3 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
4 * Marius Groeger <mgroeger@sysgo.de>
6 * 2003-2004 (c) MontaVista Software, Inc.
8 * Configuation settings for the ADS GraphicsClient+ board.
10 * See file CREDITS for list of people who contributed to this
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License as
15 * published by the Free Software Foundation; either version 2 of
16 * the License, or (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
35 * The ADS GCPlus Linux boot ROM loads U-Boot into RAM at 0xc0200000.
36 * We don't actually init RAM in this case since we're using U-Boot as
37 * an secondary boot loader during Linux kernel development and testing,
38 * e.g. bootp/tftp download of the kernel is a far more convenient
39 * when testing new kernels on this target. However the ADS GCPlus Linux
40 * boot ROM leaves the MMU enabled when it passes control to U-Boot. So
41 * we use lowlevel_init (CONFIG_INIT_CRITICAL) to remedy that problem.
43 #undef CONFIG_SKIP_LOWLEVEL_INIT
44 #define CONFIG_SKIP_RELOCATE_UBOOT 1
47 * High Level Configuration Options
50 #define CONFIG_SA1110 1 /* This is an SA1100 CPU */
51 #define CONFIG_GCPLUS 1 /* on an ADS GCPlus Board */
53 #undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
55 #define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
56 #define CONFIG_SETUP_MEMORY_TAGS 1
57 #define CONFIG_INITRD_TAG 1
60 * Size of malloc() pool
62 #define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
63 #define CFG_GBL_DATA_SIZE 128 /* size rsrvd for initial data */
69 #define CONFIG_DRIVER_LAN91C96 /* we have an SMC9194 on-board */
70 #define CONFIG_LAN91C96_BASE 0x100e0000
73 * select serial console configuration
75 #define CONFIG_SERIAL3 1 /* we use SERIAL 3 on ADS GCPlus */
77 /* allow to overwrite serial and ethaddr */
78 #define CONFIG_ENV_OVERWRITE
80 #define CONFIG_BAUDRATE 38400
82 #define CONFIG_COMMANDS (CONFIG_CMD_DFL | CFG_CMD_DHCP)
83 #define CONFIG_BOOTP_MASK CONFIG_BOOTP_DEFAULT
85 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
86 #include <cmd_confdefs.h>
88 #define CONFIG_BOOTDELAY 3
89 #define CONFIG_BOOTARGS "console=ttySA0,38400n8 mtdparts=sa1100-flash:1m@0(zImage),3m@1m(ramdisk.gz),12m@4m(userfs) root=/dev/nfs ip=bootp"
90 #define CONFIG_BOOTCOMMAND "bootp;tftp;bootm"
91 #define CFG_AUTOLOAD "n" /* No autoload */
93 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
94 #define CONFIG_KGDB_BAUDRATE 38400 /* speed to run kgdb serial port */
95 #define CONFIG_KGDB_SER_INDEX 2 /* which serial port to use */
99 * Miscellaneous configurable options
101 #define CFG_LONGHELP /* undef to save memory */
102 #define CFG_PROMPT "ADS GCPlus # " /* Monitor Command Prompt */
103 #define CFG_CBSIZE 256 /* Console I/O Buffer Size */
104 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
105 #define CFG_MAXARGS 16 /* max number of command args */
106 #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
108 #define CFG_MEMTEST_START 0xc0400000 /* memtest works on */
109 #define CFG_MEMTEST_END 0xc0800000 /* 4 ... 8 MB in DRAM */
111 #undef CFG_CLKS_IN_HZ /* everything, incl board info, in Hz */
113 #define CFG_LOAD_ADDR 0xc0000000 /* default load address */
115 #define CFG_HZ 3686400 /* incrementer freq: 3.6864 MHz */
116 #define CFG_CPUSPEED 0x0a /* set core clock to 206MHz */
118 /* valid baudrates */
119 #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
121 /*-----------------------------------------------------------------------
124 * The stack sizes are set up in start.S using the settings below
126 #define CONFIG_STACKSIZE (128*1024) /* regular stack */
127 #ifdef CONFIG_USE_IRQ
128 #define CONFIG_STACKSIZE_IRQ (4*1024) /* IRQ stack */
129 #define CONFIG_STACKSIZE_FIQ (4*1024) /* FIQ stack */
132 /*-----------------------------------------------------------------------
133 * Physical Memory Map
135 #define CONFIG_NR_DRAM_BANKS 2 /* we have 2 banks of DRAM */
136 #define PHYS_SDRAM_1 0xc0000000 /* SDRAM Bank #1 */
137 #define PHYS_SDRAM_1_SIZE 0x01000000 /* 16 MB */
138 #define PHYS_SDRAM_2 0xc8000000 /* SDRAM Bank #2 */
139 #define PHYS_SDRAM_2_SIZE 0x01000000 /* 16 MB */
142 #define PHYS_FLASH_1 0x08000000 /* Flash Bank #1 */
143 #define PHYS_FLASH_SIZE 0x00800000 /* 8 MB */
144 #define PHYS_FLASH_BANK_SIZE 0x01000000 /* 16 MB Banks */
145 #define PHYS_FLASH_SECT_SIZE 0x00040000 /* 256 KB sectors (x2) */
147 #define CFG_FLASH_BASE PHYS_FLASH_1
149 /*-----------------------------------------------------------------------
150 * FLASH and environment organization
153 #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
154 #define CFG_MAX_FLASH_SECT 128 /* max number of sectors on one chip */
156 /* timeout values are in ticks */
157 #define CFG_FLASH_ERASE_TOUT (2*CFG_HZ) /* Timeout for Flash Erase */
158 #define CFG_FLASH_WRITE_TOUT (2*CFG_HZ) /* Timeout for Flash Write */
160 /* REVISIT: This doesn't work on ADS GCPlus just yet: */
161 #define CFG_FLASH_CFI 1 /* flash is CFI conformant */
162 #define CFG_FLASH_CFI_DRIVER 1 /* use common cfi driver */
163 #define CFG_FLASH_USE_BUFFER_WRITE 1 /* use buffered writes (20x faster) */
164 #define CFG_MAX_FLASH_BANKS 1 /* max # of memory banks */
165 #define CFG_FLASH_INCREMENT 0 /* there is only one bank */
166 #define CFG_MAX_FLASH_SECT 128 /* max # of sectors on one chip */
167 /*#define CFG_FLASH_PROTECTION 1 /--* hardware flash protection */
168 #define CFG_FLASH_BANKS_LIST { CFG_FLASH_BASE }
171 #define CFG_ENV_IS_IN_FLASH 1
172 #define CFG_ENV_ADDR (PHYS_FLASH_1 + PHYS_FLASH_SECT_SIZE) /* Addr of Environment Sector */
173 #define CFG_ENV_SIZE PHYS_FLASH_SECT_SIZE
175 #endif /* __CONFIG_H */