readme.m5373evb

uboot详细解读可用启动引导LINUX2.6内核

Freescale MCF5373EVB ColdFire Development Board
================================================

TsiChung Liew([e-mail])
Created 11/08/07
===========================================


Changed files:
==============

- board/freescale/m5373evb/m5373evb.c	Dram setup
- board/freescale/m5373evb/mii.c	Mii access
- board/freescale/m5373evb/Makefile	Makefile
- board/freescale/m5373evb/config.mk	config make
- board/freescale/m5373evb/u-boot.lds	Linker description

- cpu/mcf532x/cpu.c		cpu specific code
- cpu/mcf532x/cpu_init.c	FBCS, Mux pins, icache and RTC extra regs
- cpu/mcf532x/interrupts.c	cpu specific interrupt support
- cpu/mcf532x/speed.c		system, pci, flexbus, and cpu clock
- cpu/mcf532x/Makefile		Makefile
- cpu/mcf532x/config.mk		config make
- cpu/mcf532x/start.S		start up assembly code

- doc/README.m5373evb		This readme file

- drivers/net/mcffec.c		ColdFire common FEC driver
- drivers/serial/mcfuart.c	ColdFire common UART driver
- drivers/rtc/mcfrtc.c		Realtime clock Driver

- include/asm-m68k/bitops.h		Bit operation function export
- include/asm-m68k/byteorder.h		Byte order functions
- include/asm-m68k/fec.h		FEC structure and definition
- include/asm-m68k/fsl_i2c.h		I2C structure and definition
- include/asm-m68k/global_data.h	Global data structure
- include/asm-m68k/immap.h		ColdFire specific header file and driver macros
- include/asm-m68k/immap_532x.h		mcf532x specific header file
- include/asm-m68k/io.h			io functions
- include/asm-m68k/m532x.h		mcf532x specific header file
- include/asm-m68k/posix_types.h	Posix
- include/asm-m68k/processor.h		header file
- include/asm-m68k/ptrace.h		Exception structure
- include/asm-m68k/rtc.h		Realtime clock header file
- include/asm-m68k/string.h		String function export
- include/asm-m68k/timer.h		Timer structure and definition
- include/asm-m68k/types.h		Data types definition
- include/asm-m68k/uart.h		Uart structure and definition
- include/asm-m68k/u-boot.h		u-boot structure

- include/configs/M5373EVB.h		Board specific configuration file

- lib_m68k/board.c			board init function
- lib_m68k/cache.c
- lib_m68k/interrupts			Coldfire common interrupt functions
- lib_m68k/m68k_linux.c
- lib_m68k/time.c			Timer functions (Dma timer and PIT)
- lib_m68k/traps.c			Exception init code

1 MCF5373 specific Options/Settings
====================================
1.1 pre-loader is no longer suppoer in thie coldfire family

1.2 Configuration settings for M5373EVB Development Board
CONFIG_MCF532x		-- define for all MCF532x CPUs
CONFIG_M5373		-- define for all Freescale MCF5373 CPUs
CONFIG_M5373EVB		-- define for M5373EVB board

CONFIG_MCFUART		-- define to use common CF Uart driver
CFG_UART_PORT		-- define UART port number, start with 0, 1 and 2
CONFIG_BAUDRATE		-- define UART baudrate

CONFIG_MCFRTC		-- define to use common CF RTC driver
CFG_MCFRTC_BASE		-- provide base address for RTC in immap.h
CFG_RTC_OSCILLATOR	-- define RTC clock frequency
RTC_DEBUG		-- define to show RTC debug message
CONFIG_CMD_DATE		-- enable to use date feature in u-boot

CONFIG_MCFFEC		-- define to use common CF FEC driver
CONFIG_NET_MULTI	-- define to use multi FEC in u-boot
CONFIG_MII		-- enable to use MII driver
CONFIG_CF_DOMII		-- enable to use MII feature in cmd_mii.c
CFG_DISCOVER_PHY	-- enable PHY discovery
CFG_RX_ETH_BUFFER	-- Set FEC Receive buffer
CFG_FAULT_ECHO_LINK_DOWN--
CFG_FEC0_PINMUX		-- Set FEC0 Pin configuration
CFG_FEC0_MIIBASE	-- Set FEC0 MII base register
MCFFEC_TOUT_LOOP	-- set FEC timeout loop

