IPL+UBI: Flexible and Reliable with Linux as the Bootloader

Size: px
Start display at page:

Download "IPL+UBI: Flexible and Reliable with Linux as the Bootloader"

Transcription

1 IPL+UBI: Flexible and Reliable with Linux as the Bootloader John Ogness Linutronix GmbH 1 / 34

2 Embedded Board Trends MMC / SD CompactFlash SATA USB (OTG) Firewire RFID Ethernet (wireless) TFT LCD Touchscreen Audio Sensors temperature brightness proximity accelerometer 2 / 34

3 Embedded Board Trends Linux MMC / SD Drivers TFT LCD CompactFlash Touchscreen SATA Audio USB Necessary (OTG) Sensors Firewire temperature Linux Drivers RFID Ethernet (wireless) brightness proximity accelerometer 3 / 34

4 Embedded Board Trends MMC / SD TFT LCD... but what about CompactFlash Touchscreen SATA Audio the bootloader? USB (OTG) Sensors Firewire RFID Ethernet (wireless) temperature brightness proximity accelerometer 4 / 34

5 Bootloader Responsiblities init low-level hardware (RAM, MTD) load/run kernel from MTD 5 / 34

6 Bootloader Responsiblities init low-level hardware (RAM, MTD) load/run kernel from MTD failsafe boot environment 6 / 34

7 Bootloader Responsiblities init low-level hardware (RAM, MTD) load/run kernel from MTD failsafe boot environment show a splash screen play startup music BIOS-like application (user interaction) load/run kernel from external device (USB / MMC / SATA / ethernet) 7 / 34

8 Bootloader Responsiblities Do we really want to implement all these drivers again for the bootloader? init low-level hardware (RAM, MTD) load/run kernel from MTD failsafe boot environment show a splash screen play startup music BIOS-like application (user interaction) load/run kernel from external device (USB / MMC / SATA / ethernet) 8 / 34

9 Yes! Yes! Yes! NO! Original IPL+UBI: icons Flexible (Restroom_symbols.svg) and Reliable with Linux as copyright the Bootloader Amy Young under the CELF Creative Embedded Commons Linux Conference Attribution-ShareAlike Europe License. 9 / 34

10 Drivers in Bootloaders Advantage early access to hardware 10 / 34

11 Drivers in Bootloaders Advantage early access to hardware Disadvantages less availability less tested less maintained often incomplete less support for out-of-tree drivers 11 / 34

12 What if we use Linux as the bootloader? 12 / 34

13 Linux as Bootloader use a minimal kernel (to reduce startup times) load drivers on demand as needed BIOS-like application runs in a Linux userspace environment load final kernel from wherever use kexec to run final kernel 13 / 34

14 ... but how does the Linux bootloader get loaded? 14 / 34

15 IPL (Initial Program Load) also known as X-Loader or Stage One Bootloader less than 16KB in size performs minimal tasks required to start the bootloader 15 / 34

16 Bootloader Responsiblities init low-level hardware (RAM, MTD) load/run kernel from MTD failsafe boot environment show a splash screen play startup music BIOS-like application (user interaction) load/run kernel from external device (USB / MMC / SATA / ethernet) 16 / 34

17 Bootloader IPL Responsiblities init low-level hardware (RAM, MTD) load/run kernel from MTD failsafe boot environment show a splash screen play startup music BIOS-like application (user interaction) load/run kernel from external device (USB / MMC / SATA / ethernet) 17 / 34

18 Bootloader Responsiblities Linux Bootloader init low-level hardware (RAM, MTD) load/run kernel from MTD failsafe boot environment show a splash screen play startup music BIOS-like application (user interaction) load/run kernel from external device (USB / MMC / SATA / ethernet) 18 / 34

19 Boot Procedure 1. boot ROM loads and runs IPL 2. IPL loads its configuration from MTD 3. IPL loads and runs minimal kernel from MTD 4. BIOS-like application runs (initramfs) 5. load and run final kernel from wherever 19 / 34

20 Boot Procedure 1. boot ROM loads and runs IPL 2. IPL loads its configuration from MTD 3. IPL loads and runs minimal kernel from MTD 4. BIOS-like application runs (initramfs) 5. load and run final kernel from wherever 20 / 34

21 NAND (MTD) 21 / 34

22 NAND (MTD) data organized in addressable pages 512, 2048, or 4096 bytes per page (+ spare bytes for ECC) pages organized in erase blocks 32, 64, or 128 pages per erase block individual pages may be programmed to reprogram a page, the entire erase block must first be erased limited program-erase cycles 22 / 34

23 NAND (effective use) wear-leveling wear down the entire MTD evenly bad block management NAND erase blocks will go bad error correction code bit-flips when reading NAND will occur data scrubbing keep data on healthy erase blocks 23 / 34

24 UBI (Unsorted Block Images) volume management system for raw flash devices maps logical erase blocks to physical erase blocks transparently implements effective MTD usage additional data integrity features erase block checksums erase block sequence numbers 24 / 34

25 UBI (a few nice features) supports multiple volumes within a single MTD partition supports static volumes useful for storing data blobs (e.g. kernel) supports dynamic volumes used for filesystems (e.g. UBIFS) individual volumes may be updated... with effective MTD usage 25 / 34

26 UBI (how it works) UBI management attaches to a specified MTD partition UBI scans the MTD partition LEB/PEB mapping created in RAM erase block checksums and sequence numbers used to identify valid data global sequence number set to the highest valid erase block sequence number found (in RAM) 26 / 34

27 UBI (in Linux) device nodes are created for each UBI volume static volumes can be read dynamic volumes can be mounted userspace UBI tools available ubiformat ubiattach / ubidetach ubinfo ubinize / ubimkvol / ubirmvol ubiupdatevol 27 / 34

