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diff --git a/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/efc.c b/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/efc.c
deleted file mode 100644
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--- a/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/efc.c
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-/* ---------------------------------------------------------------------------- */
-/* Atmel Microcontroller Software Support */
-/* SAM Software Package License */
-/* ---------------------------------------------------------------------------- */
-/* Copyright (c) 2015, Atmel Corporation */
-/* */
-/* All rights reserved. */
-/* */
-/* Redistribution and use in source and binary forms, with or without */
-/* modification, are permitted provided that the following condition is met: */
-/* */
-/* - Redistributions of source code must retain the above copyright notice, */
-/* this list of conditions and the disclaimer below. */
-/* */
-/* Atmel's name may not be used to endorse or promote products derived from */
-/* this software without specific prior written permission. */
-/* */
-/* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */
-/* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */
-/* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */
-/* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */
-/* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */
-/* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */
-/* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */
-/* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */
-/* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
-/* ---------------------------------------------------------------------------- */
-
-/** \addtogroup efc_module Working with EEFC
- * \ingroup peripherals_module
- *
- * The EEFC driver provides the interface to configure and use the EEFC
- * peripheral.
- *
- * The user needs to set the number of wait states depending on the frequency
- * used.\n
- * Configure number of cycles for flash read/write operations in the FWS field
- * of EEFC_FMR.
- *
- * It offers a function to send flash command to EEFC and waits for the
- * flash to be ready.
- *
- * To send flash command, the user could do in either of following way:
- * <ul>
- * <li>Write a correct key, command and argument in EEFC_FCR. </li>
- * <li>Or, Use IAP (In Application Programming) function which is executed from
- * ROM directly, this allows flash programming to be done by code running in
- * flash.</li>
- * <li>Once the command is achieved, it can be detected even by polling
- * EEFC_FSR or interrupt.
- * </ul>
- *
- * The command argument could be a page number,GPNVM number or nothing, it
- * depends on the command itself. Some useful functions in this driver could
- * help user translate physical flash address into a page number and vice verse.
- *
- * For more accurate information, please look at the EEFC section of the
- * Datasheet.
- *
- * Related files :\n
- * \ref efc.c\n
- * \ref efc.h.\n
- */
-/*@{*/
-/*@}*/
-
-
-/**
- * \file
- *
- * Implementation of Enhanced Embedded Flash Controller (EEFC).
- *
- */
-
-
-/*----------------------------------------------------------------------------
- * Headers
- *----------------------------------------------------------------------------*/
-#include "chip.h"
-
-#include <assert.h>
-
-
-/*----------------------------------------------------------------------------
- * Macro
- *----------------------------------------------------------------------------*/
-#define EEFC_FCR_FCMD(value) ((EEFC_FCR_FCMD_Msk & ((value) << EEFC_FCR_FCMD_Pos)))
-
-/*----------------------------------------------------------------------------
- * Exported functions
- *----------------------------------------------------------------------------*/
-
-extern void EFC_WriteFMR(Efc *efc, uint32_t dwFmr);
-
-#ifdef __ICCARM__
- extern __ramfunc void EFC_WriteFMR(Efc *efc, uint32_t dwFmr)
-#else
- __attribute__ ((section (".ramfunc")))
- extern void EFC_WriteFMR(Efc *efc, uint32_t dwFmr)
-#endif
-{
- efc->EEFC_FMR = dwFmr;
-}
-
-/**
- * \brief Enables the flash ready interrupt source on the EEFC peripheral.
- *
- * \param efc Pointer to a Efc instance
- */
-extern void EFC_EnableFrdyIt(Efc *efc)
-{
- uint32_t dwFmr;
-
- dwFmr = efc->EEFC_FMR |= EEFC_FMR_FRDY;
- EFC_WriteFMR(efc, dwFmr);
-}
-
-/**
- * \brief Disables the flash ready interrupt source on the EEFC peripheral.
- *
- * \param efc Pointer to a Efc instance
- */
-extern void EFC_DisableFrdyIt(Efc *efc)
-{
- uint32_t dwFmr;
-
- dwFmr = efc->EEFC_FMR & (~EEFC_FMR_FRDY);
- EFC_WriteFMR(efc, dwFmr);
-}
-
-
-/**
- * \brief Set read/write wait state on the EEFC peripheral.
- *
- * \param efc Pointer to a Efc instance
- * \param cycles the number of wait states in cycle.
- */
-extern void EFC_SetWaitState(Efc *efc, uint8_t ucCycles)
-{
- uint32_t dwFmr;
-
- dwFmr = efc->EEFC_FMR;
- dwFmr &= ~((uint32_t)EEFC_FMR_FWS_Msk);
- dwFmr |= EEFC_FMR_FWS(ucCycles);
- EFC_WriteFMR(efc, dwFmr);
-}
-
-/**
- * \brief Returns the current status of the EEFC.
