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-rw-r--r--src/mainboard/amd/onyx/Kconfig1
-rw-r--r--src/soc/amd/genoa/Makefile.inc1
-rw-r--r--src/soc/amd/genoa/reset.c27
3 files changed, 28 insertions, 1 deletions
diff --git a/src/mainboard/amd/onyx/Kconfig b/src/mainboard/amd/onyx/Kconfig
index 260a498c65..21c8c8519c 100644
--- a/src/mainboard/amd/onyx/Kconfig
+++ b/src/mainboard/amd/onyx/Kconfig
@@ -3,7 +3,6 @@ if BOARD_AMD_ONYX
config BOARD_SPECIFIC_OPTIONS
def_bool y
select SOC_AMD_GENOA
- select MISSING_BOARD_RESET
select BOARD_ROMSIZE_KB_32768
config FMDFILE
diff --git a/src/soc/amd/genoa/Makefile.inc b/src/soc/amd/genoa/Makefile.inc
index 56a98e6b48..efbd3b1275 100644
--- a/src/soc/amd/genoa/Makefile.inc
+++ b/src/soc/amd/genoa/Makefile.inc
@@ -2,6 +2,7 @@
ifeq ($(CONFIG_SOC_AMD_GENOA),y)
all-y += mmap_boot.c
+all-y += reset.c
all-y += config.c
bootblock-y += early_fch.c
diff --git a/src/soc/amd/genoa/reset.c b/src/soc/amd/genoa/reset.c
new file mode 100644
index 0000000000..ac0c981718
--- /dev/null
+++ b/src/soc/amd/genoa/reset.c
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <arch/io.h>
+#include <cf9_reset.h>
+#include <reset.h>
+#include <soc/southbridge.h>
+#include <amdblocks/acpimmio.h>
+#include <amdblocks/reset.h>
+
+void do_cold_reset(void)
+{
+ /* De-assert and then assert all PwrGood signals on CF9 reset. */
+ pm_write16(PWR_RESET_CFG, pm_read16(PWR_RESET_CFG) |
+ TOGGLE_ALL_PWR_GOOD);
+ outb(RST_CPU | SYS_RST, RST_CNT);
+}
+
+void do_warm_reset(void)
+{
+ /* Warm resets are not supported and must be executed as cold */
+ do_cold_reset();
+}
+
+void do_board_reset(void)
+{
+ do_cold_reset();
+}