28 Boot Procedure 1. boot ROM loads and runs IPL 2. IPL loads its configuration from MTD 3. IPL loads and runs minimal kernel from MTD 4. BIOS-like application runs (initramfs) 5. load and run final kernel from wherever 28 / 34

29 Boot Procedure 1. boot ROM loads and runs IPL 2. IPL loads its configuration from an UBI static volume (MTD) 3. IPL loads and runs minimal kernel from an UBI static volume (MTD) 4. BIOS-like application runs (initramfs) 5. load and run final kernel from wherever 29 / 34

30 IPL+UBI (example) 1st MTD partition = 4 erase blocks each has a copy of the IPL 2nd MTD partition = 10 MB, UBI managed with (at least?) 4 static UBI volumes IPL config minimal kernel production kernel failsafe kernel 3rd MTD partition = the rest most likely also UBI managed ;-) 30 / 34

31 IPL+UBI (example cont.) OMAP3530 (ARM Cortex 720 MHz) 64 MB NAND (0.5 KB pages, 32 PPB) IPL size = 12 KB includes simple UBI library IPL config size = 0.1 KB minimal kernel size = 940 KB compressed using LZMA includes drivers for NAND, UBI, display includes initramfs with busybox and kexec 31 / 34

32 IPL+UBI (example cont.) Startup time until Tux visible: UBI scan (2nd MTD partition) = 180 ms load IPL config = 2 ms load minimal kernel = 700 ms kernel startup (until Tux) 3000 ms decompress kernel = 1000 ms boot until Tux visible 2000 ms Total time to Tux 4 seconds 32 / 34

33 Total Time to Tux IPL+UBI 882 ms Linux Startup ~3000 ms 33 / 34

34 Questions / Comments RCPT TO:<john.ogness@linutronix.de> Other Presentations On This Topic 09:45 - The Right Approach to Minimal Boot Times 11:00 - Barebox: Booting Linux Fast and Fancy 15:20 - Flash Filesystem Benchmarks 16:10 - YAFFS Updates 34 / 34

Flash filesystem benchmarks

Flash filesystem benchmarks Embedded Linux Conference Europe 21 Flash filesystem benchmarks Michael Opdenacker Free Electrons Copyright 21, Free Electrons. 1 Free FreeElectrons Electrons Free embedded Linux and kernel materials http://free

More information

Booting Linux Fast & Fancy. Embedded Linux Conference Europe Cambridge, Robert Schwebel

Booting Linux Fast & Fancy. Embedded Linux Conference Europe Cambridge, Robert Schwebel Booting Linux Fast & Fancy Embedded Linux Conference Europe Cambridge, 2010-10-28 Robert Schwebel Slide 1 - http://www.pengutronix.de - 01/11/2010 Motivation: Booting Linux

More information

NAND/MTD support under Linux

NAND/MTD support under Linux 12 July 2012 NAND Features 1 Flash is everywhere NAND Features non-volatile computer storage chip that can be electrically erased and reprogrammed usb flash drives memory cards solid-state drives Flash

More information

Current Challenges in UBIFS

Current Challenges in UBIFS Richard Weinberger sigma star gmbh /me Richard Weinberger Co-founder of sigma star gmbh Linux kernel developer and maintainer Strong focus on Linux kernel, lowlevel components, virtualization, security

More information

Setup Macronix NAND Flash on Freescale i.mx28 EVK

Setup Macronix NAND Flash on Freescale i.mx28 EVK Setup Macronix NAND Flash on Freescale i.mx28 EVK The procedures defined in this document are verified by Linux kernel 2.6.31 and 2.6.35.3 version. You may need to setup hardware environment first. Then

More information

Embedded Linux system development training 5-day session

Embedded Linux system development training 5-day session Embedded Linux system development training 5-day session Title Embedded Linux system development training Overview Bootloaders Kernel (cross) compiling and booting Block and flash filesystems C library

More information

Track One Building a connected home automation device with the Digi ConnectCore Wi-i.MX51 using LinuxLink

Track One Building a connected home automation device with the Digi ConnectCore Wi-i.MX51 using LinuxLink Track One Building a connected home automation device with the Digi ConnectCore Wi-i.MX51 using LinuxLink Session 4 How to optimize, test and integrate the solution for quick deployment Audio streaming

More information

ARM Powered SoCs OpenEmbedded: a framework for toolcha. generation and rootfs management

ARM Powered SoCs OpenEmbedded: a framework for toolcha. generation and rootfs management ARM Powered SoCs OpenEmbedded: a framework for toolchain generation and rootfs management jacopo @ Admstaff Reloaded 12-2010 An overview on commercial ARM-Powered SOCs Many low-cost ARM powered devices

More information

Embest SOC8200 Single Board Computer

Embest SOC8200 Single Board Computer Embest SOC8200 Single Board Computer TI's AM3517 ARM Cortex A8 Microprocessors 600MHz ARM Cortex-A8 Core NEON SIMD Coprocessor POWERVR SGX Graphics Accelerator (AM3517 only) 16KB I-Cache, 16KB D-Cache,

More information

3.3 WinCE System Installation

3.3 WinCE System Installation 3.3 WinCE System Installation FriendlyARM English User Manual 214 Note: This section assumes that you have in front of the method in accordance with the USB driver installed and the development board is

More information

Mobile phones Memory technologies MMC, emmc, SD & UFS

Mobile phones Memory technologies MMC, emmc, SD & UFS http://www.linux-mtd.infradead.org/ Mobile phones Memory technologies MMC, emmc, SD & UFS Good reads The Flash memory mobile forensic article must be read! http://www.informit.com/store/product.aspx?isbn=0132396556

