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diff --git a/doc/README.m52277evb b/doc/README.m52277evb deleted file mode 100644 index b6e955b..0000000 --- a/doc/README.m52277evb +++ /dev/null @@ -1,231 +0,0 @@ -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_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_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 --> |