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
66 CONFIG_M54418TWR -- define for M54418TWR board
68 CONFIG_MCFUART -- define to use common CF Uart driver
69 CONFIG_SYS_UART_PORT -- define UART port number, start with 0, 1 and 2
70 CONFIG_BAUDRATE -- define UART baudrate
72 CONFIG_MCFFEC -- define to use common CF FEC driver
73 CONFIG_MII -- enable to use MII driver
74 CONFIG_SYS_DISCOVER_PHY -- enable PHY discovery
75 CONFIG_SYS_RX_ETH_BUFFER -- Set FEC Receive buffer
76 CONFIG_SYS_FAULT_ECHO_LINK_DOWN --
77 CONFIG_SYS_FEC0_PINMUX -- Set FEC0 Pin configuration
78 CONFIG_SYS_FEC1_PINMUX -- Set FEC1 Pin configuration
79 CONFIG_SYS_FEC0_MIIBASE -- Set FEC0 MII base register
80 CONFIG_SYS_FEC1_MIIBASE -- Set FEC0 MII base register
81 MCFFEC_TOUT_LOOP -- set FEC timeout loop
82 CONFIG_HAS_ETH1 -- define to enable second FEC in u-boot
84 CONFIG_MCFTMR -- define to use DMA timer
86 CONFIG_SYS_IMMR -- define for MBAR offset
88 CONFIG_EXTRA_CLOCK -- Enable extra clock such as vco, flexbus, pci, etc
90 CONFIG_SYS_MBAR -- define MBAR offset
92 CONFIG_MONITOR_IS_IN_RAM -- Not support
94 CONFIG_SYS_INIT_RAM_ADDR -- defines the base address of the MCF54455 internal SRAM
96 CONFIG_SYS_CSn_BASE -- defines the Chip Select Base register
97 CONFIG_SYS_CSn_MASK -- defines the Chip Select Mask register
98 CONFIG_SYS_CSn_CTRL -- defines the Chip Select Control register
100 CONFIG_SYS_SDRAM_BASE -- defines the DRAM Base
102 2. MEMORY MAP UNDER U-BOOT AND LINUX KERNEL
103 ===========================================
104 2.1. System memory map:
105 MRAM: 0x00000000-0x0003FFFF (256KB)
106 DDR: 0x40000000-0x47FFFFFF (128MB)
107 SRAM: 0x80000000-0x8000FFFF (64KB)
108 IP: 0xE0000000-0xFFFFFFFF (512MB)
112 3.1 To create U-Boot the gcc-4.x compiler set (ColdFire ELF version)
113 from codesourcery.com was used. Download it from:
114 http://www.codesourcery.com/gnu_toolchains/coldfire/download.html
117 export CROSS_COMPILE=cross-compile-prefix
120 make M54418TWR_config, or - default to spi serial flash boot, 50Mhz input clock
121 make M54418TWR_nand_mii_config, or - default to nand flash boot, mii mode, 25Mhz input clock
122 make M54418TWR_nand_rmii_config, or - default to nand flash boot, rmii mode, 50Mhz input clock
123 make M54418TWR_nand_rmii_lowfreq_config, or - default to nand flash boot, rmii mode, 50Mhz input clock
124 make M54418TWR_serial_mii_config, or - default to spi serial flash boot, 25Mhz input clock
125 make M54418TWR_serial_rmii_config, or - default to spi serial flash boot, 50Mhz input clock
130 4.1 M54418TWR Development board
131 Boot from NAND flash (NOTE: May not show exactly the same)
133 U-Boot 2012.10-00209-g12ae1d8-dirty (Oct 18 2012 - 15:54:54)
135 CPU: Freescale MCF54418 (Mask:a3 Version:1)
136 CPU CLK 250 MHz BUS CLK 125 MHz FLB CLK 125 MHz
137 INP CLK 50 MHz VCO CLK 500 MHz
138 Board: Freescale MCF54418 Tower System
148 bootargs=root=/dev/mtdblock2 rw rootfstype=jffs2 mtdparts=NAND:1M(u-boot)ro,7M(k
149 ernel)ro,-(jffs2) console=ttyS0,115200
151 eth1addr=00:e0:0c:bc:e5:61
153 ethaddr=00:e0:0c:bc:e5:60
156 gatewayip=192.168.1.1
160 load=tftp ${loadaddr} ${u-boot};
164 netmask=255.255.255.0
165 prog=nand device 0;nand erase 0 40000;nb_update ${loadaddr} ${filesize};save
171 upd=run load; run prog
173 Environment size: 653/131068 bytes
175 memstart = 0x40000000
177 flashstart = 0x00000000
178 flashsize = 0x00000000
179 flashoffset = 0x00000000
180 sramstart = 0x80000000
181 sramsize = 0x00010000
188 ethaddr = 00:e0:0c:bc:e5:60
189 eth1addr = 00:e0:0c:bc:e5:61
190 ip_addr = 192.168.1.2
191 baudrate = 115200 bps
194 base - print or set address offset
195 bdinfo - print Board Info structure
196 boot - boot default, i.e., run 'bootcmd'
197 bootd - boot default, i.e., run 'bootcmd'
198 bootelf - Boot from an ELF image in memory
199 bootm - boot application image from memory
200 bootp - boot image via network using BOOTP/TFTP protocol
201 bootvx - Boot vxWorks from an ELF image
203 coninfo - print console devices and information
205 crc32 - checksum calculation
206 dcache - enable or disable data cache
207 dhcp - boot image via network using DHCP/TFTP protocol
208 echo - echo args to console
209 editenv - edit environment variable
210 env - environment handling commands
212 false - do nothing, unsuccessfully
213 go - start application at address 'addr'
214 help - print command description/usage
215 icache - enable or disable instruction cache
216 iminfo - print header information for application image
217 imxtract- extract a part of a multi-image
218 itest - return true/false on integer compare
219 loop - infinite loop on address range
221 mdio - MDIO utility commands
222 mii - MII utility commands
223 mm - memory modify (auto-incrementing address)
224 mtest - simple RAM read/write test
225 mw - memory write (fill)
226 nand - NAND sub-system
227 nb_update- Nand boot update program
228 nboot - boot from NAND device
229 nfs - boot image via network using NFS protocol
230 nm - memory modify (constant address)
231 ping - send ICMP ECHO_REQUEST to network host
232 printenv- print environment variables
233 reginfo - print register information
234 reset - Perform RESET of the CPU
235 run - run commands in an environment variable
236 saveenv - save environment variables to persistent storage
237 setenv - set environment variables
238 sf - SPI flash sub-system
239 showvar - print local hushshell variables
240 sleep - delay execution for some time
241 source - run script from memory
242 sspi - SPI utility command
243 test - minimal test like /bin/sh
244 tftpboot- boot image via network using TFTP protocol
245 true - do nothing, successfully
246 version - print monitor, compiler and linker version