More information

TQ2440 Development Platform Manual

TQ2440 Development Platform Manual TQ2440 Development Platform Manual 0 Directory Directory... 1 Chapter 1 Introduction... 7 11Appearance of TQ2440 development platform... 7 12Hardware resource of TQ2440... 7 13Software introduction of

More information

D1Y - Embedded Linux with Yocto

D1Y - Embedded Linux with Yocto Training Embedded Linux with Yocto: Building embedded Linux platforms using Yocto - Operating Systems: Linux D1Y - Embedded Linux with Yocto Building embedded Linux platforms using Yocto Objectives Understanding

More information

MCAM335x Linux User's Guide

MCAM335x Linux User's Guide Pag. 1 of 17 MCAM335x Linux User's Guide Pag. 2 of 17 Contents MCAM335x Linux User's Guide... 1 About this Manual... 4 Installation... 4 Introduction... 4 Prerequisites... 4 Install LSP packages... 5 U

More information

Introduction to the TenByTen6410

Introduction to the TenByTen6410 Introduction to the TenByTen6410 Illustration shows a pre-production unit, appearance might be slightly different on final product. Introduction The TenByTen6410 is a high performance ARM11 single board

More information

How I survived to a SoC with a terrible Linux BSP

How I survived to a SoC with a terrible Linux BSP How I survived to a SoC with a terrible Linux BSP Working with jurassic vendor kernels, missing pieces and buggy code Luca Ceresoli luca@lucaceresoli.net http://lucaceresoli.net FOSDEM 2017 About me Open

More information

Boot time Optimization of Automotive Grade Linux. Shilu SL & Renjith G 14-Jul-2016

Boot time Optimization of Automotive Grade Linux. Shilu SL & Renjith G 14-Jul-2016 Boot time Optimization of Automotive Grade Linux Shilu SL & Renjith G 14-Jul-2016 1 Agenda Importance of Fast Boot in AGL Setting up of targets Boot time optimization techniques Explaining with a live

More information

D1S - Embedded Linux with Ac6 System Workbench

D1S - Embedded Linux with Ac6 System Workbench Formation Embedded Linux with Ac6 System Workbench: Implementing Linux on Embedded Systems - Systèmes d'exploitation: Linux D1S - Embedded Linux with Ac6 System Workbench Implementing Linux on Embedded

More information

MYD-IMX28X Development Board

MYD-IMX28X Development Board MYD-IMX28X Development Board MYC-IMX28X CPU Module as Controller Board Two 1.27mm pitch 80-pin SMT Male Connectors for Board-to-Board Connections 454MHz Freescale i.mx28 Series ARM926EJ-S Processors 128MB

More information

AT-501 Cortex-A5 System On Module Product Brief

AT-501 Cortex-A5 System On Module Product Brief AT-501 Cortex-A5 System On Module Product Brief 1. Scope The following document provides a brief description of the AT-501 System on Module (SOM) its features and ordering options. For more details please

More information

How I survived to a SoC with a terrible Linux BSP

How I survived to a SoC with a terrible Linux BSP How I survived to a SoC with a terrible Linux BSP Working with jurassic vendor kernels, missing pieces and buggy code Luca Ceresoli AIM Sportline luca@lucaceresoli.net http://lucaceresoli.net ELC-E 2017

More information

Anatomy of Linux flash file systems

Anatomy of Linux flash file systems Options and architectures Skill Level: Intermediate M. Tim Jones (mtj@mtjones.com) Consultant Engineer Emulex Corp. 20 May 2008 You've probably heard of Journaling Flash File System (JFFS) and Yet Another

More information

D1 - Embedded Linux. Building and installing an embedded and real-time Linux platform. Objectives. Course environment.

D1 - Embedded Linux. Building and installing an embedded and real-time Linux platform. Objectives. Course environment. Training Embedded Linux: Building and installing an embedded and real-time Linux platform - Operating Systems: Linux D1 - Embedded Linux Building and installing an embedded and real-time Linux platform

More information

EMBEDDED LINUX ON ARM9 Weekend Workshop

EMBEDDED LINUX ON ARM9 Weekend Workshop Here to take you beyond EMBEDDED LINUX ON ARM9 Weekend Workshop Embedded Linux on ARM9 Weekend workshop Objectives: Get you exposed with various trends in Embedded OS Leverage Opensource tools to build

More information

Contents. 1 Introduction Features Product Specifications Hardware Specification Software Specification...

Contents. 1 Introduction Features Product Specifications Hardware Specification Software Specification... SOM335x Specifications Contents 1 Introduction...2 2 Features... 3 3 Product Specifications...5 3.1 Hardware Specification... 6 3.2 Software Specification...8 3.3 Product Dimension... 10 4 Application

More information

MYD-IMX28X Development Board

MYD-IMX28X Development Board MYD-IMX28X Development Board MYC-IMX28X CPU Module as Controller Board Two 1.27mm pitch 80-pin SMT Connectors for Board-to-Board Connections 454MHz Freescale i.mx28 Series ARM926EJ-S Processors 128MB DDR2

More information

DevKit7000 Evaluation Kit

DevKit7000 Evaluation Kit DevKit7000 Evaluation Kit Samsung S5PV210 Processor based on 1GHz ARM Cortex-A8 core Onboard 512MByte DDR2 and 512MByte NAND Flash 4 UART, 4 USB Host, USB Device, Ethernet, Audio, TF, RTC,... Supports

More information

Embedded Linux Conference Europe Sascha Hauer

Embedded Linux Conference Europe Sascha Hauer Embedded Linux Conference Europe 2012 Sascha Hauer Slide 1 - Pengutronix - http://www.pengutronix.de - 08.11.2012 Agenda Tour through barebox Devicetree Multiplatform Bootloader

More information

Hands-on with the Sitara Linux SDK

Hands-on with the Sitara Linux SDK Hands-on with the Sitara Linux SDK This presentation provides a hands-on overview of the Sitara Linux SDK. It focuses on the software and tools found in the SDK and how to use these tools to develop for

More information

Compressed Swap for Embedded Linux. Alexander Belyakov, Intel Corp.

