sbc8349.h

u-boot1.3德国DENX小组开发的用于多种嵌入式CPU的bootloader

/*
 * WindRiver SBC8349 U-Boot configuration file.
 * Copyright (c) 2006, 2007 Wind River Systems, Inc.
 *
 * Paul Gortmaker <[e-mail]>
 * Based on the MPC8349EMDS config.
 *
 * 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
 */

/*
 * sbc8349 board configuration file.
 */

#ifndef __CONFIG_H
#define __CONFIG_H

#undef DEBUG

/*
 * High Level Configuration Options
 */
#define CONFIG_E300		1	/* E300 Family */
#define CONFIG_MPC83XX		1	/* MPC83XX family */
#define CONFIG_MPC834X		1	/* MPC834X family */
#define CONFIG_MPC8349		1	/* MPC8349 specific */
#define CONFIG_SBC8349		1	/* WRS SBC8349 board specific */

#undef CONFIG_PCI
/* Don't enable PCI2 on sbc834x - it doesn't exist physically. */
#undef CONFIG_MPC83XX_PCI2		/* support for 2nd PCI controller */

#define PCI_66M
#ifdef PCI_66M
#define CONFIG_83XX_CLKIN	66000000	/* in Hz */
#else
#define CONFIG_83XX_CLKIN	33000000	/* in Hz */
#endif

#ifndef CONFIG_SYS_CLK_FREQ
#ifdef PCI_66M
#define CONFIG_SYS_CLK_FREQ	66000000
#define HRCWL_CSB_TO_CLKIN	HRCWL_CSB_TO_CLKIN_4X1
#else
#define CONFIG_SYS_CLK_FREQ	33000000
#define HRCWL_CSB_TO_CLKIN	HRCWL_CSB_TO_CLKIN_8X1
#endif
#endif

#undef CONFIG_BOARD_EARLY_INIT_F		/* call board_pre_init */

#define CFG_IMMR		0xE0000000

#undef CFG_DRAM_TEST				/* memory test, takes time */
#define CFG_MEMTEST_START	0x00000000	/* memtest region */
#define CFG_MEMTEST_END		0x00100000

/*
 * DDR Setup
 */
#undef CONFIG_DDR_ECC			/* only for ECC DDR module */
#undef CONFIG_DDR_ECC_CMD		/* use DDR ECC user commands */
#define CONFIG_SPD_EEPROM		/* use SPD EEPROM for DDR setup*/
#define CFG_83XX_DDR_USES_CS0		/* WRS; Fsl board uses CS2/CS3 */

/*
 * 32-bit data path mode.
 *
 * Please note that using this mode for devices with the real density of 64-bit
 * effectively reduces the amount of available memory due to the effect of
 * wrapping around while translating address to row/columns, for example in the
 * 256MB module the upper 128MB get aliased with contents of the lower
 * 128MB); normally this define should be used for devices with real 32-bit
 * data path.
 */
#undef CONFIG_DDR_32BIT

#define CFG_DDR_BASE		0x00000000	/* DDR is system memory*/
#define CFG_SDRAM_BASE		CFG_DDR_BASE
#define CFG_DDR_SDRAM_BASE	CFG_DDR_BASE
#define CFG_DDR_SDRAM_CLK_CNTL	(DDR_SDRAM_CLK_CNTL_SS_EN | \
				DDR_SDRAM_CLK_CNTL_CLK_ADJUST_075)
#define CONFIG_DDR_2T_TIMING

#if defined(CONFIG_SPD_EEPROM)
/*
 * Determine DDR configuration from I2C interface.
 */
#define SPD_EEPROM_ADDRESS	0x52		/* DDR DIMM */

#else
/*
 * Manually set up DDR parameters
 * NB: manual DDR setup untested on sbc834x
 */
#define CFG_DDR_SIZE		256		/* MB */
#define CFG_DDR_CONFIG		(CSCONFIG_EN | CSCONFIG_ROW_BIT_13 | CSCONFIG_COL_BIT_10)
#define CFG_DDR_TIMING_1	0x36332321
#define CFG_DDR_TIMING_2	0x00000800	/* P9-45,may need tuning */
#define CFG_DDR_CONTROL		0xc2000000	/* unbuffered,no DYN_PWR */
#define CFG_DDR_INTERVAL	0x04060100	/* autocharge,no open page */

