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diff --git a/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/spi.c b/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/spi.c
deleted file mode 100644
index 4b6896f89f..0000000000
--- a/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/spi.c
+++ /dev/null
@@ -1,282 +0,0 @@
-/* ---------------------------------------------------------------------------- */
-/* 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 spi_module Working with SPI
- * The SPI driver provides the interface to configure and use the SPI
- * peripheral.
- *
- * The Serial Peripheral Interface (SPI) circuit is a synchronous serial
- * data link that provides communication with external devices in Master
- * or Slave Mode.
- *
- * To use the SPI, the user has to follow these few steps:
- * -# Enable the SPI pins required by the application (see pio.h).
- * -# Configure the SPI using the \ref SPI_Configure(). This enables the
- * peripheral clock. The mode register is loaded with the given value.
- * -# Configure all the necessary chip selects with \ref SPI_ConfigureNPCS().
- * -# Enable the SPI by calling \ref SPI_Enable().
- * -# Send/receive data using \ref SPI_Write() and \ref SPI_Read(). Note that
- * \ref SPI_Read()
- * must be called after \ref SPI_Write() to retrieve the last value read.
- * -# Disable the SPI by calling \ref SPI_Disable().
- *
- * For more accurate information, please look at the SPI section of the
- * Datasheet.
- *
- * Related files :\n
- * \ref spi.c\n
- * \ref spi.h.\n
- */
-/*@{*/
-/*@}*/
-
-/**
- * \file
- *
- * Implementation of Serial Peripheral Interface (SPI) controller.
- *
- */
-
-/*----------------------------------------------------------------------------
- * Headers
- *----------------------------------------------------------------------------*/
-
-#include "chip.h"
-
-#include <stdint.h>
-
-/*----------------------------------------------------------------------------
- * Exported functions
- *----------------------------------------------------------------------------*/
-
-/**
- * \brief Enables a SPI peripheral.
- *
- * \param spi Pointer to an SPI instance.
- */
-extern void SPI_Enable(Spi *spi)
-{
- spi->SPI_CR = SPI_CR_SPIEN;
-}
-
-/**
- * \brief Disables a SPI peripheral.
- *
- * \param spi Pointer to an SPI instance.
- */
-extern void SPI_Disable(Spi *spi)
-{
- spi->SPI_CR = SPI_CR_SPIDIS;
-}
-
-/**
- * \brief Enables one or more interrupt sources of a SPI peripheral.
- *
- * \param spi Pointer to an SPI instance.
- * \param sources Bitwise OR of selected interrupt sources.
- */
-extern void SPI_EnableIt(Spi *spi, uint32_t dwSources)
-{
- spi->SPI_IER = dwSources;
-}
-
-/**
- * \brief Disables one or more interrupt sources of a SPI peripheral.
- *
- * \param spi Pointer to an SPI instance.
- * \param sources Bitwise OR of selected interrupt sources.
- */
-extern void SPI_DisableIt(Spi *spi, uint32_t dwSources)
-{
- spi->SPI_IDR = dwSources;
-}
-
-/**
- * \brief Configures a SPI peripheral as specified. The configuration can be
- * computed using several macros (see \ref spi_configuration_macros).
- *
- * \param spi Pointer to an SPI instance.
- * \param id Peripheral ID of the SPI.
- * \param configuration Value of the SPI configuration register.
- */
-extern void SPI_Configure(Spi *spi, uint32_t dwId, uint32_t dwConfiguration)
-{
- PMC_EnablePeripheral(dwId);
-
- spi->SPI_CR = SPI_CR_SPIDIS;
-
- /* Execute a software reset of the SPI twice */
- spi->SPI_CR = SPI_CR_SWRST;
- spi->SPI_CR = SPI_CR_SWRST;
- spi->SPI_MR = dwConfiguration;
-}
-
-/**
- * \brief Configures SPI chip select.
- *
- * \param spi Pointer to an SPI instance.
- * \param cS Chip select of NPSCx.
- */
-extern void SPI_ChipSelect(Spi *spi, uint8_t cS)
-{
- spi->SPI_MR |= SPI_MR_PCS_Msk;
- spi->SPI_MR &= ~(SPI_MR_PCS (cS));
-}
-
-/**
- * \brief Configures SPI Mode Register.
- *
- * \param spi Pointer to an SPI instance.
- * \param configuration Value of the SPI mode register.