Compressed Swap for Embedded Linux. Alexander Belyakov, Intel Corp. Compressed Swap for Embedded Linux Alexander Belyakov, Intel Corp. Outline. 1. Motivation 2. Underlying media types 3. Related works 4. MTD compression layer driver place in kernel architecture swap-in/out

More information

S3C6410-TFAUbuntu Easy Guide

S3C6410-TFAUbuntu Easy Guide S3C6410-TFA Ubuntu TABLE OF CONTENTS S3C6410-TFAUbuntu simple manual...- 1 - S3C6410-TFAUbuntu simple manual......- 5-- 1.1 install and run Ubuntu......- 5-- 1.1.1 Ubuntu install to the development board

More information

User s Manual for the Boundary Devices Nitrogen R board

User s Manual for the Boundary Devices Nitrogen R board 1 User s Manual for the Boundary Devices Nitrogen R board July 6, 2010 2 1 Revision History Date Revision Description 2010-06-17 1.0 First (rough) draft 2010-06-25 1.1 Still rough. Additional details on

More information

The Right Approach to Minimal Boot Times

The Right Approach to Minimal Boot Times The Right Approach to Minimal Boot Times Andrew Murray Senior Software Engineer CELF Embedded Linux Conference Europe 2010 MPC Data Limited is a company registered in England and Wales with company number

More information

HC-3120 Linux-Ready Cortex-A8 Industrial 12 HMI Computing (Hardware) User Guide

HC-3120 Linux-Ready Cortex-A8 Industrial 12 HMI Computing (Hardware) User Guide HC-3120 Linux-Ready Cortex-A8 Industrial 12 HMI Computing (Hardware) User Guide Version: 1.0 2017 July Trademarks The Artila logo is a registered trademark of Artila Inc. All other trademarks or registered

More information

UEFI Secure Boot and DRI. Kalyan Kumar N

UEFI Secure Boot and DRI. Kalyan Kumar N UEFI Secure Boot and DRI Kalyan Kumar N Agenda Introduction RDK Boot Loader DRI (Disaster Recovery Image) RootFS Validation Build Environment Introduction Standardization of the RDK set-top box firmware

More information

MBC-SAM9G25 Core Board Overview

MBC-SAM9G25 Core Board Overview MBC-SAM9G25 Core Board Overview The ATMEL MBC-SAM9G25 ARM9 Board is an ARM embedded board produced by Embest, integrate the ATMEL ARM926EJ-S-based processor AT91SAM9G25, operating at 400MHz frequency,

More information

Achieve Fastest System Startup Sequences.

Achieve Fastest System Startup Sequences. Achieve Fastest System Startup Sequences. How to tune an Embedded System. Embedded Systems Design Conference ARM vs. x86 July 3, 2014 Kei Thomsen MicroSys Electronics GmbH Agenda Target: reduce startup

More information

SBC8140 Single Board Computer

SBC8140 Single Board Computer SBC8140 Single Board Computer TI DM3730 Processor based on 1GHz ARM Cortex-A8 core Flexible Design with a Tiny CPU Board mounted on Expansion Board Memory supporting 256MByte DDR SDRAM and 512MByte NAND

More information

EM210 Burn Linux Image Manual. Catalogue

EM210 Burn Linux Image Manual. Catalogue EM210 Burn Linux Image Manual Catalogue 1. Make the SD Card used to burn image... 2 2. Burn the uboot by SD card... 7 3. Set SD booting mode... 11 4. Use sdfuse to burn system by SD card... 12 5. Use fastboot

More information

EyeCheck Smart Cameras

EyeCheck Smart Cameras EyeCheck Smart Cameras 2 3 EyeCheck 9xx & 1xxx series Technical data Memory: DDR RAM 128 MB FLASH 128 MB Interfaces: Ethernet (LAN) RS422, RS232 (not EC900, EC910, EC1000, EC1010) EtherNet / IP PROFINET

More information

MYD-Y6ULX Development Board

MYD-Y6ULX Development Board MYD-Y6ULX Development Board MYC-Y6ULX CPU Module as Controller Board 528Hz NXP i.mx 6UL/6ULL ARM Cortex-A7 Processors 1.0mm pitch 140-pin Stamp Hole Expansion Interface for Board-to-Board Connections 256MB

More information

Mass-Storage Structure

Mass-Storage Structure Operating Systems (Fall/Winter 2018) Mass-Storage Structure Yajin Zhou (http://yajin.org) Zhejiang University Acknowledgement: some pages are based on the slides from Zhi Wang(fsu). Review On-disk structure

More information

MYD-SAMA5D3X Development Board

MYD-SAMA5D3X Development Board MYD-SAMA5D3X Development Board MYC-SAMA5D3X CPU Module as Controller Board DDR2 SO-DIMM 200-pin Signals Consistent with Atmel's Official Board 536MHz Atmel SAMA5D3 Series ARM Cortex-A5 Processors 512MB

More information

OMAP3530 has 256MB NAND flash in PoP (PoP: Package-On-Package implementation for Memory Stacking) configuration.

