arm: npcm8xx: add security feature header

The NPCM driver can use on npcm7xx/npcm8xx
so add npcm8xx header for driver.

Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
diff --git a/arch/arm/include/asm/arch-npcm8xx/aes.h b/arch/arm/include/asm/arch-npcm8xx/aes.h
new file mode 100644
index 0000000..255efcb
--- /dev/null
+++ b/arch/arm/include/asm/arch-npcm8xx/aes.h
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef _NPCM_AES_H_
+#define _NPCM_AES_H_
+
+#define AES_OP_ENCRYPT          0
+#define AES_OP_DECRYPT          1
+#define SIZE_AES_BLOCK          (AES128_KEY_LENGTH)
+
+struct npcm_aes_regs {
+	unsigned char reserved_0[0x400];    // 0x000
+	unsigned int aes_key_0;             // 0x400
+	unsigned int aes_key_1;             // 0x404
+	unsigned int aes_key_2;             // 0x408
+	unsigned int aes_key_3;             // 0x40c
+	unsigned char reserved_1[0x30];     // 0x410
+	unsigned int aes_iv_0;              // 0x440
+	unsigned char reserved_2[0x1c];     // 0x444
+	unsigned int aes_ctr_0;             // 0x460
+	unsigned char reserved_3[0x0c];     // 0x464
+	unsigned int aes_busy;              // 0x470
+	unsigned char reserved_4[0x04];     // 0x474
+	unsigned int aes_sk;                // 0x478
+	unsigned char reserved_5[0x14];     // 0x47c
+	unsigned int aes_prev_iv_0;         // 0x490
+	unsigned char reserved_6[0x0c];     // 0x494
+	unsigned int aes_din_dout;          // 0x4a0
+	unsigned char reserved_7[0x1c];     // 0x4a4
+	unsigned int aes_control;           // 0x4c0
+	unsigned int aes_version;           // 0x4c4
+	unsigned int aes_hw_flags;          // 0x4c8
+	unsigned char reserved_8[0x28];     // 0x4cc
+	unsigned int aes_sw_reset;          // 0x4f4
+	unsigned char reserved_9[0x08];     // 0x4f8
+	unsigned int aes_fifo_data;         // 0x500
+	unsigned char reserved_10[0xfc];    // 0x504
+	unsigned int aes_fifo_status;       // 0x600
+};
+
+#define AES_BUSY_BIT            BIT(0)
+#define SW_RESET_BIT            BIT(0)
+#define AES_SK_BIT              BIT(0)
+
+#define DIN_FIFO_FULL           BIT(0)
+#define DIN_FIFO_EMPTY          BIT(1)
+#define DOUT_FIFO_FULL          BIT(2)
+#define DOUT_FIFO_EMPTY         BIT(3)
+#define DIN_FIFO_OVERFLOW       BIT(4)
+#define DOUT_FIFO_UNDERFLOW     BIT(5)
+
+int npcm_aes_select_key(u8 fkeyind);
+
+#endif