- *
- * \note Keep in mind that this function clears the value of some status bits
- * (LOCKE, PROGE).
- *
- * \param efc Pointer to a Efc instance
- */
-extern uint32_t EFC_GetStatus(Efc *efc)
-{
- return efc->EEFC_FSR;
-}
-
-/**
- * \brief Returns the result of the last executed command.
- *
- * \param efc Pointer to a Efc instance
- */
-extern uint32_t EFC_GetResult(Efc *efc)
-{
- return efc->EEFC_FRR;
-}
-
-/**
- * \brief Translates the given address page and offset values.
- * \note The resulting values are stored in the provided variables if they are
- * not null.
- *
- * \param efc Pointer to a Efc instance
- * \param address Address to translate.
- * \param pPage First page accessed.
- * \param pOffset Byte offset in first page.
- */
-extern void EFC_TranslateAddress(Efc **ppEfc, uint32_t dwAddress,
- uint16_t *pwPage,
- uint16_t *pwOffset)
-{
- assert(dwAddress >= IFLASH_ADDR);
- assert(dwAddress <= (IFLASH_ADDR + IFLASH_SIZE));
-
- /* Store values */
- if (ppEfc)
- *ppEfc = EFC;
-
- if (pwPage)
- *pwPage = (dwAddress - IFLASH_ADDR) / IFLASH_PAGE_SIZE;
-
- if (pwOffset) {
- *pwOffset = (dwAddress - IFLASH_ADDR) % IFLASH_PAGE_SIZE;;
- }
-}
-
-
-/**
- * \brief Computes the address of a flash access given the page and offset.
- *
- * \param efc Pointer to a Efc instance
- * \param page Page number.
- * \param offset Byte offset inside page.
- * \param pAddress Computed address (optional).
- */
-extern void EFC_ComputeAddress(Efc *efc, uint16_t wPage, uint16_t wOffset,
- uint32_t *pdwAddress)
-{
- uint32_t dwAddress;
-
- /* Stop warning */
- efc = efc;
-
- assert(efc);
- assert(wPage <= IFLASH_NB_OF_PAGES);
- assert(wOffset < IFLASH_PAGE_SIZE);
- dwAddress = IFLASH_ADDR + wPage * IFLASH_PAGE_SIZE + wOffset;
-
- /* Store result */
- if (pdwAddress != NULL)
- *pdwAddress = dwAddress;
-}
-
-/**
- * \brief Performs the given command and wait until its completion (or an error).
- *
- * \param efc Pointer to a Efc instance
- * \param command Command to perform.
- * \param argument Optional command argument.
- *
- * \return 0 if successful, otherwise returns an error code.
- */
-
-extern uint32_t EFC_PerformCommand(Efc *efc, uint32_t dwCommand,
- uint32_t dwArgument, uint32_t dwUseIAP)
-{
- if (dwUseIAP != 0) {
- /* Pointer on IAP function in ROM */
- static uint32_t (*IAP_PerformCommand)(uint32_t, uint32_t);
-
- IAP_PerformCommand = (uint32_t (*)(uint32_t, uint32_t))
- * ((uint32_t *)CHIP_FLASH_IAP_ADDRESS);
-
- if (efc == EFC) {
- IAP_PerformCommand(0, EEFC_FCR_FKEY_PASSWD | EEFC_FCR_FARG(dwArgument)
- | EEFC_FCR_FCMD(dwCommand));
- }
-
- return (efc->EEFC_FSR & (EEFC_FSR_FLOCKE | EEFC_FSR_FCMDE | EEFC_FSR_FLERR));
- } else {
- uint32_t dwStatus;
-
- efc->EEFC_FCR = EEFC_FCR_FKEY_PASSWD | EEFC_FCR_FARG(dwArgument)
- | EEFC_FCR_FCMD(dwCommand);
-
- do {
- dwStatus = efc->EEFC_FSR;
- } while ((dwStatus & EEFC_FSR_FRDY) != EEFC_FSR_FRDY);
-
- return (dwStatus & (EEFC_FSR_FLOCKE | EEFC_FSR_FCMDE | EEFC_FSR_FLERR));
- }
-}
-
-/**
- * \brief Set flash access mode.
- *
- * \param dwMode - 0:128-bit, (1<<24):64-bit
- */
-extern void EFC_SetFlashAccessMode(Efc *efc, uint32_t dwMode)
-{
- uint32_t dwFmr;
-
- dwFmr = dwMode;
- EFC_WriteFMR(efc, dwFmr);
-}
-
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