voh405.h

Linux2.4.27在AT91RM9200下的U-BOOT代码。可以在Redhat9等版本下使用。适合ARM学习者使用。

/*
 * (C) Copyright 2001-2003
 * Stefan Roese, esd gmbh germany, [e-mail]
 *
 * 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_405EP		1	/* This is a PPC405 CPU		*/
#define CONFIG_4xx		1	/* ...member of PPC4xx family	*/
#define CONFIG_VOH405		1	/* ...on a VOH405 board		*/

#define CONFIG_BOARD_EARLY_INIT_F 1	/* call board_early_init_f()	*/
#define CONFIG_MISC_INIT_R	1	/* call misc_init_r()		*/

#define CONFIG_SYS_CLK_FREQ	33333334 /* external frequency to pll	*/

#define CONFIG_BAUDRATE		9600
#define CONFIG_BOOTDELAY	3	/* autoboot after 3 seconds	*/

#undef	CONFIG_BOOTARGS
#define CONFIG_RAMBOOTCOMMAND							\
	"setenv bootargs root=/dev/ram rw nfsroot=$(serverip):$(rootpath) "	\
	"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;"	\
	"bootm ffc00000 ffca0000"
#define CONFIG_NFSBOOTCOMMAND							\
	"setenv bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) "	\
	"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;"	\
	"bootm ffc00000"
#define CONFIG_BOOTCOMMAND CONFIG_RAMBOOTCOMMAND

#define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/
#define CFG_LOADS_BAUD_CHANGE	1	/* allow baudrate change	*/

#define CONFIG_MII		1	/* MII PHY management		*/
#define CONFIG_PHY_ADDR		0	/* PHY address			*/

#define CONFIG_COMMANDS	      ( CONFIG_CMD_DFL	| \
				CFG_CMD_DHCP	| \
				CFG_CMD_PCI	| \
				CFG_CMD_IRQ	| \
				CFG_CMD_IDE	| \
				CFG_CMD_ELF	| \
				CFG_CMD_NAND	| \
				CFG_CMD_DATE	| \
				CFG_CMD_I2C	| \
				CFG_CMD_MII	| \
				CFG_CMD_PING	| \
				CFG_CMD_EEPROM	)

#define CONFIG_MAC_PARTITION
#define CONFIG_DOS_PARTITION

/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
#include <cmd_confdefs.h>

#undef	CONFIG_WATCHDOG			/* watchdog disabled		*/

#define CONFIG_RTC_MC146818		/* DS1685 is MC146818 compatible*/
#define CFG_RTC_REG_BASE_ADDR	 0xF0000500 /* RTC Base Address		*/

#define CONFIG_SDRAM_BANK0	1	/* init onboard SDRAM bank 0	*/

/*
 * Miscellaneous configurable options
 */
#define CFG_LONGHELP			/* undef to save memory		*/
#define CFG_PROMPT	"=> "		/* Monitor Command Prompt	*/

#undef	CFG_HUSH_PARSER			/* use "hush" command parser	*/
#ifdef	CFG_HUSH_PARSER
#define CFG_PROMPT_HUSH_PS2	"> "
#endif

#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_DEVICE_NULLDEV	1	/* include nulldev device	*/

#define CFG_CONSOLE_INFO_QUIET	1	/* don't print console @ startup*/

#define CFG_MEMTEST_START	0x0400000	/* memtest works on	*/
#define CFG_MEMTEST_END		0x0C00000	/* 4 ... 12 MB in DRAM	*/

#undef	CFG_EXT_SERIAL_CLOCK	       /* no external serial clock used */
#define CFG_IGNORE_405_UART_ERRATA_59	/* ignore ppc405gp errata #59	*/
#define CFG_BASE_BAUD	    691200
#undef CONFIG_UART1_CONSOLE	       /* define for uart1 as console  */

/* The following table includes the supported baudrates */
#define CFG_BAUDRATE_TABLE	\
	{ 300, 600, 1200, 2400, 4800, 9600, 19200, 38400,     \
	 57600, 115200, 230400, 460800, 921600 }

#define CFG_LOAD_ADDR	0x100000	/* default load address */
#define CFG_EXTBDINFO	1		/* To use extended board_into (bd_t) */

#define CFG_HZ		1000		/* decrementer freq: 1 ms ticks */

#define CONFIG_ZERO_BOOTDELAY_CHECK	/* check for keypress on bootdelay==0 */

#define CONFIG_VERSION_VARIABLE 1	/* include version env variable */

#define CFG_RX_ETH_BUFFER	16	/* use 16 rx buffer on 405 emac */

/*-----------------------------------------------------------------------
 * NAND-FLASH stuff
 *-----------------------------------------------------------------------
 */
#define CFG_MAX_NAND_DEVICE	1	/* Max number of NAND devices		*/
#define SECTORSIZE 512

