include/configs/csb637.h

   1 /*
   2  * (C) Copyright 2005 REA Elektronik GmbH <www.rea.de>
   3  * Anders Larsen <alarsen@rea.de>
   4  *
   5  * Configuation settings for the Cogent CSB637 board.
   6  *
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #ifndef __CONFIG_H
  27 #define __CONFIG_H
  28
  29 /* ARM asynchronous clock */
  30 #define AT91C_MAIN_CLOCK        184320000       /* from 3.6864 MHz crystal (3686400 * 50) */
  31 #define AT91C_MASTER_CLOCK      46080000        /* (AT91C_MAIN_CLOCK/4) peripheral clock */
  32
  33 #define AT91_SLOW_CLOCK         32768   /* slow clock */
  34
  35 #define CONFIG_ARM920T          1       /* This is an ARM920T Core      */
  36 #define CONFIG_AT91RM9200       1       /* It's an Atmel AT91RM9200 SoC */
  37 #define CONFIG_CSB637           1       /* on a CSB637 board            */
  38 #undef  CONFIG_USE_IRQ                  /* we don't need IRQ/FIQ stuff  */
  39 #define USE_920T_MMU            1
  40
  41 #define CONFIG_CMDLINE_TAG      1       /* enable passing of ATAGs      */
  42 #define CONFIG_SETUP_MEMORY_TAGS 1
  43 #define CONFIG_INITRD_TAG       1
  44
  45 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
  46 #define CONFIG_SYS_USE_MAIN_OSCILLATOR          1
  47 /* flash */
  48 #define CONFIG_SYS_MC_PUIA_VAL  0x00000000
  49 #define CONFIG_SYS_MC_PUP_VAL   0x00000000
  50 #define CONFIG_SYS_MC_PUER_VAL  0x00000000
  51 #define CONFIG_SYS_MC_ASR_VAL   0x00000000
  52 #define CONFIG_SYS_MC_AASR_VAL  0x00000000
  53 #define CONFIG_SYS_EBI_CFGR_VAL 0x00000000
  54 #define CONFIG_SYS_SMC_CSR0_VAL 0x00003284 /* 16bit, 2 TDF, 4 WS */
  55
  56 /* clocks */
  57 #define CONFIG_SYS_PLLAR_VAL    0x2031BE01 /* 184.320000 MHz for PCK */
  58 #define CONFIG_SYS_PLLBR_VAL    0x128A3E19 /* 47.996928 MHz (divider by 2 for USB) */
  59 #define CONFIG_SYS_MCKR_VAL     0x00000302 /* PCK/4 = MCK Master Clock = 46.080000 MHz from PLLA */
  60
  61 /* sdram */
  62 #define CONFIG_SYS_PIOC_ASR_VAL 0xFFFF0000 /* Configure PIOC as peripheral (D16/D31) */
  63 #define CONFIG_SYS_PIOC_BSR_VAL 0x00000000
  64 #define CONFIG_SYS_PIOC_PDR_VAL 0xFFFF0000
  65 #define CONFIG_SYS_EBI_CSA_VAL  0x00000002 /* CS1=CONFIG_SYS_SDRAM */
  66 #define CONFIG_SYS_SDRC_CR_VAL  0x21914159 /* set up the CONFIG_SYS_SDRAM */
  67 #define CONFIG_SYS_SDRAM        0x20000000 /* address of the CONFIG_SYS_SDRAM */
  68 #define CONFIG_SYS_SDRAM1       0x20000080 /* address of the CONFIG_SYS_SDRAM */
  69 #define CONFIG_SYS_SDRAM_VAL    0x00000000 /* value written to CONFIG_SYS_SDRAM */
  70 #define CONFIG_SYS_SDRC_MR_VAL  0x00000002 /* Precharge All */
  71 #define CONFIG_SYS_SDRC_MR_VAL1 0x00000004 /* refresh */
  72 #define CONFIG_SYS_SDRC_MR_VAL2 0x00000003 /* Load Mode Register */
  73 #define CONFIG_SYS_SDRC_MR_VAL3 0x00000000 /* Normal Mode */
  74 #define CONFIG_SYS_SDRC_TR_VAL  0x000002E0 /* Write refresh rate */
  75 #else
  76 #define CONFIG_SKIP_RELOCATE_UBOOT
  77 #endif  /* CONFIG_SKIP_LOWLEVEL_INIT */
  78 /*
  79  * Size of malloc() pool
  80  */
  81 #define CONFIG_SYS_MALLOC_LEN   (CONFIG_ENV_SIZE + 128*1024)
  82 #define CONFIG_SYS_GBL_DATA_SIZE        128     /* size in bytes reserved for initial data */
