/* * (C) Copyright 2000-2004 * 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 */ /* * Dan Malek, Embedded Edge, LLC, dan@embeddededge.com * U-Boot port on STx XTc 8xx board * Mostly copied from Panto's NETTA2 board. */ #ifndef __CONFIG_H #define __CONFIG_H /* * High Level Configuration Options * (easy to change) */ #define CONFIG_MPC875 1 /* This is a MPC875 CPU */ #define CONFIG_STXXTC 1 /* ...on a STx XTc board */ #define CONFIG_SYS_TEXT_BASE 0x40F00000 #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */ #undef CONFIG_8xx_CONS_SMC2 #undef CONFIG_8xx_CONS_NONE #define CONFIG_BAUDRATE 115200 /* console baudrate = 115.2kbps */ #define CONFIG_XIN 10000000 /* 10 MHz input xtal */ /* Select one of few clock rates defined later in this file. */ /* #define MPC8XX_HZ 50000000 */ #define MPC8XX_HZ 66666666 #define CONFIG_8xx_GCLK_FREQ MPC8XX_HZ #if 0 #define CONFIG_BOOTDELAY -1 /* autoboot disabled */ #else #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */ #endif #undef CONFIG_CLOCKS_IN_MHZ /* clocks NOT passsed to Linux in MHz */ #undef CONFIG_BOOTARGS #define CONFIG_BOOTCOMMAND \ "tftpboot; " \ "setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " \ "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; " \ "bootm" #define CONFIG_SOURCE #define CONFIG_LOADS_ECHO 0 /* echo off for serial download */ #undef CONFIG_SYS_LOADS_BAUD_CHANGE /* don't allow baudrate change */ #undef CONFIG_WATCHDOG /* watchdog disabled */ #define CONFIG_STATUS_LED 1 /* Status LED enabled */ #define CONFIG_BOARD_SPECIFIC_LED /* version has board specific leds */ /* * BOOTP options */ #define CONFIG_BOOTP_SUBNETMASK #define CONFIG_BOOTP_GATEWAY #define CONFIG_BOOTP_HOSTNAME #define CONFIG_BOOTP_BOOTPATH #define CONFIG_BOOTP_BOOTFILESIZE #define CONFIG_BOOTP_NISDOMAIN #undef CONFIG_MAC_PARTITION #undef CONFIG_DOS_PARTITION #define CONFIG_RTC_MPC8xx /* use internal RTC of MPC8xx */ #define FEC_ENET 1 /* eth.c needs it that way... */ #undef CONFIG_SYS_DISCOVER_PHY #define CONFIG_MII 1 #define CONFIG_MII_INIT 1 #undef CONFIG_RMII #define CONFIG_ETHER_ON_FEC1 1 #define CONFIG_FEC1_PHY 1 /* phy address of FEC */ #undef CONFIG_FEC1_PHY_NORXERR #define CONFIG_ETHER_ON_FEC2 1 #define CONFIG_FEC2_PHY 3 #undef CONFIG_FEC2_PHY_NORXERR #define CONFIG_ENV_OVERWRITE 1 /* allow modification of vendor params */ /* * Command line configuration. */ #include <config_cmd_default.h> #define CONFIG_CMD_DHCP #define CONFIG_CMD_MII #define CONFIG_CMD_NFS #define CONFIG_CMD_PING #define CONFIG_BOARD_EARLY_INIT_F 1 #define CONFIG_MISC_INIT_R /* * Miscellaneous configurable options */ #define CONFIG_SYS_LONGHELP /* undef to save memory */ #define CONFIG_SYS_PROMPT "xtc> " /* Monitor Command Prompt */ #define CONFIG_SYS_HUSH_PARSER 1 #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 0x0300000 /* memtest works on */ #define CONFIG_SYS_MEMTEST_END 0x0700000 /* 3 ... 7 MB in DRAM */ #define CONFIG_SYS_LOAD_ADDR 0x100000 /* default load address */ #define CONFIG_SYS_HZ 1000 /* decrementer freq: 1 ms ticks */ /* * 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 0xFF000000 /*----------------------------------------------------------------------- * Definitions for initial stack pointer and data area (in DPRAM) */ #define CONFIG_SYS_INIT_RAM_ADDR CONFIG_SYS_IMMR #define CONFIG_SYS_INIT_RAM_SIZE 0x3000 /* Size of used area in DPRAM */ #define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_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 #if defined(DEBUG) #define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */ #else #define CONFIG_SYS_MONITOR_LEN (192 << 10) /* Reserve 192 kB for Monitor */ #endif /* yes this is weird, I know :) */ #define CONFIG_SYS_MONITOR_BASE (CONFIG_SYS_FLASH_BASE | 0x00F00000) #define CONFIG_SYS_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */ #define CONFIG_SYS_RESET_ADDRESS 0x80000000 /* * 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_ENV_IS_IN_FLASH 