CONFIG_MCFTMR		-- define to use DMA timer
CONFIG_MCFPIT		-- define to use PIT timer

CONFIG_FSL_I2C		-- define to use FSL common I2C driver
CONFIG_HARD_I2C		-- define for I2C hardware support
CONFIG_SOFT_I2C		-- define for I2C bit-banged
CFG_I2C_SPEED		-- define for I2C speed
CFG_I2C_SLAVE		-- define for I2C slave address
CFG_I2C_OFFSET		-- define for I2C base address offset
CFG_IMMR		-- define for MBAR offset

CFG_MBAR		-- define MBAR offset

CONFIG_MONITOR_IS_IN_RAM -- Not support

CFG_INIT_RAM_ADDR	-- defines the base address of the MCF5373 internal SRAM

CFG_CSn_BASE	-- defines the Chip Select Base register
CFG_CSn_MASK	-- defines the Chip Select Mask register
CFG_CSn_CTRL	-- defines the Chip Select Control register

CFG_SDRAM_BASE	-- defines the DRAM Base

2. MEMORY MAP UNDER U-BOOT AND LINUX KERNEL
===========================================
2.1. System memory map:
	Flash:		0x00000000-0x3FFFFFFF (1024MB)
	DDR:		0x40000000-0x7FFFFFFF (1024MB)
	SRAM:		0x80000000-0x8FFFFFFF (256MB)
	IP:		0xF0000000-0xFFFFFFFF (256MB)

2.2. For the initial bringup, we adopted a consistent memory scheme between u-boot and
	linux kernel, you can customize it based on your system requirements:
	Flash0:		0x00000000-0x00FFFFFF (16MB)

	DDR:		0x40000000-0x4FFFFFFF (256MB)
	SRAM:		0x80000000-0x80007FFF (32KB)
	IP:		0xFC000000-0xFC0FFFFF (64KB)

3. COMPILATION
==============
3.1	To create U-Boot the gcc-4.1-xx compiler set (ColdFire ELF or
uClinux version) from codesourcery.com was used. Download it from:
http://www.codesourcery.com/gnu_toolchains/coldfire/download.html

3.2 Compilation
   export CROSS_COMPILE=cross-compile-prefix
   cd u-boot-1.x.x
   make distclean
   make M5373EVB_config
   make

4. SCREEN DUMP
==============
4.1 M5373EVB Development board
    (NOTE: May not show exactly the same)

U-Boot 1.3.0 (Nov 8 2007 - 12:44:08)

CPU:   Freescale MCF5373 (Mask:65 Version:1)
       CPU CLK 240 Mhz BUS CLK 80 Mhz
Board: Freescale FireEngine 5373 EVB
I2C:   ready
DRAM:  32 MB
FLASH: 2 MB
In:    serial
Out:   serial
Err:   serial
NAND:  16 MiB
Net:   FEC0
-> print
bootdelay=1
baudrate=115200
ethaddr=00:e0:0c:bc:e5:60
hostname=M5373EVB
netdev=eth0
loadaddr=40010000
load=tftp ${loadaddr) ${u-boot}
upd=run load; run prog
prog=prot off 0 2ffff;era 0 2ffff;cp.b ${loadaddr} 0 ${filesize};save
ethact=FEC0
u-boot=u-boot.bin
gatewayip=192.168.1.1
netmask=255.255.255.0
ipaddr=192.168.1.3
serverip=192.168.1.2
stdin=serial
stdout=serial
stderr=serial
mem=261632k

