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TPS65982DMC: Flashing the SPI memory chip during manufacturing

Part Number: TPS65982DMC

Do we need to have any dedicated circuitry to disconnect SPI memory from DMC when we want to flash the SPI in production? Are the SPI pins failsafe meaning there is no risk of backfeeding the board through DMC when the DMC has no power?

We are mainly following Gorilla Creek reference design.