soc/amd/stoneyridge: Enable spread spectrum in bootblock

setup_spread_spectrum is called in early_init, meaning the console is
not initialized yet. So you won't see boot block booting twice.

BUG=b:111610455
TEST=booted grunt and verified that AmdInitReset does not reboot. I had
AGESA patched to skip the JTAG check.

Change-Id: Ia036ea513ac67d4b8bcf5a78029d969a4ae012a6
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-on: https://review.coreboot.org/27813
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/soc/amd/stoneyridge/sb_util.c b/src/soc/amd/stoneyridge/sb_util.c
index 26c86e8238..9daf0bbf8d 100644
--- a/src/soc/amd/stoneyridge/sb_util.c
+++ b/src/soc/amd/stoneyridge/sb_util.c
@@ -36,6 +36,16 @@ u16 pm_read16(u8 reg)
 	return read16((void *)(PM_MMIO_BASE + reg));
 }
 
+void misc_write32(u8 reg, u32 value)
+{
+	write32((void *)(MISC_MMIO_BASE + reg), value);
+}
+
+u32 misc_read32(u8 reg)
+{
+	return read32((void *)(MISC_MMIO_BASE + reg));
+}
+
 void pm_write32(u8 reg, u32 value)
 {
 	write32((void *)(PM_MMIO_BASE + reg), value);