  83
  84 #define CONFIG_BAUDRATE 115200
  85
  86 #define CONFIG_SYS_AT91C_BRGR_DIVISOR   75      /* hardcode so no __divsi3 : AT91C_MASTER_CLOCK / baudrate / 16 */
  87
  88 /*
  89  * Hardware drivers
  90  */
  91
  92 /* define one of these to choose the DBGU, USART0  or USART1 as console */
  93 #define CONFIG_DBGU
  94 #undef CONFIG_USART0
  95 #undef CONFIG_USART1
  96
  97 #undef  CONFIG_HWFLOW                   /* don't include RTS/CTS flow control support   */
  98
  99 #undef  CONFIG_MODEM_SUPPORT            /* disable modem initialization stuff */
 100
 101 #define CONFIG_BOOTDELAY      3
 102 /* #define CONFIG_ENV_OVERWRITE 1 */
 103
 104
 105 /*
 106  * BOOTP options
 107  */
 108 #define CONFIG_BOOTP_BOOTFILESIZE
 109 #define CONFIG_BOOTP_BOOTPATH
 110 #define CONFIG_BOOTP_GATEWAY
 111 #define CONFIG_BOOTP_HOSTNAME
 112
 113
 114 /*
 115  * Command line configuration.
 116  */
 117 #include <config_cmd_default.h>
 118
 119 #define CONFIG_CMD_DHCP
 120 #define CONFIG_CMD_JFFS2
 121 #define CONFIG_CMD_PING
 122
 123 #ifdef  NAND_SUPPORT_HAS_BEEN_FIXED     /* NAND support is broken / unimplemented */
 124
 125 #define CONFIG_SYS_MAX_NAND_DEVICE      1       /* Max number of NAND devices           */
 126 #define SECTORSIZE 512
 127
 128 #define ADDR_COLUMN 1
 129 #define ADDR_PAGE 2
 130 #define ADDR_COLUMN_PAGE 3
 131
 132 #define NAND_ChipID_UNKNOWN     0x00
 133 #define NAND_MAX_FLOORS 1
 134 #define NAND_MAX_CHIPS 1
 135
 136 #define AT91_SMART_MEDIA_ALE (1 << 22)  /* our ALE is AD22 */
 137 #define AT91_SMART_MEDIA_CLE (1 << 21)  /* our CLE is AD21 */
 138
 139 #include <asm/arch/AT91RM9200.h>        /* needed for port definitions */
 140 #define NAND_DISABLE_CE(nand) do { *AT91C_PIOC_SODR = AT91C_PIO_PC0;} while(0)
 141 #define NAND_ENABLE_CE(nand) do { *AT91C_PIOC_CODR = AT91C_PIO_PC0;} while(0)
 142
 143 #define NAND_WAIT_READY(nand) while (!(*AT91C_PIOC_PDSR & AT91C_PIO_PC2))
 144
 145 #define WRITE_NAND_COMMAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr | AT91_SMART_MEDIA_CLE) = (__u8)(d); } while(0)
 146 #define WRITE_NAND_ADDRESS(d, adr) do{ *(volatile __u8 *)((unsigned long)adr | AT91_SMART_MEDIA_ALE) = (__u8)(d); } while(0)
 147 #define WRITE_NAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr) = (__u8)d; } while(0)
 148 #define READ_NAND(adr) ((volatile unsigned char)(*(volatile __u8 *)(unsigned long)adr))
 149 /* the following are NOP's in our implementation */
 150 #define NAND_CTL_CLRALE(nandptr)
 151 #define NAND_CTL_SETALE(nandptr)
 152 #define NAND_CTL_CLRCLE(nandptr)
 153 #define NAND_CTL_SETCLE(nandptr)
 154
 155 #endif  /* NAND_SUPPORT_HAS_BEEN_FIXED */
 156
 157 #define CONFIG_NR_DRAM_BANKS 1
 158 #define PHYS_SDRAM                      0x20000000
 159 #define PHYS_SDRAM_SIZE                 0x4000000  /* 64 megs */
 160
 161 #define CONFIG_SYS_MEMTEST_START                PHYS_SDRAM
 162 #define CONFIG_SYS_MEMTEST_END                  CONFIG_SYS_MEMTEST_START + PHYS_SDRAM_SIZE - 512*1024 - 4
 163 #define CONFIG_SYS_ALT_MEMTEST                  1
 164 #define CONFIG_SYS_MEMTEST_SCRATCH              CONFIG_SYS_MEMTEST_START + PHYS_SDRAM_SIZE - 4