#if defined(CONFIG_DDR_32BIT)
/* set burst length to 8 for 32-bit data path */
#define CFG_DDR_MODE		0x00000023	/* DLL,normal,seq,4/2.5, 8 burst len */
#else
/* the default burst length is 4 - for 64-bit data path */
#define CFG_DDR_MODE		0x00000022	/* DLL,normal,seq,4/2.5, 4 burst len */
#endif
#endif

/*
 * SDRAM on the Local Bus
 */
#define CFG_LBC_SDRAM_BASE	0x10000000	/* Localbus SDRAM */
#define CFG_LBC_SDRAM_SIZE	128		/* LBC SDRAM is 128MB */

/*
 * FLASH on the Local Bus
 */
#define CFG_FLASH_CFI				/* use the Common Flash Interface */
#define CFG_FLASH_CFI_DRIVER			/* use the CFI driver */
#define CFG_FLASH_BASE		0xFF800000	/* start of FLASH   */
#define CFG_FLASH_SIZE		8		/* flash size in MB */
/* #define CFG_FLASH_USE_BUFFER_WRITE */

#define CFG_BR0_PRELIM		(CFG_FLASH_BASE |	/* flash Base address */ \
				(2 << BR_PS_SHIFT) |	/* 32 bit port size */	 \
				BR_V)			/* valid */

#define CFG_OR0_PRELIM		0xFF806FF7	/* 8 MB flash size */
#define CFG_LBLAWBAR0_PRELIM	CFG_FLASH_BASE	/* window base at flash base */
#define CFG_LBLAWAR0_PRELIM	0x80000016	/* 8 MB window size */

#define CFG_MAX_FLASH_BANKS	1		/* number of banks */
#define CFG_MAX_FLASH_SECT	64		/* sectors per device */

#undef CFG_FLASH_CHECKSUM
#define CFG_FLASH_ERASE_TOUT	60000	/* Flash Erase Timeout (ms) */
#define CFG_FLASH_WRITE_TOUT	500	/* Flash Write Timeout (ms) */

#define CFG_MID_FLASH_JUMP	0x7F000000
#define CFG_MONITOR_BASE	TEXT_BASE	/* start of monitor */

#if (CFG_MONITOR_BASE < CFG_FLASH_BASE)
#define CFG_RAMBOOT
#else
#undef  CFG_RAMBOOT
#endif

#define CONFIG_L1_INIT_RAM
#define CFG_INIT_RAM_LOCK	1
#define CFG_INIT_RAM_ADDR	0xFD000000		/* Initial RAM address */
#define CFG_INIT_RAM_END	0x1000			/* End of used area in RAM*/

#define CFG_GBL_DATA_SIZE	0x100			/* num bytes initial data */
#define CFG_GBL_DATA_OFFSET	(CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
#define CFG_INIT_SP_OFFSET	CFG_GBL_DATA_OFFSET

#define CFG_MONITOR_LEN		(256 * 1024)		/* Reserve 256 kB for Mon */
#define CFG_MALLOC_LEN		(128 * 1024)		/* Reserved for malloc */

/*
 * Local Bus LCRR and LBCR regs
 *    LCRR:  DLL bypass, Clock divider is 4
 * External Local Bus rate is
 *    CLKIN * HRCWL_CSB_TO_CLKIN / HRCWL_LCL_BUS_TO_SCB_CLK / LCRR_CLKDIV
 */
#define CFG_LCRR	(LCRR_DBYP | LCRR_CLKDIV_4)
#define CFG_LBC_LBCR	0x00000000

#undef CFG_LB_SDRAM	/* if board has SDRAM on local bus */

#ifdef CFG_LB_SDRAM
/* Local bus BR2, OR2 definition for SDRAM if soldered on the board*/
/*
 * Base Register 2 and Option Register 2 configure SDRAM.
 * The SDRAM base address, CFG_LBC_SDRAM_BASE, is 0xf0000000.
 *
 * For BR2, need:
 *    Base address of 0xf0000000 = BR[0:16] = 1111 0000 0000 0000 0
 *    port-size = 32-bits = BR2[19:20] = 11
 *    no parity checking = BR2[21:22] = 00
 *    SDRAM for MSEL = BR2[24:26] = 011
 *    Valid = BR[31] = 1
 *
 * 0    4    8    12   16   20   24   28
 * 1111 0000 0000 0000 0001 1000 0110 0001 = F0001861
 *
 * FIXME: CFG_LBC_SDRAM_BASE should be masked and OR'ed into
 * FIXME: the top 17 bits of BR2.
 */

