mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 22:03:15 +00:00
6d0f6bcf33
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
373 lines
14 KiB
C
373 lines
14 KiB
C
/*
|
|
* (C) Copyright 2001
|
|
* Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
|
|
*
|
|
* (C) Copyright 2001
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/*
|
|
* board/config.h - configuration options, board specific
|
|
*/
|
|
|
|
#ifndef __CONFIG_H
|
|
#define __CONFIG_H
|
|
|
|
/*
|
|
* High Level Configuration Options
|
|
* (easy to change)
|
|
*/
|
|
|
|
#define CONFIG_MPC823 1 /* This is a MPC823 CPU */
|
|
#define CONFIG_NX823 1 /* ...on a NEXUS 823 module */
|
|
|
|
/*#define CONFIG_VIDEO 1 */
|
|
|
|
#define CONFIG_8xx_GCLK_FREQ MPC8XX_SPEED
|
|
#define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */
|
|
#undef CONFIG_8xx_CONS_SMC2
|
|
#undef CONFIG_8xx_CONS_NONE
|
|
#define CONFIG_BAUDRATE 57600 /* console baudrate = 115kbps */
|
|
#define CONFIG_BOOTDELAY 2 /* autoboot after 2 seconds */
|
|
#define CONFIG_BOOTARGS "ramdisk_size=8000 "\
|
|
"root=/dev/nfs rw nfsroot=10.77.77.250:/ppcroot "\
|
|
"nfsaddrs=10.77.77.20:10.77.77.250"
|
|
#define CONFIG_BOOTCOMMAND "bootm 400e0000"
|
|
|
|
#define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
|
|
#undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */
|
|
#undef CONFIG_WATCHDOG /* watchdog disabled, for now */
|
|
#define CONFIG_AUTOSCRIPT
|
|
|
|
/*
|
|
* BOOTP options
|
|
*/
|
|
#define CONFIG_BOOTP_SUBNETMASK
|
|
#define CONFIG_BOOTP_GATEWAY
|
|
#define CONFIG_BOOTP_HOSTNAME
|
|
#define CONFIG_BOOTP_BOOTPATH
|
|
#define CONFIG_BOOTP_BOOTFILESIZE
|
|
|
|
|
|
/*
|
|
* Command line configuration.
|
|
*/
|
|
#include <config_cmd_default.h>
|
|
|
|
#define CONFIG_CMD_AUTOSCRIPT
|
|
|
|
|
|
/* call various generic functions */
|
|
#define CONFIG_MISC_INIT_R
|
|
|
|
/*
|
|
* Miscellaneous configurable options
|
|
*/
|
|
#define CONFIG_SYS_LONGHELP /* undef to save memory */
|
|
#define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
|
|
#if defined(CONFIG_CMD_KGDB)
|
|
#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
|
|
#else
|
|
#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
|
|
#endif
|
|
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
|
|
#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
|
|
#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
|
|
|
|
#define CONFIG_SYS_MEMTEST_START 0x0400000 /* memtest works on */
|
|
#define CONFIG_SYS_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
|
|
|
|
#define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */
|
|
|
|
#define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */
|
|
|
|
#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
|
|
|
|
/*
|
|
* Low Level Configuration Settings
|
|
* (address mappings, register initial values, etc.)
|
|
* You should know what you are doing if you make changes here.
|
|
*/
|
|
/*-----------------------------------------------------------------------
|
|
* Internal Memory Mapped Register
|
|
*/
|
|
#define CONFIG_SYS_IMMR 0xFFF00000
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Definitions for initial stack pointer and data area (in DPRAM)
|
|
*/
|
|
#define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR
|
|
#define CONFIG_SYS_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */
|
|
#define CONFIG_SYS_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
|
|
#define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
|
|
#define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Start addresses for the final memory configuration
|
|
* (Set up by the startup code)
|
|
* Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
|
|
*/
|
|
#define CONFIG_SYS_SDRAM_BASE 0x00000000
|
|
#define CONFIG_SYS_FLASH_BASE 0x40000000
|
|
#define CONFIG_SYS_MONITOR_LEN (128 << 10) /* Reserve 128 kB for Monitor */
|
|
#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
|
|
#define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
|
|
|
|
/*
|
|
* For booting Linux, the board info and command line data
|
|
* have to be in the first 8 MB of memory, since this is
|
|
* the maximum mapped by the Linux kernel during initialization.
