1 files changed, 32 insertions, 0 deletions
diff --git a/arch/riscv/cpu/th1520/cache.c b/arch/riscv/cpu/th1520/cache.c
new file mode 100644
index 00000000000..08aa1f789fd
--- /dev/null
+++ b/arch/riscv/cpu/th1520/cache.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2025 Yao Zi <ziyao@disroot.org>
+ */
+
+#include <asm/io.h>
+#include <cpu_func.h>
+#include <linux/bitops.h>
+
+#define CSR_MHCR		0x7c1
+#define  CSR_MHCR_IE		BIT(0)
+#define  CSR_MHCR_DE		BIT(1)
+
+void icache_enable(void)
+{
+	csr_write(CSR_MHCR, csr_read(CSR_MHCR) | CSR_MHCR_IE);
+}
+
+void dcache_enable(void)
+{
+	csr_write(CSR_MHCR, csr_read(CSR_MHCR) | CSR_MHCR_DE);
+}
+
+int icache_status(void)
+{
+	return (csr_read(CSR_MHCR) & CSR_MHCR_IE) != 0;
+}
+
+int dcache_status(void)
+{
+	return (csr_read(CSR_MHCR) & CSR_MHCR_DE) != 0;
+}