#define CFG_BR2_PRELIM		0xF0001861 /* Port-size=32bit, MSEL=SDRAM */
#define CFG_LBLAWBAR2_PRELIM	0xF0000000
#define CFG_LBLAWAR2_PRELIM	0x80000019 /* 64M */

/*
 * The SDRAM size in MB, CFG_LBC_SDRAM_SIZE, is 64.
 *
 * For OR2, need:
 *    64MB mask for AM, OR2[0:7] = 1111 1100
 *                 XAM, OR2[17:18] = 11
 *    9 columns OR2[19-21] = 010
 *    13 rows   OR2[23-25] = 100
 *    EAD set for extra time OR[31] = 1
 *
 * 0    4    8    12   16   20   24   28
 * 1111 1100 0000 0000 0110 1001 0000 0001 = FC006901
 */

#define CFG_OR2_PRELIM	0xFC006901

#define CFG_LBC_LSRT	0x32000000    /* LB sdram refresh timer, about 6us */
#define CFG_LBC_MRTPR	0x20000000    /* LB refresh timer prescal, 266MHz/32 */

/*
 * LSDMR masks
 */
#define CFG_LBC_LSDMR_RFEN	(1 << (31 -  1))
#define CFG_LBC_LSDMR_BSMA1516	(3 << (31 - 10))
#define CFG_LBC_LSDMR_BSMA1617	(4 << (31 - 10))
#define CFG_LBC_LSDMR_RFCR5	(3 << (31 - 16))
#define CFG_LBC_LSDMR_RFCR8	(5 << (31 - 16))
#define CFG_LBC_LSDMR_RFCR16	(7 << (31 - 16))
#define CFG_LBC_LSDMR_PRETOACT3	(3 << (31 - 19))
#define CFG_LBC_LSDMR_PRETOACT6	(5 << (31 - 19))
#define CFG_LBC_LSDMR_PRETOACT7	(7 << (31 - 19))
#define CFG_LBC_LSDMR_ACTTORW3	(3 << (31 - 22))
#define CFG_LBC_LSDMR_ACTTORW7	(7 << (31 - 22))
#define CFG_LBC_LSDMR_ACTTORW6	(6 << (31 - 22))
#define CFG_LBC_LSDMR_BL8	(1 << (31 - 23))
#define CFG_LBC_LSDMR_WRC2	(2 << (31 - 27))
#define CFG_LBC_LSDMR_WRC3	(3 << (31 - 27))
#define CFG_LBC_LSDMR_WRC4	(0 << (31 - 27))
#define CFG_LBC_LSDMR_BUFCMD	(1 << (31 - 29))
#define CFG_LBC_LSDMR_CL3	(3 << (31 - 31))

#define CFG_LBC_LSDMR_OP_NORMAL	(0 << (31 - 4))
#define CFG_LBC_LSDMR_OP_ARFRSH	(1 << (31 - 4))
#define CFG_LBC_LSDMR_OP_SRFRSH	(2 << (31 - 4))
#define CFG_LBC_LSDMR_OP_MRW	(3 << (31 - 4))
#define CFG_LBC_LSDMR_OP_PRECH	(4 << (31 - 4))
#define CFG_LBC_LSDMR_OP_PCHALL	(5 << (31 - 4))
#define CFG_LBC_LSDMR_OP_ACTBNK	(6 << (31 - 4))
#define CFG_LBC_LSDMR_OP_RWINV	(7 << (31 - 4))

#define CFG_LBC_LSDMR_COMMON    ( CFG_LBC_LSDMR_RFEN            \
				| CFG_LBC_LSDMR_BSMA1516	\
				| CFG_LBC_LSDMR_RFCR8		\
				| CFG_LBC_LSDMR_PRETOACT6	\
				| CFG_LBC_LSDMR_ACTTORW3	\
				| CFG_LBC_LSDMR_BL8		\
				| CFG_LBC_LSDMR_WRC3		\
				| CFG_LBC_LSDMR_CL3		\
				)

