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/*
* (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_FLAGADM 1 /* ...on a FLAGA DM */
#define CONFIG_8xx_GCLK_FREQ 48000000 /*48MHz*/
#undef CONFIG_8xx_CONS_SMC1 /* Console is on SMC1 */
#define CONFIG_8xx_CONS_SMC2 1
#undef CONFIG_8xx_CONS_NONE
#define CONFIG_BAUDRATE 115200 /* console baudrate = 115kbps */
#define CONFIG_BOOTDELAY 3 /* autoboot after 5 seconds */
#undef CONFIG_CLOCKS_IN_MHZ
#if 0
#define CONFIG_BOOTARGS "root=/dev/nfs rw ip=bootp"
#define CONFIG_BOOTCOMMAND \
"setenv bootargs root=/dev/ram ip=off panic=1;" \
"bootm 40040000 400e0000"
#else
#define CONFIG_BOOTARGS "root=/dev/nfs rw ip=bootp panic=1"
#define CONFIG_BOOTCOMMAND "bootp 0x400000; bootm 0x400000"
#endif /* 0|1*/
#define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
#undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */
/*#define CONFIG_WATCHDOG*/ /* watchdog enabled */
#undef CONFIG_WATCHDOG /* watchdog disabled */
#define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE)
#define CONFIG_COMMANDS (CFG_CMD_BDI | CFG_CMD_IMI | CFG_CMD_CACHE | \
CFG_CMD_MEMORY | CFG_CMD_FLASH | CFG_CMD_LOADB | CFG_CMD_LOADS | \
CFG_CMD_ENV | CFG_CMD_REGINFO | CFG_CMD_IMMAP | CFG_CMD_NET)
/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
#include <cmd_confdefs.h>
/*
* Miscellaneous configurable options
*/
#define CFG_LONGHELP /* undef to save memory */
#define CFG_PROMPT "EEG> " /* Monitor Command Prompt */
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
#define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
#else
#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
#endif
#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
#define CFG_MAXARGS 16 /* max number of command args */
#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
#define CFG_MEMTEST_START 0x0100000 /* memtest works on */
#define CFG_MEMTEST_END 0x0f00000 /* 1 ... 15 MB in DRAM */
#define CFG_LOAD_ADDR 0x40040000 /* default load address */
#define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
#define CFG_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 CFG_IMMR 0xFF000000
/*-----------------------------------------------------------------------
* Definitions for initial stack pointer and data area (in DPRAM)
*/
#define CFG_INIT_RAM_ADDR CFG_IMMR
#define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */
#define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
#define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
#define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
/*-----------------------------------------------------------------------
* Start addresses for the final memory configuration
* (Set up by the startup code)
* Please note that CFG_SDRAM_BASE _must_ start at 0
*/
#define CFG_SDRAM_BASE 0x00000000
#define CFG_FLASH_BASE 0x40000000
#define CFG_MONITOR_LEN (128 << 10) /* Reserve 128 kB for Monitor */
#define CFG_MONITOR_BASE CFG_FLASH_BASE
#define CFG_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 CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
/*-----------------------------------------------------------------------
* FLASH organization
*/
#define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
#define CFG_MAX_FLASH_SECT 71 /* max number of sectors on one chip */
#define CFG_FLASH_ERASE_TOUT 8000 /* Timeout for Flash Erase (in ms) */
#define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
#define CFG_ENV_IS_IN_FLASH 1
/* This is a litlebit wasteful, but one sector is 128kb and we have to
* assigne a whole sector for the environment, so that we can safely
* erase and write it without disturbing the boot sector
*/
#define CFG_ENV_OFFSET 0x20000 /* Offset of Environment Sector */
#define CFG_ENV_SIZE 0x20000 /* Total Size of Environment Sector */
/*-----------------------------------------------------------------------
* Cache Configuration
*/
#define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
#define CFG_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
*/
#ifdef CONFIG_WATCHDOG
#define CFG_SYPCR (SYPCR_SWTC | SYPCR_SWF | SYPCR_SWE | SYPCR_SWRI | SYPCR_SWP)
#else
#define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF)
#endif