OMAP3530 has 256MB NAND flash in PoP (PoP: Package-On-Package implementation for Memory Stacking) configuration. 1 of 7 04/18/09 15:39 BeagleBoardNAND From elinux.org This page is about using (booting/running from) NAND (http://en.wikipedia.org/wiki/flash_memory#nand_flash) memory on BeagleBoard. Parts of this page

More information

DevKit8000 Evaluation Kit

DevKit8000 Evaluation Kit DevKit8000 Evaluation Kit TI OMAP3530 Processor based on 600MHz ARM Cortex-A8 core Memory supporting 256MByte DDR SDRAM and 256MByte NAND Flash UART, USB Host/OTG, Ethernet, Camera, Audio, SD, Keyboard,

More information

Chapter 10: Mass-Storage Systems

Chapter 10: Mass-Storage Systems Chapter 10: Mass-Storage Systems Silberschatz, Galvin and Gagne 2013 Chapter 10: Mass-Storage Systems Overview of Mass Storage Structure Disk Structure Disk Attachment Disk Scheduling Disk Management Swap-Space

More information

TEFS: A Flash File System for Use on Memory Constrained Devices

TEFS: A Flash File System for Use on Memory Constrained Devices 2016 IEEE Canadian Conference on Electrical and Computer Engineering (CCECE) TEFS: A Flash File for Use on Memory Constrained Devices Wade Penson wpenson@alumni.ubc.ca Scott Fazackerley scott.fazackerley@alumni.ubc.ca

More information

A-307. Mobile Data Terminal. Android OS Platform Datasheet

A-307. Mobile Data Terminal. Android OS Platform Datasheet A-307 Mobile Data Terminal Android OS Platform Datasheet Revision 1.2 March, 2014 A-307 Platform Overview A-307 Platform Overview The A-307 provides Original Equipment Manufacturers (OEMs) and Telematics

More information

M-606 Linux ARM9 Single Board Computer User Guide

M-606 Linux ARM9 Single Board Computer User Guide M-606 Linux ARM9 Single Board Computer User Guide Version 1.0 Copyright Artila Electronics Co., Ltd. All Rights Reserved. Table of Contents 1. Introduction... 1 1.1 Features... 1 1.2 Packing List... 1

More information

Group 15 Arian Caraballo, CpE Daniela Zicavo, CpE Felipe Bernal, CpE Isabel Virag, CpE

Group 15 Arian Caraballo, CpE Daniela Zicavo, CpE Felipe Bernal, CpE Isabel Virag, CpE Group 15 Arian Caraballo, CpE Daniela Zicavo, CpE Felipe Bernal, CpE Isabel Virag, CpE What is it? Smidge stands for Smart Fridge System. It will offer the user the ability to store their groceries inventory

More information

Running a Linux-Capable Open Source Soft SoC on the Avalanche Board with MicroSemi PolarFire FPGA

Running a Linux-Capable Open Source Soft SoC on the Avalanche Board with MicroSemi PolarFire FPGA Running a Linux-Capable Open Source Soft SoC on the Avalanche Board with MicroSemi PolarFire FPGA RISC-V Summit, Dec 3 2018 Karol Gugala, kgugala@antmicro.com Al Kariminou, al.kariminou@futureelectronics.com

More information

CTWP015: S.M.A.R.T. Features for Cactus Technologies Industrial-Grade Flash-Storage Products

CTWP015: S.M.A.R.T. Features for Cactus Technologies Industrial-Grade Flash-Storage Products CTWP015: S.M.A.R.T. Features for Cactus Technologies Industrial-Grade Flash-Storage Products Covered Products: 203, 303, 503 CF cards, 806/808 SD cards, 300 UFD and 900S SATA products 1 Introduction Self

More information

Petitboot - A kexec based bootloader. Geoff Levand - Linux Plumbers Conference 2012 August 29-31, San Diego, CA

Petitboot - A kexec based bootloader. Geoff Levand - Linux Plumbers Conference 2012 August 29-31, San Diego, CA Petitboot - A kexec based bootloader Geoff Levand - geoff@infredead.org Linux Plumbers Conference 2012 August 29-31, San Diego, CA Outline About Features Installation Methods History Design Demos The Future

More information

Familiar Linux for the ipaq H3975 (XScale Processor) CSC 714 Real Time Computing Systems Term Project

Familiar Linux for the ipaq H3975 (XScale Processor) CSC 714 Real Time Computing Systems Term Project Familiar Linux for the ipaq H3975 (XScale Processor) CSC 714 Real Time Computing Systems Term Project Adinarayanan Venkatachalam (avenkat2@unity.ncsu.edu) Srivatsa Venkata Chivukula (svchivuk@unity.ncsu.edu)

More information

ECE 471 Embedded Systems Lecture 12

ECE 471 Embedded Systems Lecture 12 ECE 471 Embedded Systems Lecture 12 Vince Weaver http://www.eece.maine.edu/~vweaver vincent.weaver@maine.edu 8 October 2015 Announcements Homework grades have been sent out, let me know if you did not

More information

ECE 471 Embedded Systems Lecture 16

ECE 471 Embedded Systems Lecture 16 ECE 471 Embedded Systems Lecture 16 Vince Weaver http://web.eece.maine.edu/~vweaver vincent.weaver@maine.edu 6 October 2017 Midterm will be graded Don t forget HW#5 Announcements MEMSYS wrapup. Academia,

More information

Linux FastBoot. Reducing Embedded Linux Boot Times. Embedded World Conference 2012

Linux FastBoot. Reducing Embedded Linux Boot Times. Embedded World Conference 2012 Linux FastBoot Reducing Embedded Linux Boot Times Embedded World Conference 2012 Michael Röder Future Electronics Deutschland GmbH Detlev Zundel DENX Software Engineering GmbH Agenda Optimization Basics

