Freescale MCF5475EVB ColdFire Development Board
  ================================================
  
  TsiChung Liew(Tsi-Chung.Liew@freescale.com)
  Created Jan 08, 2008
  ===========================================
  
  
  Changed files:
  ==============
  
  - board/freescale/m547xevb/m547xevb.c	Dram setup, IDE pre init, and PCI init
  - board/freescale/m547xevb/mii.c	MII init
  - board/freescale/m547xevb/Makefile	Makefile
  - board/freescale/m547xevb/config.mk	config make
  - board/freescale/m547xevb/u-boot.lds	Linker description

  - arch/m68k/cpu/mcf547x_8x/cpu.c			cpu specific code
  - arch/m68k/cpu/mcf547x_8x/cpu_init.c		Flexbus ChipSelect, Mux pins setup, icache and RTC extra regs
  - arch/m68k/cpu/mcf547x_8x/interrupts.c		cpu specific interrupt support
  - arch/m68k/cpu/mcf547x_8x/slicetimer.c		Timer support
  - arch/m68k/cpu/mcf547x_8x/speed.c		system, pci, flexbus, and cpu clock
  - arch/m68k/cpu/mcf547x_8x/Makefile		Makefile
  - arch/m68k/cpu/mcf547x_8x/config.mk		config make
  - arch/m68k/cpu/mcf547x_8x/start.S		start up assembly code

  
  - doc/README.m5475evb			This readme file
  
  - drivers/dma/MCD_dmaApi.c		DMA API functions
  - drivers/dma/MCD_tasks.c		DMA Tasks
  - drivers/dma/MCD_tasksInit.c		DMA Tasks Init
  - drivers/net/fsl_mcdmafec.c		ColdFire common DMA FEC driver
  - drivers/serial/mcfuart.c		ColdFire common UART driver
  
  - include/MCD_dma.h			DMA header file
  - include/MCD_progCheck.h		DMA header file
  - include/MCD_tasksInit.h		DMA header file
  - include/asm-m68k/bitops.h		Bit operation function export
  - include/asm-m68k/byteorder.h		Byte order functions
  - include/asm-m68k/errno.h		Error Number definition
  - include/asm-m68k/fec.h		FEC structure and definition
  - include/asm-m68k/fsl_i2c.h		I2C structure and definition
  - include/asm-m68k/fsl_mcddmafec.h	DMA FEC 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_547x_8x.h	mcf547x_8x specific header file
  - include/asm-m68k/io.h			io functions
  - include/asm-m68k/m547x_8x.h		mcf547x_8x 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/M5475EVB.h		Board specific configuration file

  - arch/m68k/lib/board.c			board init function
  - arch/m68k/lib/cache.c
  - arch/m68k/lib/interrupts			Coldfire common interrupt functions
  - arch/m68k/lib/m68k_linux.c
  - arch/m68k/lib/traps.c			Exception init code

  
  1 MCF547x specific Options/Settings
  ====================================
  1.1 pre-loader is no longer suppoer in thie coldfire family
  
  1.2 Configuration settings for M5475EVB Development Board
  CONFIG_MCF547x_8x	-- define for all MCF547x_8x CPUs
  CONFIG_M547x		-- define for all Freescale MCF547x CPUs
  CONFIG_M5475		-- define for M5475EVB board
  
  CONFIG_MCFUART		-- define to use common CF Uart driver

  CONFIG_SYS_UART_PORT		-- define UART port number, start with 0, 1 and 2

  CONFIG_BAUDRATE		-- define UART baudrate
  
  CONFIG_FSLDMAFEC	-- define to use common dma 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

  CONFIG_SYS_DISCOVER_PHY	-- enable PHY discovery
  CONFIG_SYS_RX_ETH_BUFFER	-- Set FEC Receive buffer
  CONFIG_SYS_FAULT_ECHO_LINK_DOWN--
  CONFIG_SYS_FEC0_PINMUX		-- Set FEC0 Pin configuration
  CONFIG_SYS_FEC1_PINMUX		-- Set FEC1 Pin configuration
  CONFIG_SYS_FEC0_MIIBASE	-- Set FEC0 MII base register
  CONFIG_SYS_FEC1_MIIBASE	-- Set FEC0 MII base register

  MCFFEC_TOUT_LOOP	-- set FEC timeout loop
  CONFIG_HAS_ETH1		-- define to enable second FEC in u-boot
  
  CONFIG_CMD_USB		-- enable USB commands
  CONFIG_USB_OHCI_NEW	-- enable USB OHCI driver
  CONFIG_USB_STORAGE	-- enable USB Storage device
  CONFIG_DOS_PARTITION	-- enable DOS read/write
  
  CONFIG_SLTTMR		-- define to use SLT 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

  CONFIG_SYS_I2C_SPEED		-- define for I2C speed
  CONFIG_SYS_I2C_SLAVE		-- define for I2C slave address
  CONFIG_SYS_I2C_OFFSET		-- define for I2C base address offset
  CONFIG_SYS_IMMR		-- define for MBAR offset

  CONFIG_PCI		-- define for PCI support
  CONFIG_PCI_PNP		-- define for Plug n play support

