1 /* 2 * (C) Copyright 2007-2008 3 * Stelian Pop <stelian.pop@leadtechdesign.com> 4 * Lead Tech Design <www.leadtechdesign.com> 5 * 6 * Configuation settings for the AT91SAM9RLEK board. 7 * 8 * See file CREDITS for list of people who contributed to this 9 * project. 10 * 11 * This program is free software; you can redistribute it and/or 12 * modify it under the terms of the GNU General Public License as 13 * published by the Free Software Foundation; either version 2 of 14 * the License, or (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 24 * MA 02111-1307 USA 25 */ 26 27 #ifndef __CONFIG_H 28 #define __CONFIG_H 29 30 /* ARM asynchronous clock */ 31 #define AT91_MAIN_CLOCK 200000000 /* from 12.000 MHz crystal */ 32 #define AT91_MASTER_CLOCK 100000000 /* peripheral = main / 2 */ 33 #define CFG_HZ 1000000 /* 1us resolution */ 34 35 #define AT91_SLOW_CLOCK 32768 /* slow clock */ 36 37 #define CONFIG_ARM926EJS 1 /* This is an ARM926EJS Core */ 38 #define CONFIG_AT91SAM9RL 1 /* It's an Atmel AT91SAM9RL SoC*/ 39 #define CONFIG_AT91SAM9RLEK 1 /* on an AT91SAM9RLEK Board */ 40 #undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */ 41 42 #define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */ 43 #define CONFIG_SETUP_MEMORY_TAGS 1 44 #define CONFIG_INITRD_TAG 1 45 46 #define CONFIG_SKIP_LOWLEVEL_INIT 47 #define CONFIG_SKIP_RELOCATE_UBOOT 48 49 /* 50 * Hardware drivers 51 */ 52 #define CONFIG_ATMEL_USART 1 53 #undef CONFIG_USART0 54 #undef CONFIG_USART1 55 #undef CONFIG_USART2 56 #define CONFIG_USART3 1 /* USART 3 is DBGU */ 57 58 #define CONFIG_BOOTDELAY 3 59 60 /* #define CONFIG_ENV_OVERWRITE 1 */ 61 62 /* 63 * Command line configuration. 64 */ 65 #include <config_cmd_default.h> 66 #undef CONFIG_CMD_BDI 67 #undef CONFIG_CMD_IMI 68 #undef CONFIG_CMD_AUTOSCRIPT 69 #undef CONFIG_CMD_FPGA 70 #undef CONFIG_CMD_LOADS 71 #undef CONFIG_CMD_IMLS 72 #undef CONFIG_CMD_NET 73 #undef CONFIG_CMD_USB 74 75 #define CONFIG_CMD_NAND 1 76 77 /* SDRAM */ 78 #define CONFIG_NR_DRAM_BANKS 1 79 #define PHYS_SDRAM 0x20000000 80 #define PHYS_SDRAM_SIZE 0x04000000 /* 64 megs */ 81 82 /* DataFlash */ 83 #define CONFIG_HAS_DATAFLASH 1 84 #define CFG_SPI_WRITE_TOUT (5*CFG_HZ) 85 #define CFG_MAX_DATAFLASH_BANKS 1 86 #define CFG_DATAFLASH_LOGIC_ADDR_CS0 0xC0000000 /* CS0 */ 87 #define AT91_SPI_CLK 15000000 88 #define DATAFLASH_TCSS (0x1a << 16) 89 #define DATAFLASH_TCHS (0x1 << 24) 90 91 /* NOR flash - not present */ 92 #define CFG_NO_FLASH 1 93 94 /* NAND flash */ 95 #define NAND_MAX_CHIPS 1 96 #define CFG_MAX_NAND_DEVICE 1 97 #define CFG_NAND_BASE 0x40000000 98 #define CFG_NAND_DBW_8 1 99 100 /* Ethernet - not present */ 101 102 /* USB - not supported */ 103 104 #define CFG_LOAD_ADDR 0x22000000 /* load address */ 105 106 #define CFG_MEMTEST_START PHYS_SDRAM 107 #define CFG_MEMTEST_END 0x23e00000 108 109 #define CFG_USE_DATAFLASH 1 110 #undef CFG_USE_NANDFLASH 111 112 #ifdef CFG_USE_DATAFLASH 113 114 /* bootstrap + u-boot + env + linux in dataflash on CS0 */ 115 #define CFG_ENV_IS_IN_DATAFLASH 1 116 #define CFG_MONITOR_BASE (CFG_DATAFLASH_LOGIC_ADDR_CS0 + 0x8400) 117 #define CFG_ENV_OFFSET 0x4200 118 #define CFG_ENV_ADDR (CFG_DATAFLASH_LOGIC_ADDR_CS0 + CFG_ENV_OFFSET) 119 #define CFG_ENV_SIZE 0x4200 120 #define CONFIG_BOOTCOMMAND "cp.b 0xC0042000 0x22000000 0x210000; bootm" 121 #define CONFIG_BOOTARGS "console=ttyS0,115200 " \ 122 "root=/dev/mtdblock0 " \ 123 "mtdparts=at91_nand:-(root) "\ 124 "rw rootfstype=jffs2" 125 126 #else /* CFG_USE_NANDFLASH */ 127 128 /* bootstrap + u-boot + env + linux in nandflash */ 129 #define CFG_ENV_IS_IN_NAND 1 130 #define CFG_ENV_OFFSET 0x60000 131 #define CFG_ENV_OFFSET_REDUND 0x80000 132 #define CFG_ENV_SIZE 0x20000 /* 1 sector = 128 kB */ 133 #define CONFIG_BOOTCOMMAND "nand read 0x22000000 0xA0000 0x200000; bootm" 134 #define CONFIG_BOOTARGS "console=ttyS0,115200 " \ 135 "root=/dev/mtdblock5 " \ 136 "mtdparts=at91_nand:128k(bootstrap)ro,256k(uboot)ro,128k(env1)ro,128k(env2)ro,2M(linux),-(root) " \ 137 "rw rootfstype=jffs2" 138 139 #endif 140 141 #define CONFIG_BAUDRATE 115200 142 #define CFG_BAUDRATE_TABLE {115200 , 19200, 38400, 57600, 9600 } 143 144 #define CFG_PROMPT "U-Boot> " 145 #define CFG_CBSIZE 256 146 #define CFG_MAXARGS 16 147 #define CFG_PBSIZE (CFG_CBSIZE + sizeof(CFG_PROMPT) + 16) 148 #define CFG_LONGHELP 1 149 #define CONFIG_CMDLINE_EDITING 1 150 151 #define ROUND(A, B) (((A) + (B)) & ~((B) - 1)) 152 /* 153 * Size of malloc() pool 154 */ 155 #define CFG_MALLOC_LEN ROUND(3 * CFG_ENV_SIZE + 128*1024, 0x1000) 156 #define CFG_GBL_DATA_SIZE 128 /* 128 bytes for initial data */ 157 158 #define CONFIG_STACKSIZE (32*1024) /* regular stack */ 159 160 #ifdef CONFIG_USE_IRQ 161 #error CONFIG_USE_IRQ not supported 162 #endif 163 164 #endif 165