/*-----------------------------------------------------------------------
* SIUMCR - SIU Module Configuration 11-6
*-----------------------------------------------------------------------
* PCMCIA config., multi-function pin tri-state
*/
#define CFG_PRE_SIUMCR (SIUMCR_DBGC11 | SIUMCR_MPRE | \
SIUMCR_MLRC01 | SIUMCR_GB5E)
#define CFG_SIUMCR (CFG_PRE_SIUMCR | SIUMCR_DLK)
/*-----------------------------------------------------------------------
* TBSCR - Time Base Status and Control 11-26
*-----------------------------------------------------------------------
* Clear Reference Interrupt Status, Timebase freezing enabled
*/
#define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
/*-----------------------------------------------------------------------
* RTCSC - Real-Time Clock Status and Control Register 11-27
*-----------------------------------------------------------------------
*/
#define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
/*-----------------------------------------------------------------------
* PISCR - Periodic Interrupt Status and Control 11-31
*-----------------------------------------------------------------------
* Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
*/
#define CFG_PISCR (PISCR_PS | PISCR_PITF)
/*-----------------------------------------------------------------------
* PLPRCR - PLL, Low-Power, and Reset Control Register 15-30
*-----------------------------------------------------------------------
* Reset PLL lock status sticky bit, timer expired status bit and timer
* interrupt status bit miltiplier of 0x00b i.e. operation clock is
* 4MHz * (0x00b+1) = 4MHz * 12 = 48MHz
*/
#define CFG_PLPRCR (0x00b00000 | PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
/*-----------------------------------------------------------------------
* SCCR - System Clock and reset Control Register 15-27
*-----------------------------------------------------------------------
* Set clock output, timebase and RTC source and divider,
* power management and some other internal clocks
*/
#define SCCR_MASK SCCR_EBDF11
#define CFG_SCCR ( SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \
SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \
SCCR_DFALCD00)
#define CFG_DER 0
/*
* In the Flaga DM we have:
* Flash on BR0/OR0/CS0a at 0x40000000
* Display on BR1/OR1/CS1 at 0x20000000
* SDRAM on BR2/OR2/CS2 at 0x00000000
* Free BR3/OR3/CS3
* DSP1 on BR4/OR4/CS4 at 0x80000000
* DSP2 on BR5/OR5/CS5 at 0xa0000000
*
* For now we just configure the Flash and the SDRAM and leave the others
* untouched.
*/
#define CFG_FLASH_PROTECTION 0
#define FLASH_BASE0 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 CFG_OR_AM 0xff000000 /* OR addr mask */
#define CFG_OR_ATM 0x00006000
/* FLASH timing: ACS = 10, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */
#define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV4 | OR_BI | \
OR_SCY_3_CLK | OR_TRLX | OR_EHTR )
#define CFG_OR0_PRELIM (CFG_OR_AM | CFG_OR_ATM | CFG_OR_TIMING_FLASH)
#define CFG_BR0_PRELIM ((FLASH_BASE0 & BR_BA_MSK) | BR_PS_16 | BR_V )
/*
* BR2 and OR2 (SDRAM)
*
*/
#define SDRAM_BASE2 0x00000000 /* SDRAM bank #0 */
#define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */
/* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */
#define CFG_OR_TIMING_SDRAM ( 0x00000800 )
#define CFG_OR2_PRELIM (CFG_OR_AM | CFG_OR_TIMING_SDRAM)
#define CFG_BR2_PRELIM ((SDRAM_BASE2 & BR_BA_MSK) | BR_MS_UPMA | BR_V )
#define CFG_BR2 CFG_BR2_PRELIM
#define CFG_OR2 CFG_OR2_PRELIM
/*
* MAMR settings for SDRAM
*/
#define CFG_MAMR_48_SDR (CFG_MAMR_PTA | MAMR_WLFA_1X | MAMR_RLFA_1X \
| MAMR_G0CLA_A11)
/*
* Memory Periodic Timer Prescaler
*/
/* periodic timer for refresh */
#define CFG_MAMR_PTA 0x0F000000
/*
* BR4 and OR4 (DSP1)
*
* We do not wan't preliminary setup of the DSP, anyway we need the
* UPMB setup correctly before we can access the DSP.
*
*/
#define DSP_BASE 0x80000000
#define CFG_OR4 ( OR_AM_MSK | OR_CSNT_SAM | OR_BI | OR_G5LS)
#define CFG_BR4 ( (DSP_BASE & BR_BA_MSK) | BR_PS_16 | BR_MS_UPMB | BR_V )
/*
* Internal Definitions
*
* Boot Flags
*/
#define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
#define BOOTFLAG_WARM 0x02 /* Software reboot */
#endif /* __CONFIG_H */
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