  CONFIG_SKIPPCI_HOSTBRIDGE	-- SKIP PCI Host bridge

  CONFIG_SYS_PCI_MEM_BUS		-- PCI memory logical offset
  CONFIG_SYS_PCI_MEM_PHYS	-- PCI memory physical offset
  CONFIG_SYS_PCI_MEM_SIZE	-- PCI memory size
  CONFIG_SYS_PCI_IO_BUS		-- PCI IO logical offset
  CONFIG_SYS_PCI_IO_PHYS		-- PCI IO physical offset
  CONFIG_SYS_PCI_IO_SIZE		-- PCI IO size
  CONFIG_SYS_PCI_CFG_BUS		-- PCI Configuration logical offset
  CONFIG_SYS_PCI_CFG_PHYS	-- PCI Configuration physical offset
  CONFIG_SYS_PCI_CFG_SIZE	-- PCI Configuration size
  
  CONFIG_SYS_MBAR		-- define MBAR offset

  
  CONFIG_MONITOR_IS_IN_RAM -- Not support

  CONFIG_SYS_INIT_RAM_ADDR	-- defines the base address of the MCF547x internal SRAM

  CONFIG_SYS_CSn_BASE	-- defines the Chip Select Base register
  CONFIG_SYS_CSn_MASK	-- defines the Chip Select Mask register
  CONFIG_SYS_CSn_CTRL	-- defines the Chip Select Control register

  CONFIG_SYS_SDRAM_BASE	-- defines the DRAM Base

  
  2. MEMORY MAP UNDER U-BOOT AND LINUX KERNEL
  ===========================================
  2.1. System memory map:
  	Flash:		0xFF800000-0xFFFFFFFF (8MB)
  	DDR:		0x00000000-0x3FFFFFFF (1024MB)
  	SRAM:		0xF2000000-0xF2000FFF (4KB)
  	PCI:		0x70000000-0x8FFFFFFF (512MB)
  	IP:		0xF0000000-0xFFFFFFFF (256MB)
  
  3. COMPILATION
  ==============
  3.1	To create U-Boot the gcc-4.x 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 M5475AFE_config, or	- boot 2MB, RAM 64MB
     make M5475BFE_config, or	- boot 2MB, code 16MB, RAM 64MB
     make M5475CFE_config, or	- boot 2MB, code 16MB, Video, USB, RAM 64MB
     make M5475DFE_config, or	- boot 2MB, USB, RAM 64MB
     make M5475EFE_config, or	- boot 2MB, Video, USB, RAM 64MB
     make M5475FFE_config, or	- boot 2MB, code 32MB, Video, USB, RAM 128MB
     make M5475GFE_config, or	- boot 2MB, RAM 64MB
     make
  
  5. SCREEN DUMP
  ==============
  5.1
  
  U-Boot 1.3.1 (Jan  8 2008 - 12:47:44)
  
  CPU:   Freescale MCF5475
         CPU CLK 266 Mhz BUS CLK 133 Mhz
  Board: Freescale FireEngine 5475 EVB
  I2C:   ready
  DRAM:  64 MB
  FLASH: 18 MB
  In:    serial
  Out:   serial
  Err:   serial
  Net:   FEC0, FEC1
  -> pri
  bootdelay=1
  baudrate=115200
  ethaddr=00:e0:0c:bc:e5:60
  eth1addr=00:e0:0c:bc:e5:61
  ipaddr=192.162.1.2
  serverip=192.162.1.1
  gatewayip=192.162.1.1
  netmask=255.255.255.0
  hostname=M547xEVB
  netdev=eth0
  loadaddr=10000
  u-boot=u-boot.bin
  load=tftp ${loadaddr) ${u-boot}
  upd=run load; run prog
  prog=prot off bank 1;era ff800000 ff82ffff;cp.b ${loadaddr} ff800000 ${filesize};save
  stdin=serial
  stdout=serial
  stderr=serial
  ethact=FEC0
  mem=65024k
  
  Environment size: 433/8188 bytes
  -> bdin
  memstart    = 0x00000000
  memsize     = 0x04000000
  flashstart  = 0xFF800000
  flashsize   = 0x01200000
  flashoffset = 0x00000000
  sramstart   = 0xF2000000
  sramsize    = 0x00001000

  mbar	    = 0xF0000000

  busfreq     = 133.333 MHz

  pcifreq     =	   0 MHz

  ethaddr     = 00:E0:0C:BC:E5:60
  eth1addr    = 00:E0:0C:BC:E5:61
  ip_addr     = 192.162.1.2
  baudrate    = 115200 bps
  -> ?

  ?	- alias for 'help'

  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
  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

  i2c	- I2C sub-system

  icache	- enable or disable instruction cache

  iminfo	- print header information for application image
  imls	- list all images found in flash

  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
  md	- memory display
  mii	- MII utility commands
  mm	- memory modify (auto-incrementing)
  mtest	- simple RAM test
  mw	- memory write (fill)

  nfs	- boot image via network using NFS protocol

  nm	- memory modify (constant address)
  pci	- list and access PCI Configuration Space

  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

  source	- run script from memory

  tftpboot- boot image via network using TFTP protocol

  usb	- USB sub-system

  usbboot - boot from USB device
  version - print monitor version
  -> usb start
  (Re)start USB...
  USB:   OHCI pci controller (1131, 1561) found @(0:17:0)
  OHCI regs address 0x80000000
  scanning bus for devices... 2 USB Device(s) found
         scanning bus for storage devices... 1 Storage Device(s) found
  ->