Boot The i.mx6 dual With Linux+uC/OS-II AMP

[#1]

Author:Fourier Email:samssmarm@gmail.com

AMP:(Asymmetric Multiple Processing)

Scenario:cpu core 0 run Linux, cpu core 1 run uC/OS-II RTOS. HDMI display panel link to Linux, LCD display panel link to uC/OS-II RTOS.

Platform:

Mars Board(freesclae i.mx6 dual Coretex-A9 core, 1GB 64bit DDR3)

Panda Board(TIOMAP4460 dual Cortex-A9 core, 1GB 32bit DDR3)

Altera SoC EVMBoard(dual Cortex-A9 core, (512MB+256MB ECC) DDR3 on HPS, 512MB on FPGA)

Video Demo On Mars Board:

Youtube: http://youtu.be/yb6KC6Cf8i4

http://youtu.be/1uzrX-YZBnQ

Youku: http://v.youku.com/v_show/id_XNTMyNTAzNjky.html

AMP Port:

Linux SMP boot procedure is not mention here, For detail about the Linux SMP boot procedure please refer to the document here,http://www.linux-arm.org/LinuxBootLoader/SMPBoot.I just move the boot secondary procedure from Linux to U-boot as figure 1 in the AMP implementation, and figure2 describe the GIC relationship between two core and physical memory layout between Linux and uC/OS-II.

Figure 1

Figure 2

Display Subsystem Block on Mars Board and Panda Board:

Figure 3 imx6 display subsystem(Mars Board)

Figure 4 omap4460 display subsystem on panda board

[nehaly_omran]

hello,
thanks for illustration but how could i get the port for ucOS-II??
regards

[#3]

can u list the source code for the porting layer or the illustration about it on cortex a9  thnx in advance

[aureliengrange]

Hi,

I would thank you for this demonstration.

I am a beginner to IMX6 product and I want to use two different OS as you (one for HMI and the other one for computation/control).

Is there a memory latency due to each OS tries to access the memory at the same time?

If yes do you know the how long time are needed?

Thanks for your information

[saravanankrish]

Hi,

Thanks a lot for your presentation.

i have the RTOS image in ELF format. May i know how to load and execute the same in secondary cores?

my entry point is 0x30000000. 

1. i have used "fatload mmc 1:1 0x30000000 rtos.elf" to load the image in U-boot console.

2. "cpu 1 release 0x30000000" but nothing works

could you please help me to solve this issue?

Thanks in advance