[coreboot-gerrit] Change in coreboot[master]: soc/amd/picasso: disable FCH_48MHZ_CLK_OUT

[John Su (Code Review)]

John Su has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/48556 )

Change subject: soc/amd/picasso: disable FCH_48MHZ_CLK_OUT
......................................................................

soc/amd/picasso: disable FCH_48MHZ_CLK_OUT

If we determine to use external oscillator 48MH,
I will disable FCH_48MHZ_CLK_OUT for vilboz.

Signed-off-by: John Su 
Change-Id: Ida747938373f648524b1e7f34bc69e372a69c4f9
---
M src/soc/amd/picasso/fch.c
1 file changed, 1 insertion(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/56/48556/1

diff --git a/src/soc/amd/picasso/fch.c b/src/soc/amd/picasso/fch.c
index cda509b..d55bd36 100644
--- a/src/soc/amd/picasso/fch.c
+++ b/src/soc/amd/picasso/fch.c
@@ -91,7 +91,7 @@
    u32 ctrl;

ctrl = misc_read32(MISC_CLK_CNTL1);
-	ctrl |= BP_X48M0_OUTPUT_EN;
+	ctrl &= ~BP_X48M0_OUTPUT_EN;
    misc_write32(MISC_CLK_CNTL1, ctrl);
 }