diff --git a/platform/zoul/fs/fat/diskio.c b/platform/zoul/fs/fat/diskio.c
new file mode 100644
index 000000000..f0b457ca8
--- /dev/null
+++ b/platform/zoul/fs/fat/diskio.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2016, Benoît Thébaudeau <benoit@wsystem.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 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 remote-fat
+ * @{
+ *
+ * \file
+ * Implementation of the default port of FatFs on RE-Mote.
+ */
+#include "diskio.h"
+#include "mmc.h"
+#include "rtcc.h"
+
+/*----------------------------------------------------------------------------*/
+DSTATUS __attribute__((__weak__))
+disk_status(BYTE pdrv)
+{
+  return ~mmc_driver.status(pdrv);
+}
+/*----------------------------------------------------------------------------*/
+DSTATUS __attribute__((__weak__))
+disk_initialize(BYTE pdrv)
+{
+  return ~mmc_driver.initialize(pdrv);
+}
+/*----------------------------------------------------------------------------*/
+DRESULT __attribute__((__weak__))
+disk_read(BYTE pdrv, BYTE *buff, DWORD sector, UINT count)
+{
+  return mmc_driver.read(pdrv, buff, sector, count);
+}
+/*----------------------------------------------------------------------------*/
+DRESULT __attribute__((__weak__))
+disk_write(BYTE pdrv, const BYTE *buff, DWORD sector, UINT count)
+{
+  return mmc_driver.write(pdrv, buff, sector, count);
+}
+/*----------------------------------------------------------------------------*/
+DRESULT __attribute__((__weak__))
+disk_ioctl(BYTE pdrv, BYTE cmd, void *buff)
+{
+  return mmc_driver.ioctl(pdrv, cmd, buff);
+}
+/*----------------------------------------------------------------------------*/
+DWORD __attribute__((__weak__))
+get_fattime(void)
+{
+  simple_td_map td;
+
+  return rtcc_get_time_date(&td) == AB08_SUCCESS ?
+    (2000 + td.years - 1980) << 25 | td.months << 21 | td.day << 16 |
+    td.hours << 11 | td.minutes << 5 | td.seconds : 0;
+}
+/*----------------------------------------------------------------------------*/
+
+/** @} */
diff --git a/platform/zoul/fs/fat/ffconf.h b/platform/zoul/fs/fat/ffconf.h
new file mode 100644
index 000000000..38f529709
--- /dev/null
+++ b/platform/zoul/fs/fat/ffconf.h
@@ -0,0 +1,418 @@
+/*
+ * Copyright (c) 2016, Benoît Thébaudeau <benoit@wsystem.com>
+ * All rights reserved.
+ *
+ * Based on the FatFs Module,
+ * Copyright (c) 2016, ChaN
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 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 remote
+ * @{
+ *
+ * \defgroup remote-fat RE-Mote FatFs
+ *
+ * Default port of FatFs on RE-Mote.
+ * @{
+ *
+ * \file
+ * Header file configuring FatFs for RE-Mote.
+ */
+#ifndef FFCONF_H_
+#define FFCONF_H_
+
+#include "contiki-conf.h"
+
+#define _FFCONF 68020 /**< Revision ID */
+
+/*----------------------------------------------------------------------------*/
+/** \name Function Configuration
+ * @{
+ */
+
+#ifndef _FS_READONLY
+/** This option switches the read-only configuration
+ * (\c 0: read/write or \c 1: read-only).
+ *
+ * The read-only configuration removes the writing functions from the API:
+ * \c f_write(), \c f_sync(), \c f_unlink(), \c f_mkdir(), \c f_chmod(),
+ * \c f_rename(), \c f_truncate(), \c f_getfree(), and optional writing
+ * functions as well.
+ */
+#define _FS_READONLY    0
+#endif
+
+#ifndef _FS_MINIMIZE
+/** This option defines the minimization level to remove some basic API
+ * functions.
