1
302 #define CONFIG_OF_BOARD_SETUP		1
303 #define CONFIG_OF_STDOUT_VIA_ALIAS	1
304 
305 /*
306  * I2C
307  */
308 #define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
309 #define CONFIG_HARD_I2C		/* I2C with hardware support*/
310 #undef	CONFIG_SOFT_I2C			/* I2C bit-banged */
311 #define CONFIG_I2C_MULTI_BUS
312 #define CONFIG_I2C_CMD_TREE
313 #define CFG_I2C_SPEED		400000	/* I2C speed and slave address */
314 #define CFG_I2C_EEPROM_ADDR	0x52
315 #define CFG_I2C_SLAVE		0x7F
316 #define CFG_I2C_NOPROBES        {{0,0x69}}	/* Don't probe these addrs */
317 #define CFG_I2C_OFFSET		0x3000
318 #define CFG_I2C2_OFFSET		0x3100
319 
320 /*
321  * General PCI
322  * Memory Addresses are mapped 1-1. I/O is mapped from 0
323  */
324 #define CFG_PCI1_MEM_BASE	0x80000000
325 #define CFG_PCI1_MEM_PHYS	CFG_PCI1_MEM_BASE
326 #define CFG_PCI1_MEM_SIZE	0x20000000	/* 512M */
327 #define CFG_PCI1_IO_BASE	0x00000000
328 #define CFG_PCI1_IO_PHYS	0xe2000000
329 #define CFG_PCI1_IO_SIZE	0x00800000	/* 8M */
330 
331 #define CFG_PCIE1_MEM_BASE	0xa0000000
332 #define CFG_PCIE1_MEM_PHYS	CFG_PCIE1_MEM_BASE
333 #define CFG_PCIE1_MEM_SIZE	0x20000000	/* 512M */
334 #define CFG_PCIE1_IO_BASE	0x00000000
335 #define CFG_PCIE1_IO_PHYS	0xe2800000
336 #define CFG_PCIE1_IO_SIZE	0x00800000	/* 8M */
337 
338 #define CFG_SRIO_MEM_BASE	0xc0000000
339 
340 #ifdef CONFIG_QE
341 /*
342  * QE UEC ethernet configuration
343  */
344 #define CONFIG_UEC_ETH
345 #ifndef CONFIG_TSEC_ENET
346 #define CONFIG_ETHPRIME         "FSL UEC0"
347 #endif
348 #define CONFIG_PHY_MODE_NEED_CHANGE
349 #define CONFIG_eTSEC_MDIO_BUS
350 
351 #ifdef CONFIG_eTSEC_MDIO_BUS
352 #define CONFIG_MIIM_ADDRESS 	0xE0024520
353 #endif
354 
355 #define CONFIG_UEC_ETH1         /* GETH1 */
356 
357 #ifdef CONFIG_UEC_ETH1
358 #define CFG_UEC1_UCC_NUM        0       /* UCC1 */
359 #define CFG_UEC1_RX_CLK         QE_CLK_NONE
360 #define CFG_UEC1_TX_CLK         QE_CLK16
361 #define CFG_UEC1_ETH_TYPE       GIGA_ETH
362 #define CFG_UEC1_PHY_ADDR       7
363 #define CFG_UEC1_INTERFACE_MODE ENET_1000_GMII
364 #endif
365 
366 #define CONFIG_UEC_ETH2         /* GETH2 */
367 
368 #ifdef CONFIG_UEC_ETH2
369 #define CFG_UEC2_UCC_NUM        1       /* UCC2 */
370 #define CFG_UEC2_RX_CLK         QE_CLK_NONE
371 #define CFG_UEC2_TX_CLK         QE_CLK16
372 #define CFG_UEC2_ETH_TYPE       GIGA_ETH
373 #define CFG_UEC2_PHY_ADDR       1
374 #define CFG_UEC2_INTERFACE_MODE ENET_1000_GMII
375 #endif
376 #endif /* CONFIG_QE */
377 
378 #if defined(CONFIG_PCI)
379 
380 #define CONFIG_NET_MULTI
381 #define CONFIG_PCI_PNP	               	/* do pci plug-and-play */
382 
383 #undef CONFIG_EEPRO100
384 #undef CONFIG_TULIP
385 
386 #undef CONFIG_PCI_SCAN_SHOW		/* show pci devices on startup */
387 #define CFG_PCI_SUBSYS_VENDORID 0x1057  /* Motorola */
388 
389 /* PCI view of System Memory */
390 #define CFG_PCI_MEMORY_BUS      0x00000000
391 #define CFG_PCI_MEMORY_PHYS     0x00000000
392 #define CFG_PCI_MEMORY_SIZE     0x80000000
393 
394 #endif	/* CONFIG_PCI */
395 
396 #ifndef CONFIG_NET_MULTI
397 #define CONFIG_NET_MULTI 	1
398 #endif
399 
400 #if defined(CONFIG_TSEC_ENET)
401 
402 #define CONFIG_MII		1	/* MII PHY management */
403 #define CONFIG_TSEC1	1
404 #define CONFIG_TSEC1_NAME	"eTSEC0"
405 #define CONFIG_TSEC2	1
406 #define CONFIG_TSEC2_NAME	"eTSEC1"
407 
408 #define TSEC1_PHY_ADDR		2
409 #define TSEC2_PHY_ADDR		3
410 
411 #define TSEC1_PHYIDX		0
412 #define TSEC2_PHYIDX		0
413 
414 #define TSEC1_FLAGS		TSEC_GIGABIT
415 #define TSEC2_FLAGS		TSEC_GIGABIT
416 
417 /* Options are: eTSEC[0-1] */
418 #define CONFIG_ETHPRIME		"eTSEC0"
419 
420 #endif	/* CONFIG_TSEC_ENET */
421 
422 /*
423  * Environment
424  */
425 #define CFG_ENV_IS_IN_FLASH	1
426 #define CFG_ENV_ADDR		(CFG_MONITOR_BASE + 0x40000)
427 #define CFG_ENV_SECT_SIZE	0x40000	/* 256K(one sector) for env */
428 #define CFG_ENV_SIZE		0x2000
429 
430 #define CONFIG_LOADS_ECHO	1	/* echo on for serial download */
431 #define CFG_LOADS_BAUD_CHANGE	1	/* allow baudrate change */
432 
433 
434 /*
435  * BOOTP options
436  */
437 #define CONFIG_BOOTP_BOOTFILESIZE
438 #define CONFIG_BOOTP_BOOTPATH
439 #define CONFIG_BOOTP_GATEWAY
440 #define CONFIG_BOOTP_HOSTNAME
441 
442 
443 /*
444  * Command line configuration.
