1 Freescale MCF54418TWR ColdFire Development Board
2 ================================================
4 TsiChung Liew(Tsi-Chung.Liew@freescale.com)
6 ===========================================
12 - board/freescale/m54418twr/m54418twr.c Dram setup
13 - board/freescale/m54418twr/Makefile Makefile
14 - board/freescale/m54418twr/config.mk config make
15 - board/freescale/m54418twr/u-boot.lds Linker description
16 - board/freescale/m54418twr/sbf_dram_init.S
17 DDR/SDRAM initialization
19 - arch/m68k/cpu/mcf5445x/cpu.c cpu specific code
20 - arch/m68k/cpu/mcf5445x/cpu_init.c Flexbus ChipSelect, Mux pins setup, icache and RTC extra regs
21 - arch/m68k/cpu/mcf5445x/interrupts.c cpu specific interrupt support
22 - arch/m68k/cpu/mcf5445x/speed.c system, pci, flexbus, and cpu clock
23 - arch/m68k/cpu/mcf5445x/Makefile Makefile
24 - arch/m68k/cpu/mcf5445x/config.mk config make
25 - arch/m68k/cpu/mcf5445x/start.S start up assembly code
27 - doc/README.m54418twr This readme file
29 - drivers/net/mcffec.c ColdFire common FEC driver
30 - drivers/net/mcfmii.c ColdFire common MII driver
31 - drivers/serial/mcfuart.c ColdFire common UART driver
33 - arch/m68k/include/asm/bitops.h Bit operation function export
34 - arch/m68k/include/asm/byteorder.h Byte order functions
35 - arch/m68k/include/asm/fec.h FEC structure and definition
36 - arch/m68k/include/asm/global_data.h Global data structure
37 - arch/m68k/include/asm/immap.h ColdFire specific header file and driver macros
38 - arch/m68k/include/asm/immap_5441x.h mcf5441x specific header file
39 - arch/m68k/include/asm/io.h io functions
40 - arch/m68k/include/asm/m5441x.h mcf5441x specific header file
41 - arch/m68k/include/asm/posix_types.h Posix
42 - arch/m68k/include/asm/processor.h header file
43 - arch/m68k/include/asm/ptrace.h Exception structure
44 - arch/m68k/include/asm/rtc.h Realtime clock header file
45 - arch/m68k/include/asm/string.h String function export
46 - arch/m68k/include/asm/timer.h Timer structure and definition
47 - arch/m68k/include/asm/types.h Data types definition
48 - arch/m68k/include/asm/uart.h Uart structure and definition
49 - arch/m68k/include/asm/u-boot.h u-boot structure
51 - include/configs/M54418TWR.h Board specific configuration file
53 - arch/m68k/lib/board.c board init function
54 - arch/m68k/lib/cache.c
55 - arch/m68k/lib/interrupts.c Coldfire common interrupt functions
56 - arch/m68k/lib/time.c Timer functions (Dma timer and PIT)
57 - arch/m68k/lib/traps.c Exception init code
59 1 MCF5441x specific Options/Settings
60 ====================================
61 1.1 pre-loader is no longer suppoer in thie coldfire family
63 1.2 Configuration settings for M54418TWR Development Board
64 CONFIG_MCF5441x -- define for all MCF5441x CPUs
65 CONFIG_M54418 -- define for all Freescale MCF54418 CPUs
67 CONFIG_MCFUART -- define to use common CF Uart driver
68 CONFIG_SYS_UART_PORT -- define UART port number, start with 0, 1 and 2
69 CONFIG_BAUDRATE -- define UART baudrate
71 CONFIG_MCFFEC -- define to use common CF FEC driver
72 CONFIG_MII -- enable to use MII driver
73 CONFIG_SYS_DISCOVER_PHY -- enable PHY discovery
74 CONFIG_SYS_RX_ETH_BUFFER -- Set FEC Receive buffer
75 CONFIG_SYS_FAULT_ECHO_LINK_DOWN --
76 CONFIG_SYS_FEC0_PINMUX -- Set FEC0 Pin configuration
77 CONFIG_SYS_FEC1_PINMUX -- Set FEC1 Pin configuration
78 CONFIG_SYS_FEC0_MIIBASE -- Set FEC0 MII base register
79 CONFIG_SYS_FEC1_MIIBASE -- Set FEC0 MII base register
80 MCFFEC_TOUT_LOOP -- set FEC timeout loop
81 CONFIG_HAS_ETH1 -- define to enable second FEC in u-boot
83 CONFIG_MCFTMR -- define to use DMA timer
85 CONFIG_SYS_IMMR -- define for MBAR offset
87 CONFIG_EXTRA_CLOCK -- Enable extra clock such as vco, flexbus, pci, etc
89 CONFIG_SYS_MBAR -- define MBAR offset
91 CONFIG_MONITOR_IS_IN_RAM -- Not support
93 CONFIG_SYS_INIT_RAM_ADDR -- defines the base address of the MCF54455 internal SRAM
95 CONFIG_SYS_CSn_BASE -- defines the Chip Select Base register
96 CONFIG_SYS_CSn_MASK -- defines the Chip Select Mask register
97 CONFIG_SYS_CSn_CTRL -- defines the Chip Select Control register
99 CONFIG_SYS_SDRAM_BASE -- defines the DRAM Base
101 2. MEMORY MAP UNDER U-BOOT AND LINUX KERNEL
