This patch fixes wrong PLIC irq number of UART and SPI for SiFive
FU740 on HiFive Unmatched. Use samples/subsys/console/echo for
testing.
Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
This patch adds support for SiFive Freedom U740 SoC.
First version is minimum only using UART, SPI and L2-LIM area.
Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>