More information

OP-TEE Using TrustZone to Protect Our Own Secrets

OP-TEE Using TrustZone to Protect Our Own Secrets OP-TEE Using TrustZone to Protect Our Own Secrets ROM-Code Bootloader Kernel Root File System ELC Europe 2017, 23.10.2016 Marc Kleine-Budde Slide 1 - http://www.pengutronix.de - 2017-10-23

More information

YAFFS A NAND flash filesystem

YAFFS A NAND flash filesystem YAFFS A NAND flash filesystem Wookey wookey@wookware.org Aleph One Ltd Balloonboard.org Toby Churchill Ltd Embedded Linux Conference - Europe Linz 1 Project Genesis 2 Flash hardware 3 YAFFS fundamentals

More information

An Introduction to SPI-NOR Subsystem. By Vignesh R Texas Instruments India

An Introduction to SPI-NOR Subsystem. By Vignesh R Texas Instruments India An Introduction to SPI-NOR Subsystem By Vignesh R Texas Instruments India vigneshr@ti.com About me Software Engineer at Texas Instruments India Part of Linux team that works on supporting various TI SoCs

More information

Installing Linux (Chapter 8) Note packet # 4. CSN 115 Operating Systems Ken Mead Genesee Community College. Objectives

Installing Linux (Chapter 8) Note packet # 4. CSN 115 Operating Systems Ken Mead Genesee Community College. Objectives Installing Linux (Chapter 8) Note packet # 4 CSN 115 Operating Systems Ken Mead Genesee Community College Objectives Learn about the hardware components of your computer system Configure hard disk space

More information

Embedded Linux Primer, Second Edition

Embedded Linux Primer, Second Edition Toronto Montreal Boston Paris Embedded Linux Primer, Second Edition A Practical, Real-World Approach Christopher Hallinan PRENTICE HALL Prentice Hall Professional Technical Reference Upper Saddle River,

More information

RakunLS1, Qseven SBC module with LS1021A

RakunLS1, Qseven SBC module with LS1021A RakunLS1, Qseven SBC module with LS1021A Software user manual $HeadURL: https://svn.borea.si/svn/docs/rakun/docs/rakunls1_sw_um.fodt $ $Rev: 932 $ $Date: 2015-10-15 16:02:53 +0200 (čet, 15 okt 2015) $

More information

Update on boot time reduction techniques

Update on boot time reduction techniques ELCE 2009 Update on boot time reduction techniques Michael Opdenacker Free Electrons 1 Linux kernel Linux device drivers Board support code Mainstreaming kernel code Kernel debugging Embedded Linux Training

More information

Introduction p. 1 Why Linux? p. 2 Embedded Linux Today p. 3 Open Source and the GPL p. 3 Free Versus Freedom p. 4 Standards and Relevant Bodies p.

Introduction p. 1 Why Linux? p. 2 Embedded Linux Today p. 3 Open Source and the GPL p. 3 Free Versus Freedom p. 4 Standards and Relevant Bodies p. Foreword p. xix Preface p. xxi Acknowledgments p. xxvii About the Author p. xxix Introduction p. 1 Why Linux? p. 2 Embedded Linux Today p. 3 Open Source and the GPL p. 3 Free Versus Freedom p. 4 Standards

More information

IJREAT International Journal of Research in Engineering & Advanced Technology, Volume 1, Issue 5, Oct-Nov, 2013 ISSN:

IJREAT International Journal of Research in Engineering & Advanced Technology, Volume 1, Issue 5, Oct-Nov, 2013 ISSN: Friendly ARM MINI2440 & Dalvik Virtual Machine with Android Sangamesh Gama 1 and Manjula C 2 1 Assistant Professor, Department of Computer Science and Engineering, BKIT Bhalki, India 2 Associate Software

More information

Contents. Acknowledgments... xi. Foreword 1... xiii Pierre FICHEUX. Foreword 2... xv Maryline CHETTO. Part 1. Introduction... 1

Contents. Acknowledgments... xi. Foreword 1... xiii Pierre FICHEUX. Foreword 2... xv Maryline CHETTO. Part 1. Introduction... 1 Contents Acknowledgments... xi Foreword 1... xiii Pierre FICHEUX Foreword 2... xv Maryline CHETTO Part 1. Introduction... 1 Chapter 1. General Introduction... 3 1.1. The outburst of digital data... 3 1.2.

More information

Release Notes for QNX Neutrino BSP for Renesas SH7780 EDOSK 1.0.0#

Release Notes for QNX Neutrino BSP for Renesas SH7780 EDOSK 1.0.0# Release Notes for QNX Neutrino 6.4.0 BSP for Renesas SH7780 EDOSK 1.0.0# System requirements# Target system# QNX Neutrino RTOS 6.4.0 Board version: renesas sh7780 edosk board 128M AMD / SPANSION MirrorBit

More information

Chapter 10: Mass-Storage Systems. Operating System Concepts 9 th Edition

Chapter 10: Mass-Storage Systems. Operating System Concepts 9 th Edition Chapter 10: Mass-Storage Systems Silberschatz, Galvin and Gagne 2013 Chapter 10: Mass-Storage Systems Overview of Mass Storage Structure Disk Structure Disk Attachment Disk Scheduling Disk Management Swap-Space

More information

Release Notes of the QNX BSP for Centrality Atlas II EVB Trunk#

Release Notes of the QNX BSP for Centrality Atlas II EVB Trunk# Release Notes of the QNX 6.4.0 BSP for Centrality Atlas II EVB Trunk# System requirements# Target system# Board version: Centrality Atlas II motherboard version 2.1 CPU board version 2.12 (with 64MB of