+ *
+ * \c 0: All the basic functions are enabled.
+ * \c 1: \c f_stat(), \c f_getfree(), \c f_unlink(), \c f_mkdir(),
+ *       \c f_truncate(), and \c f_rename() are removed.
+ * \c 2: \c f_opendir(), \c f_readdir(), and \c f_closedir() are removed in
+ *       addition to \c 1.
+ * \c 3: \c f_lseek() is removed in addition to \c 2.
+ */
+#define _FS_MINIMIZE    0
+#endif
+
+#ifndef _USE_STRFUNC
+/** This option switches the string functions: \c f_gets(), \c f_putc(),
+ * \c f_puts(), and \c f_printf().
+ *
+ * \c 0: Disable string functions.
+ * \c 1: Enable without LF-CRLF conversion.
+ * \c 2: Enable with LF-CRLF conversion.
+ */
+#define _USE_STRFUNC    1
+#endif
+
+#ifndef _USE_FIND
+/** This option switches the filtered directory read functions: \c f_findfirst()
+ * and \c f_findnext() (\c 0: disable, \c 1: enable, \c 2: enable with matching
+ * \c altname[] too).
+ */
+#define _USE_FIND       1
+#endif
+
+#ifndef _USE_MKFS
+/** This option switches the \c f_mkfs() function
+ * (\c 0: disable or \c 1: enable).
+ */
+#define _USE_MKFS       1
+#endif
+
+#ifndef _USE_FASTSEEK
+/** This option switches the fast seek function
+ * (\c 0: disable or \c 1: enable).
+ */
+#define _USE_FASTSEEK   0
+#endif
+
+#ifndef _USE_EXPAND
+/** This option switches the \c f_expand() function
+ * (\c 0: disable or \c 1: enable).
+ */
+#define _USE_EXPAND     0
+#endif
+
+#ifndef _USE_CHMOD
+/** This option switches the attribute manipulation functions: \c f_chmod() and
+ * \c f_utime() (\c 0: disable or \c 1: enable). Also, \c _FS_READONLY needs to
+ * be \c 0 to enable this option.
+ */
+#define _USE_CHMOD      1
+#endif
+
+#ifndef _USE_LABEL
+/** This option switches the volume label functions: \c f_getlabel() and
+ * \c f_setlabel() (\c 0: disable or \c 1: enable).
+ */
+#define _USE_LABEL      1
+#endif
+
+#ifndef _USE_FORWARD
+/** This option switches the \c f_forward() function
+ * (\c 0: disable or \c 1: enable).
+ */
+#define _USE_FORWARD    0
+#endif
+
+/** @} */
+/*----------------------------------------------------------------------------*/
+/** \name Locale and Namespace Configuration
+ * @{
+ */
+
+#ifndef _CODE_PAGE
+/** This option specifies the OEM code page to be used on the target system.
+ * Incorrect setting of the code page can cause a file open failure.
+ *
+ * \c 1   - ASCII (no extended character, non-LFN cfg. only)
+ * \c 437 - U.S.
+ * \c 720 - Arabic
+ * \c 737 - Greek
+ * \c 771 - KBL
+ * \c 775 - Baltic
+ * \c 850 - Latin 1
+ * \c 852 - Latin 2
+ * \c 855 - Cyrillic
+ * \c 857 - Turkish
+ * \c 860 - Portuguese
+ * \c 861 - Icelandic
+ * \c 862 - Hebrew
+ * \c 863 - Canadian French
+ * \c 864 - Arabic
+ * \c 865 - Nordic
+ * \c 866 - Russian
+ * \c 869 - Greek 2
+ * \c 932 - Japanese (DBCS)
+ * \c 936 - Simplified Chinese (DBCS)
+ * \c 949 - Korean (DBCS)
+ * \c 950 - Traditional Chinese (DBCS)
+ */
+#define _CODE_PAGE      437
+#endif
+
+#ifndef _USE_LFN
+/** \c _USE_LFN switches the support of long file name (LFN).