445  */
446 #include <config_cmd_default.h>
447 
448 #define CONFIG_CMD_PING
449 #define CONFIG_CMD_I2C
450 #define CONFIG_CMD_MII
451 #define CONFIG_CMD_ELF
452 
453 #if defined(CONFIG_PCI)
454     #define CONFIG_CMD_PCI
455 #endif
456 
457 
458 #undef CONFIG_WATCHDOG			/* watchdog disabled */
459 
460 /*
461  * Miscellaneous configurable options
462  */
463 #define CFG_LONGHELP			/* undef to save memory	*/
464 #define CONFIG_CMDLINE_EDITING		/* Command-line editing */
465 #define CFG_LOAD_ADDR	0x2000000	/* default load address */
466 #define CFG_PROMPT	"=> "		/* Monitor Command Prompt */
467 #if defined(CONFIG_CMD_KGDB)
468 #define CFG_CBSIZE	1024		/* Console I/O Buffer Size */
469 #else
470 #define CFG_CBSIZE	256			/* Console I/O Buffer Size */
471 #endif
472 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
473 #define CFG_MAXARGS	16		/* max number of command args */
474 #define CFG_BARGSIZE	CFG_CBSIZE	/* Boot Argument Buffer Size */
475 #define CFG_HZ		1000		/* decrementer freq: 1ms ticks */
476 
477 /*
478  * For booting Linux, the board info and command line data
479  * have to be in the first 8 MB of memory, since this is
480  * the maximum mapped by the Linux kernel during initialization.
481  */
482 #define CFG_BOOTMAPSZ	(8 << 20) 	/* Initial Memory map for Linux*/
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 defined(CONFIG_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  * Environment Configuration
499  */
500 
501 /* The mac addresses for all ethernet interface */
502 #if defined(CONFIG_TSEC_ENET) || defined(CONFIG_UEC_ETH)
503 #define CONFIG_HAS_ETH0
504 #define CONFIG_ETHADDR   00:E0:0C:00:00:FD
505 #define CONFIG_HAS_ETH1
506 #define CONFIG_ETH1ADDR  00:E0:0C:00:01:FD
507 #define CONFIG_HAS_ETH2
508 #define CONFIG_ETH2ADDR  00:E0:0C:00:02:FD
509 #define CONFIG_HAS_ETH3
510 #define CONFIG_ETH3ADDR  00:E0:0C:00:03:FD
511 #endif
512 
513 #define CONFIG_IPADDR    192.168.1.253
514 
515 #define CONFIG_HOSTNAME  unknown
516 #define CONFIG_ROOTPATH  /nfsroot
517 #define CONFIG_BOOTFILE  your.uImage
518 
519 #define CONFIG_SERVERIP  192.168.1.1
520 #define CONFIG_GATEWAYIP 192.168.1.1
521 #define CONFIG_NETMASK   255.255.255.0
522 
523 #define CONFIG_LOADADDR  200000   /*default location for tftp and bootm*/
524 
525 #define CONFIG_BOOTDELAY 10       /* -1 disables auto-boot */
526 #undef  CONFIG_BOOTARGS           /* the boot command will set bootargs*/
527 
528 #define CONFIG_BAUDRATE	115200
529 
530 #define	CONFIG_EXTRA_ENV_SETTINGS				        \
531    "netdev=eth0\0"                                                      \
532    "consoledev=ttyS0\0"                                                 \
533    "ramdiskaddr=600000\0"                                               \
534    "ramdiskfile=your.ramdisk.u-boot\0"					\
535    "fdtaddr=400000\0"							\
536    "fdtfile=your.fdt.dtb\0"						\
537    "nfsargs=setenv bootargs root=/dev/nfs rw "				\
538       "nfsroot=$serverip:$rootpath "					\
539       "ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off " \
540       "console=$consoledev,$baudrate $othbootargs\0"			\
541    "ramargs=setenv bootargs root=/dev/ram rw "				\
542       "console=$consoledev,$baudrate $othbootargs\0"			\
543 
544 
545 #define CONFIG_NFSBOOTCOMMAND	                                        \
546    "run nfsargs;"							\
547    "tftp $loadaddr $bootfile;"                                          \
548    "tftp $fdtaddr $fdtfile;"						\
549    "bootm $loadaddr - $fdtaddr"
550 
551 
552 #define CONFIG_RAMBOOTCOMMAND \
553    "run ramargs;"							\
554    "tftp $ramdiskaddr $ramdiskfile;"                                    \
555    "tftp $loadaddr $bootfile;"                                          \
556    "bootm $loadaddr $ramdiskaddr"
557 
558 #define CONFIG_BOOTCOMMAND  CONFIG_NFSBOOTCOMMAND
559 
560 #endif	/* __CONFIG_H */
561