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diff --git a/platform/ext/target/nxp/common/Native_Driver/drivers/fsl_casper.h b/platform/ext/target/nxp/common/Native_Driver/drivers/fsl_casper.h
deleted file mode 100755
index 6191b585b1..0000000000
--- a/platform/ext/target/nxp/common/Native_Driver/drivers/fsl_casper.h
+++ /dev/null
@@ -1,312 +0,0 @@
-/*
- * Copyright 2018-2019 NXP
- * All rights reserved.
- *
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#ifndef _FSL_CASPER_H_
-#define _FSL_CASPER_H_
-
-#include "fsl_common.h"
-
-/*! @file */
-
-/*******************************************************************************
- * Definitions
- *******************************************************************************/
-
-/*!
- * @addtogroup casper_driver
- * @{
- */
-/*! @name Driver version */
-/*@{*/
-/*! @brief CASPER driver version. Version 2.0.5.
- *
- * Current version: 2.0.5
- *
- * Change log:
- * - Version 2.0.0
- * - Initial version
- * - Version 2.0.1
- * - Bug fix KPSDK-24531 double_scalar_multiplication() result may be all zeroes for some specific input
- * - Version 2.0.2
- * - Bug fix KPSDK-25015 CASPER_MEMCPY hard-fault on LPC55xx when both source and destination buffers are outside of
- * CASPER_RAM
- * - Version 2.0.3
- * - Bug fix KPSDK-28107 RSUB, FILL and ZERO operations not implemented in enum _casper_operation.
- * - Version 2.0.4
- * - For GCC compiler, enforce O1 optimize level, specifically to remove strict-aliasing option.
- * This driver is very specific and requires -fno-strict-aliasing.
- * - Version 2.0.5
- * - Fix sign-compare warning.
- */
-#define FSL_CASPER_DRIVER_VERSION (MAKE_VERSION(2, 0, 5))
-/*@}*/
-
-/*! @brief CASPER operation
- *
- */
-typedef enum _casper_operation
-{
- kCASPER_OpMul6464NoSum = 0x01, /*! Walking 1 or more of J loop, doing r=a*b using 64x64=128*/
- kCASPER_OpMul6464Sum =
- 0x02, /*! Walking 1 or more of J loop, doing c,r=r+a*b using 64x64=128, but assume inner j loop*/
- kCASPER_OpMul6464FullSum =
- 0x03, /*! Walking 1 or more of J loop, doing c,r=r+a*b using 64x64=128, but sum all of w. */
- kCASPER_OpMul6464Reduce =
- 0x04, /*! Walking 1 or more of J loop, doing c,r[-1]=r+a*b using 64x64=128, but skip 1st write*/
- kCASPER_OpAdd64 = 0x08, /*! Walking add with off_AB, and in/out off_RES doing c,r=r+a+c using 64+64=65*/
- kCASPER_OpSub64 = 0x09, /*! Walking subtract with off_AB, and in/out off_RES doing r=r-a using 64-64=64, with last
- borrow implicit if any*/
- kCASPER_OpDouble64 = 0x0A, /*! Walking add to self with off_RES doing c,r=r+r+c using 64+64=65*/
- kCASPER_OpXor64 = 0x0B, /*! Walking XOR with off_AB, and in/out off_RES doing r=r^a using 64^64=64*/
- kCASPER_OpRSub64 = 0x0C, /*! Walking subtract with off_AB, and in/out off_RES using r=a-r */
- kCASPER_OpShiftLeft32 =
- 0x10, /*! Walking shift left doing r1,r=(b*D)|r1, where D is 2^amt and is loaded by app (off_CD not used)*/
- kCASPER_OpShiftRight32 = 0x11, /*! Walking shift right doing r,r1=(b*D)|r1, where D is 2^(32-amt) and is loaded by
- app (off_CD not used) and off_RES starts at MSW*/
- kCASPER_OpCopy = 0x14, /*! Copy from ABoff to resoff, 64b at a time*/
- kCASPER_OpRemask = 0x15, /*! Copy and mask from ABoff to resoff, 64b at a time*/
- kCASPER_OpFill = 0x16, /*! Fill RESOFF using 64 bits at a time with value in A and B */
- kCASPER_OpZero = 0x17, /*! Fill RESOFF using 64 bits at a time of 0s */
- kCASPER_OpCompare = 0x18, /*! Compare two arrays, running all the way to the end*/
- kCASPER_OpCompareFast = 0x19, /*! Compare two arrays, stopping on 1st !=*/
-} casper_operation_t;
-
-#define CASPER_CP 1
-#define CASPER_CP_CTRL0 (0x0 >> 2)
-#define CASPER_CP_CTRL1 (0x4 >> 2)
