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u-boot/doc/README.m54418twr
Angelo Dureghello 6ba2da90de m68k: doc: update outdated documentation 
Update m68k documentation to reflect the current ColdFire
architecture support status.

Signed-off-by: Angelo Dureghello <angelo@sysam.it>
2017-11-06 09:59:02 -05:00

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Freescale MCF54418TWR ColdFire Development Board
================================================
TsiChung Liew(Tsi-Chung.Liew@freescale.com)
Created Mar 22, 2012
===========================================
Changed files:
==============
- board/freescale/m54418twr/m54418twr.c Dram setup
- board/freescale/m54418twr/Makefile Makefile
- board/freescale/m54418twr/config.mk config make
- board/freescale/m54418twr/u-boot.lds Linker description
- board/freescale/m54418twr/sbf_dram_init.S
DDR/SDRAM initialization
- arch/m68k/cpu/mcf5445x/cpu.c cpu specific code
- arch/m68k/cpu/mcf5445x/cpu_init.c Flexbus ChipSelect, Mux pins setup, icache and RTC extra regs
- arch/m68k/cpu/mcf5445x/interrupts.c cpu specific interrupt support
- arch/m68k/cpu/mcf5445x/speed.c system, pci, flexbus, and cpu clock
- arch/m68k/cpu/mcf5445x/Makefile Makefile
- arch/m68k/cpu/mcf5445x/config.mk config make
- arch/m68k/cpu/mcf5445x/start.S start up assembly code
- doc/README.m54418twr This readme file
- drivers/net/mcffec.c ColdFire common FEC driver
- drivers/net/mcfmii.c ColdFire common MII driver
- drivers/serial/mcfuart.c ColdFire common UART driver
- arch/m68k/include/asm/bitops.h Bit operation function export
- arch/m68k/include/asm/byteorder.h Byte order functions
- arch/m68k/include/asm/fec.h FEC structure and definition
- arch/m68k/include/asm/global_data.h Global data structure
- arch/m68k/include/asm/immap.h ColdFire specific header file and driver macros
- arch/m68k/include/asm/immap_5441x.h mcf5441x specific header file
- arch/m68k/include/asm/io.h io functions
- arch/m68k/include/asm/m5441x.h mcf5441x specific header file
- arch/m68k/include/asm/posix_types.h Posix
- arch/m68k/include/asm/processor.h header file
- arch/m68k/include/asm/ptrace.h Exception structure
- arch/m68k/include/asm/rtc.h Realtime clock header file
- arch/m68k/include/asm/string.h String function export
- arch/m68k/include/asm/timer.h Timer structure and definition
- arch/m68k/include/asm/types.h Data types definition
- arch/m68k/include/asm/uart.h Uart structure and definition
- arch/m68k/include/asm/u-boot.h u-boot structure
- include/configs/M54418TWR.h Board specific configuration file
- arch/m68k/lib/board.c board init function
- arch/m68k/lib/cache.c
- arch/m68k/lib/interrupts.c Coldfire common interrupt functions
- arch/m68k/lib/time.c Timer functions (Dma timer and PIT)
- arch/m68k/lib/traps.c Exception init code
1 MCF5441x specific Options/Settings
====================================
1.1 pre-loader is no longer suppoer in thie coldfire family
1.2 Configuration settings for M54418TWR Development Board
CONFIG_MCF5441x -- define for all MCF5441x CPUs
CONFIG_M54418 -- define for all Freescale MCF54418 CPUs
CONFIG_M54418TWR -- define for M54418TWR 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_MCFFEC -- define to use common CF FEC driver
CONFIG_MII -- enable to use MII driver
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_MCFTMR -- define to use DMA timer
CONFIG_SYS_IMMR -- define for MBAR offset
CONFIG_EXTRA_CLOCK -- Enable extra clock such as vco, flexbus, pci, etc
CONFIG_SYS_MBAR -- define MBAR offset
CONFIG_MONITOR_IS_IN_RAM -- Not support
CONFIG_SYS_INIT_RAM_ADDR -- defines the base address of the MCF54455 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:
MRAM: 0x00000000-0x0003FFFF (256KB)
DDR: 0x40000000-0x47FFFFFF (128MB)