+ *
+ * \c 0: Disable LFN support. \c _MAX_LFN has no effect.
+ * \c 1: Enable LFN with static working buffer on the BSS. Always thread-unsafe.
+ * \c 2: Enable LFN with dynamic working buffer on the STACK.
+ * \c 3: Enable LFN with dynamic working buffer on the HEAP.
+ *
+ * To enable LFN, the Unicode handling functions (<tt>option/unicode.c</tt>)
+ * must be added to the project. The working buffer occupies
+ * <tt>(_MAX_LFN + 1) * 2</tt> bytes, and 608 more bytes with exFAT enabled.
+ * \c _MAX_LFN can be in the range from 12 to 255. It should be set to 255 to
+ * support the full-featured LFN operations. When using the stack for the
+ * working buffer, take care of stack overflow. When using the heap memory for
+ * the working buffer, the memory management functions, \c ff_memalloc() and
+ * \c ff_memfree(), must be added to the project.
+ */
+#define _USE_LFN        3
+#endif
+#ifndef _MAX_LFN
+#define _MAX_LFN        255
+#endif
+
+#ifndef _LFN_UNICODE
+/** This option switches the character encoding in the API
+ * (\c 0: ANSI/OEM or \c 1: UTF-16).
+ *
+ * To use a Unicode string for the path name, enable LFN and set \c _LFN_UNICODE
+ * to \c 1.
+ * This option also affects the behavior of the string I/O functions.
+ */
+#define _LFN_UNICODE    0
+#endif
+
+#ifndef _STRF_ENCODE
+/** If \c _LFN_UNICODE is set to \c 1, this option selects the character
+ * encoding OF THE FILE to be read/written via the string I/O functions:
+ * \c f_gets(), \c f_putc(), \c f_puts(), and \c f_printf().
+ *
+ * \c 0: ANSI/OEM
+ * \c 1: UTF-16LE
+ * \c 2: UTF-16BE
+ * \c 3: UTF-8
+ *
+ * This option has no effect if \c _LFN_UNICODE is set to \c 0.
+ */
+#define _STRF_ENCODE    0
+#endif
+
+#ifndef _FS_RPATH
+/** This option configures the support of relative path.
+ *
+ * \c 0: Disable relative path and remove related functions.
+ * \c 1: Enable relative path. \c f_chdir() and \c f_chdrive() are available.
+ * \c 2: \c f_getcwd() is available in addition to \c 1.
+ */
+#define _FS_RPATH       2
+#endif
+
+/** @} */
+/*----------------------------------------------------------------------------*/
+/** \name Drive/Volume Configuration
+ * @{
+ */
+
+#ifndef _VOLUMES
+/** Number of volumes (logical drives) to be used. */
+#define _VOLUMES        1
+#endif
+
+#ifndef _STR_VOLUME_ID
+/** \c _STR_VOLUME_ID switches the string support of volume ID.
+ * If \c _STR_VOLUME_ID is set to \c 1, pre-defined strings can also be used as
+ * drive number in the path name. \c _VOLUME_STRS defines the drive ID strings
+ * for each logical drive. The number of items must be equal to \c _VOLUMES.
+ * The valid characters for the drive ID strings are: A-Z and 0-9.
+ */
+#define _STR_VOLUME_ID  0
+#endif
+#ifndef _VOLUME_STRS
+#define _VOLUME_STRS    "RAM","NAND","CF","SD","SD2","USB","USB2","USB3"
+#endif
+
+#ifndef _MULTI_PARTITION
+/** This option switches support of multi-partition on a physical drive.
+ * By default (0), each logical drive number is bound to the same physical drive
+ * number and only an FAT volume found on the physical drive will be mounted.
