2 * Configuration settings for the Gumstix Overo board.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of
7 * the License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 #include <asm/sizes.h>
25 * High Level Configuration Options
27 #define CONFIG_ARMCORTEXA8 1 /* This is an ARM V7 CPU core */
28 #define CONFIG_OMAP 1 /* in a TI OMAP core */
29 #define CONFIG_OMAP34XX 1 /* which is a 34XX */
30 #define CONFIG_OMAP3430 1 /* which is in a 3430 */
31 #define CONFIG_OMAP3_OVERO 1 /* working with overo */
33 #include <asm/arch/cpu.h> /* get chip and board defs */
34 #include <asm/arch/omap3.h>
37 * Display CPU and Board information
39 #define CONFIG_DISPLAY_CPUINFO 1
40 #define CONFIG_DISPLAY_BOARDINFO 1
43 #define V_OSCK 26000000 /* Clock output from T2 */
44 #define V_SCLK (V_OSCK >> 1)
46 #undef CONFIG_USE_IRQ /* no support for IRQs */
47 #define CONFIG_MISC_INIT_R
49 #define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
50 #define CONFIG_SETUP_MEMORY_TAGS 1
51 #define CONFIG_INITRD_TAG 1
52 #define CONFIG_REVISION_TAG 1
55 * Size of malloc() pool
57 #define CONFIG_ENV_SIZE SZ_128K /* Total Size Environment */
59 #define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + SZ_128K)
60 #define CONFIG_SYS_GBL_DATA_SIZE 128 /* bytes reserved for */
68 * NS16550 Configuration
70 #define V_NS16550_CLK 48000000 /* 48MHz (APLL96/2) */
72 #define CONFIG_SYS_NS16550
73 #define CONFIG_SYS_NS16550_SERIAL
74 #define CONFIG_SYS_NS16550_REG_SIZE (-4)
75 #define CONFIG_SYS_NS16550_CLK V_NS16550_CLK
78 * select serial console configuration
80 #define CONFIG_CONS_INDEX 3
81 #define CONFIG_SYS_NS16550_COM3 OMAP34XX_UART3
82 #define CONFIG_SERIAL3 3
84 /* allow to overwrite serial and ethaddr */
85 #define CONFIG_ENV_OVERWRITE
86 #define CONFIG_BAUDRATE 115200
87 #define CONFIG_SYS_BAUDRATE_TABLE {4800, 9600, 19200, 38400, 57600, \
90 #define CONFIG_OMAP3_MMC 1
91 #define CONFIG_DOS_PARTITION 1
93 /* commands to include */
94 #include <config_cmd_default.h>
96 #define CONFIG_CMD_EXT2 /* EXT2 Support */
97 #define CONFIG_CMD_FAT /* FAT support */
98 #define CONFIG_CMD_JFFS2 /* JFFS2 Support */
100 #define CONFIG_CMD_I2C /* I2C serial bus support */
101 #define CONFIG_CMD_MMC /* MMC support */
102 #define CONFIG_CMD_NAND /* NAND support */
104 #undef CONFIG_CMD_FLASH /* flinfo, erase, protect */
105 #undef CONFIG_CMD_FPGA /* FPGA configuration Support */
106 #undef CONFIG_CMD_IMI /* iminfo */
107 #undef CONFIG_CMD_IMLS /* List all found images */
108 #undef CONFIG_CMD_NET /* bootp, tftpboot, rarpboot */
109 #undef CONFIG_CMD_NFS /* NFS support */
111 #define CONFIG_SYS_NO_FLASH
112 #define CONFIG_SYS_I2C_SPEED 100000
113 #define CONFIG_SYS_I2C_SLAVE 1
114 #define CONFIG_SYS_I2C_BUS 0
115 #define CONFIG_SYS_I2C_BUS_SELECT 1
116 #define CONFIG_DRIVER_OMAP34XX_I2C 1
121 #define CONFIG_NAND_OMAP_GPMC
122 #define CONFIG_SYS_NAND_ADDR NAND_BASE /* physical address */
124 #define CONFIG_SYS_NAND_BASE NAND_BASE /* physical address */
127 #define GPMC_NAND_ECC_LP_x16_LAYOUT 1
129 #define CONFIG_SYS_MAX_NAND_DEVICE 1 /* Max number of NAND */
131 #define CONFIG_SYS_64BIT_VSPRINTF /* needed for nand_util.c */
133 #define CONFIG_JFFS2_NAND
134 /* nand device jffs2 lives on */
135 #define CONFIG_JFFS2_DEV "nand0"
136 /* start of jffs2 partition */
137 #define CONFIG_JFFS2_PART_OFFSET 0x680000
138 #define CONFIG_JFFS2_PART_SIZE 0xf980000 /* size of jffs2 */
141 /* Environment information */
142 #define CONFIG_BOOTDELAY 5
144 #define CONFIG_EXTRA_ENV_SETTINGS \
145 "loadaddr=0x82000000\0" \
146 "console=ttyS2,115200n8\0" \
147 "videomode=1024x768@60,vxres=1024,vyres=768\0" \
148 "videospec=omapfb:vram:2M,vram:4M\0" \
149 "mmcargs=setenv bootargs console=${console} " \
150 "video=${videospec},mode:${videomode} " \
151 "root=/dev/mmcblk0p2 rw " \
152 "rootfstype=ext3 rootwait\0" \
153 "nandargs=setenv bootargs console=${console} " \
154 "video=${videospec},mode:${videomode} " \
155 "root=/dev/mtdblock4 rw " \
156 "rootfstype=jffs2\0" \
157 "loadbootscript=fatload mmc 0 ${loadaddr} boot.scr\0" \
158 "bootscript=echo Running bootscript from mmc ...; " \
159 "source ${loadaddr}\0" \
160 "loaduimage=fatload mmc 0 ${loadaddr} uImage\0" \
