没有合适的资源?快使用搜索试试~ 我知道了~
高通80-n1218-1-r-ddr-sdram-cdt-ecdt-user-guide
需积分: 0 2 下载量 36 浏览量
2023-01-18
23:33:40
上传
评论 1
收藏 429KB PDF 举报
温馨提示
试读
58页
高通低端芯片DDR CDT 介绍
资源推荐
资源详情
资源评论
DDR SDRAM CDT/eCDT
User Guide
80-N1218-1 Rev. R
December 17, 2019
Confidential and Proprietary - Qualcomm Technologies, Inc.
NO PUBLIC DISCLOSURE PERMITTED: Please report postings of this document on public servers or websites to
DocCtrlAgent@qualcomm.com.
Restricted Distribution: Not to be distributed to anyone who is not an employee of either Qualcomm Technologies, Inc. or its affiliated
companies without the express approval of Qualcomm Configuration Management.
Not to be used, copied, reproduced, or modified in whole or in part, nor its contents revealed in any manner to others without the express
written permission of Qualcomm Technologies, Inc.
All Qualcomm products mentioned herein are products of Qualcomm Technologies, Inc. and/or its subsidiaries.
Qualcomm and MSM are trademarks of Qualcomm Incorporated, registered in the United States and other countries. Other product and brand
names may be trademarks or registered trademarks of their respective owners.
This technical data may be subject to U.S. and international export, re-export, or transfer ("export") laws. Diversion contrary to U.S. and
international law is strictly prohibited.
Qualcomm Technologies, Inc.
5775 Morehouse Drive
San Diego, CA 92121
U.S.A.
©
2010-2013, 2015-2019 Qualcomm Technologies, Inc. and/or its subsidiaries. All rights reserved.
Revision history
Revision Date Description
A May 2010 Initial release.
B December 2010 Updated Section 2.2 and Chapter 4
C November 2011 Updated Table 1-1, Chapter 4; added Chapter 5
D December 2012 Added Table 2-1; numerous changes in Chapter 5; added Chapter 6
E November 2013 Updated Table 2-1 and Chapter 6
F May 2015 Updated Table 2-1; added Table 6-2
G June 2015 Updated Table 2-1; numerous changes in Chapter 3; Added Section 6.1.7 and
Section 6.1.8
H January 2016 Updated Table 2-1, Section 6.1.4, and Table 6-2
J September 2016
■
Removed obsolete information
■
Added Section 4.3
K November 2016 Updates for MSM8920
L July 2017
■
Added Section 5 and FAQs
■
Updated Table 4-2
M July 2018 Updated Chapter 2
N March 2019 Updated to current Qualcomm Technologies, Inc. (QTI) standards; no technical
content was changed
P May 2019 Added the following sections:
■
Platform ID value
■
Create a CDT
■
Platform ID and subsystem examples
R December 2019 Updated SDX50M boot_images section
NOTE
There is no Rev. I, O, Q, S, X, or Z per Mil. standards.
80-N1218-1 Rev. R Confidential and Proprietary - Qualcomm Technologies, Inc.
MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION
2
Contents
Revision history .................................................................................... 2
1 Introducon ...................................................................................... 5
1.1 Purpose .................................................................................... 5
1.2 Convenons ................................................................................ 5
1.3 Technical assistance .......................................................................... 5
2 CDT/eCDT overview ............................................................................... 6
2.1 Plaorm ID value ............................................................................ 6
2.2 CDT general structure ........................................................................ 7
2.2.1 CDT header .......................................................................... 8
2.2.2 Block metadata ....................................................................... 8
2.2.3 CDBs ................................................................................ 9
2.3 Create a CDT ................................................................................ 9
2.4 Parse a CDT ................................................................................ 10
2.5 CDB0 – Plaorm ID detailed descripon ....................................................... 11
2.6 BLOCK 1 (CDB1) – DDR parameters detailed descripon ......................................... 11
2.7 Plaorm ID and subsystem examples .......................................................... 13
2.7.1 SM8150 boot_images ................................................................ 13
2.7.2 SDX50M boot_images ................................................................ 13
2.7.3 Androld bootloader (ABL) .............................................................14
2.7.4 Linux kernel ......................................................................... 14
2.7.5 SDX50M apps_proc (thin UI) .......................................................... 15
2.7.6 SM8150 trustzone_images ............................................................ 15
3 Legacy CDT and DDR customizaon ................................................................ 16
3.1 Development of CDT based on an .xml le ..................................................... 16
3.2 Reference CDT .xml le for DDR parameters .................................................... 16
3.2.1 LPDDR2 CDT .xml le for dual-DDR channel ............................................. 16
3.2.2 LPDDR2 CDT .xml le for single DDR channel ............................................ 20
3.2.3 LPDDR1 CDT .xml le for MDM9615 .................................................... 21
3.2.4 PCDDR3 CDT .xml le for APQ8064 ..................................................... 23
80-N1218-1 Rev. R Confidential and Proprietary - Qualcomm Technologies, Inc.
MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION
3
3.2.5 LPDDR2 CDT .xml customizaon ....................................................... 26
3.2.6 LPDDR1 CDT .xml customizaon ....................................................... 26
3.2.7 PCDDR3 CDT .xml customizaon ....................................................... 27
3.3 To substute EEPROM, generate CDT.c le ..................................................... 29
3.4 Rank detecon per channel .................................................................. 30
3.5 Device density detecon per channel ......................................................... 31
4 DAL CDT and DDR customizaon ................................................................... 32
4.1 Reference DAL CDT .xml le for DDR parameters ................................................ 32
4.1.1 LPDDR3 DAL CDT .xml le for dual-DDR channel ......................................... 32
4.1.2 LPDDR3 CDT .xml le for single DDR channel ............................................ 36
4.1.3 LPDDR3 CDT .xml customizaon ....................................................... 36
4.1.4 LPDDR2 DAL CDT .xml le for single DDR channel ........................................ 36
4.1.5 PCDDR3 DAL CDT .xml le for APQ8084 .................................................40
4.1.6 PCDDR3 CDT .xml customizaon ....................................................... 44
4.1.7 LPDDR4 DAL CDT .xml le for dual-DDR channel ......................................... 45
4.1.8 LPDDR4 CDT .xml customizaon ....................................................... 49
4.2 Parse a DAL CDT ............................................................................ 49
4.3 Enhanced CDT (eCDT) ....................................................................... 50
4.3.1 Locate the eCDT secon in the CDT .xml ................................................ 50
4.3.2 Customize CDT .xml for eCDT .......................................................... 51
5 Program CDT using QFIL .......................................................................... 52
A Common issues .................................................................................. 56
B References ...................................................................................... 57
B.1 Related documents ......................................................................... 57
B.2 Acronyms and terms ........................................................................ 57
DDR SDRAM CDT/eCDT User Guide Contents
80-N1218-1 Rev. R Confidential and Proprietary - Qualcomm Technologies, Inc.
MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION
4
1 Introducon
1.1 Purpose
Configuration data table/enhanced configuration data table (CDT/eCDT) contains important device
configuration data, like platform ID and DDR timing parameters.
This document covers how customers can confirm and change DDR timing parameters defined in
CDT/eCDT.
1.2 Convenons
Function declarations, function names, type declarations, attributes, and code samples appear in a
different font, for example, cp armcc armcpp.
Code variables appear in angle brackets, for example, <number>.
Commands to be entered appear in a different font, for example, copy a:*.* b:.
Button and key names appear in bold font, for example, click Save or press Enter.
If you are viewing this document using a color monitor, or if you print this document to a color printer,
red indicates code that is to be added, and
blue strikethrough indicates code that is to be replaced or
removed.
1.3 Technical assistance
For assistance or clarification on information in this document, submit a case to QTI at https://
createpoint.qti.qualcomm.com/.
If you do not have access to the CDMATech Support website, register for access or send email to
support.cdmatech@qti.qualcomm.com.
80-N1218-1 Rev. R Confidential and Proprietary - Qualcomm Technologies, Inc.
MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION
5
剩余57页未读,继续阅读
资源评论
siyu1996
- 粉丝: 1
- 资源: 6
上传资源 快速赚钱
- 我的内容管理 展开
- 我的资源 快来上传第一个资源
- 我的收益 登录查看自己的收益
- 我的积分 登录查看自己的积分
- 我的C币 登录后查看C币余额
- 我的收藏
- 我的下载
- 下载帮助
安全验证
文档复制为VIP权益,开通VIP直接复制
信息提交成功