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authorwdenk <wdenk>2002-11-03 00:24:07 +0000
committerwdenk <wdenk>2002-11-03 00:24:07 +0000
commitc609719b8d1b2dca590e0ed499016d041203e403 (patch)
tree7ea1755d80903ff972f312a249eb856061d40e15 /include/configs/CRAYL1.h
parent5b1d713721c3ea02549940133f09236783dda1f9 (diff)
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+/*
+ * (C) Copyright 2000, 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * David Updegraff, Cray, Inc. dave@cray.com: our 405 is walnut-lite..
+ *
+ * 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
+
+#define CONFIG_CRAYL1
+/*
+ * High Level Configuration Options
+ * (easy to change)
+ */
+
+#define CONFIG_405GP 1 /* This is a PPC405 CPU */
+#define CONFIG_4xx 1 /* ...member of PPC405 family */
+#define CONFIG_SYS_CLK_FREQ 25000000
+#define CONFIG_BAUDRATE 9600
+#define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
+#define CONFIG_MII 1 /* MII PHY management */
+#define CONFIG_PHY_ADDR 1 /* PHY address; handling of ENET */
+#define CONFIG_BOARD_PRE_INIT 1 /* setup for 405gp */
+#define CONFIG_MISC_INIT_R 1 /* so that a misc_init_r() is called */
+
+/* set PRAM to keep U-Boot out, mem= to keep linux out, and initrd_hi to
+ * keep possible initrd ramdisk decompression out. This is in k (1024 bytes)
+ #define CONFIG_PRAM 16
+ */
+#define CONFIG_LOADADDR 0x100000
+#undef CONFIG_BOOTARGS
+
+/* the logic is that booting is driven by what env vars get set from DHCP.
+ * Normal DHCP sets things like serverip, rootpath, etc.
+ * if printenv
+ */
+#define CFG_AUTOLOAD "yes"
+#define CONFIG_BOOTCOMMAND "dhcp;"\
+ "setenv bootargs devfs=mount;"\
+ "setenv bootargs ip=$ipaddr:$serverip:$gatewayip:$netmask:::off $bootargs;"\
+ "if printenv initrd;"\
+ "then;" \
+ "setenv initrd_hi $mem;"\
+ "tftp 1000000 $initrd;"\
+ "setenv bootargs root=/dev/ram0 rw cwsroot=$serverip:$rootpath $bootargs;"\
+ "bootm 100000 1000000;"\
+ "else;"\
+ "setenv bootargs root=/dev/nfs ro nfsroot=$serverip:$rootpath $bootargs;"\
+ "bootm 100000;"\
+ "fi;"
+
+#define CONFIG_EXTRA_ENV_SETTINGS ""
+
+/*
+ * ..during experiments..
+ #define CONFIG_SERVERIP 10.0.0.1
+ #define CONFIG_ETHADDR 00:40:a6:80:14:5
+ */
+#define CONFIG_HARD_I2C 1 /* hardware support for i2c */
+#define CFG_I2C_SPEED 400000 /* I2C speed and slave address */
+#define CFG_I2C_SLAVE 0x7F
+#define CFG_I2C_EEPROM_ADDR 0x57
+#define CFG_I2C_EEPROM_ADDR_LEN 1
+#define CONFIG_IDENT_STRING "Cray L1"
+#define CONFIG_ENV_OVERWRITE 1
+#define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
+#define CFG_HUSH_PARSER 1
+#define CFG_PROMPT_HUSH_PS2 "> "
+
+
+#define CONFIG_COMMANDS (\
+ CFG_CMD_BDI|\
+ CFG_CMD_IMI|\
+ CFG_CMD_FLASH|\
+ CFG_CMD_MEMORY|\
+ CFG_CMD_NET|\
+ CFG_CMD_ENV|\
+ CFG_CMD_CONSOLE|\
+ CFG_CMD_ASKENV|\
+ CFG_CMD_ECHO|\
+ CFG_CMD_IMMAP|\
+ CFG_CMD_REGINFO|\
+ CFG_CMD_DHCP|\
+ CFG_CMD_DATE|\
+ CFG_CMD_RUN|\
+ CFG_CMD_I2C|\
+ CFG_CMD_EEPROM|\
+ CFG_CMD_SETGETDCR)
+
+/*
+ * optional BOOTP / DHCP fields
+ */
+#define CONFIG_BOOTP_MASK (\
+ CONFIG_BOOTP_VENDOREX|\
+ CONFIG_BOOTP_SUBNETMASK|\
+ CONFIG_BOOTP_GATEWAY|\
+ CONFIG_BOOTP_DNS|\
+ CONFIG_BOOTP_HOSTNAME|\
+ CONFIG_BOOTP_BOOTFILESIZE|\
+ CONFIG_BOOTP_BOOTPATH)
+
+/*
+ * bauds. Just to make it compile; in our case, I read the base_baud
+ * from the DCR anyway, so its kinda-tied to the above ref. clock which in turn
+ * drives the system clock.
