AN 981: Using Generic QSPI Flash on SDM Devices

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ID 778053
Date 7/02/2024
Public
Document Table of Contents
Document Table of Contents x
1. Introduction 2. Overview 3. Requirements 4. Implementation Flow 5. Debugging QSPI Flash Device using QSPI Debugger 6. Document Revision History for AN 981: Using Generic QSPI Flash on SDM Devices
3. Requirements x
3.1. QPI Mode (4-4-4 protocol) 3.2. Sector Erase Size 3.3. Maximum QSPI Clock 3.4. QSPI Flash Device Reset Pin 3.5. QSPI Page Program Opcode 3.6. SFDP Parameters
4. Implementation Flow x
4.1. Generating Programming Files using Programming File Generator 4.2. Programming .jic files into QSPI Flash Device 4.3. Hard Processor System (HPS) Support
1. Introduction
2. Overview
3. Requirements
4. Implementation Flow
5. Debugging QSPI Flash Device using QSPI Debugger
6. Document Revision History for AN 981: Using Generic QSPI Flash on SDM Devices

4.3. Hard Processor System (HPS) Support

Software running on the Hard Processor System (HPS) in the Intel SoC devices can use the QSPI flash after requesting exclusive access to it from the SDM.

In order for the software to use the selected QSPI device, you need to enable support for it, typically in U-Boot and Linux.

Refer to Enabling New QSPI parts in U-Boot and Linux in Rocketboards for more details.

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