#define ADDR_COLUMN 1
#define ADDR_PAGE 2
#define ADDR_COLUMN_PAGE 3

#define NAND_ChipID_UNKNOWN	0x00
#define NAND_MAX_FLOORS 1
#define NAND_MAX_CHIPS 1

#define CFG_NAND_CE  (0x80000000 >> 1)	/* our CE is GPIO1 */
#define CFG_NAND_CLE (0x80000000 >> 2)	/* our CLE is GPIO2 */
#define CFG_NAND_ALE (0x80000000 >> 3)	/* our ALE is GPIO3 */
#define CFG_NAND_RDY (0x80000000 >> 4)	/* our RDY is GPIO4 */

#define NAND_DISABLE_CE(nand) do { out32(GPIO0_OR, in32(GPIO0_OR) | CFG_NAND_CE);} while(0)
#define NAND_ENABLE_CE(nand) do { out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_NAND_CE);} while(0)
#define NAND_CTL_CLRALE(nandptr) do { out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_NAND_ALE);} while(0)
#define NAND_CTL_SETALE(nandptr) do { out32(GPIO0_OR, in32(GPIO0_OR) | CFG_NAND_ALE);} while(0)
#define NAND_CTL_CLRCLE(nandptr) do { out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_NAND_CLE);} while(0)
#define NAND_CTL_SETCLE(nandptr) do { out32(GPIO0_OR, in32(GPIO0_OR) | CFG_NAND_CLE);} while(0)
#define NAND_WAIT_READY(nand) while (!(in32(GPIO0_IR) & CFG_NAND_RDY))

#define WRITE_NAND_COMMAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr) = (__u8)(d); } while(0)
#define WRITE_NAND_ADDRESS(d, adr) do{ *(volatile __u8 *)((unsigned long)adr) = (__u8)(d); } while(0)
#define WRITE_NAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr) = (__u8)d; } while(0)
#define READ_NAND(adr) ((volatile unsigned char)(*(volatile __u8 *)(unsigned long)adr))

/*-----------------------------------------------------------------------
 * PCI stuff
 *-----------------------------------------------------------------------
 */
#define PCI_HOST_ADAPTER 0		/* configure as pci adapter	*/
#define PCI_HOST_FORCE	1		/* configure as pci host	*/
#define PCI_HOST_AUTO	2		/* detected via arbiter enable	*/

#define CONFIG_PCI			/* include pci support		*/
#define CONFIG_PCI_HOST PCI_HOST_HOST	/* select pci host function	*/
#define CONFIG_PCI_PNP			/* do pci plug-and-play		*/
					/* resource configuration	*/

#define CONFIG_PCI_SCAN_SHOW		/* print pci devices @ startup	*/

#define CFG_PCI_SUBSYS_VENDORID 0x12FE	/* PCI Vendor ID: esd gmbh	*/
#define CFG_PCI_SUBSYS_DEVICEID 0x0405	/* PCI Device ID: CPCI-405	*/
#define CFG_PCI_CLASSCODE	0x0b20	/* PCI Class Code: Processor/PPC*/
#define CFG_PCI_PTM1LA	0x00000000	/* point to sdram		*/
#define CFG_PCI_PTM1MS	0xfc000001	/* 64MB, enable hard-wired to 1 */
#define CFG_PCI_PTM1PCI 0x00000000	/* Host: use this pci address	*/
#define CFG_PCI_PTM2LA	0xffc00000	/* point to flash		*/
#define CFG_PCI_PTM2MS	0xffc00001	/* 4MB, enable			*/
#define CFG_PCI_PTM2PCI 0x04000000	/* Host: use this pci address	*/

/*-----------------------------------------------------------------------
 * IDE/ATA stuff
 *-----------------------------------------------------------------------
 */
#undef	CONFIG_IDE_8xx_DIRECT		    /* no pcmcia interface required */
#undef	CONFIG_IDE_LED			/* no led for ide supported	*/
#define CONFIG_IDE_RESET	1	/* reset for ide supported	*/

#define CFG_IDE_MAXBUS		2		/* max. 2 IDE busses	*/
#define CFG_IDE_MAXDEVICE	(CFG_IDE_MAXBUS*2) /* max. 2 drives per IDE bus */

#define CONFIG_ATAPI		1	/* ATAPI for Travelstar		*/

#define CFG_ATA_BASE_ADDR	0xF0100000
#define CFG_ATA_IDE0_OFFSET	0x0000
#define CFG_ATA_IDE1_OFFSET	0x0010

#define CFG_ATA_DATA_OFFSET	0x0000	/* Offset for data I/O			*/
#define CFG_ATA_REG_OFFSET	0x0000	/* Offset for normal register accesses	*/
#define CFG_ATA_ALT_OFFSET	0x0000	/* Offset for alternate registers	*/

/*
 * For booting Linux, the board info and command line data
 * have to be in the first 8 MB of memory, since this is