102 ===========================================
103 2.1. System memory map:
104 MRAM: 0x00000000-0x0003FFFF (256KB)
105 DDR: 0x40000000-0x47FFFFFF (128MB)
106 SRAM: 0x80000000-0x8000FFFF (64KB)
107 IP: 0xE0000000-0xFFFFFFFF (512MB)
111 3.1 To create U-Boot the gcc-4.x compiler set (ColdFire ELF version)
112 from codesourcery.com was used. Download it from:
113 http://www.codesourcery.com/gnu_toolchains/coldfire/download.html
116 export CROSS_COMPILE=cross-compile-prefix
119 make M54418TWR_config, or - default to spi serial flash boot, 50Mhz input clock
120 make M54418TWR_nand_mii_config, or - default to nand flash boot, mii mode, 25Mhz input clock
121 make M54418TWR_nand_rmii_config, or - default to nand flash boot, rmii mode, 50Mhz input clock
122 make M54418TWR_nand_rmii_lowfreq_config, or - default to nand flash boot, rmii mode, 50Mhz input clock
123 make M54418TWR_serial_mii_config, or - default to spi serial flash boot, 25Mhz input clock
124 make M54418TWR_serial_rmii_config, or - default to spi serial flash boot, 50Mhz input clock
129 4.1 M54418TWR Development board
130 Boot from NAND flash (NOTE: May not show exactly the same)
132 U-Boot 2012.10-00209-g12ae1d8-dirty (Oct 18 2012 - 15:54:54)
134 CPU: Freescale MCF54418 (Mask:a3 Version:1)
135 CPU CLK 250 MHz BUS CLK 125 MHz FLB CLK 125 MHz
136 INP CLK 50 MHz VCO CLK 500 MHz
137 Board: Freescale MCF54418 Tower System
147 bootargs=root=/dev/mtdblock2 rw rootfstype=jffs2 mtdparts=NAND:1M(u-boot)ro,7M(k
148 ernel)ro,-(jffs2) console=ttyS0,115200
150 eth1addr=00:e0:0c:bc:e5:61
152 ethaddr=00:e0:0c:bc:e5:60
155 gatewayip=192.168.1.1
159 load=tftp ${loadaddr} ${u-boot};
163 netmask=255.255.255.0
164 prog=nand device 0;nand erase 0 40000;nb_update ${loadaddr} ${filesize};save
170 upd=run load; run prog
172 Environment size: 653/131068 bytes
174 memstart = 0x40000000
176 flashstart = 0x00000000
177 flashsize = 0x00000000
178 flashoffset = 0x00000000
179 sramstart = 0x80000000
180 sramsize = 0x00010000
187 ethaddr = 00:e0:0c:bc:e5:60
188 eth1addr = 00:e0:0c:bc:e5:61
189 ip_addr = 192.168.1.2
190 baudrate = 115200 bps
193 base - print or set address offset
194 bdinfo - print Board Info structure
195 boot - boot default, i.e., run 'bootcmd'
196 bootd - boot default, i.e., run 'bootcmd'
197 bootelf - Boot from an ELF image in memory
198 bootm - boot application image from memory
199 bootp - boot image via network using BOOTP/TFTP protocol
200 bootvx - Boot vxWorks from an ELF image
202 coninfo - print console devices and information
204 crc32 - checksum calculation
205 dcache - enable or disable data cache
206 dhcp - boot image via network using DHCP/TFTP protocol
207 echo - echo args to console
208 editenv - edit environment variable
209 env - environment handling commands
211 false - do nothing, unsuccessfully
212 go - start application at address 'addr'
213 help - print command description/usage
214 icache - enable or disable instruction cache
215 iminfo - print header information for application image
216 imxtract- extract a part of a multi-image
217 itest - return true/false on integer compare
218 loop - infinite loop on address range
220 mdio - MDIO utility commands
221 mii - MII utility commands
222 mm - memory modify (auto-incrementing address)
223 mtest - simple RAM read/write test
224 mw - memory write (fill)
225 nand - NAND sub-system
226 nb_update- Nand boot update program
227 nboot - boot from NAND device
228 nfs - boot image via network using NFS protocol
229 nm - memory modify (constant address)
230 ping - send ICMP ECHO_REQUEST to network host
231 printenv- print environment variables
232 reginfo - print register information
233 reset - Perform RESET of the CPU
234 run - run commands in an environment variable
235 saveenv - save environment variables to persistent storage
236 setenv - set environment variables
237 sf - SPI flash sub-system
238 showvar - print local hushshell variables
239 sleep - delay execution for some time
240 source - run script from memory
241 sspi - SPI utility command
242 test - minimal test like /bin/sh
243 tftpboot- boot image via network using TFTP protocol
244 true - do nothing, successfully
245 version - print monitor, compiler and linker version