soc/sifive/fu540: Switch clock to 1GHz in romstage

Invoke clock_init in romstage for SiFive Unleashed.

Change-Id: Ib869762d557e8fdf4c83a53698102df116d80389
Signed-off-by: Philipp Hug <philipp@hug.cx>
Reviewed-on: https://review.coreboot.org/28602
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/soc/sifive/fu540/Makefile.inc b/src/soc/sifive/fu540/Makefile.inc
index b991783b6c60..ed1836ed67a9 100644
--- a/src/soc/sifive/fu540/Makefile.inc
+++ b/src/soc/sifive/fu540/Makefile.inc
@@ -22,6 +22,7 @@ romstage-y += uart.c
 romstage-y += media.c
 romstage-y += sdram.c
 romstage-y += otp.c
+romstage-y += clock.c
 
 ramstage-y += uart.c
 ramstage-y += clint.c
@@ -29,6 +30,7 @@ ramstage-y += media.c
 ramstage-y += sdram.c
 ramstage-y += cbmem.c
 ramstage-y += otp.c
+ramstage-y += clock.c
 
 CPPFLAGS_common += -Isrc/soc/sifive/fu540/include