More information

ECE 471 Embedded Systems Lecture 16

ECE 471 Embedded Systems Lecture 16 ECE 471 Embedded Systems Lecture 16 Vince Weaver http://web.eece.maine.edu/~vweaver vincent.weaver@maine.edu 15 October 2018 Announcements Midterm is graded Don t forget HW#5 No class Wednesday, Career

More information

Flash File Systems Overview

Flash File Systems Overview Table of contents 1.0 Overview 3 1.1 Flash architecture 3 1.1.1 Partitions 3 1.1.2 Blocks 3 1.2 Programming data 3 1.3 Data integrity 4 2.0 Flash file system functions 4 2.1 Wear leveling 4 2.2 Reclaim

More information

MYD-JA5D2X Development Board

MYD-JA5D2X Development Board MYD-JA5D2X Development Board MYC-JA5D2X CPU Module as Controller Board 500MHz Atmel SAMA5D26/27 ARM Cortex-A5 Processor 256MB DDR3 SDRAM, 256MB Nand Flash, 4MB Data FLASH, 64KB EEPROM Serial ports, USB,

More information

U-Boot Falcon Mode. Minimizing boot times using U-Boot "Falcon" mode. Stefano Babic / Wolfgang Denk. July 2012

U-Boot Falcon Mode. Minimizing boot times using U-Boot Falcon mode. Stefano Babic / Wolfgang Denk. July 2012 U-Boot Falcon Mode Minimizing boot times using U-Boot "Falcon" mode Stefano Babic / Wolfgang Denk July 2012 Overview Requirements for Boot Loaders Frequently Asked For Optimizations: Boot Time Hardware

More information

EMAC SoM Presentation

EMAC SoM Presentation EMAC SoM Presentation www.emacinc.com www.emacinc emacinc.com/.com/som System on Module System on Module (SoM( SoM) ) is an alternative to Single Board Computers for Embedded Systems offering a more flexible

More information

EI 338: Computer Systems Engineering (Operating Systems & Computer Architecture)

EI 338: Computer Systems Engineering (Operating Systems & Computer Architecture) EI 338: Computer Systems Engineering (Operating Systems & Computer Architecture) Dept. of Computer Science & Engineering Chentao Wu wuct@cs.sjtu.edu.cn Download lectures ftp://public.sjtu.edu.cn User:

More information

Evaluation of MIPS Prelinking

Evaluation of MIPS Prelinking Evaluation of MIPS Prelinking Shin ichi TSURUMOTO MITSUBISHI Electric Corporation Advanced Technology R&D Center Overview Obtained prelinker for MIPS, compiler and libraries, and ran them on our target

More information

Android for IVI Android for IVI: overcoming enormous boot time

Android for IVI Android for IVI: overcoming enormous boot time Android for IVI Android for IVI: overcoming enormous boot time Vitaly Wool, BroLab AB IVI In-Vehicle Infotainment Rear-seat entertainment Navigation and location-based services FM Radio, CD/DVD, mp3 Connectivity

More information

The industrial technology is rapidly moving towards ARM based solutions. Keeping this in mind, we are providing a Embedded ARM Training Suite.

The industrial technology is rapidly moving towards ARM based solutions. Keeping this in mind, we are providing a Embedded ARM Training Suite. EMBEDDED ARM TRAINING SUITE ARM SUITE INCLUDES ARM 7 TRAINER KIT COMPILER AND DEBUGGER THROUGH JTAG INTERFACE PROJECT DEVELOPMENT SOLUTION FOR ARM 7 e-linux LAB FOR ARM 9 TRAINING PROGRAM INTRODUCTION

More information

Specification Manual

Specification Manual Document 010-0100002 Document version C Specification Manual SCADA Platform Griffin I'Net, Inc. Page 1 System Hardware Specifications General Specifications -40 to 75 degc ambient temperature range NEMA

More information

Oxalis Getting Started

Oxalis Getting Started Oxalis Getting Started Document: Document: Getting Started Content of the document: Version: 001 First steps to power up, the board, to run uboot, Creator: ANT/MSB build kernel and boot linux. Date: 01.12.2018

More information

LS9200 User Guide LinkSprite Technologies, Inc.

LS9200 User Guide LinkSprite Technologies, Inc. LS9200 User Guide LinkSprite Technologies, Inc. 1 / 17 Table of Contents 1. Foreword... 3 2. Features... 3 3. Part and jumper description... 4 Part description... 4 LED and Key description... 4 Jumper

More information

망고 210 ICS mmc booting 메뉴얼 작성및 patch

망고 210 ICS mmc booting 메뉴얼 작성및 patch 망고 210 ICS mmc booting 메뉴얼 작성및 patch http://www.mangoboard.com/ http://cafe.naver.com/embeddedcrazyboys Crazy Embedded Laboratory www.mangoboard.com cafe.naver.com/embeddedcrazyboys CRZ Technology 1 Document

More information

TOUGH. FAST. WHITE. introducing WHITEspeed. The groundbreaking Computer On Module. Designed & assembled by ERNI in Germany.