Environment size: 401/8188 bytes
-> bdinfo
memstart    = 0x40000000
memsize     = 0x02000000
flashstart  = 0x00000000
flashsize   = 0x00200000
flashoffset = 0x00000000
sramstart   = 0x80000000
sramsize    = 0x00008000
mbar	    = 0xFC000000
busfreq     =	  80 MHz
ethaddr     = 00:E0:0C:BC:E5:60
ip_addr     = 192.168.1.3
baudrate    = 115200 bps
->
-> help
?	- alias for 'help'
autoscr - run script from memory
base	- print or set address offset
bdinfo	- print Board Info structure
boot	- boot default, i.e., run 'bootcmd'
bootd	- boot default, i.e., run 'bootcmd'
bootelf - Boot from an ELF image in memory
bootm	- boot application image from memory
bootp	- boot image via network using BootP/TFTP protocol
bootvx	- Boot vxWorks from an ELF image
cmp	- memory compare
coninfo - print console devices and information
cp	- memory copy
crc32	- checksum calculation
date	- get/set/reset date & time
dcache	- enable or disable data cache
echo	- echo args to console
erase	- erase FLASH memory
flinfo	- print FLASH memory information
go	- start application at address 'addr'
help	- print online help
icache	- enable or disable instruction cache
icrc32	- checksum calculation
iloop	- infinite loop on address range
imd	- i2c memory display
iminfo	- print header information for application image
imls	- list all images found in flash
imm	- i2c memory modify (auto-incrementing)
imw	- memory write (fill)
inm	- memory modify (constant address)
iprobe	- probe to discover valid I2C chip addresses
itest	- return true/false on integer compare
loadb	- load binary file over serial line (kermit mode)
loads	- load S-Record file over serial line
loady	- load binary file over serial line (ymodem mode)
loop	- infinite loop on address range
ls	- list files in a directory (default /)
md	- memory display
mii	- MII utility commands
mm	- memory modify (auto-incrementing)
mtest	- simple RAM test
mw	- memory write (fill)
nand	- NAND sub-system
nboot	- boot from NAND device
nfs	- boot image via network using NFS protocol
nm	- memory modify (constant address)
ping	- send ICMP ECHO_REQUEST to network host
printenv- print environment variables
protect - enable or disable FLASH write protection
rarpboot- boot image via network using RARP/TFTP protocol
reset	- Perform RESET of the CPU
run	- run commands in an environment variable
saveenv - save environment variables to persistent storage
setenv	- set environment variables
sleep	- delay execution for some time
tftpboot- boot image via network using TFTP protocol
version - print monitor version
-> tftp 0x40800000 uImage
Using FEC0 device
TFTP from server 192.168.1.3; our IP address is 192.168.1.3 Filename 'uImage'.
Load address: 0x40800000
Loading: #################################################################
	  #################################################################
	  ##########
done
Bytes transferred = 2053270 (1f5496 hex)
-> bootm 0x40800000
## Booting image at 40800000 ...
    Image Name:   Linux Kernel Image
    Created:	  2007-11-07  20:33:08 UTC
    Image Type:   M68K Linux Kernel Image (gzip compressed)
    Data Size:	  2053206 Bytes =  2 MB
    Load Address: 40020000
    Entry Point:  40020000
    Verifying Checksum ... OK
    Uncompressing Kernel Image ... OK
Linux version 2.6.22-uc1 (mattw@loa) (gcc version 4.2.1 (Sourcery G++ Lite 4.2-7


uClinux/COLDFIRE(m537x)
COLDFIRE port done by Greg Ungerer, [e-mail] Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne Built 1 zonelists.  Total pages: 8128 Kernel command line: rootfstype=romfs PID hash table entries: 128 (order: 7, 512 bytes) Dentry cache hash table entries: 4096 (order: 2, 16384 bytes) Inode-cache hash table entries: 2048 (order: 1, 8192 bytes) Memory available: 28092k/32768k RAM, (1788k kernel code, 244k data) Mount-cache hash table entries: 512
NET: Registered protocol family 16
USB-MCF537x: (HOST module) EHCI device is registered
USB-MCF537x: (OTG module) EHCI device is registered
USB-MCF537x: (OTG module) UDC device is registered
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 1024 (order: 1, 8192 bytes) TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024) TCP reno registered
JFFS2 version 2.2. (NAND)