iMX5 system 80 interface LCD driver based on IPUV3

Document created by Qiang Li - Mpu Se Employee on Aug 17, 2015Last modified by ebiz_ws_prod on Dec 13, 2017
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The attached is the document and sample code for iMX5 system 80 interface LCD driver based on IPUV3.

It is based on iMX51 2.6.31_09.12 BSP (SDK 1.7), tested on iMX53 3-Stack board.


1. Description

This is Smartlcd driver for Freescale MX51 SDK1.7 release. (Kernel: 2.6.31_09.12.00/01) 


2. File List

-- Smartlcd_giantplus_4_IMX51_Linux_2.6.31_09.12.01.patch: SmartLCD panel support patch, and unit test code.

-- Sample.config: the config file for reference.

-- readme.txt: this file, please refer to it before use the package.

-- SmartLCD Structure.pptx: the basic structure for smartlcd on IPUv3.


3. Requirement

- MX51_3DS Green board(TO2.0) - No hardware rework needed, only need plug the giantplus GMA722A0 to J10.
- MX51 SDK1.7 release package - L2.6.31_09.12.00_SDK_source.tar.gz


4. How to use

4.1 How to use demo

-- Program default redboot.bin to board via ATKtools

-- Copy attached zImage to tftp folder (assume /tftpboot)

-- extract default rootfs to NFS folder (assume /nfsroot)

-- COPY attached imx51_fb_test to ~/unit_test folder.

-- Power on the board

-- After redboot is boot up, use following command to boot up linux kernel
   load -r -b 0x100000 zImage
   exec -c "noinitrd console=ttymxc0 root=/dev/nfsroot rootfstype=nfsroot nfsroot= rw ip=dhcp"

-- Once the linux kernel launched, run following commands to test smartlcd panel.
   cd /unit_tests


4.2 How to use source code

-- Current release code is based on L2.6.31_09.12.00_SDK_source.tar.gz. Extract the file to your working folder.

-- Entering the working folder and type "./install", select a folder to install ltib. (such as .../ltib)

-- Entering ltib folder and type "./ltib" to build Linux platform.  If you are not familiar with this setp, please refer to doc "i.MX_3Stack_SDK_UserGuide.pdf" for detail.

-- Entering folder ".../ltib/rpm/BUILD/linux", copy "Smartlcd_giantplus_4_IMX51_Linux_2.6.31_09.12.01.patch" from release package to current folder
   Run command "patch -p1 < Smartlcd_giantplus_4_IMX51_Linux_2.6.31_09.12.01.patch"

-- When complete, run command "make ARCH=arm menuconfig", and you can refer to attached sample.config for detail.
   * enable
   Device Drivers ----> Graphics support ----> [*]   Asynchronous Panels  
                                         ----> [*] GiantPlus 240x320 Panel
   * disable
   Device Drivers ----> Graphics support ----> [ ]   Synchronous Panel Framebuffer
                                        ----> Multimedia support    ----> [ ]   Video For Linux
   -- Run command "make ARCH=arm" to build kernel. 


4.3 How to do SMARTLCD driver test

-- After Smartlcd_giantplus_4_IMX51_Linux_2.6.31_09.12.01.patch applied, there will be an folder "IMX51_TEST" under linux.

-- Go to that folder, and run "make ARCH=arm", imx51_fb_test will be created.

-- Copy imx51_fb_test to rootfs/unit_test. and run.


5. History



6. Known Issue

-- V4L2 not working yet.

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