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-rw-r--r--include/drivers/nxp/smmu/nxp_smmu.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/include/drivers/nxp/smmu/nxp_smmu.h b/include/drivers/nxp/smmu/nxp_smmu.h
new file mode 100644
index 0000000000..d64c33b206
--- /dev/null
+++ b/include/drivers/nxp/smmu/nxp_smmu.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2018-2020 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#ifndef NXP_SMMU_H
+#define NXP_SMMU_H
+
+#define SMMU_SCR0 (0x0)
+#define SMMU_NSCR0 (0x400)
+
+#define SCR0_CLIENTPD_MASK 0x00000001
+#define SCR0_USFCFG_MASK 0x00000400
+
+static inline void bypass_smmu(uintptr_t smmu_base_addr)
+{
+ uint32_t val;
+
+ val = (mmio_read_32(smmu_base_addr + SMMU_SCR0) | SCR0_CLIENTPD_MASK) &
+ ~(SCR0_USFCFG_MASK);
+ mmio_write_32((smmu_base_addr + SMMU_SCR0), val);
+
+ val = (mmio_read_32(smmu_base_addr + SMMU_NSCR0) | SCR0_CLIENTPD_MASK) &
+ ~(SCR0_USFCFG_MASK);
+ mmio_write_32((smmu_base_addr + SMMU_NSCR0), val);
+}
+
+#endif