mirror of
https://github.com/AsahiLinux/u-boot
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b988b8cd44
On the TQM885D the measurement of cpuclk with the PIT reference timer ist not necessary. Since all module variants use the same external 10 MHz oscillator, the cpuclk only depends on the PLL configuration - which is readable by software. Signed-off-by: Martin Krause <martin.krause@tqs.de>
498 lines
17 KiB
C
498 lines
17 KiB
C
/*
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* (C) Copyright 2000-2005
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (C) Copyright 2006
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* Martin Krause, TQ-Systems GmBH, martin.krause@tqs.de
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* board/config.h - configuration options, board specific
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*/
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#ifndef __CONFIG_H
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#define __CONFIG_H
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/*
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* High Level Configuration Options
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* (easy to change)
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*/
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#define CONFIG_MPC885 1 /* This is a MPC885 CPU */
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#define CONFIG_TQM885D 1 /* ...on a TQM88D module */
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#define CONFIG_8xx_OSCLK 10000000 /* 10 MHz - PLL input clock */
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#define CFG_8xx_CPUCLK_MIN 15000000 /* 15 MHz - CPU minimum clock */
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#define CFG_8xx_CPUCLK_MAX 133000000 /* 133 MHz - CPU maximum clock */
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#define CONFIG_8xx_CPUCLK_DEFAULT 66000000 /* 50 MHz - CPU default clock */
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/* (it will be used if there is no */
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/* 'cpuclk' variable with valid value) */
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#define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
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#define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */
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#define CONFIG_BOOTCOUNT_LIMIT
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#define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
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#define CONFIG_BOARD_TYPES 1 /* support board types */
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#define CONFIG_PREBOOT "echo;" \
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"echo Type \"run flash_nfs\" to mount root filesystem over NFS;" \
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"echo"
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#undef CONFIG_BOOTARGS
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#define CONFIG_EXTRA_ENV_SETTINGS \
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"netdev=eth0\0" \
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"nfsargs=setenv bootargs root=/dev/nfs rw " \
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"nfsroot=${serverip}:${rootpath}\0" \
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"ramargs=setenv bootargs root=/dev/ram rw\0" \
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"addip=setenv bootargs ${bootargs} " \
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"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \
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":${hostname}:${netdev}:off panic=1\0" \
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"flash_nfs=run nfsargs addip;" \
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"bootm ${kernel_addr}\0" \
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"flash_self=run ramargs addip;" \
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"bootm ${kernel_addr} ${ramdisk_addr}\0" \
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"net_nfs=tftp 200000 ${bootfile};run nfsargs addip;bootm\0" \
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"rootpath=/opt/eldk/ppc_8xx\0" \
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"bootfile=/tftpboot/TQM866M/uImage\0" \
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"kernel_addr=40080000\0" \
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"ramdisk_addr=40180000\0" \
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""
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#define CONFIG_BOOTCOMMAND "run flash_self"
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#define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
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#undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */
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#undef CONFIG_WATCHDOG /* watchdog disabled */
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#define CONFIG_STATUS_LED 1 /* Status LED enabled */
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#undef CONFIG_CAN_DRIVER /* CAN Driver support disabled */
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/* enable I2C and select the hardware/software driver */
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#undef CONFIG_HARD_I2C /* I2C with hardware support */
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#define CONFIG_SOFT_I2C 1 /* I2C bit-banged */
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#define CFG_I2C_SPEED 93000 /* 93 kHz is supposed to work */
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#define CFG_I2C_SLAVE 0xFE
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#ifdef CONFIG_SOFT_I2C
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/*
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* Software (bit-bang) I2C driver configuration
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*/
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#define PB_SCL 0x00000020 /* PB 26 */
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#define PB_SDA 0x00000010 /* PB 27 */
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#define I2C_INIT (immr->im_cpm.cp_pbdir |= PB_SCL)
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#define I2C_ACTIVE (immr->im_cpm.cp_pbdir |= PB_SDA)
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#define I2C_TRISTATE (immr->im_cpm.cp_pbdir &= ~PB_SDA)
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#define I2C_READ ((immr->im_cpm.cp_pbdat & PB_SDA) != 0)
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#define I2C_SDA(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SDA; \
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else immr->im_cpm.cp_pbdat &= ~PB_SDA
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#define I2C_SCL(bit) if(bit) immr->im_cpm.cp_pbdat |= PB_SCL; \
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else immr->im_cpm.cp_pbdat &= ~PB_SCL
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#define I2C_DELAY udelay(2) /* 1/4 I2C clock duration */
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#endif /* CONFIG_SOFT_I2C */
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#define CFG_I2C_EEPROM_ADDR 0x50 /* EEPROM AT24C?? */
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#define CFG_I2C_EEPROM_ADDR_LEN 2 /* two byte address */
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#define CFG_EEPROM_PAGE_WRITE_BITS 4
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#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 10 /* and takes up to 10 msec */
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# define CONFIG_RTC_DS1337 1
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# define CFG_I2C_RTC_ADDR 0x68
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/*
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* BOOTP options
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*/
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#define CONFIG_BOOTP_SUBNETMASK
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#define CONFIG_BOOTP_GATEWAY
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#define CONFIG_BOOTP_HOSTNAME
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#define CONFIG_BOOTP_BOOTPATH
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#define CONFIG_BOOTP_BOOTFILESIZE
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#define CONFIG_MAC_PARTITION
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#define CONFIG_DOS_PARTITION
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#undef CONFIG_RTC_MPC8xx /* MPC866 does not support RTC */
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#define CONFIG_TIMESTAMP /* but print image timestmps */
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/*
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* Command line configuration.