+ * When multi-partition is enabled (1), each logical drive number can be bound to
+ * arbitrary physical drive and partition listed in the VolToPart[]. Also f_fdisk()
+ * funciton will be available.
+ */
+#define _MULTI_PARTITION        0
+#endif
+
+#ifndef _MIN_SS
+/** These options configure the range of sector size to be supported (512, 1024,
+ * 2048, or 4096). Always set both to 512 for most systems, all types of memory
+ * cards and harddisk. But a larger value may be required for on-board flash
+ * memory and some types of optical media. When \c _MAX_SS is larger than
+ * \c _MIN_SS, FatFs is configured to variable sector size and the
+ * \c GET_SECTOR_SIZE command must be implemented in \c disk_ioctl().
+ */
+#define _MIN_SS         512
+#endif
+#ifndef _MAX_SS
+#define _MAX_SS         512
+#endif
+
+#ifndef _USE_TRIM
+/** This option switches the support of ATA-TRIM
+ * (\c 0: disable or \c 1: enable).
+ *
+ * To enable the Trim function, the \c CTRL_TRIM command should also be
+ * implemented in \c disk_ioctl().
+ */
+#define _USE_TRIM       0
+#endif
+
+#ifndef _FS_NOFSINFO
+/** If you need to know the correct free space on the FAT32 volume, set the bit
+ * 0 of this option, and the \c f_getfree() function will force a full FAT scan
+ * on the first time after a volume mount. The bit 1 controls the use of the
+ * last allocated cluster number.
+ *
+ * bit 0=0: Use the free cluster count in FSINFO if available.
+ * bit 0=1: Do not trust the free cluster count in FSINFO.
+ * bit 1=0: Use the last allocated cluster number in FSINFO if available.
+ * bit 1=1: Do not trust the last allocated cluster number in FSINFO.
+ */
+#define _FS_NOFSINFO    3
+#endif
+
+/** @} */
+/*----------------------------------------------------------------------------*/
+/** \name System Configuration
+ * @{
+ */
+
+#ifndef _FS_TINY
+/** This option switches the tiny buffer configuration
+ * (\c 0: normal or \c 1: tiny).
+ *
+ * With the tiny configuration, the size of a file object (FIL) is reduced to
+ * \c _MAX_SS bytes. Instead of the private sector buffer eliminated from the
+ * file object, a common sector buffer in the file system object (FATFS) is used
+ * for the file data transfer.
+ */
+#define _FS_TINY        0
+#endif
+
+#ifndef _FS_EXFAT
+/** This option switches the support of the exFAT file system
+ * (\c 0: disable or \c 1: enable).
+ *
+ * With exFAT enabled, LFN also needs to be enabled (\c _USE_LFN >= 1).
+ * Note that enabling exFAT discards C89 compatibility.
+ */
+#define _FS_EXFAT       1
+#endif
+
+#ifndef _FS_NORTC
+/** The option \c _FS_NORTC switches the timestamp function. If the system does
+ * not have any RTC function or if a valid timestamp is not needed, set
+ * \c _FS_NORTC to \c 1 to disable the timestamp function. All the objects
+ * modified by FatFs will have a fixed timestamp defined by \c _NORTC_MON,
+ * \c _NORTC_MDAY, and \c _NORTC_YEAR in local time.
+ * To enable the timestamp function (\c _FS_NORTC set to \c 0), \c get_fattime()
+ * needs to be added to the project to get the current time from a real-time
+ * clock. \c _NORTC_MON, \c _NORTC_MDAY, and \c _NORTC_YEAR have no effect.
+ * These options have no effect with a read-only configuration (\c _FS_READONLY
+ * set to \c 1).
+ */
+#define _FS_NORTC       (!RTC_CONF_INIT)
+#endif
+#ifndef _NORTC_MON
+#define _NORTC_MON      1
+#endif
+#ifndef _NORTC_MDAY
+#define _NORTC_MDAY     1
+#endif
+#ifndef _NORTC_YEAR
+#define _NORTC_YEAR     2016
+#endif
+
+#ifndef _FS_LOCK
+/** The option \c _FS_LOCK switches the file lock function controlling duplicate
+ * file open and illegal operations on the open objects. This option must be set
+ * to \c 0 if \c _FS_READONLY is \c 1.