1 #define CONFIG_ENV_SECT_SIZE 0x10000 #define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + 0x00000000) #define CONFIG_ENV_OFFSET 0 #define CONFIG_ENV_SIZE 0x4000 #define CONFIG_ENV_ADDR_REDUND (CONFIG_SYS_FLASH_BASE + 0x00010000) #define CONFIG_ENV_OFFSET_REDUND 0 #define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE #define CONFIG_SYS_FLASH_CFI 1 #define CONFIG_FLASH_CFI_DRIVER 1 #undef CONFIG_SYS_FLASH_USE_BUFFER_WRITE /* use buffered writes (20x faster) */ #define CONFIG_SYS_MAX_FLASH_SECT 128 /* max number of sectors on one chip */ #define CONFIG_SYS_MAX_FLASH_BANKS 2 /* max number of memory banks */ #define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE + 0x2000000 } #define CONFIG_SYS_FLASH_PROTECTION /*----------------------------------------------------------------------- * 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_SWRI| SYPCR_SWP) #else #define CONFIG_SYS_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP) #endif /*----------------------------------------------------------------------- * SIUMCR - SIU Module Configuration 11-6 *----------------------------------------------------------------------- * PCMCIA config., multi-function pin tri-state */ #define CONFIG_SYS_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01 | SIUMCR_FRC | SIUMCR_GB5E) /*----------------------------------------------------------------------- * TBSCR - Time Base Status and Control 11-26 *----------------------------------------------------------------------- * 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 11-27 *----------------------------------------------------------------------- */ #define CONFIG_SYS_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 CONFIG_SYS_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 * */ #if CONFIG_XIN == 10000000 #if MPC8XX_HZ == 50000000 #define CONFIG_SYS_PLPRCR ((0 << PLPRCR_MFN_SHIFT) | (0 << PLPRCR_MFD_SHIFT) | \ (1 << PLPRCR_S_SHIFT) | (10 << PLPRCR_MFI_SHIFT) | (0 << PLPRCR_PDF_SHIFT) | \ PLPRCR_TEXPS) #elif MPC8XX_HZ == 66666666 #define CONFIG_SYS_PLPRCR ((1 << PLPRCR_MFN_SHIFT) | (2 << PLPRCR_MFD_SHIFT) | \ (1 << PLPRCR_S_SHIFT) | (13 << PLPRCR_MFI_SHIFT) | (0 << PLPRCR_PDF_SHIFT) | \ PLPRCR_TEXPS) #else #error unsupported CPU freq for XIN = 10MHz #endif #else #error unsupported freq for XIN (must be 10MHz) #endif /* *----------------------------------------------------------------------- * 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 * * Note: When TBS == 0 the timebase is independent of current cpu clock. */ #define SCCR_MASK SCCR_EBDF11 #if MPC8XX_HZ > 66666666 #define CONFIG_SYS_SCCR (/* SCCR_TBS | */ SCCR_CRQEN | \ SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \ SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \ SCCR_DFALCD00 | SCCR_EBDF01) #else #define CONFIG_SYS_SCCR (/* SCCR_TBS | */ SCCR_CRQEN | \ SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \ SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \ SCCR_DFALCD00) #endif /*----------------------------------------------------------------------- * *----------------------------------------------------------------------- * */ /*#define CONFIG_SYS_DER 0x2002000F*/ #define CONFIG_SYS_DER 0 /* * Init Memory Controller: * * BR0/1 and OR0/1 (FLASH) */ #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */ #define FLASH_BASE1_PRELIM 0x42000000 /* FLASH bank #1 */ /* 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 FLASH_BANK_MAX_SIZE 0x01000000 /* max size per chip */ #define CONFIG_SYS_REMAP_OR_AM 0x80000000 #define CONFIG_SYS_PRELIM_OR_AM (0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1)) /* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1 */ #define CONFIG_SYS_OR_TIMING_FLASH (OR_CSNT_SAM | OR_BI | OR_SCY_5_CLK | OR_TRLX) #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 ) #define CONFIG_SYS_OR1_PRELIM ((0xFFFFFFFFLU & ~(FLASH_BANK_MAX_SIZE - 1)) | CONFIG_SYS_OR_TIMING_FLASH) #define