 165
 166 #define CONFIG_DRIVER_ETHER
 167 #define CONFIG_NET_RETRY_COUNT          20
 168 #undef CONFIG_AT91C_USE_RMII
 169
 170 #undef CONFIG_HAS_DATAFLASH
 171 #define CONFIG_SYS_SPI_WRITE_TOUT               (5*CONFIG_SYS_HZ)
 172 #define CONFIG_SYS_MAX_DATAFLASH_BANKS          0
 173 #define CONFIG_SYS_MAX_DATAFLASH_PAGES          16384
 174 #define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0     0xC0000000      /* Logical adress for CS0 */
 175 #define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS3     0xD0000000      /* Logical adress for CS3 */
 176
 177 /*
 178  * FLASH Device configuration
 179  */
 180 #define PHYS_FLASH_1                    0x10000000
 181 #define PHYS_FLASH_SIZE                 0x800000  /* 8 megs main flash */
 182 #define CONFIG_SYS_FLASH_BASE                   PHYS_FLASH_1
 183 #define CONFIG_SYS_FLASH_CFI            1       /* flash is CFI conformant      */
 184 #define CONFIG_FLASH_CFI_DRIVER 1       /* use common cfi driver        */
 185 #define CONFIG_SYS_FLASH_EMPTY_INFO
 186 #define CONFIG_SYS_FLASH_USE_BUFFER_WRITE 1     /* use buffered writes (20x faster) */
 187 #define CONFIG_SYS_MAX_FLASH_BANKS      1       /* max # of memory banks        */
 188 #define CONFIG_SYS_FLASH_INCREMENT      0       /* there is only one bank       */
 189 #define CONFIG_SYS_FLASH_PROTECTION     1       /* hardware flash protection    */
 190 #define CONFIG_SYS_MAX_FLASH_SECT               64
 191
 192 #define CONFIG_SYS_JFFS2_FIRST_BANK     0
 193 #define CONFIG_SYS_JFFS2_FIRST_SECTOR   3
 194 #define CONFIG_SYS_JFFS2_NUM_BANKS      1
 195
 196 #undef  CONFIG_ENV_IS_IN_DATAFLASH
 197
 198 #ifdef CONFIG_ENV_IS_IN_DATAFLASH
 199 #define CONFIG_ENV_OFFSET                       0x20000
 200 #define CONFIG_ENV_ADDR                 (CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + CONFIG_ENV_OFFSET)
 201 #define CONFIG_ENV_SIZE                 0x2000  /* 0x8000 */
 202 #else
 203 #define CONFIG_ENV_IS_IN_FLASH          1
 204 #define CONFIG_ENV_ADDR                 (PHYS_FLASH_1 + 0x20000)  /* after u-boot.bin */
 205 #define CONFIG_ENV_SIZE                 0x20000 /* sectors are 128K here */
 206 #endif  /* CONFIG_ENV_IS_IN_DATAFLASH */
 207
 208
 209 #define CONFIG_SYS_LOAD_ADDR            0x21000000  /* default load address */
 210
 211 #define CONFIG_SYS_BAUDRATE_TABLE       { 115200, 57600, 38400, 19200, 9600 }
 212
 213 #define CONFIG_SYS_PROMPT               "U-Boot> "      /* Monitor Command Prompt */
 214 #define CONFIG_SYS_CBSIZE               256             /* Console I/O Buffer Size */
 215 #define CONFIG_SYS_MAXARGS              16              /* max number of command args */
 216 #define CONFIG_SYS_PBSIZE               (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
 217
 218 #define CONFIG_SYS_HZ 1000
 219 #define CONFIG_SYS_HZ_CLOCK AT91C_MASTER_CLOCK/2        /* AT91C_TC0_CMR is implicitly set to */
 220                                                 /* AT91C_TC_TIMER_DIV1_CLOCK */
 221
 222 #define CONFIG_STACKSIZE        (32*1024)       /* regular stack */
 223
 224 #ifdef CONFIG_USE_IRQ
 225 #error CONFIG_USE_IRQ not supported
 226 #endif
 227
 228 #endif