-#define CASPER_CP_LOADER (0x8 >> 2)
-#define CASPER_CP_STATUS (0xC >> 2)
-#define CASPER_CP_INTENSET (0x10 >> 2)
-#define CASPER_CP_INTENCLR (0x14 >> 2)
-#define CASPER_CP_INTSTAT (0x18 >> 2)
-#define CASPER_CP_AREG (0x20 >> 2)
-#define CASPER_CP_BREG (0x24 >> 2)
-#define CASPER_CP_CREG (0x28 >> 2)
-#define CASPER_CP_DREG (0x2C >> 2)
-#define CASPER_CP_RES0 (0x30 >> 2)
-#define CASPER_CP_RES1 (0x34 >> 2)
-#define CASPER_CP_RES2 (0x38 >> 2)
-#define CASPER_CP_RES3 (0x3C >> 2)
-#define CASPER_CP_MASK (0x60 >> 2)
-#define CASPER_CP_REMASK (0x64 >> 2)
-#define CASPER_CP_LOCK (0x80 >> 2)
-#define CASPER_CP_ID (0xFFC >> 2)
-/* mcr (cp, opc1, value, CRn, CRm, opc2) */
-#define CASPER_Wr32b(value, off) __arm_mcr(CASPER_CP, 0, value, ((off >> 4)), (off), 0)
-/* mcrr(coproc, opc1, value, CRm) */
-#define CASPER_Wr64b(value, off) __arm_mcrr(CASPER_CP, 0, value, off)
-/* mrc(coproc, opc1, CRn, CRm, opc2) */
-#define CASPER_Rd32b(off) __arm_mrc(CASPER_CP, 0, ((off >> 4)), (off), 0)
-
-/* The model for this algo is that it can be implemented for a fixed size RSA key */
-/* for max speed. If this is made into a variable (to allow varying size), then */
-/* it will be slower by a bit. */
-/* The file is compiled with N_bitlen passed in as number of bits of the RSA key */
-/* #define N_bitlen 2048 */
-#define N_wordlen_max (4096 / 32)
-
-#define CASPER_ECC_P256 1
-#define CASPER_ECC_P384 0
-
-#if CASPER_ECC_P256
-#define N_bitlen 256
-#endif /* CASPER_ECC_P256 */
-
-#if CASPER_ECC_P384
-#define N_bitlen 384
-#endif /* CASPER_ECC_P256 */
-
-#define NUM_LIMBS (N_bitlen / 32)
-
-enum
-{
- kCASPER_RamOffset_Result = 0x0u,
- kCASPER_RamOffset_Base = (N_wordlen_max + 8u),
- kCASPER_RamOffset_TempBase = (2u * N_wordlen_max + 16u),
- kCASPER_RamOffset_Modulus = (kCASPER_RamOffset_TempBase + N_wordlen_max + 4u),
- kCASPER_RamOffset_M64 = 1022,
-};
-
-/*! @} */
-
-/*******************************************************************************
- * API
- ******************************************************************************/
-#if defined(__cplusplus)
-extern "C" {
-#endif
-
-/*!
- * @addtogroup casper_driver
- * @{
- */
-
-/*!
- * @brief Enables clock and disables reset for CASPER peripheral.
- *
- * Enable clock and disable reset for CASPER.
- *
- * @param base CASPER base address
- */
-void CASPER_Init(CASPER_Type *base);
-
-/*!
- * @brief Disables clock for CASPER peripheral.
- *
- * Disable clock and enable reset.
- *
- * @param base CASPER base address
- */
-void CASPER_Deinit(CASPER_Type *base);
-
-/*!
- *@}
- */ /* end of casper_driver */
-
-/*******************************************************************************
- * PKHA API
- ******************************************************************************/
-
-/*!
- * @addtogroup casper_driver_pkha
- * @{
- */
-
-/*!
- * @brief Performs modular exponentiation - (A^E) mod N.
- *
- * This function performs modular exponentiation.
- *
- * @param base CASPER base address
- * @param signature first addend (in little endian format)
- * @param pubN modulus (in little endian format)
- * @param wordLen Size of pubN in bytes
- * @param pubE exponent
- * @param[out] plaintext Output array to store result of operation (in little endian format)
- */
-void CASPER_ModExp(CASPER_Type *base,
- const uint8_t *signature,
- const uint8_t *pubN,
- size_t wordLen,
- uint32_t pubE,
- uint8_t *plaintext);
-
-void CASPER_ecc_init(void);
-
-/*!
- * @brief Performs ECC secp256r1 point single scalar multiplication
- *
- * This function performs ECC secp256r1 point single scalar multiplication
- * [resX; resY] = scalar * [X; Y]
- * Coordinates are affine in normal form, little endian.
