| /* |
| * (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_SOURCE |
| |
| /* |
| * 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_SOURCE |
| |
| |
| /* 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 */ |
