| 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_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 |
