Boot Options, Booting from a Network | Emerson MVME2500 guide

Boot System

U-Boot aborts the boot sequence and enters into a command line interface mode.

Enter the command setenv bootdelay -1; saveenv to disable the U-Boot auto-boot feature and let the U-Boot directly enter the command line interface after the next reboot/power up.

6.3Boot Options

6.3.1Booting from a Network

In this mode, U-Boot downloads and boots the Linux kernel from an external TFTP server and mounts a root file system located on a network server.

1.Make sure that the kernel, dtb, and ramdisk are accessible to the board from the TFTP server.

2.Configure U-Boot environment variables:

setenv ipaddr <IP address of MVME2500> setenv serverip <IP address of TFTP server> setenv gatewayip <gateway IP>

setenv netmask <netmask>

setenv bootargs 'root=/dev/ram rw console=ttyS0,9600n8 ramdisk_size=700000 cache-sram-size=0x10000'

saveenv

3.Transfer the files through the TFTP from the server to the local memory. tftp 1000000 <kernel_image>

tftp 2000000 <ramdisk> tftp C00000 <kernel dtb>

4.Boot the Linux from the memory. bootm 1000000 2000000 c00000

104	MVME2500 Installation and Use (6806800L01H)

Image 104

Emerson MVME2500 manual Boot Options, Booting from a Network, Boot System

Contents

MVME2500 Contact Address Contents Contents Contents Memory Maps and Registers Emerson Network Power Embedded Computing Documents Safety Notes Sicherheitshinweise Index List of Tables List of Tables List of Figures Figure A-1 List of Figures Abbreviations Overview of ContentsAbout this Manual About this Manual Conventions USBVita VME About this Manual About this Manual Summary of Changes Documentation, on Overview Key Features of the MVME2500Introduction  8 KB VPD Eeprom IntroductionKB Mram Standard Compliances Board Standard Compliances Mechanical Data Ordering InformationMechanical Data Available Board Variants Available Board Accessories VME-HDMNTKITVME-64GBSSDKIT SERIAL-MINI-D Product Identification Serial Number Location Hardware Preparation and Installation Requirements Hardware Preparation and InstallationUnpacking and Inspecting the Board Grms Environmental RequirementsEnvironmental Requirements Power Requirements Power Requirements Configuring the Board Equipment Requirements Installing Accessories Rear Transition Module Installation Procedure 2 PMC/XMC Support Installing and Removing the Board Hardware Preparation and Installation Completing the Installation Controls, LEDs, and Connectors Board Layout Controls, LEDs, and Connectors Front Panel Front Panel LEDs Reset SwitchLEDs User FailGENET1 TSEC1 Speed Onboard LEDs Status ConnectorsOnboard LEDs 1.1 RJ45 with Integrated Magnetics J1 Front Panel ConnectorsFront Panel Tri-Speed Ethernet Connector J1 Front Panel Serial Port J4 Front Panel Serial Port J4 Controls, LEDs, and Connectors USB Connector J5 VMEBus P1 ConnectorUSB Connector J5 VMEbus P1 Connector DS0 BR1 Lword GA2 Write BR2 GND BR3GA3 Dtack GA4 Controls, LEDs, and Connectors VMEBus P2 Connector VMEbus P2 Connector Flash Programming Header P7 Onboard ConnectorsFlash Program Connector P7 Sata Connector J3 Custom Sata Connector J3GND Sata Power Enable Sata TX + Sata Detect Sata RX PMC Connectors 10 PMC J11 Connector 11 PMC J12 Connector 12 PMC J13 Connector GND CBE7 CBE6 CBE5 CBE4 PAR64 13 PMC J14 Connector Jtag Connector P6 14 Jtag Connector P6 GPO0 Scan 2 TMS Scan 2 TDO Scan 2 TCK GND Scan 2 TDI Scan 3 TMS Scan 3 TCK1 Scan 3 TDOScan 3 TCK GND Scan 4 TDI Scan 4 TCK Scan 4 Trst Scan 5 TMS Scan 5 TDO Controls, LEDs, and Connectors COP Connector P6 SD Connector J216 SD Connector J2 15 COP Header P10 XMC Connector XJ2 17 XMC Connector XJ2 Pinout Miscellaneous P2020 Debug Connectors 18 P20x0 Debug Header Trigin MSRCID4 GND SwitchesGeographical Address Switch S1 VME Scon SEL2 GAP4GAP3 GAP2 SMT Configuration Switch S2 Masterwpdisa BledGbemuxsel Plane Chipset Block DiagramFunctional Description Functional Description 1 e500 Processor CoreIntegrated Memory Controller PCI Express Interface Local Bus Controller LBCSecure Digital Hub Controller Sdhc 6 I2C Interface Duart DMA ControllerEnhanced Three-Speed Ethernet Controller eTSEC General Purpose