1 files changed, 46 insertions, 0 deletions
diff --git a/src/soc/amd/cezanne/psp_verstage/chipset.c b/src/soc/amd/cezanne/psp_verstage/chipset.c
new file mode 100644
index 000000000000..7f944ebcbcb0
--- /dev/null
+++ b/src/soc/amd/cezanne/psp_verstage/chipset.c
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/* This file contains stub for not-yet-implemented svc in cezanne PSP.
+ * So this file will and should be removed eventually when psp_verstage works
+ * correctly in cezanne.
+ */
+
+#include <bl_uapp/bl_syscall_public.h>
+#include <console/console.h>
+#include <psp_verstage.h>
+#include <reset.h>
+#include <timer.h>
+
+uint32_t update_psp_bios_dir(uint32_t *psp_dir_offset, uint32_t *bios_dir_offset)
+{
+	return svc_update_psp_bios_dir(psp_dir_offset, bios_dir_offset);
+}
+
+uint32_t save_uapp_data(void *address, uint32_t size)
+{
+	return svc_save_uapp_data(address, size);
+}
+
+
+/* Functions below are stub functions for not-yet-implemented PSP features.
+ * These functions should be replaced with proper implementations later.
+ */
+
+uint32_t svc_write_postcode(uint32_t postcode)
+{
+	return 0;
+}
+
+static uint64_t tmp_timer_value = 0;
+void timer_monotonic_get(struct mono_time *mt)
+{
+	mt->microseconds = tmp_timer_value / 1000;
+	tmp_timer_value++;
+}
+
+void do_board_reset(void)
+{
+	printk(BIOS_ERR, "Reset not implemented yet.\n");
+	while (1)
+		;
+}