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-rw-r--r--arch/riscv/include/asm/csr.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h
index 0f2e68f4e8..2468c55933 100644
--- a/arch/riscv/include/asm/csr.h
+++ b/arch/riscv/include/asm/csr.h
@@ -411,6 +411,15 @@
#define CSR_VTYPE 0xc21
#define CSR_VLENB 0xc22
+/* Scalar Crypto Extension - Entropy */
+#define CSR_SEED 0x015
+#define SEED_OPST_MASK _AC(0xC0000000, UL)
+#define SEED_OPST_BIST _AC(0x00000000, UL)
+#define SEED_OPST_WAIT _AC(0x40000000, UL)
+#define SEED_OPST_ES16 _AC(0x80000000, UL)
+#define SEED_OPST_DEAD _AC(0xC0000000, UL)
+#define SEED_ENTROPY_MASK _AC(0xFFFF, UL)
+
#ifdef CONFIG_RISCV_M_MODE
# define CSR_STATUS CSR_MSTATUS
# define CSR_IE CSR_MIE