1 files changed, 89 insertions, 0 deletions
diff --git a/roms/opensbi/platform/andes/ae350/cache.c b/roms/opensbi/platform/andes/ae350/cache.c
new file mode 100644
index 000000000..af724c5c7
--- /dev/null
+++ b/roms/opensbi/platform/andes/ae350/cache.c
@@ -0,0 +1,89 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2020 Andes Technology Corporation
+ *
+ * Authors:
+ *   Nylon Chen <nylon7@andestech.com>
+ */
+
+#include <sbi/riscv_asm.h>
+#include <sbi/riscv_io.h>
+#include <sbi/sbi_types.h>
+#include "platform.h"
+
+uintptr_t mcall_set_mcache_ctl(unsigned long input)
+{
+	csr_clear(CSR_MCACHECTL, V5_MCACHE_CTL_MASK);
+	csr_write(CSR_MCACHECTL, input);
+	return 0;
+}
+
+uintptr_t mcall_set_mmisc_ctl(unsigned long input)
+{
+	csr_clear(CSR_MMISCCTL, V5_MMISC_CTL_MASK);
+	csr_write(CSR_MMISCCTL, input);
+	return 0;
+}
+
+uintptr_t mcall_icache_op(unsigned int enable)
+{
+	if (enable) {
+		csr_set(CSR_MCACHECTL, V5_MCACHE_CTL_IC_EN);
+	} else {
+		csr_clear(CSR_MCACHECTL, V5_MCACHE_CTL_IC_EN);
+		asm volatile("fence.i\n\t");
+	}
+	return 0;
+}
+
+uintptr_t mcall_dcache_op(unsigned int enable)
+{
+	if (enable) {
+		csr_set(CSR_MCACHECTL, V5_MCACHE_CTL_DC_EN);
+	} else {
+		csr_clear(CSR_MCACHECTL, V5_MCACHE_CTL_DC_EN);
+		csr_write(CSR_MCCTLCOMMAND, V5_UCCTL_L1D_WBINVAL_ALL);
+	}
+	return 0;
+}
+
+uintptr_t mcall_l1_cache_i_prefetch_op(unsigned long enable)
+{
+	if (enable) {
+		csr_set(CSR_MCACHECTL, V5_MCACHE_CTL_L1I_PREFETCH_EN);
+	} else {
+		csr_clear(CSR_MCACHECTL, V5_MCACHE_CTL_L1I_PREFETCH_EN);
+	}
+	return 0;
+}
+
+uintptr_t mcall_l1_cache_d_prefetch_op(unsigned long enable)
+{
+	if (enable) {
+		csr_set(CSR_MCACHECTL, V5_MCACHE_CTL_L1D_PREFETCH_EN);
+	} else {
+		csr_clear(CSR_MCACHECTL, V5_MCACHE_CTL_L1D_PREFETCH_EN);
+	}
+	return 0;
+}
+
+uintptr_t mcall_non_blocking_load_store(unsigned long enable)
+{
+	if (enable) {
+		csr_set(CSR_MCACHECTL, V5_MMISC_CTL_NON_BLOCKING_EN);
+	} else {
+		csr_clear(CSR_MCACHECTL, V5_MMISC_CTL_NON_BLOCKING_EN);
+	}
+	return 0;
+}
+
+uintptr_t mcall_write_around(unsigned long enable)
+{
+	if (enable) {
+		csr_set(CSR_MCACHECTL, V5_MCACHE_CTL_DC_WAROUND_1_EN);
+	} else {
+		csr_clear(CSR_MCACHECTL, V5_MCACHE_CTL_DC_WAROUND_1_EN);
+	}
+	return 0;
+}