161 "mmcboot=echo Booting from mmc ...; " \
163 "bootm ${loadaddr}\0" \
164 "nandboot=echo Booting from nand ...; " \
166 "nand read ${loadaddr} 280000 400000; " \
167 "bootm ${loadaddr}\0" \
169 #define CONFIG_BOOTCOMMAND \
170 "if mmc init; then " \
171 "if run loadbootscript; then " \
174 "if run loaduimage; then " \
176 "else run nandboot; " \
179 "else run nandboot; fi"
181 #define CONFIG_AUTO_COMPLETE 1
183 * Miscellaneous configurable options
185 #define V_PROMPT "Overo # "
187 #define CONFIG_SYS_LONGHELP /* undef to save memory */
188 #define CONFIG_SYS_HUSH_PARSER /* use "hush" command parser */
189 #define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
190 #define CONFIG_SYS_PROMPT V_PROMPT
191 #define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
192 /* Print Buffer Size */
193 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
194 sizeof(CONFIG_SYS_PROMPT) + 16)
195 #define CONFIG_SYS_MAXARGS 16 /* max number of command */
197 /* Boot Argument Buffer Size */
198 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
199 /* memtest works on */
200 #define CONFIG_SYS_MEMTEST_START (OMAP34XX_SDRC_CS0)
201 #define CONFIG_SYS_MEMTEST_END (OMAP34XX_SDRC_CS0 + \
202 0x01F00000) /* 31MB */
204 #define CONFIG_SYS_LOAD_ADDR (OMAP34XX_SDRC_CS0) /* default load */
207 * OMAP3 has 12 GP timers, they can be driven by the system clock
208 * (12/13/16.8/19.2/38.4MHz) or by 32KHz clock. We use 13MHz (V_SCLK).
209 * This rate is divided by a local divisor.
211 #define CONFIG_SYS_TIMERBASE OMAP34XX_GPT2
212 #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */
213 #define CONFIG_SYS_HZ 1000
215 /*-----------------------------------------------------------------------
218 * The stack sizes are set up in start.S using the settings below
220 #define CONFIG_STACKSIZE SZ_128K /* regular stack */
221 #ifdef CONFIG_USE_IRQ
222 #define CONFIG_STACKSIZE_IRQ SZ_4K /* IRQ stack */
223 #define CONFIG_STACKSIZE_FIQ SZ_4K /* FIQ stack */
226 /*-----------------------------------------------------------------------
227 * Physical Memory Map
229 #define CONFIG_NR_DRAM_BANKS 2 /* CS1 may or may not be populated */
230 #define PHYS_SDRAM_1 OMAP34XX_SDRC_CS0
231 #define PHYS_SDRAM_1_SIZE SZ_32M /* at least 32 meg */
232 #define PHYS_SDRAM_2 OMAP34XX_SDRC_CS1
234 /* SDRAM Bank Allocation method */
237 /*-----------------------------------------------------------------------
238 * FLASH and environment organization
241 /* **** PISMO SUPPORT *** */
243 /* Configure the PISMO */
244 #define PISMO1_NAND_SIZE GPMC_SIZE_128M
245 #define PISMO1_ONEN_SIZE GPMC_SIZE_128M
247 #define CONFIG_SYS_MAX_FLASH_SECT 520 /* max number of sectors on */
249 #define CONFIG_SYS_MAX_FLASH_BANKS 2 /* max number of flash banks */
250 #define CONFIG_SYS_MONITOR_LEN SZ_256K /* Reserve 2 sectors */
252 #define CONFIG_SYS_FLASH_BASE boot_flash_base
254 /* Monitor at start of flash */
255 #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
256 #define CONFIG_SYS_ONENAND_BASE ONENAND_MAP
258 #define CONFIG_ENV_IS_IN_NAND 1
259 #define ONENAND_ENV_OFFSET 0x240000 /* environment starts here */
260 #define SMNAND_ENV_OFFSET 0x240000 /* environment starts here */
262 #define CONFIG_SYS_ENV_SECT_SIZE boot_flash_sec
263 #define CONFIG_ENV_OFFSET boot_flash_off
264 #define CONFIG_ENV_ADDR SMNAND_ENV_OFFSET
266 /*-----------------------------------------------------------------------
267 * CFI FLASH driver setup
269 /* timeout values are in ticks */
270 #define CONFIG_SYS_FLASH_ERASE_TOUT (100 * CONFIG_SYS_HZ)
271 #define CONFIG_SYS_FLASH_WRITE_TOUT (100 * CONFIG_SYS_HZ)
273 /* Flash banks JFFS2 should use */
274 #define CONFIG_SYS_MAX_MTD_BANKS (CONFIG_SYS_MAX_FLASH_BANKS + \
275 CONFIG_SYS_MAX_NAND_DEVICE)
276 #define CONFIG_SYS_JFFS2_MEM_NAND
277 /* use flash_info[2] */
278 #define CONFIG_SYS_JFFS2_FIRST_BANK CONFIG_SYS_MAX_FLASH_BANKS
279 #define CONFIG_SYS_JFFS2_NUM_BANKS 1
282 extern gpmc_csx_t *nand_cs_base;
283 extern gpmc_t *gpmc_cfg_base;
284 extern unsigned int boot_flash_base;
285 extern volatile unsigned int boot_flash_env_addr;
286 extern unsigned int boot_flash_off;
287 extern unsigned int boot_flash_sec;
288 extern unsigned int boot_flash_type;
291 #endif /* __CONFIG_H */