summaryrefslogtreecommitdiff
path: root/include/configs/gcplus.h
blob: e11ce4c715e6690926626d037f1668fb9d4166ed (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
/*
 * (C) Copyright 2002
 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
 * Marius Groeger <mgroeger@sysgo.de>
 *
 * 2003-2004 (c) MontaVista Software, Inc.
 *
 * Configuation settings for the ADS GraphicsClient+ board.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#ifndef __CONFIG_H
#define __CONFIG_H

#undef	 DEBUG

/*
 * The ADS GCPlus Linux boot ROM loads U-Boot into RAM at 0xc0200000.
 * We don't actually init RAM in this case since we're using U-Boot as
 * an secondary boot loader during Linux kernel development and testing,
 * e.g. bootp/tftp download of the kernel is a far more convenient
 * when testing new kernels on this target. However the ADS GCPlus Linux
 * boot ROM leaves the MMU enabled when it passes control to U-Boot. So
 * we use lowlevel_init (CONFIG_INIT_CRITICAL) to remedy that problem.
 */
#undef  CONFIG_SKIP_LOWLEVEL_INIT
#define CONFIG_SKIP_RELOCATE_UBOOT	1

/*
 * High Level Configuration Options
 * (easy to change)
 */
#define CONFIG_SA1110		1	/* This is an SA1100 CPU	*/
#define CONFIG_GCPLUS		1	/* on an ADS GCPlus Board      */

#undef CONFIG_USE_IRQ			/* we don't need IRQ/FIQ stuff */

#define CONFIG_CMDLINE_TAG	 1	/* enable passing of ATAGs	*/
#define CONFIG_SETUP_MEMORY_TAGS 1
#define CONFIG_INITRD_TAG	 1

/*
 * Size of malloc() pool
 */
#define CFG_MALLOC_LEN          (CFG_ENV_SIZE + 128*1024)
#define CFG_GBL_DATA_SIZE       128     /* size rsrvd for initial data */


/*
 * Hardware drivers
 */
#define CONFIG_DRIVER_LAN91C96	/* we have an SMC9194 on-board */
#define CONFIG_LAN91C96_BASE	0x100e0000

/*
 * select serial console configuration
 */
#define CONFIG_SERIAL3          1	/* we use SERIAL 3 on ADS GCPlus */

/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE

#define CONFIG_BAUDRATE		38400


/*
 * Command line configuration.
 */
#include <config_cmd_default.h>

#define CONFIG_CMD_DHCP


/*
 * BOOTP options
 */
#define CONFIG_BOOTP_SUBNETMASK
#define CONFIG_BOOTP_GATEWAY
#define CONFIG_BOOTP_HOSTNAME
#define CONFIG_BOOTP_BOOTPATH


#define CONFIG_BOOTDELAY	3
#define CONFIG_BOOTARGS		"console=ttySA0,38400n8 mtdparts=sa1100-flash:1m@0(zImage),3m@1m(ramdisk.gz),12m@4m(userfs) root=/dev/nfs ip=bootp"
#define CONFIG_BOOTCOMMAND	"bootp;tftp;bootm"
#define CFG_AUTOLOAD            "n"             /* No autoload */

#if defined(CONFIG_CMD_KGDB)
#define CONFIG_KGDB_BAUDRATE	38400		/* speed to run kgdb serial port */
#define CONFIG_KGDB_SER_INDEX	2		/* which serial port to use */
#endif

/*
 * Miscellaneous configurable options
 */
#define	CFG_LONGHELP				/* undef to save memory		*/
#define	CFG_PROMPT		"ADS GCPlus # "	/* Monitor Command Prompt	*/
#define	CFG_CBSIZE		256		/* Console I/O Buffer Size	*/
#define	CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
#define	CFG_MAXARGS		16		/* max number of command args	*/
#define CFG_BARGSIZE		CFG_CBSIZE	/* Boot Argument Buffer Size	*/

#define CFG_MEMTEST_START	0xc0400000	/* memtest works on	*/
#define CFG_MEMTEST_END		0xc0800000	/* 4 ... 8 MB in DRAM	*/

#undef  CFG_CLKS_IN_HZ		/* everything, incl board info, in Hz */

#define	CFG_LOAD_ADDR		0xc0000000	/* default load address	*/

#define	CFG_HZ			3686400		/* incrementer freq: 3.6864 MHz */
#define CFG_CPUSPEED		0x0a		/* set core clock to 206MHz */

						/* valid baudrates */
#define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }

/*-----------------------------------------------------------------------
 * Stack sizes
 *
 * The stack sizes are set up in start.S using the settings below
 */
#define CONFIG_STACKSIZE	(128*1024)	/* regular stack */
#ifdef CONFIG_USE_IRQ
#define CONFIG_STACKSIZE_IRQ	(4*1024)	/* IRQ stack */
#define CONFIG_STACKSIZE_FIQ	(4*1024)	/* FIQ stack */
#endif

/*-----------------------------------------------------------------------
 * Physical Memory Map
 */
#define CONFIG_NR_DRAM_BANKS	2	   /* we have 2 banks of DRAM */
#define PHYS_SDRAM_1		0xc0000000 /* SDRAM Bank #1 */
#define PHYS_SDRAM_1_SIZE	0x01000000 /* 16 MB */
#define PHYS_SDRAM_2		0xc8000000 /* SDRAM Bank #2 */
#define PHYS_SDRAM_2_SIZE	0x01000000 /* 16 MB */


#define PHYS_FLASH_1		0x08000000 /* Flash Bank #1 */
#define PHYS_FLASH_SIZE		0x00800000 /* 8 MB */
#define PHYS_FLASH_BANK_SIZE    0x01000000 /* 16 MB Banks */
#define PHYS_FLASH_SECT_SIZE    0x00040000 /* 256 KB sectors (x2) */

#define CFG_FLASH_BASE		PHYS_FLASH_1

/*-----------------------------------------------------------------------
 * FLASH and environment organization
 */
#if	1
#define CFG_MAX_FLASH_BANKS	1	/* max number of memory banks */
#define CFG_MAX_FLASH_SECT	128	/* max number of sectors on one chip */

/* timeout values are in ticks */
#define CFG_FLASH_ERASE_TOUT	(2*CFG_HZ) /* Timeout for Flash Erase */
#define CFG_FLASH_WRITE_TOUT	(2*CFG_HZ) /* Timeout for Flash Write */
#else
/* REVISIT: This doesn't work on ADS GCPlus just yet: */
#define CFG_FLASH_CFI           1       /* flash is CFI conformant      */
#define CFG_FLASH_CFI_DRIVER    1       /* use common cfi driver        */
#define CFG_FLASH_USE_BUFFER_WRITE 1    /* use buffered writes (20x faster) */
#define CFG_MAX_FLASH_BANKS     1       /* max # of memory banks        */
#define CFG_FLASH_INCREMENT     0       /* there is only one bank       */
#define CFG_MAX_FLASH_SECT      128     /* max # of sectors on one chip */
/*#define CFG_FLASH_PROTECTION    1       /--* hardware flash protection    */
#define CFG_FLASH_BANKS_LIST    { CFG_FLASH_BASE }
#endif

#define	CFG_ENV_IS_IN_FLASH	1
#define CFG_ENV_ADDR		(PHYS_FLASH_1 + PHYS_FLASH_SECT_SIZE)	/* Addr of Environment Sector	*/
#define CFG_ENV_SIZE		PHYS_FLASH_SECT_SIZE

#endif	/* __CONFIG_H */