4 * Configuration settings for the MX31ADS Freescale board.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 of
9 * the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include <asm/arch/mx31-regs.h>
27 /* High Level Configuration Options */
28 #define CONFIG_ARM1136 1 /* This is an arm1136 CPU core */
29 #define CONFIG_MX31 1 /* in a mx31 */
30 #define CONFIG_MX31_HCLK_FREQ 26000000 /* RedBoot says 26MHz */
31 #define CONFIG_MX31_CLK32 32768
33 #define CONFIG_DISPLAY_CPUINFO
34 #define CONFIG_DISPLAY_BOARDINFO
37 * Disabled for now due to build problems under Debian and a significant increase
38 * in the final file size: 144260 vs. 109536 Bytes.
41 #define CONFIG_OF_LIBFDT 1
43 #define CONFIG_FIT_VERBOSE 1
46 #define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
47 #define CONFIG_SETUP_MEMORY_TAGS 1
48 #define CONFIG_INITRD_TAG 1
51 * Size of malloc() pool
53 #define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128 * 1024)
54 #define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
60 #define CONFIG_MX31_UART 1
61 #define CFG_MX31_UART1 1
63 #define CONFIG_HARD_SPI 1
64 #define CONFIG_MXC_SPI 1
65 #define CONFIG_DEFAULT_SPI_BUS 1
66 #define CONFIG_DEFAULT_SPI_MODE (SPI_MODE_2 | SPI_CS_HIGH)
68 #define CONFIG_RTC_MC13783 1
70 /* allow to overwrite serial and ethaddr */
71 #define CONFIG_ENV_OVERWRITE
72 #define CONFIG_CONS_INDEX 1
73 #define CONFIG_BAUDRATE 115200
74 #define CFG_BAUDRATE_TABLE {9600, 19200, 38400, 57600, 115200}
76 /***********************************************************
78 ***********************************************************/
80 #include <config_cmd_default.h>
82 #define CONFIG_CMD_PING
83 #define CONFIG_CMD_DHCP
84 #define CONFIG_CMD_SPI
85 #define CONFIG_CMD_DATE
87 #define CONFIG_BOOTDELAY 3
89 #define CONFIG_LOADADDR 0x80800000 /* loadaddr env var */
91 #define CONFIG_EXTRA_ENV_SETTINGS \
93 "uboot_addr=0xa0000000\0" \
94 "uboot=mx31ads/u-boot.bin\0" \
95 "kernel=mx31ads/uImage\0" \
96 "nfsroot=/opt/eldk/arm\0" \
97 "bootargs_base=setenv bootargs console=ttymxc0,115200\0" \
98 "bootargs_nfs=setenv bootargs ${bootargs} root=/dev/nfs " \
99 "ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
100 "bootcmd=run bootcmd_net\0" \
101 "bootcmd_net=run bootargs_base bootargs_nfs; " \
102 "tftpboot ${loadaddr} ${kernel}; bootm\0" \
103 "prg_uboot=tftpboot ${loadaddr} ${uboot}; " \
104 "protect off ${uboot_addr} 0xa003ffff; " \
105 "erase ${uboot_addr} 0xa003ffff; " \
106 "cp.b ${loadaddr} ${uboot_addr} ${filesize}; " \
107 "setenv filesize; saveenv\0"
109 #define CONFIG_DRIVER_CS8900 1
110 #define CS8900_BASE 0xb4020300
111 #define CS8900_BUS16 1 /* follow the Linux driver */
114 * The MX31ADS board seems to have a hardware "peculiarity" confirmed under
115 * U-Boot, RedBoot and Linux: the ethernet Rx signal is reaching the CS8900A
116 * controller inverted. The controller is capable of detecting and correcting
117 * this, but it needs 4 network packets for that. Which means, at startup, you
118 * will not receive answers to the first 4 packest, unless there have been some
119 * broadcasts on the network, or your board is on a hub. Reducing the ARP
120 * timeout from default 5 seconds to 200ms we speed up the initial TFTP
121 * transfer, should the user wish one, significantly.
123 #define CONFIG_ARP_TIMEOUT 200UL
126 * Miscellaneous configurable options
128 #define CFG_LONGHELP /* undef to save memory */
129 #define CFG_PROMPT "=> "
130 #define CFG_CBSIZE 256 /* Console I/O Buffer Size */
131 /* Print Buffer Size */
132 #define CFG_PBSIZE (CFG_CBSIZE + sizeof(CFG_PROMPT) + 16)
133 #define CFG_MAXARGS 16 /* max number of command args */
134 #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
136 #define CFG_MEMTEST_START 0 /* memtest works on */
137 #define CFG_MEMTEST_END 0x10000
139 #undef CFG_CLKS_IN_HZ /* everything, incl board info, in Hz */
141 #define CFG_LOAD_ADDR CONFIG_LOADADDR
143 #define CFG_HZ CONFIG_MX31_CLK32 /* use 32kHz clock as source */
145 #define CONFIG_CMDLINE_EDITING 1
147 /*-----------------------------------------------------------------------
150 * The stack sizes are set up in start.S using the settings below
152 #define CONFIG_STACKSIZE (128 * 1024) /* regular stack */
154 /*-----------------------------------------------------------------------
155 * Physical Memory Map
157 #define CONFIG_NR_DRAM_BANKS 1
158 #define PHYS_SDRAM_1 CSD0_BASE
159 #define PHYS_SDRAM_1_SIZE (128 * 1024 * 1024)
161 /*-----------------------------------------------------------------------
162 * FLASH and environment organization
164 #define CFG_FLASH_BASE CS0_BASE
165 #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
166 #define CFG_MAX_FLASH_SECT 262 /* max number of sectors on one chip */
167 #define CFG_MONITOR_BASE CFG_FLASH_BASE /* Monitor at beginning of flash */
168 #define CFG_MONITOR_LEN (256 * 1024) /* Reserve 256KiB */
170 #define CFG_ENV_IS_IN_FLASH 1
171 #define CFG_ENV_SECT_SIZE (32 * 1024)
172 #define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
174 /* Address and size of Redundant Environment Sector */
175 #define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET + CFG_ENV_SIZE)
176 #define CFG_ENV_SIZE_REDUND CFG_ENV_SIZE
178 /* S29WS256N NOR flash has 4 32KiB small sectors at the beginning and at the end.
179 * The rest of 32MiB is in 128KiB big sectors. U-Boot occupies the low 4 sectors,
180 * if we put environment next to it, we will have to occupy 128KiB for it.
181 * Putting it at the top of flash we use only 32KiB. */
182 #define CFG_ENV_ADDR (CFG_MONITOR_BASE + CFG_ENV_SECT_SIZE)
184 /*-----------------------------------------------------------------------
185 * CFI FLASH driver setup
187 #define CFG_FLASH_CFI 1 /* Flash memory is CFI compliant */
188 #define CONFIG_FLASH_CFI_DRIVER 1 /* Use drivers/cfi_flash.c */
189 #define CONFIG_FLASH_SPANSION_S29WS_N 1 /* A non-standard buffered write algorithm */
190 #define CFG_FLASH_USE_BUFFER_WRITE 1 /* Use buffered writes (~10x faster) */
191 #define CFG_FLASH_PROTECTION 1 /* Use hardware sector protection */
196 #undef CONFIG_JFFS2_CMDLINE
197 #define CONFIG_JFFS2_DEV "nor0"
199 #endif /* __CONFIG_H */