/* * (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 /* * 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 */