- */
-extern void SPI_SetMode(Spi *spi,
- uint32_t dwConfiguration)
-{
- spi->SPI_MR = dwConfiguration;
-}
-
-/**
- * \brief Configures SPI to release last used CS line.
- *
- * \param spi Pointer to an SPI instance.
- */
-extern void SPI_ReleaseCS(Spi *spi)
-{
- spi->SPI_CR = SPI_CR_LASTXFER;
-}
-
-
-/**
- * \brief Configures a chip select of a SPI peripheral. The chip select
- * configuration is computed using several macros
- * (see \ref spi_configuration_macros).
- *
- * \param spi Pointer to an SPI instance.
- * \param npcs Chip select to configure (0, 1, 2 or 3).
- * \param configuration Desired chip select configuration.
- */
-void SPI_ConfigureNPCS(Spi *spi, uint32_t dwNpcs, uint32_t dwConfiguration)
-{
- spi->SPI_CSR[dwNpcs] = dwConfiguration;
-}
-
-/**
- * \brief Configures a chip select active mode of a SPI peripheral.
- *
- * \param spi Pointer to an SPI instance.
- * \param dwNpcs Chip select to configure (0, 1, 2 or 3).
- * \param bReleaseOnLast CS controlled by last transfer.
- * SPI_ReleaseCS() is used to release CS.
- */
-void SPI_ConfigureCSMode(Spi *spi, uint32_t dwNpcs, uint32_t bReleaseOnLast)
-{
- if (bReleaseOnLast)
- spi->SPI_CSR[dwNpcs] |= SPI_CSR_CSAAT;
- else
- spi->SPI_CSR[dwNpcs] &= ~SPI_CSR_CSAAT;
-}
-
-/**
- * \brief Get the current status register of the given SPI peripheral.
- * \note This resets the internal value of the status register, so further
- * read may yield different values.
- * \param spi Pointer to a Spi instance.
- * \return SPI status register.
- */
-extern uint32_t SPI_GetStatus(Spi *spi)
-{
- return spi->SPI_SR;
-}
-
-/**
- * \brief Reads and returns the last word of data received by a SPI peripheral.
- * This method must be called after a successful SPI_Write call.
- *
- * \param spi Pointer to an Spi instance.
- *
- * \return read data.
- */
-extern uint32_t SPI_Read(Spi *spi)
-{
- while ((spi->SPI_SR & SPI_SR_RDRF) == 0);
-
- return spi->SPI_RDR & 0xFFFF;
-}
-
-/**
- * \brief Sends data through a SPI peripheral. If the SPI is configured to use a
- * fixed peripheral select, the npcs value is meaningless. Otherwise,
- * it identifies the component which shall be addressed.
- *
- * \param spi Pointer to an SPI instance.
- * \param npcs Chip select of the component to address (0, 1, 2 or 3).
- * \param data Word of data to send.
- */
-extern void SPI_Write(Spi *spi, uint32_t dwNpcs, uint16_t wData)
-{
- /* Send data */
- while ((spi->SPI_SR & SPI_SR_TXEMPTY) == 0);
-
- spi->SPI_TDR = wData | SPI_PCS(dwNpcs);
-
- while ((spi->SPI_SR & SPI_SR_TDRE) == 0);
-}
-
-/**
- * \brief Sends last data through a SPI peripheral.
- * If the SPI is configured to use a fixed peripheral select, the npcs value is
- * meaningless. Otherwise, it identifies the component which shall be addressed.
- *
- * \param spi Pointer to an SPI instance.
- * \param npcs Chip select of the component to address (0, 1, 2 or 3).
- * \param data Word of data to send.
- */
-extern void SPI_WriteLast(Spi *spi, uint32_t dwNpcs, uint16_t wData)
-{
- /* Send data */
- while ((spi->SPI_SR & SPI_SR_TXEMPTY) == 0);
-
- spi->SPI_TDR = wData | SPI_PCS(dwNpcs) | SPI_TDR_LASTXFER;
-
- while ((spi->SPI_SR & SPI_SR_TDRE) == 0);
-}
-
-/**
- * \brief Check if SPI transfer finish.
- *
- * \param spi Pointer to an SPI instance.
- *
- * \return Returns 1 if there is no pending write operation on the SPI;
- * otherwise returns 0.
- */
-extern uint32_t SPI_IsFinished(Spi *spi)
-{
- return ((spi->SPI_SR & SPI_SR_TXEMPTY) != 0);
-}
-
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