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*/
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#include <config_cmd_default.h>
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#define CONFIG_CMD_ASKENV
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#define CONFIG_CMD_DATE
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#define CONFIG_CMD_DHCP
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#define CONFIG_CMD_EEPROM
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#define CONFIG_CMD_I2C
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#define CONFIG_CMD_IDE
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#define CONFIG_CMD_MII
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#define CONFIG_CMD_NFS
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#define CONFIG_CMD_PING
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/*
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* Miscellaneous configurable options
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*/
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#define CFG_LONGHELP /* undef to save memory */
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#define CFG_PROMPT "=> " /* Monitor Command Prompt */
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#define CONFIG_CMDLINE_EDITING 1 /* add command line history */
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#define CFG_HUSH_PARSER 1 /* Use the HUSH parser */
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#ifdef CFG_HUSH_PARSER
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#define CFG_PROMPT_HUSH_PS2 "> "
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#endif
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#if defined(CONFIG_CMD_KGDB)
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#define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
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#else
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#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
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#endif
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#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
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#define CFG_MAXARGS 16 /* max number of command args */
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#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
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#define CFG_MEMTEST_START 0x0100000 /* memtest works on */
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#define CFG_MEMTEST_END 0x0300000 /* 1 ... 3 MB in DRAM */
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#define CFG_ALT_MEMTEST /* alternate, more extensive
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memory test.*/
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#define CFG_LOAD_ADDR 0x100000 /* default load address */
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#define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
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#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
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/*
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* Enable loopw command.
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*/
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#define CONFIG_LOOPW
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/*
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* Low Level Configuration Settings
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* (address mappings, register initial values, etc.)
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* You should know what you are doing if you make changes here.
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*/
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/*-----------------------------------------------------------------------
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* Internal Memory Mapped Register
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*/
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#define CFG_IMMR 0xFFF00000
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/*-----------------------------------------------------------------------
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* Definitions for initial stack pointer and data area (in DPRAM)
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*/
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#define CFG_INIT_RAM_ADDR CFG_IMMR
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#define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */
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#define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
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#define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
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#define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
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/*-----------------------------------------------------------------------
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* Start addresses for the final memory configuration
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* (Set up by the startup code)
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* Please note that CFG_SDRAM_BASE _must_ start at 0
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*/
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#define CFG_SDRAM_BASE 0x00000000
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#define CFG_FLASH_BASE 0x40000000
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#define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
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#define CFG_MONITOR_BASE CFG_FLASH_BASE
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#define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
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/*
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* For booting Linux, the board info and command line data
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* have to be in the first 8 MB of memory, since this is
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* the maximum mapped by the Linux kernel during initialization.
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*/
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#define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
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/*-----------------------------------------------------------------------
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* FLASH organization
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*/
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#define CFG_MAX_FLASH_BANKS 2 /* max number of memory banks */
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#define CFG_MAX_FLASH_SECT 256 /* max number of sectors on one chip */
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#define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
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#define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
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#define CFG_ENV_IS_IN_FLASH 1
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#define CFG_ENV_OFFSET 0x40000 /* Offset of Environment Sector */
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#define CFG_ENV_SIZE 0x08000 /* Total Size of Environment Sector */
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#define CFG_ENV_SECT_SIZE 0x20000 /* Total Size of Environment Sector */
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/* Address and size of Redundant Environment Sector */
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#define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET+CFG_ENV_SECT_SIZE)
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#define CFG_ENV_SIZE_REDUND (CFG_ENV_SIZE)
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/*-----------------------------------------------------------------------
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* Hardware Information Block
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*/
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#define CFG_HWINFO_OFFSET 0x0003FFC0 /* offset of HW Info block */
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#define CFG_HWINFO_SIZE 0x00000040 /* size of HW Info block */
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#define CFG_HWINFO_MAGIC 0x54514D38 /* 'TQM8' */
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/*-----------------------------------------------------------------------
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* Cache Configuration
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*/
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#define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
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#if defined(CONFIG_CMD_KGDB)
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#define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */
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#endif
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/*-----------------------------------------------------------------------
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* SYPCR - System Protection Control 11-9
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* SYPCR can only be written once after reset!
