src/sifive: Add the SiFive Freedom Unleashed 540 SoC

The FU540 is the first RISC-V SoC with the necessary resources to run
Linux (an external memory interface, MMU, etc).

More information is available on SiFive's website:

Change-Id: Ic2a3c7b1dfa56b67cc0571969cc9cf67a770ae43
Signed-off-by: Jonathan Neuschäfer <>
Tested-by: build bot (Jenkins) <>
Reviewed-by: Ronald G. Minnich <>
10 files changed