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/*
* (C) Copyright 2005 REA Elektronik GmbH <www.rea.de>
* Anders Larsen <alarsen@rea.de>
*
* Configuation settings for the Cogent CSB637 board.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __CONFIG_H
#define __CONFIG_H
/* ARM asynchronous clock */
#define AT91C_MAIN_CLOCK 184320000 /* from 3.6864 MHz crystal (3686400 * 50) */
#define AT91C_MASTER_CLOCK 46080000 /* (AT91C_MAIN_CLOCK/4) peripheral clock */
#define AT91_SLOW_CLOCK 32768 /* slow clock */
#define CONFIG_ARM920T 1 /* This is an ARM920T Core */
#define CONFIG_AT91RM9200 1 /* It's an Atmel AT91RM9200 SoC */
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
#define USE_920T_MMU 1
#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
#define CONFIG_SETUP_MEMORY_TAGS 1
#define CONFIG_INITRD_TAG 1
#ifndef CONFIG_SKIP_LOWLEVEL_INIT
#define CFG_USE_MAIN_OSCILLATOR 1
/* flash */
#define MC_PUIA_VAL 0x00000000
#define MC_PUP_VAL 0x00000000
#define MC_PUER_VAL 0x00000000
#define MC_ASR_VAL 0x00000000
#define MC_AASR_VAL 0x00000000
#define EBI_CFGR_VAL 0x00000000
#define SMC2_CSR_VAL 0x00003284 /* 16bit, 2 TDF, 4 WS */
/* clocks */
#define PLLAR_VAL 0x2031BE01 /* 184.320000 MHz for PCK */
#define PLLBR_VAL 0x128A3E19 /* 47.996928 MHz (divider by 2 for USB) */
#define MCKR_VAL 0x00000302 /* PCK/4 = MCK Master Clock = 46.080000 MHz from PLLA */
/* sdram */
#define PIOC_ASR_VAL 0xFFFF0000 /* Configure PIOC as peripheral (D16/D31) */
#define PIOC_BSR_VAL 0x00000000
#define PIOC_PDR_VAL 0xFFFF0000
#define EBI_CSA_VAL 0x00000002 /* CS1=SDRAM */
#define SDRC_CR_VAL 0x21914159 /* set up the SDRAM */
#define SDRAM 0x20000000 /* address of the SDRAM */
#define SDRAM1 0x20000080 /* address of the SDRAM */
#define SDRAM_VAL 0x00000000 /* value written to SDRAM */
#define SDRC_MR_VAL 0x00000002 /* Precharge All */
#define SDRC_MR_VAL1 0x00000004 /* refresh */
#define SDRC_MR_VAL2 0x00000003 /* Load Mode Register */
#define SDRC_MR_VAL3 0x00000000 /* Normal Mode */
#define SDRC_TR_VAL 0x000002E0 /* Write refresh rate */
#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
/*
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
#define CONFIG_BAUDRATE 38400
#define CFG_AT91C_BRGR_DIVISOR 75 /* hardcode so no __divsi3 : AT91C_MASTER_CLOCK / baudrate / 16 */
/*
* Hardware drivers
*/
/* define one of these to choose the DBGU, USART0 or USART1 as console */
#define CONFIG_DBGU
#undef CONFIG_USART0
#undef CONFIG_USART1
#undef CONFIG_HWFLOW /* don't include RTS/CTS flow control support */
#undef CONFIG_MODEM_SUPPORT /* disable modem initialization stuff */
#define CONFIG_BOOTDELAY 3
/* #define CONFIG_ENV_OVERWRITE 1 */
#define CONFIG_COMMANDS \
((CONFIG_CMD_DFL | \
CFG_CMD_JFFS2 | \
CFG_CMD_DHCP | \
CFG_CMD_PING ) & \
~(CFG_CMD_BDI | \
CFG_CMD_IMI | \
CFG_CMD_AUTOSCRIPT | \
CFG_CMD_FPGA | \
CFG_CMD_MISC | \
CFG_CMD_LOADS ))
/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
#include <cmd_confdefs.h>
#define CFG_MAX_NAND_DEVICE 1 /* Max number of NAND devices */
#define SECTORSIZE 512
#define ADDR_COLUMN 1
#define ADDR_PAGE 2
#define ADDR_COLUMN_PAGE 3
#define NAND_ChipID_UNKNOWN 0x00
#define NAND_MAX_FLOORS 1
#define NAND_MAX_CHIPS 1
#define AT91_SMART_MEDIA_ALE (1 << 22) /* our ALE is AD22 */
#define AT91_SMART_MEDIA_CLE (1 << 21) /* our CLE is AD21 */
#define NAND_DISABLE_CE(nand) do { *AT91C_PIOC_SODR = AT91C_PIO_PC0;} while(0)
#define NAND_ENABLE_CE(nand) do { *AT91C_PIOC_CODR = AT91C_PIO_PC0;} while(0)
#define NAND_WAIT_READY(nand) while (!(*AT91C_PIOC_PDSR & AT91C_PIO_PC2))