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*-----------------------------------------------------------------------
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* Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
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*/
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#if defined(CONFIG_WATCHDOG)
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#define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
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SYPCR_SWE | SYPCR_SWRI| SYPCR_SWP)
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#else
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#define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
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#endif
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/*-----------------------------------------------------------------------
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* SIUMCR - SIU Module Configuration 11-6
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*-----------------------------------------------------------------------
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* PCMCIA config., multi-function pin tri-state
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*/
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#ifndef CONFIG_CAN_DRIVER
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#define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
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#else /* we must activate GPL5 in the SIUMCR for CAN */
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#define CFG_SIUMCR (SIUMCR_DBGC11 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
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#endif /* CONFIG_CAN_DRIVER */
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/*-----------------------------------------------------------------------
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* TBSCR - Time Base Status and Control 11-26
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*-----------------------------------------------------------------------
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* Clear Reference Interrupt Status, Timebase freezing enabled
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*/
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#define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
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/*-----------------------------------------------------------------------
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* PISCR - Periodic Interrupt Status and Control 11-31
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*-----------------------------------------------------------------------
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* Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
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*/
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#define CFG_PISCR (PISCR_PS | PISCR_PITF)
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/*-----------------------------------------------------------------------
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* SCCR - System Clock and reset Control Register 15-27
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*-----------------------------------------------------------------------
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* Set clock output, timebase and RTC source and divider,
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* power management and some other internal clocks
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*/
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#define SCCR_MASK SCCR_EBDF11
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#define CFG_SCCR (SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
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SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
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SCCR_DFALCD00)
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/*-----------------------------------------------------------------------
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* PCMCIA stuff
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*-----------------------------------------------------------------------
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*
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*/
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#define CFG_PCMCIA_MEM_ADDR (0xE0000000)
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#define CFG_PCMCIA_MEM_SIZE ( 64 << 20 )
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#define CFG_PCMCIA_DMA_ADDR (0xE4000000)
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#define CFG_PCMCIA_DMA_SIZE ( 64 << 20 )
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#define CFG_PCMCIA_ATTRB_ADDR (0xE8000000)
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#define CFG_PCMCIA_ATTRB_SIZE ( 64 << 20 )
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#define CFG_PCMCIA_IO_ADDR (0xEC000000)
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#define CFG_PCMCIA_IO_SIZE ( 64 << 20 )
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/*-----------------------------------------------------------------------
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* IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
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*-----------------------------------------------------------------------
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*/
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#define CONFIG_IDE_8xx_PCCARD 1 /* Use IDE with PC Card Adapter */
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#undef CONFIG_IDE_8xx_DIRECT /* Direct IDE not supported */
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#undef CONFIG_IDE_LED /* LED for ide not supported */
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#undef CONFIG_IDE_RESET /* reset for ide not supported */
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#define CFG_IDE_MAXBUS 1 /* max. 1 IDE bus */
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#define CFG_IDE_MAXDEVICE 1 /* max. 1 drive per IDE bus */
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#define CFG_ATA_IDE0_OFFSET 0x0000
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#define CFG_ATA_BASE_ADDR CFG_PCMCIA_MEM_ADDR
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/* Offset for data I/O */
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#define CFG_ATA_DATA_OFFSET (CFG_PCMCIA_MEM_SIZE + 0x320)
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/* Offset for normal register accesses */
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#define CFG_ATA_REG_OFFSET (2 * CFG_PCMCIA_MEM_SIZE + 0x320)
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/* Offset for alternate registers */
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#define CFG_ATA_ALT_OFFSET 0x0100
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/*-----------------------------------------------------------------------
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*
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*-----------------------------------------------------------------------
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*
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*/
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#define CFG_DER 0
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/*
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* Init Memory Controller:
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*
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* BR0/1 and OR0/1 (FLASH)
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*/
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#define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
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#define FLASH_BASE1_PRELIM 0x60000000 /* FLASH bank #0 */
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/* used to re-map FLASH both when starting from SRAM or FLASH:
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* restrict access enough to keep SRAM working (if any)
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* but not too much to meddle with FLASH accesses
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*/
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#define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */
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#define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
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/*
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* FLASH timing: Default value of OR0 after reset
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*/