/*
 * SDRAM Controller configuration sequence.
 */
#define CFG_LBC_LSDMR_1		( CFG_LBC_LSDMR_COMMON \
				| CFG_LBC_LSDMR_OP_PCHALL)
#define CFG_LBC_LSDMR_2		( CFG_LBC_LSDMR_COMMON \
				| CFG_LBC_LSDMR_OP_ARFRSH)
#define CFG_LBC_LSDMR_3		( CFG_LBC_LSDMR_COMMON \
				| CFG_LBC_LSDMR_OP_ARFRSH)
#define CFG_LBC_LSDMR_4		( CFG_LBC_LSDMR_COMMON \
				| CFG_LBC_LSDMR_OP_MRW)
#define CFG_LBC_LSDMR_5		( CFG_LBC_LSDMR_COMMON \
				| CFG_LBC_LSDMR_OP_NORMAL)
#endif

/*
 * Serial Port
 */
#define CONFIG_CONS_INDEX     1
#undef CONFIG_SERIAL_SOFTWARE_FIFO
#define CFG_NS16550
#define CFG_NS16550_SERIAL
#define CFG_NS16550_REG_SIZE    1
#define CFG_NS16550_CLK		get_bus_freq(0)

#define CFG_BAUDRATE_TABLE  \
	{300, 600, 1200, 2400, 4800, 9600, 19200, 38400,115200}

#define CFG_NS16550_COM1        (CFG_IMMR+0x4500)
#define CFG_NS16550_COM2        (CFG_IMMR+0x4600)

#define CONFIG_CMDLINE_EDITING	1	/* add command line history	*/
/* Use the HUSH parser */
#define CFG_HUSH_PARSER
#ifdef  CFG_HUSH_PARSER
#define CFG_PROMPT_HUSH_PS2 "> "
#endif

/* pass open firmware flat tree */
#define CONFIG_OF_FLAT_TREE	1
#define CONFIG_OF_BOARD_SETUP	1

#define OF_CPU			"PowerPC,8349@0"
#define OF_SOC			"soc8349@e0000000"
#define OF_TBCLK		(bd->bi_busfreq / 4)
#define OF_STDOUT_PATH		"/soc8349@e0000000/serial@4500"

/* I2C */
#define CONFIG_HARD_I2C			/* I2C with hardware support*/
#undef CONFIG_SOFT_I2C			/* I2C bit-banged */
#define CONFIG_FSL_I2C
#define CONFIG_I2C_CMD_TREE
#define CFG_I2C_SPEED		400000	/* I2C speed and slave address */
#define CFG_I2C_SLAVE		0x7F
#define CFG_I2C_NOPROBES	{0x69}	/* Don't probe these addrs */
#define CFG_I2C1_OFFSET		0x3000
#define CFG_I2C2_OFFSET		0x3100
#define CFG_I2C_OFFSET		CFG_I2C2_OFFSET
/* could also use CONFIG_I2C_MULTI_BUS and CONFIG_SPD_BUS_NUM... */

/* TSEC */
#define CFG_TSEC1_OFFSET 0x24000
#define CFG_TSEC1 (CFG_IMMR+CFG_TSEC1_OFFSET)
#define CFG_TSEC2_OFFSET 0x25000
#define CFG_TSEC2 (CFG_IMMR+CFG_TSEC2_OFFSET)

/*
 * General PCI
 * Addresses are mapped 1-1.
 */
#define CFG_PCI1_MEM_BASE	0x80000000
#define CFG_PCI1_MEM_PHYS	CFG_PCI1_MEM_BASE
#define CFG_PCI1_MEM_SIZE	0x10000000	/* 256M */
#define CFG_PCI1_MMIO_BASE	0x90000000
#define CFG_PCI1_MMIO_PHYS	CFG_PCI1_MMIO_BASE
#define CFG_PCI1_MMIO_SIZE	0x10000000	/* 256M */
#define CFG_PCI1_IO_BASE	0x00000000
#define CFG_PCI1_IO_PHYS	0xE2000000
#define CFG_PCI1_IO_SIZE	0x00100000	/* 1M */

#define CFG_PCI2_MEM_BASE	0xA0000000
#define CFG_PCI2_MEM_PHYS	CFG_PCI2_MEM_BASE
#define CFG_PCI2_MEM_SIZE	0x10000000	/* 256M */
#define CFG_PCI2_MMIO_BASE	0xB0000000
#define CFG_PCI2_MMIO_PHYS	CFG_PCI2_MMIO_BASE
#define CFG_PCI2_MMIO_SIZE	0x10000000	/* 256M */
#define CFG_PCI2_IO_BASE	0x00000000
#define CFG_PCI2_IO_PHYS	0xE2100000
#define CFG_PCI2_IO_SIZE	0x00100000	/* 1M */

#if defined(CONFIG_PCI)