CONFIG_SYS_BR1_PRELIM ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V ) /* * BR4 and OR4 (SDRAM) * */ #define SDRAM_BASE1_PRELIM 0x00000000 /* SDRAM bank #0 */ #define SDRAM_MAX_SIZE (256 << 20) /* max 256MB per bank */ /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care) */ #define CONFIG_SYS_OR_TIMING_SDRAM (OR_CSNT_SAM | OR_G5LS) #define CONFIG_SYS_OR4_PRELIM ((0xFFFFFFFFLU & ~(SDRAM_MAX_SIZE - 1)) | CONFIG_SYS_OR_TIMING_SDRAM) #define CONFIG_SYS_BR4_PRELIM ((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_PS_32 | BR_V) /* * Memory Periodic Timer Prescaler */ /* * Memory Periodic Timer Prescaler * * The Divider for PTA (refresh timer) configuration is based on an * example SDRAM configuration (64 MBit, one bank). The adjustment to * the number of chip selects (NCS) and the actually needed refresh * rate is done by setting MPTPR. * * PTA is calculated from * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS) * * gclk CPU clock (not bus clock!) * Trefresh Refresh cycle * 4 (four word bursts used) * * 4096 Rows from SDRAM example configuration * 1000 factor s -> ms * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration * 4 Number of refresh cycles per period * 64 Refresh cycle in ms per number of rows * -------------------------------------------- * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000 * * 50 MHz => 50.000.000 / Divider = 98 * 66 Mhz => 66.000.000 / Divider = 129 * 80 Mhz => 80.000.000 / Divider = 156 */ #define CONFIG_SYS_MAMR_PTA 234 /* * For 16 MBit, refresh rates could be 31.3 us * (= 64 ms / 2K = 125 / quad bursts). * For a simpler initialization, 15.6 us is used instead. * * #define CONFIG_SYS_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks * #define CONFIG_SYS_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank */ #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) #define CONFIG_LAST_STAGE_INIT /* needed to reset the damn phys */ /****************************************************************/ #define NAND_SIZE 0x00010000 /* 64K */ #define NAND_BASE 0xF1000000 /*****************************************************************************/ #define CONFIG_SYS_DIRECT_FLASH_TFTP /*****************************************************************************/ /* Status Leds are on the MODCK pins, which become the PCMCIA PGCRB, * CxOE and CxRESET. We use the CxOE. */ #define STATUS_LED_BIT 0x00000080 /* bit 24 */ #define STATUS_LED_PERIOD (CONFIG_SYS_HZ / 2) #define STATUS_LED_STATE STATUS_LED_BLINKING #define STATUS_LED_ACTIVE 0 /* LED on for bit == 0 */ #define STATUS_LED_BOOT 0 /* LED 0 used for boot status */ #ifndef __ASSEMBLY__ /* LEDs */ /* led_id_t is unsigned int mask */ typedef unsigned int led_id_t; #define __led_toggle(_msk) \ do { \ ((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb ^= (_msk); \ } while(0) #define __led_set(_msk, _st) \ do { \ if ((_st)) \ ((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb |= (_msk); \ else \ ((volatile immap_t *)CONFIG_SYS_IMMR)->im_pcmcia.pcmc_pgcrb &= ~(_msk); \ } while(0) #define __led_init(msk, st) __led_set(msk, st) #endif /******************************************************************************/ #define CONFIG_SYS_CONSOLE_IS_IN_ENV 1 #define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE 1 #define CONFIG_SYS_CONSOLE_ENV_OVERWRITE 1 /******************************************************************************/ /* use board specific hardware */ #undef CONFIG_WATCHDOG /* watchdog disabled */ #define CONFIG_HW_WATCHDOG /*****************************************************************************/ #define CONFIG_AUTO_COMPLETE 1 #define CONFIG_CRC32_VERIFY 1 #define CONFIG_HUSH_OLD_PARSER_COMPATIBLE 1 /*****************************************************************************/ /* pass open firmware flattened device tree */ #define CONFIG_OF_LIBFDT 1 #define OF_TBCLK (MPC8XX_HZ / 16) #endif /* __CONFIG_H */