TOUGH. FAST. WHITE. introducing WHITEspeed. The groundbreaking Computer On Module. Designed & assembled by ERNI in Germany. TOUGH. FAST. WHITE. introducing WHITEspeed The groundbreaking Computer On Module. Designed & assembled by ERNI in Germany. introducing WHITEspeed TOUGH. FAST. WHITE. Computer On Module with Basic Board

More information

Yaffs Tuning. Charles Manning

Yaffs Tuning. Charles Manning Yaffs Tuning Charles Manning 2012-07-22 Yaffs has many options for tuning for speed or memory use. This document details them for Yaffs Direct and Linux, covering compile time flags and settings, initialisation

More information

Introduction to the Itron Riva Dev Kits

Introduction to the Itron Riva Dev Kits Introduction to the Itron Riva Dev Kits The purpose of this Guide is to give you a fast path to understanding which Itron Riva Dev Kit is best for your development goals. Itron offers 3 kits: Itron Riva

More information

IRON FOR JFFS2. Raja Ram Yadhav Ramakrishnan, Abhinav Kumar. { rramakrishn2, ABSTRACT INTRODUCTION

IRON FOR JFFS2. Raja Ram Yadhav Ramakrishnan, Abhinav Kumar. { rramakrishn2, ABSTRACT INTRODUCTION IRON FOR JFFS2 Raja Ram Yadhav Ramakrishnan, Abhinav Kumar { rramakrishn2, kumar8}@wisc.edu ABSTRACT Flash memory is an increasingly common storage medium in embedded devices, because it provides solid

More information

Contents. Foreword...xxi Preface...xxiii Acknowledgments...xxix About the Author...xxx

Contents. Foreword...xxi Preface...xxiii Acknowledgments...xxix About the Author...xxx Contents Foreword...xxi Preface...xxiii Acknowledgments...xxix About the Author...xxx Chapter 1 Introduction...1 Evolution... 2 The GNU Copyleft... 3 Kernel.org... 4 Mailing Lists and Forums... 4 Linux

More information

OK335x Products Guide. Contents

OK335x Products Guide. Contents Contents Contents... 2 Version history... 3 Chapter One General Introduction... 4 1.1 Products Overview... 4 1.2 Application Fields... 5 Chapter Two OK335xD Single Board Computer... 6 2.1 Product Introduction...

More information

Linux. For BCT RE2G2. User Guide. Document Reference: BCTRE2G2 Linux User Guide. Document Issue: Associated SDK release: 1.

Linux. For BCT RE2G2. User Guide. Document Reference: BCTRE2G2 Linux User Guide. Document Issue: Associated SDK release: 1. Linux For BCT RE2G2 User Guide Document Reference: BCTRE2G2 Linux User Guide Document Issue: 1.05 Associated SDK release: 1.04 Author: D Robinson Contents Introduction... 3 Environment Setup... 3 Required

More information

Fundamental principles of computing

Fundamental principles of computing SPECIMEN MATERIAL FUNDAMENTAL PRINCIPLES OF COMPUTING AQA Level 3 Technical Level IT Fundamental principles of computing Unit Number: Y/507/6424 Specimen Question Paper Time allowed: 2 hours Instructions

More information

MicroZed Open Source Linux In System QSPI Programming Tutorial

MicroZed Open Source Linux In System QSPI Programming Tutorial MicroZed Open Source Linux In System QSPI Programming Tutorial Version 14.5.01 Revision History Version Description Date 14.5.00 Initial release August 13, 2013 Page 2 of 18 Table of Contents Revision

More information

MYD-SAM9X5 Development Board

MYD-SAM9X5 Development Board MYD-SAM9X5 Development Board MYC-SAM9X5 CPU Module as Controller Board and Fully Compatible with Atmel s Official Board 400MHz Atmel AT91SAM9X5 Series ARM926EJ-S Processors 128MB DDR2 SDRAM, 256MB Nand

More information

Quick Operation Manual

Quick Operation Manual DM3730-EVK Integrated with LCD, USB, CCD/COMS, Audio input/output, S-video, Ethernet, Serial port, TF card interface based on 32-bit microcontroller Quick Operation Manual Version updates record: Version

More information

Solid State Drives (SSDs) Jin-Soo Kim Computer Systems Laboratory Sungkyunkwan University

Solid State Drives (SSDs) Jin-Soo Kim Computer Systems Laboratory Sungkyunkwan University Solid State Drives (SSDs) Jin-Soo Kim (jinsookim@skku.edu) Computer Systems Laboratory Sungkyunkwan University http://csl.skku.edu Memory Types FLASH High-density Low-cost High-speed Low-power High reliability

More information

Embedded Systems: Architecture

Embedded Systems: Architecture Embedded Systems: Architecture Jinkyu Jeong (Jinkyu@skku.edu) Computer Systems Laboratory Sungkyunkwan University http://csl.skku.edu ICE3028: Embedded Systems Design, Fall 2018, Jinkyu Jeong (jinkyu@skku.edu)

More information

Thanks for purchasing one of the most cutting edge mini computing devices available today,

Thanks for purchasing one of the most cutting edge mini computing devices available today, Welcome! Thanks for purchasing one of the most cutting edge mini computing devices available today, the MK802IV LE. The MK802IV LE is a powerful quad core Linux mini computer which runs a version of Ubuntu

More information

The Early System Start-Up Process. Group Presentation by: Tianyuan Liu, Caiwei He, Krishna Parasuram Srinivasan, Wenbin Xu

The Early System Start-Up Process. Group Presentation by: Tianyuan Liu, Caiwei He, Krishna Parasuram Srinivasan, Wenbin Xu The Early System Start-Up Process Group Presentation by: Tianyuan Liu, Caiwei He, Krishna Parasuram Srinivasan, Wenbin Xu 1 Boot Process Booting is the initialization of a computerized system In Linux,

More information

Reverse Engineering NAND Flash

Reverse Engineering NAND Flash Reverse Engineering NAND Flash Adapted from Josh m0nk Thomas s Black Hat PresentaBon Andrew bunnie Huang & Sean xobs Cross 30c3 PresentaBon Presented by Ben RuktanBchoke NAND:Hard It Work FloaBng gate

More information

Fast and Vulnerable A Story of Telematic Failures

Fast and Vulnerable A Story of Telematic Failures Fast and Vulnerable A Story of Telematic Failures Center for Automotive Embedded Systems Security Ian Foster, Andrew Prudhomme, Karl Koscher, and Stefan Savage Telematic Control Units Connects to car s

More information