I/O Gpio Timers 14 P20x0 Hardware Configuration PinsSystem Memory Common On-Chip Processor COP Internal Timer Watchdog TimerFpga Tick Timer Ethernet Interfaces SPI Flash Programming SPI Bus InterfaceSPI Flash Memory Firmware Redundancy SPI Device Multiplexing Logic Crisis Recovery Front Uart Control Rear Uart Control PMC/XMC Sites XMC Add-on Card Sata InterfacePMC Add-on Card VME Support 12 USB13 I2C Devices 11.1 Tsi148 VME Controller Reset/Control Fpga Power ManagementOnboard Voltage Supply Requirement Voltage Supply Requirement Power Up Sequencing Requirements Reset Structure Clock Structure Real-Time Clock Battery Reset SequenceThermal Management Thermal Interrupt Threshold Post Code Indicator Post Code Indicator on the LEDDebugging Support Jtag Chain and Board Transition Module Features Rear Transition Module RTMCustom Debugging SBC Functional Description Physical Address Map Memory Maps and RegistersMemory Map Flash Memory Map Linux Devices Memory MapMemory Maps and Registers Flash Memory Map Linux Devices Memory Map Programmable Logic Device PLD Registers PLD Revision RegisterPLD Year Register PLD Revision Register PLD Sequence Register PLD Month RegisterPLD Day Register PLD Power Good Monitor Register PLD Power Good Monitor RegisterWrgd RGD Pwrg Oper Reset Rsvd Pwrv PWRV1P2SWPWRG PLD LED Control Register10 PLD LED Control Register PMC1PN PLD PCI/PMC/XMC Monitor Register11 PLD PCI/PMC/XMC Monitor Register PLD U-Boot and TSI Monitor Register PLD Boot Bank Register12 PLD U-Boot and TSI Monitor Register 13 PLD Boot Bank Register Bootb Boots Locka Wpdi WPN Ugen Flash Sabled Oper Reset PLD Write Protect and I2C Debug Register14 PLD Write Protect and I2C Debug Register Rsvd Master Flash I2CDEB Serial I2CDEBUGEN=0 16 PLD Test Register PLD Test Register15 PLD Test Register 17 PLD GPIO2 Interrupt Register Rsvd NMI TICK0INT TICK1INT TICK2INT Oper ResetPLD GPIO2 Interrupt Register PLD Shutdown and Reset Control and Reset Reason Register 18 PLD Shutdown and Reset Control and Reset Reason RegisterCpureset Wdtime Lrsto Dnmask OUT Oper Reset PLD Watchdog Timer Refresh Register 19 PLD Watchdog Timer Refresh Register PLD Watchdog Timer Count Register 21 PLD Watchdog Timer Count RegisterPLD Watchdog Control Register 20 PLD Watchdog Control Register 22 Prescaler Register External Timer RegistersPrescaler Register COC ENC Oper Reset Control Registers23 Control Registers Ints Cint 25 Compare Low Word Registers Compare High and Low Word Registers24 Compare High Word Registers 27 Counter Low Word Registers Counter High and Low Word Registers26 Counter High Word Registers 102 Boot System Accessing U-Boot Boot System Boot OptionsBooting from a Network Booting from an Optional Sata Drive Booting from a USB Drive Booting from an SD Card Booting VxWorks Through the Network Using the Persistent Memory Feature Analyzing Kernel Log Files after a Kernel Panic MVME2500 Specific U-Boot Commands MVME2500 Specific U-Boot Commands Boot System Updating U-Boot Sf probe 112 Programming Model Reset ConfigurationPOR Configuration Settings Programming Model Config Config Pins Selection Remarks ETSEC2 Sgmii LGPL1 ETSEC3 Sgmmi TSEC1588ALARMEcmdc ETSEC1 TSEC1TXD0 Config Config Pins Selection Remarks Boot ROM TSEC1TXERLWE1/LBS1 TSEC2TXER Interrupt Controller MVME2500 Interrupt List I2C Bus Device Addressing Ethernet PHY AddressI2C Bus Device Addressing PHY Types and MII Management Bus Address Other Software Considerations MramQuad Uart TSEC3 LBC Timing Parameters LBC Timing Parameters Clock Distribution Clock Distribution System Clock System Clock Real Time Clock Input Local Bus Controller Clock Divisor 124 Replacing the Battery Replacing the Battery Replacing the Battery Replacement Procedure 128 Emerson Network Power Embedded Computing Documents Related Documentation Related Specifications Table B-3 Related SpecificationsManufacturers’ Documents Related Documentation PCI-SIG SATA-IO 132 Safety Notes EMC Results pending testing Operation InstallationSafety Notes Cabling and Connectors Battery Sicherheitshinweise Betrieb Sicherheitshinweise 139 Kabel und Stecker Batterie Umweltschutz 142 Index Index Page HOW to Reach Literature and Technical Support