|
|
*/
|
|
#define CONFIG_SYS_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* FLASH organization
|
|
*/
|
|
#define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
|
|
#define CONFIG_SYS_MAX_FLASH_SECT 128 /* max number of sectors on one chip */
|
|
|
|
#define CONFIG_SYS_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
|
|
#define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
|
|
|
|
#define CONFIG_ENV_IS_IN_FLASH 1
|
|
#define xEMBED
|
|
#ifdef EMBED
|
|
#define CONFIG_ENV_SIZE 0x200 /* FIXME How big when embedded?? */
|
|
#define CONFIG_ENV_ADDR CONFIG_SYS_MONITOR_BASE
|
|
#else
|
|
#define CONFIG_ENV_ADDR 0x40020000 /* absolute address for now */
|
|
#define CONFIG_ENV_SIZE 0x20000 /* 8K ouch, this may later be */
|
|
#endif
|
|
|
|
#define CONFIG_SYS_FLASH_SN_BASE 0x4001fff0 /* programmer automagically puts */
|
|
#define CONFIG_SYS_FLASH_SN_SECTOR 0x40000000 /* a serial number here */
|
|
#define CONFIG_SYS_FLASH_SN_BYTES 8
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Cache Configuration
|
|
*/
|
|
#define CONFIG_SYS_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
|
|
#if defined(CONFIG_CMD_KGDB)
|
|
#define CONFIG_SYS_CACHELINE_SHIFT 4 /* log base 2 of the above value */
|
|
#endif
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* SYPCR - System Protection Control 11-9
|
|
* SYPCR can only be written once after reset!
|
|
*-----------------------------------------------------------------------
|
|
* Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
|
|
*/
|
|
#if defined(CONFIG_WATCHDOG)
|
|
#define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
|
|
SYPCR_SWE | SYPCR_SWP)
|
|
#else
|
|
#define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
|
|
#endif
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* SIUMCR - SIU Module Configuration 12-30
|
|
*-----------------------------------------------------------------------
|
|
* PCMCIA config., multi-function pin tri-state
|
|
*/
|
|
#define CONFIG_SYS_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* TBSCR - Time Base Status and Control 12-16
|
|
*-----------------------------------------------------------------------
|
|
* Clear Reference Interrupt Status, Timebase freezing enabled
|
|
*/
|
|
#define CONFIG_SYS_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* RTCSC - Real-Time Clock Status and Control Register 12-18
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
#define CONFIG_SYS_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* PISCR - Periodic Interrupt Status and Control 12-23
|
|
*-----------------------------------------------------------------------
|
|
* Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
|
|
*/
|
|
#define CONFIG_SYS_PISCR (PISCR_PS | PISCR_PITF)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* PLPRCR - PLL, Low-Power, and Reset Control Register 5-7
|
|
*-----------------------------------------------------------------------
|
|
* Reset PLL lock status sticky bit, timer expired status bit and timer
|
|
* interrupt status bit
|
|
*/
|
|
#define MPC8XX_SPEED 66666666L
|
|
#define MPC8XX_XIN 32768 /* 32.768 kHz crystal */
|
|
#define MPC8XX_FACT (MPC8XX_SPEED/MPC8XX_XIN)
|
|
#define CONFIG_SYS_PLPRCR_MF ((MPC8XX_FACT-1) << PLPRCR_MF_SHIFT)
|
|
#define CONFIG_SYS_PLPRCR (CONFIG_SYS_PLPRCR_MF | PLPRCR_TEXPS | PLPRCR_TMIST)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* SCCR - System Clock and reset Control Register 5-3
|
|
*-----------------------------------------------------------------------
|
|
* Set clock output, timebase and RTC source and divider,
|
|
* power management and some other internal clocks
|
|
*/
|
|
#define SCCR_MASK SCCR_EBDF11
|
|
#define CONFIG_SYS_SCCR (SCCR_TBS | \
|
|
SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
|
|
SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
|
|
SCCR_DFALCD00)
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*
|
|
*/
|
|
#define CONFIG_SYS_DER 0
|
|
|
|
/*
|
|
* Init Memory Controller:
|
|
*
|
|
* BR0 and OR0 (FLASH)
|
|
*/
|
|
|
|
#define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */
|
|
|
|
/* used to re-map FLASH both when starting from SRAM or FLASH:
|
|
* restrict access enough to keep SRAM working (if any)
|
|
* but not too much to meddle with FLASH accesses
|
|
*/
|
|
#define CONFIG_SYS_REMAP_OR_AM 0x80000000 /* OR addr mask */
|
|
#define CONFIG_SYS_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
|
|
|
|
/* FLASH timing: ACS = 00, TRLX = 0, CSNT = 1, SCY = 8, EHTR = 0 */
