Boot The Cortex-A9 MPCORE With Linux+uC/OS-II AMP
Author:Fourier Email:[email protected]
AMP:(AsymmetricMultiple Processing)
Scenario:cpu core 0 run Linux, cpu core 1 run uC/OS-II RTOS. HDMI display panellink to Linux, LCD display panel link to uC/OS-II RTOS.
Platform:
MarsBoard(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 bootprocedure is not mention here, For detail about the Linux SMP boot procedure pleaserefer 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 layoutbetween 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