--- /dev/null
+Freescale MCF52277EVB ColdFire Development Board
+================================================
+
+TsiChung Liew(Tsi-Chung.Liew@freescale.com)
+Created Jan 8, 2008
+===========================================
+
+
+Changed files:
+==============
+
+- board/freescale/m52277evb/m52277evb.c Dram setup
+- board/freescale/m52277evb/Makefile Makefile
+- board/freescale/m52277evb/config.mk config make
+- board/freescale/m52277evb/u-boot.lds Linker description
+
+- arch/m68k/cpu/mcf5227x/cpu.c cpu specific code
+- arch/m68k/cpu/mcf5227x/cpu_init.c FBCS, Mux pins, icache and RTC extra regs
+- arch/m68k/cpu/mcf5227x/interrupts.c cpu specific interrupt support
+- arch/m68k/cpu/mcf5227x/speed.c system, flexbus, and cpu clock
+- arch/m68k/cpu/mcf5227x/Makefile Makefile
+- arch/m68k/cpu/mcf5227x/config.mk config make
+- arch/m68k/cpu/mcf5227x/start.S start up assembly code
+
+- doc/README.m52277evb This readme file
+
+- 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/crossbar.h CrossBar structure and definition
+- include/asm-m68k/dspi.h DSPI structure and definition
+- include/asm-m68k/edma.h eDMA structure and definition
+- include/asm-m68k/flexbus.h FlexBus 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_5227x.h mcf5227x specific header file
+- include/asm-m68k/io.h io functions
+- include/asm-m68k/lcd.h LCD structure and definition
+- include/asm-m68k/m5227x.h mcf5227x 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/ssi.h SSI structure and definition
+- 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/M52277EVB.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/time.c Timer functions (Dma timer and PIT)
+- arch/m68k/lib/traps.c Exception init code
+
+1 MCF52277 specific Options/Settings
+====================================
+1.1 pre-loader is no longer suppoer in this coldfire family
+
+1.2 Configuration settings for M52277EVB Development Board
+CONFIG_MCF5227x -- define for all MCF5227x CPUs
+CONFIG_M52277 -- define for all Freescale MCF52277 CPUs
+CONFIG_M52277EVB -- define for M52277EVB 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_MCFRTC -- define to use common CF RTC driver
+CONFIG_SYS_MCFRTC_BASE -- provide base address for RTC in immap.h
+CONFIG_SYS_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_MCFTMR -- define to use DMA timer
+CONFIG_MCFPIT -- define to use PIT timer
+
+CONFIG_SYS_I2C_FSL -- define to use FSL common I2C driver
+CONFIG_HARD_I2C -- define for I2C hardware support
+CONFIG_SYS_I2C_SOFT -- 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_SYS_MBAR -- define MBAR offset
+
+CONFIG_MONITOR_IS_IN_RAM -- Not support
+
+CONFIG_SYS_INIT_RAM_ADDR -- defines the base address of the MCF52277 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
+
+CONFIG_LCD and CONFIG_CMD_USB are not supported in this current u-boot,
+update will be provided at later time
+
+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 (64MB)
+ 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 M52277EVB_config
+ make
+
+4. SCREEN DUMP
+==============
+4.1 M52277EVB Development board
+ (NOTE: May not show exactly the same)
+
+U-Boot 1.3.1 (Jan 8 2008 - 12:44:08)
+
+CPU: Freescale MCF52277 (Mask:6c Version:0)
+ CPU CLK 160 Mhz BUS CLK 80 Mhz FLB CLK 80 MHZ
+ INP CLK 16 Mhz VCO CLK 480 Mhz
+Board: Freescale 52277 EVB
+I2C: ready
+DRAM: 64 MB
+FLASH: 16 MB
+In: serial
+Out: serial
+Err: serial
+-> print
+baudrate=115200
+hostname=M52277EVB
+inpclk=16000000
+loadaddr=(0x40000000 + 0x10000)
+load=tftp ${loadaddr) ${u-boot}
+upd=run load; run prog
+prog=prot off 0 3ffff;era 0 3ffff;cp.b ${loadaddr} 0 ${filesize};save
+u-boot=u-boot.bin
+stdin=serial
+stdout=serial
+stderr=serial
+mem=65024k
+
+Environment size: 280/32764 bytes
+-> bdinfo
+memstart = 0x40000000
+memsize = 0x04000000
+flashstart = 0x00000000
+flashsize = 0x01000000
+flashoffset = 0x00000000
+sramstart = 0x80000000
+sramsize = 0x00008000
+mbar = 0xFC000000
+busfreq = 80 MHz
+flbfreq = 80 Mhz
+inpfreq = 16 Mhz
+vcofreq = 480 Mhz
+
+baudrate = 115200 bps
+->
+-> help
+? - 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
+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
+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
+ls - list files in a directory (default /)
+md - memory display
+mm - memory modify (auto-incrementing)
+mtest - simple RAM test
+mw - memory write (fill)
+nm - memory modify (constant address)
+ping - send ICMP ECHO_REQUEST to network host
+printenv- print environment variables
+protect - enable or disable FLASH write protection
+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
+version - print monitor version
+->
Code Review / kvmfornfv.git / blobdiff