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ADL-P-DDR4 RVP has on board Microchip EC-MEC1521. This code enables
RVP powering ON using this on board EC, instead of Mica EC.
As this onboard EC doesn't have internal flash memory, EC binary of
512KB size generated is flashed to external SPI Flash1(32MB size)
available on RVP over SPI using servo.This image from flash1 is
then bootloaded by MEC1521, when powered ON.
BUG=b:186669325
BRANCH=none
TEST=ADL-P-DDR4 board with Microchip 1521 EC booted to S0.
Signed-off-by: Poornima Tom <poornima.tom@intel.com>
Change-Id: I39f937f60e2f79b0d2de195621084e3276e36bf2
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2755363
Tested-by: Vijay Hiremath <vijay.p.hiremath@intel.com>
Reviewed-by: caveh jalali <caveh@chromium.org>
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