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How to configure boot (u-boot) logic to boot Linux on ARM from SD card and then boot DSP from Nand Flash as a secondary boot

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Hi there,

I am using OMAP-L138 device and currently using NAND Flash to boot DSP application and all seems to work fine. However, Now I would like to add Linux on ARM core but would like to still use the Linux boot from SD card that came with the OMAPL138 LCDK kit. 

In the DSP boot procedure, I am using the primary boot to wake DSP from ARM core and then using the secondary bootloader to load DSP Application. But how can I switch to run Linux on ARM instead of just running an application to wake up DSP? Thanks.

Regards,

Mitesh


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