- * Scalars are little endian.
- * All arrays are little endian byte arrays, uint32_t type is used
- * only to enforce the 32-bit alignment (0-mod-4 address).
- *
- * @param base CASPER base address
- * @param[out] resX Output X affine coordinate in normal form, little endian.
- * @param[out] resY Output Y affine coordinate in normal form, little endian.
- * @param X Input X affine coordinate in normal form, little endian.
- * @param Y Input Y affine coordinate in normal form, little endian.
- * @param scalar Input scalar integer, in normal form, little endian.
- */
-void CASPER_ECC_SECP256R1_Mul(
- CASPER_Type *base, uint32_t resX[8], uint32_t resY[8], uint32_t X[8], uint32_t Y[8], uint32_t scalar[8]);
-
-/*!
- * @brief Performs ECC secp256r1 point double scalar multiplication
- *
- * This function performs ECC secp256r1 point double scalar multiplication
- * [resX; resY] = scalar1 * [X1; Y1] + scalar2 * [X2; Y2]
- * Coordinates are affine in normal form, little endian.
- * Scalars are little endian.
- * All arrays are little endian byte arrays, uint32_t type is used
- * only to enforce the 32-bit alignment (0-mod-4 address).
- *
- * @param base CASPER base address
- * @param[out] resX Output X affine coordinate.
- * @param[out] resY Output Y affine coordinate.
- * @param X1 Input X1 affine coordinate.
- * @param Y1 Input Y1 affine coordinate.
- * @param scalar1 Input scalar1 integer.
- * @param X2 Input X2 affine coordinate.
- * @param Y2 Input Y2 affine coordinate.
- * @param scalar2 Input scalar2 integer.
- */
-void CASPER_ECC_SECP256R1_MulAdd(CASPER_Type *base,
- uint32_t resX[8],
- uint32_t resY[8],
- uint32_t X1[8],
- uint32_t Y1[8],
- uint32_t scalar1[8],
- uint32_t X2[8],
- uint32_t Y2[8],
- uint32_t scalar2[8]);
-
-/*!
- * @brief Performs ECC secp384r1 point single scalar multiplication
- *
- * This function performs ECC secp384r1 point single scalar multiplication
- * [resX; resY] = scalar * [X; Y]
- * Coordinates are affine in normal form, little endian.
- * Scalars are little endian.
- * All arrays are little endian byte arrays, uint32_t type is used
- * only to enforce the 32-bit alignment (0-mod-4 address).
- *
- * @param base CASPER base address
- * @param[out] resX Output X affine coordinate in normal form, little endian.
- * @param[out] resY Output Y affine coordinate in normal form, little endian.
- * @param X Input X affine coordinate in normal form, little endian.
- * @param Y Input Y affine coordinate in normal form, little endian.
- * @param scalar Input scalar integer, in normal form, little endian.
- */
-void CASPER_ECC_SECP384R1_Mul(
- CASPER_Type *base, uint32_t resX[12], uint32_t resY[12], uint32_t X[12], uint32_t Y[12], uint32_t scalar[12]);
-
-/*!
- * @brief Performs ECC secp384r1 point double scalar multiplication
- *
- * This function performs ECC secp384r1 point double scalar multiplication
- * [resX; resY] = scalar1 * [X1; Y1] + scalar2 * [X2; Y2]
- * Coordinates are affine in normal form, little endian.
- * Scalars are little endian.
- * All arrays are little endian byte arrays, uint32_t type is used
- * only to enforce the 32-bit alignment (0-mod-4 address).
- *
- * @param base CASPER base address
- * @param[out] resX Output X affine coordinate.
- * @param[out] resY Output Y affine coordinate.
- * @param X1 Input X1 affine coordinate.
- * @param Y1 Input Y1 affine coordinate.
- * @param scalar1 Input scalar1 integer.
- * @param X2 Input X2 affine coordinate.
- * @param Y2 Input Y2 affine coordinate.
- * @param scalar2 Input scalar2 integer.
- */
-void CASPER_ECC_SECP384R1_MulAdd(CASPER_Type *base,
- uint32_t resX[12],
- uint32_t resY[12],
- uint32_t X1[12],
- uint32_t Y1[12],
- uint32_t scalar1[12],
- uint32_t X2[12],
- uint32_t Y2[12],
- uint32_t scalar2[12]);
-
-void CASPER_ECC_equal(int *res, uint32_t *op1, uint32_t *op2);
-void CASPER_ECC_equal_to_zero(int *res, uint32_t *op1);
-
-/*!
- *@}
- */ /* end of casper_driver_pkha */
-
-#if defined(__cplusplus)
-}
-#endif
-
-#endif /* _FSL_CASPER_H_ */