SRAM: 0x80000000-0x8000FFFF (64KB)
IP: 0xE0000000-0xFFFFFFFF (512MB)
3. COMPILATION
==============
3.1 To create U-Boot the gcc-4.x compiler set (ColdFire ELF 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
make distclean
make M54418TWR_config, or - default to spi serial flash boot, 50Mhz input clock
make M54418TWR_nand_mii_config, or - default to nand flash boot, mii mode, 25Mhz input clock
make M54418TWR_nand_rmii_config, or - default to nand flash boot, rmii mode, 50Mhz input clock
make M54418TWR_nand_rmii_lowfreq_config, or - default to nand flash boot, rmii mode, 50Mhz input clock
make M54418TWR_serial_mii_config, or - default to spi serial flash boot, 25Mhz input clock
make M54418TWR_serial_rmii_config, or - default to spi serial flash boot, 50Mhz input clock
make
4. SCREEN DUMP
==============
4.1 M54418TWR Development board
Boot from NAND flash (NOTE: May not show exactly the same)
U-Boot 2012.10-00209-g12ae1d8-dirty (Oct 18 2012 - 15:54:54)
CPU: Freescale MCF54418 (Mask:a3 Version:1)
CPU CLK 250 MHz BUS CLK 125 MHz FLB CLK 125 MHz
INP CLK 50 MHz VCO CLK 500 MHz
Board: Freescale MCF54418 Tower System
SPI: ready
DRAM: 128 MiB
NAND: 256 MiB
In: serial
Out: serial
Err: serial
Net: FEC0, FEC1
-> pri
baudrate=115200
bootargs=root=/dev/mtdblock2 rw rootfstype=jffs2 mtdparts=NAND:1M(u-boot)ro,7M(k
ernel)ro,-(jffs2) console=ttyS0,115200
bootdelay=2
eth1addr=00:e0:0c:bc:e5:61
ethact=FEC0
ethaddr=00:e0:0c:bc:e5:60
fileaddr=40010000
filesize=27354
gatewayip=192.168.1.1
hostname=M54418TWR
inpclk=50000000
ipaddr=192.168.1.2
load=tftp ${loadaddr} ${u-boot};
loadaddr=0x40010000
mem=129024k
netdev=eth0
netmask=255.255.255.0
prog=nand device 0;nand erase 0 40000;nb_update ${loadaddr} ${filesize};save
serverip=192.168.1.1
stderr=serial
stdin=serial
stdout=serial
u-boot=u-boot.bin
upd=run load; run prog
Environment size: 653/131068 bytes
-> bdinfo
memstart = 0x40000000
memsize = 0x08000000
flashstart = 0x00000000
flashsize = 0x00000000
flashoffset = 0x00000000
sramstart = 0x80000000
sramsize = 0x00010000
mbar = 0xFC000000
cpufreq = 250 MHz
busfreq = 125 MHz
flbfreq = 125 MHz
inpfreq = 50 MHz
vcofreq = 500 MHz
ethaddr = 00:e0:0c:bc:e5:60
eth1addr = 00:e0:0c:bc:e5:61
ip_addr = 192.168.1.2
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
dcache - enable or disable data cache
dhcp - boot image via network using DHCP/TFTP protocol
echo - echo args to console
editenv - edit environment variable
env - environment handling commands
exit - exit script
false - do nothing, unsuccessfully
go - start application at address 'addr'
help - print command description/usage
icache - enable or disable instruction cache
iminfo - print header information for application image
imxtract- extract a part of a multi-image
itest - return true/false on integer compare
loop - infinite loop on address range
md - memory display
mdio - MDIO utility commands
mii - MII utility commands
mm - memory modify (auto-incrementing address)
mtest - simple RAM read/write test
mw - memory write (fill)
nand - NAND sub-system
nb_update- Nand boot update program
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
reginfo - print register information
reset - Perform RESET of the CPU
run - run commands in an environment variable
saveenv - save environment variables to persistent storage
setenv - set environment variables
sf - SPI flash sub-system
showvar - print local hushshell variables
sleep - delay execution for some time
source - run script from memory
sspi - SPI utility command
test - minimal test like /bin/sh
tftpboot- boot image via network using TFTP protocol
true - do nothing, successfully
version - print monitor, compiler and linker version
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