+ *
+ * \c 0: Disable the file lock function. To avoid volume corruption, the
+ *       application program should avoid illegal open, remove, and rename on
+ *       the open objects.
+ * \c >0: Enable the file lock function. The value defines how many
+ *        files/sub-directories can be opened simultaneously under file lock
+ *        control. Note that the file lock control is independent of
+ *        re-entrancy.
+ */
+#define _FS_LOCK        0
+#endif
+
+#ifndef _FS_REENTRANT
+/** The option \c _FS_REENTRANT switches the re-entrancy (thread-safe) of the
+ * FatFs module itself. Note that, regardless of this option, file access to
+ * different volumes is always re-entrant, and the volume control functions,
+ * \c f_mount(), \c f_mkfs(), and \c f_fdisk(), are always non-re-entrant. Only
+ * file/directory access to the same volume is under control of this function.
+ *
+ * \c 0: Disable re-entrancy. \c _FS_TIMEOUT and \c _SYNC_t have no effect.
+ * \c 1: Enable re-entrancy. The user-provided synchronization handlers,
+ *       \c ff_req_grant(), \c ff_rel_grant(), \c ff_del_syncobj(), and
+ *       \c ff_cre_syncobj(), must also be added to the project. Samples are
+ *       available in <tt>option/syscall.c</tt>.
+ *
+ * \c _FS_TIMEOUT defines the timeout period in unit of time tick.
+ * \c _SYNC_t defines the OS-dependent sync object type, e.g. \c HANDLE, \c ID,
+ * \c OS_EVENT*, \c SemaphoreHandle_t, etc. A header file for the OS definitions
+ * needs to be included somewhere in the scope of <tt>ff.h</tt>.
+ */
+#define _FS_REENTRANT   0
+#endif
+#ifndef _FS_TIMEOUT
+#define _FS_TIMEOUT     1000
+#endif
+#ifndef _SYNC_t
+#define _SYNC_t         HANDLE
+#endif
+
+/** @} */
+/*----------------------------------------------------------------------------*/
+
+#endif /* FFCONF_H_ */
+
+/**
+ * @}
+ * @}
+ */
diff --git a/platform/zoul/remote-reva/Makefile.remote-reva b/platform/zoul/remote-reva/Makefile.remote-reva
index 84a2616a3..893b2a6fe 100644
--- a/platform/zoul/remote-reva/Makefile.remote-reva
+++ b/platform/zoul/remote-reva/Makefile.remote-reva
@@ -1,4 +1,4 @@
 MOTELIST_ZOLERTIA = remote
 BOARD_SOURCEFILES += board.c antenna-sw.c mmc-arch.c rtcc.c power-mgmt.c leds-arch.c
 
-MODULES += dev/disk/mmc
+MODULES += lib/fs/fat lib/fs/fat/option platform/zoul/fs/fat dev/disk/mmc
diff --git a/platform/zoul/remote-revb/Makefile.remote-revb b/platform/zoul/remote-revb/Makefile.remote-revb
index 94c9d67c3..1c5e05d18 100644
--- a/platform/zoul/remote-revb/Makefile.remote-revb
+++ b/platform/zoul/remote-revb/Makefile.remote-revb
@@ -1,4 +1,4 @@
 MOTELIST_ZOLERTIA = remote
 BOARD_SOURCEFILES += board.c antenna-sw.c mmc-arch.c rtcc.c leds-res-arch.c power-mgmt.c
 
-MODULES += dev/disk/mmc
+MODULES += lib/fs/fat lib/fs/fat/option platform/zoul/fs/fat dev/disk/mmc