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Hello I am asking here because I do not see a general firmware Stack Exchange or better place. I am open to suggestions on that.

But my question is pertaining to Intel Atom SoCs. I am interested in when the processor resets, then the BSD executes instructions from 0xFFFFFFF0 which is 16 bytes below the 1 MB limit in real mode. What should my firmware do at this point, I think it should perform a jump to somewhere that the BIOS/firmware is mapped to. Basically can someone map out the 16 MB Spi flash ROM to logical addresses on the SoC.

Helmar
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marshal craft
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1 Answers1

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The firmware should jump to a routine that reads the second stage boot loader into RAM and then execute it. To map the SPI in the logical memory space the SoC would have to support this internally.

The question is not out of place here, but you can always ask hardware related questions at Electrical Engineering.SE.

Aurora0001
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555
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