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#define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_MSK | OR_BI | \
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OR_SCY_6_CLK | OR_TRLX)
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#define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
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#define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
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#define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V )
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#define CFG_OR1_REMAP CFG_OR0_REMAP
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#define CFG_OR1_PRELIM CFG_OR0_PRELIM
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#define CFG_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_V )
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/*
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* BR2/3 and OR2/3 (SDRAM)
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*
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*/
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#define SDRAM_BASE2_PRELIM 0x00000000 /* SDRAM bank #0 */
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#define SDRAM_BASE3_PRELIM 0x20000000 /* SDRAM bank #1 */
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#define SDRAM_MAX_SIZE (256 << 20) /* max 256 MB per bank */
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/* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
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#define CFG_OR_TIMING_SDRAM 0x00000A00
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#define CFG_OR2_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM )
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#define CFG_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
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#ifndef CONFIG_CAN_DRIVER
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#define CFG_OR3_PRELIM CFG_OR2_PRELIM
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#define CFG_BR3_PRELIM ((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
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#else /* CAN uses CS3#, so we can have only one SDRAM bank anyway */
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#define CFG_CAN_BASE 0xC0000000 /* CAN mapped at 0xC0000000 */
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#define CFG_CAN_OR_AM 0xFFFF8000 /* 32 kB address mask */
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#define CFG_OR3_CAN (CFG_CAN_OR_AM | OR_G5LA | OR_BI)
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#define CFG_BR3_CAN ((CFG_CAN_BASE & BR_BA_MSK) | \
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BR_PS_8 | BR_MS_UPMB | BR_V )
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#endif /* CONFIG_CAN_DRIVER */
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/*
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* 4096 Rows from SDRAM example configuration
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* 1000 factor s -> ms
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* 64 PTP (pre-divider from MPTPR) from SDRAM example configuration
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* 4 Number of refresh cycles per period
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* 64 Refresh cycle in ms per number of rows
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*/
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#define CFG_PTA_PER_CLK ((4096 * 64 * 1000) / (4 * 64))
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/*
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* Periodic timer (MAMR[PTx]) for 4 * 7.8 us refresh (= 31.2 us per quad)
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*
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* CPUclock(MHz) * 31.2
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* CFG_MAMR_PTA = ----------------------------------- with DFBRG = 0
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* 2^(2*SCCR[DFBRG]) * MPTPR_PTP_DIV16
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*
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* CPU clock = 15 MHz: CFG_MAMR_PTA = 29 -> 4 * 7.73 us
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* CPU clock = 50 MHz: CFG_MAMR_PTA = 97 -> 4 * 7.76 us
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* CPU clock = 66 MHz: CFG_MAMR_PTA = 128 -> 4 * 7.75 us
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* CPU clock = 133 MHz: CFG_MAMR_PTA = 255 -> 4 * 7.67 us
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*
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* Value 97 is for 4 * 7.8 us at 50 MHz. So the refresh cycle requirement will
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* be met also in the default configuration, i.e. if environment variable
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* 'cpuclk' is not set.
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*/
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#define CFG_MAMR_PTA 128
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/*
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* Memory Periodic Timer Prescaler Register (MPTPR) values.
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*/
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/* 4 * 7.8 us refresh (= 31.2 us per quad) at 50 MHz and PTA = 97 */
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#define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16
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/* 4 * 3.9 us refresh (= 15.6 us per quad) at 50 MHz and PTA = 97 */
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#define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8
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/*
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* MAMR settings for SDRAM
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*/
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/* 8 column SDRAM */
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#define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
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MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
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MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
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/* 9 column SDRAM */
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#define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
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MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
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MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
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/* 10 column SDRAM */
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#define CFG_MAMR_10COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
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MAMR_AMA_TYPE_2 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A9 | \
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MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
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|
|
|
/*
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|
* Internal Definitions
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|
*
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|
* Boot Flags
|
|
*/
|
|
#define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
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|
#define BOOTFLAG_WARM 0x02 /* Software reboot */
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|
|
|
/*
|
|
* Network configuration
|
|
*/
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|
#define CONFIG_SCC2_ENET /* enable ethernet on SCC2 */
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|
#define CONFIG_FEC_ENET /* enable ethernet on FEC */
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|
#define CONFIG_ETHER_ON_FEC1 /* ... for FEC1 */
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|
#define CONFIG_ETHER_ON_FEC2 /* ... for FEC2 */
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|
|
|
#if defined(CONFIG_CMD_MII)
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|
#define CFG_DISCOVER_PHY
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|
#endif
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|
|
|
#define CONFIG_NET_RETRY_COUNT 1 /* reduce max. timeout before
|
|
switching to another netwok (if the
|
|
tried network is unreachable) */
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|
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|
#define CONFIG_ETHPRIME "SCC ETHERNET"
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|
|
|
#endif /* __CONFIG_H */
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