diff --git a/platform/generic/Kconfig b/platform/generic/Kconfig
index 3be75cf3..f9e7ed2a 100644
--- a/platform/generic/Kconfig
+++ b/platform/generic/Kconfig
@@ -56,6 +56,7 @@ config PLATFORM_STARFIVE_JH7110
 config PLATFORM_THEAD
 	bool "THEAD C9xx support"
 	select THEAD_C9XX_ERRATA
+	select THEAD_C9XX_PMU
 	default n
 
 source "$(OPENSBI_SRC_DIR)/platform/generic/andes/Kconfig"
diff --git a/platform/generic/thead/thead-generic.c b/platform/generic/thead/thead-generic.c
index c77140c3..72f4aaac 100644
--- a/platform/generic/thead/thead-generic.c
+++ b/platform/generic/thead/thead-generic.c
@@ -8,6 +8,7 @@
 
 #include <platform_override.h>
 #include <thead/c9xx_errata.h>
+#include <thead/c9xx_pmu.h>
 #include <sbi/sbi_const.h>
 #include <sbi/sbi_platform.h>
 #include <sbi/sbi_scratch.h>
@@ -29,6 +30,13 @@ static int thead_generic_early_init(bool cold_boot,
 	return 0;
 }
 
+static int thead_generic_extensions_init(const struct fdt_match *match,
+					 struct sbi_hart_features *hfeatures)
+{
+	thead_c9xx_register_pmu_device();
+	return 0;
+}
+
 static struct thead_generic_quirks thead_th1520_quirks = {
 	.errata = THEAD_QUIRK_ERRATA_TLB_FLUSH,
 };
@@ -39,6 +47,7 @@ static const struct fdt_match thead_generic_match[] = {
 };
 
 const struct platform_override thead_generic = {
-	.match_table	= thead_generic_match,
-	.early_init	= thead_generic_early_init,
+	.match_table		= thead_generic_match,
+	.early_init		= thead_generic_early_init,
+	.extensions_init	= thead_generic_extensions_init,
 };