#define WRITE_NAND_COMMAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr | AT91_SMART_MEDIA_CLE) = (__u8)(d); } while(0)
#define WRITE_NAND_ADDRESS(d, adr) do{ *(volatile __u8 *)((unsigned long)adr | AT91_SMART_MEDIA_ALE) = (__u8)(d); } while(0)
#define WRITE_NAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr) = (__u8)d; } while(0)
#define READ_NAND(adr) ((volatile unsigned char)(*(volatile __u8 *)(unsigned long)adr))
/* the following are NOP's in our implementation */
#define NAND_CTL_CLRALE(nandptr)
#define NAND_CTL_SETALE(nandptr)
#define NAND_CTL_CLRCLE(nandptr)
#define NAND_CTL_SETCLE(nandptr)
#define CONFIG_NR_DRAM_BANKS 1
#define PHYS_SDRAM 0x20000000
#define PHYS_SDRAM_SIZE 0x4000000 /* 64 megs */
#define CFG_MEMTEST_START PHYS_SDRAM
#define CFG_MEMTEST_END CFG_MEMTEST_START + PHYS_SDRAM_SIZE - 512*1024 - 4
#define CFG_ALT_MEMTEST 1
#define CFG_MEMTEST_SCRATCH CFG_MEMTEST_START + PHYS_SDRAM_SIZE - 4
#define CONFIG_DRIVER_ETHER
#define CONFIG_NET_RETRY_COUNT 20
#undef CONFIG_AT91C_USE_RMII
#undef CONFIG_HAS_DATAFLASH
#define CFG_SPI_WRITE_TOUT (5*CFG_HZ)
#define CFG_MAX_DATAFLASH_BANKS 0
#define CFG_MAX_DATAFLASH_PAGES 16384
#define CFG_DATAFLASH_LOGIC_ADDR_CS0 0xC0000000 /* Logical adress for CS0 */
#define CFG_DATAFLASH_LOGIC_ADDR_CS3 0xD0000000 /* Logical adress for CS3 */
/*
* FLASH Device configuration
*/
#define PHYS_FLASH_1 0x10000000
#define PHYS_FLASH_SIZE 0x800000 /* 8 megs main flash */
#define CFG_FLASH_BASE PHYS_FLASH_1
#define CFG_FLASH_CFI 1 /* flash is CFI conformant */
#define CFG_FLASH_CFI_DRIVER 1 /* use common cfi driver */
#define CFG_FLASH_EMPTY_INFO
#define CFG_FLASH_USE_BUFFER_WRITE 1 /* use buffered writes (20x faster) */
#define CFG_MAX_FLASH_BANKS 1 /* max # of memory banks */
#define CFG_FLASH_INCREMENT 0 /* there is only one bank */
#define CFG_FLASH_PROTECTION 1 /* hardware flash protection */
#define CFG_MAX_FLASH_SECT 64
#define CFG_JFFS2_FIRST_BANK 0
#define CFG_JFFS2_FIRST_SECTOR 3
#define CFG_JFFS2_NUM_BANKS 1
#undef CFG_ENV_IS_IN_DATAFLASH
#ifdef CFG_ENV_IS_IN_DATAFLASH
#define CFG_ENV_OFFSET 0x20000
#define CFG_ENV_ADDR (CFG_DATAFLASH_LOGIC_ADDR_CS0 + CFG_ENV_OFFSET)
#define CFG_ENV_SIZE 0x2000 /* 0x8000 */
#else
#define CFG_ENV_IS_IN_FLASH 1
#define CFG_ENV_ADDR (PHYS_FLASH_1 + 0x20000) /* after u-boot.bin */
#define CFG_ENV_SIZE 0x20000 /* sectors are 128K here */
#endif /* CFG_ENV_IS_IN_DATAFLASH */
#define CFG_LOAD_ADDR 0x21000000 /* default load address */
#define CFG_BAUDRATE_TABLE {115200, 57600, 38400, 19200, 9600 }
#define CFG_PROMPT "U-Boot> " /* Monitor Command Prompt */
#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
#define CFG_MAXARGS 16 /* max number of command args */
#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
#ifndef __ASSEMBLY__
/*-----------------------------------------------------------------------
* Board specific extension for bd_info
*
* This structure is embedded in the global bd_info (bd_t) structure
* and can be used by the board specific code (eg board/...)
*/
struct bd_info_ext {
/* helper variable for board environment handling
*
* env_crc_valid == 0 => uninitialised
* env_crc_valid > 0 => environment crc in flash is valid
* env_crc_valid < 0 => environment crc in flash is invalid
*/
int env_crc_valid;
};
#endif
#define CFG_HZ 1000
#define CFG_HZ_CLOCK AT91C_MASTER_CLOCK/2 /* AT91C_TC0_CMR is implicitly set to */
/* AT91C_TC_TIMER_DIV1_CLOCK */
#define CONFIG_STACKSIZE (32*1024) /* regular stack */
#ifdef CONFIG_USE_IRQ
#error CONFIG_USE_IRQ not supported
#endif
#endif
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