|
|
#define CONFIG_SYS_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV1 | OR_BI | \
|
|
OR_SCY_8_CLK )
|
|
|
|
#define CONFIG_SYS_OR0_REMAP (CONFIG_SYS_REMAP_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
|
|
#define CONFIG_SYS_OR0_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
|
|
#define CONFIG_SYS_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V )
|
|
|
|
/*
|
|
* BR1/2 and OR1/2 (SDRAM)
|
|
*/
|
|
#define SDRAM_BASE1_PRELIM 0x00000000 /* SDRAM bank #0 */
|
|
#define SDRAM_BASE2_PRELIM 0x20000000 /* SDRAM bank #1 */
|
|
#define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
|
|
|
|
/* SDRAM timing: Multiplexed addresses, drive GPL5 high on first cycle */
|
|
#define CONFIG_SYS_OR_TIMING_SDRAM (OR_G5LS | OR_CSNT_SAM)
|
|
|
|
#define CONFIG_SYS_OR1_PRELIM (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_SDRAM )
|
|
#define CONFIG_SYS_BR1_PRELIM ((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
|
|
#define CONFIG_SYS_OR2_PRELIM CONFIG_SYS_OR1_PRELIM
|
|
#define CONFIG_SYS_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
|
|
|
|
/* IO and memory mapped stuff */
|
|
#define NX823_IO_OR_AM 0xFFFF0000 /* mask for IO addresses */
|
|
#define NX823_IO_BASE 0xFF000000 /* start of IO */
|
|
#define GPOUT_OFFSET (3<<16)
|
|
#define QUART_OFFSET (4<<16)
|
|
#define VIDAC_OFFSET (5<<16)
|
|
#define CPLD_OFFSET (6<<16)
|
|
#define SED1386_OFFSET (7<<16)
|
|
|
|
/*
|
|
* BR3 and OR3 (general purpose output latches)
|
|
*/
|
|
#define GPOUT_BASE (NX823_IO_BASE + GPOUT_OFFSET)
|
|
#define GPOUT_TIMING (OR_CSNT_SAM | OR_TRLX | OR_BI)
|
|
#define CONFIG_SYS_OR3_PRELIM (NX823_IO_OR_AM | GPOUT_TIMING)
|
|
#define CONFIG_SYS_BR3_PRELIM (GPOUT_BASE | BR_V)
|
|
|
|
/*
|
|
* BR4 and OR4 (QUART)
|
|
*/
|
|
#define QUART_BASE (NX823_IO_BASE + QUART_OFFSET)
|
|
#define QUART_TIMING (OR_ACS_DIV4 | OR_SCY_3_CLK | OR_CSNT_SAM | OR_TRLX)
|
|
#define CONFIG_SYS_OR4_PRELIM (NX823_IO_OR_AM | QUART_TIMING | OR_BI)
|
|
#define CONFIG_SYS_BR4_PRELIM (QUART_BASE | BR_PS_8 | BR_V)
|
|
|
|
/*
|
|
* BR5 and OR5 (Video DAC)
|
|
*/
|
|
#define VIDAC_BASE (NX823_IO_BASE + VIDAC_OFFSET)
|
|
#define VIDAC_TIMING (OR_ACS_DIV4 | OR_SCY_3_CLK | OR_CSNT_SAM | OR_EHTR)
|
|
#define CONFIG_SYS_OR5_PRELIM (NX823_IO_OR_AM | VIDAC_TIMING | OR_BI)
|
|
#define CONFIG_SYS_BR5_PRELIM (VIDAC_BASE | BR_PS_8 | BR_V)
|
|
|
|
/*
|
|
* BR6 and OR6 (CPLD)
|
|
* FIXME timing not verified for CPLD
|
|
*/
|
|
#define CPLD_BASE (NX823_IO_BASE + CPLD_OFFSET)
|
|
#define CPLD_TIMING (OR_ACS_DIV4 | OR_SCY_3_CLK | OR_CSNT_SAM | OR_EHTR)
|
|
#define CONFIG_SYS_OR6_PRELIM (NX823_IO_OR_AM | CPLD_TIMING | OR_BI)
|
|
#define CONFIG_SYS_BR6_PRELIM (CPLD_BASE | BR_PS_8 | BR_V )
|
|
|
|
/*
|
|
* BR7 and OR7 (SED1386)
|
|
* FIXME timing not verified for SED controller
|
|
*/
|
|
#define SED1386_BASE 0xF7000000
|
|
#define CONFIG_SYS_OR7_PRELIM (0xFF000000 | OR_BI | OR_SETA)
|
|
#define CONFIG_SYS_BR7_PRELIM (SED1386_BASE | BR_PS_16 | BR_V )
|
|
|
|
/*
|
|
* Memory Periodic Timer Prescaler
|
|
*/
|
|
|
|
/* periodic timer for refresh */
|
|
#define CONFIG_SYS_MAMR_PTA 97 /* start with divider for 100 MHz */
|
|
|
|
/* refresh rate 15.6 us (= 64 ms / 4K = 62.4 / quad bursts) for <= 128 MBit */
|
|
#define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
|
|
#define CONFIG_SYS_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
|
|
|
|
/* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */
|
|
#define CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */
|
|
#define CONFIG_SYS_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */
|
|
|
|
/*
|
|
* MAMR settings for SDRAM
|
|
*/
|
|
|
|
/* 8 column SDRAM */
|
|
#define CONFIG_SYS_MAMR_8COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
|
|
MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \
|
|
MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
|
|
/* 9 column SDRAM */
|
|
#define CONFIG_SYS_MAMR_9COL ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \
|
|
MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
|
|
MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X)
|
|
|
|
|
|
/*
|
|
* Internal Definitions
|
|
*
|
|
* Boot Flags
|
|
*/
|
|
#define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
|
|
#define BOOTFLAG_WARM 0x02 /* Software reboot */
|
|
|
|
#define CONFIG_ENV_OVERWRITE /* allow changes to ethaddr (for now) */
|
|
#define CONFIG_ETHADDR 00:10:20:30:40:50
|
|
#define CONFIG_IPADDR 10.77.77.20
|
|
#define CONFIG_SERVERIP 10.77.77.250
|
|
|
|
#endif /* __CONFIG_H */
|