+ */
+#define CFG_BASE_BAUD 403225
+#define CFG_BAUDRATE_TABLE \
+ {300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400}
+
+/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
+#include <cmd_confdefs.h>
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CFG_PROMPT "=> " /* Monitor Command Prompt */
+#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
+#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
+#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
+#define CFG_MAXARGS 16 /* max number of command args */
+
+
+#define CFG_LOAD_ADDR 0x100000/* where to load what we get from TFTP */
+#define CFG_TFTP_LOADADDR CFG_LOAD_ADDR
+#define CFG_EXTBDINFO 1 /* To use extended board_into (bd_t) */
+
+/*-----------------------------------------------------------------------
+ * 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 0xFFC00000
+#define CFG_MONITOR_BASE TEXT_BASE
+
+#ifndef CFG_HUSH_PARSER
+#define CFG_MONITOR_LEN (128 * 1024) /* Reserve 128 kB for Monitor */
+#define CFG_ENV_OFFSET 0x3D0000
+#else
+#define CFG_MONITOR_LEN (192 * 1024) /* Reserve 192 kB for Monitor */
+#define CFG_ENV_OFFSET 0x3FE000
+#endif
+
+#define CFG_MALLOC_LEN (128 * 1024) /* 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 64 /* max number of sectors on one chip */
+#define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
+#define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
+
+/* BEG ENVIRONNEMENT FLASH: needs to be a whole FlashSector */
+#define CFG_ENV_IS_IN_FLASH 1 /* use FLASH for environment vars */
+#define CFG_ENV_SIZE 0x1000 /* Total Size of Environment Sector */
+#define CFG_ENV_SECT_SIZE 0x10000 /* see README - env sector total size */
+
+/* Memory tests: U-Boot relocates itself to the top of Ram, so its at
+ * 32meg-(128k+some_malloc_space+copy-of-ENV sector)..
+ */
+#define CFG_SDRAM_SIZE 32 /* megs of ram */
+#define CFG_MEMTEST_START 0x2000 /* memtest works from the end of */
+ /* the exception vector table */
+ /* to the end of the DRAM */
+ /* less monitor and malloc area */
+#define CFG_STACK_USAGE 0x10000 /* Reserve 64k for the stack usage */
+#define CFG_MEM_END_USAGE ( CFG_MONITOR_LEN \
+ + CFG_MALLOC_LEN \
+ + CFG_ENV_SECT_SIZE \
+ + CFG_STACK_USAGE )
+
+#define CFG_MEMTEST_END (CFG_SDRAM_SIZE * 1024 * 1024 - CFG_MEM_END_USAGE)
+/* END ENVIRONNEMENT FLASH */
+
+/*-----------------------------------------------------------------------
+ * Cache Configuration. Only used to ..?? clear it, I guess..
+ */
+#define CFG_DCACHE_SIZE 16384
+#define CFG_CACHELINE_SIZE 32
+
+/*
+ * Init Memory Controller:
+ *
+ * BR0/1 and OR0/1 (FLASH)
+ */
+
+#define FLASH_BASE0_PRELIM CFG_FLASH_BASE /* FLASH bank #0 */
+
+
+/*-----------------------------------------------------------------------
+ * Definitions for initial stack pointer and data area (in OnChipMem )
+ */
+#if 0
+#define CFG_INIT_RAM_ADDR 0x40000000 /* use data cache */
+#define CFG_INIT_RAM_END 0x2000 /* End of used area in RAM */
+#else
+#define CFG_TEMP_STACK_OCM 1
+#define CFG_OCM_DATA_ADDR 0xF0000000
+#define CFG_OCM_DATA_SIZE 0x1000
+#define CFG_INIT_RAM_ADDR CFG_OCM_DATA_ADDR /* inside of On Chip SRAM */
+#define CFG_INIT_RAM_END CFG_OCM_DATA_SIZE /* End of On Chip SRAM */
+#endif
+
+#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
+
+/*-----------------------------------------------------------------------
+ * Definitions for Serial Presence Detect EEPROM address
+ */
+#define EEPROM_WRITE_ADDRESS 0xA0
+#define EEPROM_READ_ADDRESS 0xA1
+
+/*
+ * Internal Definitions
+ *
+ * Boot Flags
+ */
+#define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
+#define BOOTFLAG_WARM 0x02 /* Software reboot */
+
+#endif /* __CONFIG_H */