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sys/eepreg: use MTD #22158

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63d6a26
sys/eepreg: API change: use MTD
fabian18 Mar 30, 2026
61c2efa
drivers: add mtd_eeprom for internal EEPROM
fabian18 Mar 30, 2026
5e51433
boards: add mtd_eeprom for atmega boards
fabian18 Mar 30, 2026
e68eb3a
boards: add mtd_eeprom for nucleo boards
fabian18 Mar 30, 2026
a6231bb
boards: add mtd_eeprom for native
fabian18 Mar 30, 2026
9cf6b13
tests/drivers: add mtd_eeprom test
fabian18 Mar 30, 2026
9e199f3
boards: expose default EEPROM MTD
fabian18 Apr 15, 2026
3843d2b
boards: drop MTD_0 for MTD EEPROM
fabian18 May 5, 2026
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4 changes: 4 additions & 0 deletions boards/arduino-duemilanove/Makefile.dep
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@@ -1,3 +1,7 @@
USEMODULE += boards_common_arduino-atmega

include $(RIOTBOARD)/common/arduino-atmega/Makefile.dep

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
4 changes: 4 additions & 0 deletions boards/arduino-leonardo/Makefile.dep
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@@ -1,3 +1,7 @@
USEMODULE += boards_common_arduino-atmega

include $(RIOTBOARD)/common/arduino-atmega/Makefile.dep

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
4 changes: 4 additions & 0 deletions boards/arduino-nano/Makefile.dep
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@@ -1,3 +1,7 @@
USEMODULE += boards_common_arduino-atmega

include $(RIOTBOARD)/common/arduino-atmega/Makefile.dep

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
2 changes: 1 addition & 1 deletion boards/arduino-nano/include/board.h
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Expand Up @@ -10,7 +10,7 @@
* @{
*
* @file
* @brief Board specific definitions for the Arduino Uno board
* @brief Board specific definitions for the Arduino Nano board
*
* @author Martine Lenders <m.lenders@fu-berlin.de>
*/
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4 changes: 4 additions & 0 deletions boards/arduino-uno/Makefile.dep
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@@ -1,3 +1,7 @@
USEMODULE += boards_common_arduino-atmega

include $(RIOTBOARD)/common/arduino-atmega/Makefile.dep

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
4 changes: 4 additions & 0 deletions boards/atmega256rfr2-xpro/Makefile.dep
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Expand Up @@ -5,3 +5,7 @@ ifneq (,$(filter saul_default,$(USEMODULE)))
USEMODULE += at30tse75x
USEMODULE += saul_gpio
endif

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
4 changes: 4 additions & 0 deletions boards/atmega328p-xplained-mini/Makefile.dep
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Expand Up @@ -4,3 +4,7 @@ USEMODULE += atmega_pcint0
ifneq (,$(filter saul_default,$(USEMODULE)))
USEMODULE += saul_gpio
endif

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
4 changes: 4 additions & 0 deletions boards/atmega8/Makefile.dep
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@@ -1 +1,5 @@
USEMODULE += boards_common_atmega

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
1 change: 1 addition & 0 deletions boards/avr-rss2/Makefile.dep
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Expand Up @@ -9,6 +9,7 @@ endif

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_at24cxxx at24mac
USEMODULE += mtd_eeprom
endif

ifneq (,$(filter saul_default,$(USEMODULE)))
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4 changes: 4 additions & 0 deletions boards/b-l072z-lrwan1/Makefile.dep
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Expand Up @@ -10,3 +10,7 @@ ifneq (,$(filter periph_spi,$(USEMODULE)))
# The LED pin is also used for SPI
DISABLE_MODULE += periph_init_led0
endif

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
6 changes: 6 additions & 0 deletions boards/b-l072z-lrwan1/board.c
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Expand Up @@ -17,6 +17,12 @@

#include "board.h"
#include "periph/gpio.h"
#include "mtd_eeprom.h"

#if MODULE_MTD_EEPROM
mtd_eeprom_t mtd_eeprom = MTD_EEPROM_INIT_VAL;
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@crasbe crasbe Apr 15, 2026

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Even though this is not a define, I'd propose to call it MTD_EEPROM to reduce the confusion with the module.

But still, there is confusion potential between the module and the MTD device when both have the same name 😅

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@crasbe crasbe Apr 15, 2026

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But I don't have a better name for the MTD device unfortunately :(

MTD_XFA_ADD(mtd_eeprom, 0);
#endif /* MODULE_MTD_EEPROM */

void board_init(void)
{
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23 changes: 23 additions & 0 deletions boards/common/atmega/board_common.c
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@@ -0,0 +1,23 @@
/*
* SPDX-FileCopyrightText: 2026 ML!PA Consulting GmbH
* SPDX-License-Identifier: LGPL-2.1-only
*/

/**
* @ingroup boards_common_atmega
* @{
*
* @file
* @brief Definitions for all atmega boards.
*
* @author Fabian Hüßler <fabian.huessler@ml-pa.com>
* @}
*/

#include "board.h"
#include "mtd_eeprom.h"

#if MODULE_MTD_EEPROM
mtd_eeprom_t mtd_eeprom = MTD_EEPROM_INIT_VAL;
MTD_XFA_ADD(mtd_eeprom, 0);
#endif /* MODULE_MTD_EEPROM */
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5 changes: 4 additions & 1 deletion boards/common/native/board_init.c
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Expand Up @@ -20,6 +20,7 @@

#ifdef MODULE_MTD
#include "mtd_native.h"
#include "mtd_eeprom.h"

mtd_native_dev_t mtd0_dev = {
.base = {
Expand All @@ -31,8 +32,10 @@ mtd_native_dev_t mtd0_dev = {
},
.fname = MTD_NATIVE_FILENAME,
};

MTD_XFA_ADD(mtd0_dev.base, 0);

mtd_eeprom_t mtd_eeprom = MTD_EEPROM_INIT_VAL;
MTD_XFA_ADD(mtd_eeprom, 1);
#endif

#ifdef MODULE_VFS_DEFAULT
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5 changes: 4 additions & 1 deletion boards/common/native/include/board.h
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Expand Up @@ -81,6 +81,7 @@ void _native_LED_RED_TOGGLE(void);

/** Default MTD device (mtd flash emulation device) */
#define MTD_0 mtd_dev_get(0)
#define MTD_1 mtd_dev_get(1)
#endif

/**
Expand Down Expand Up @@ -131,8 +132,10 @@ void _native_LED_RED_TOGGLE(void);
#endif

#if SPIFFS_HAL_CALLBACK_EXTRA == 0
/* Default MTD device if no callback parameter */
#ifndef SPIFFS_MTD_DEV
/**
* @brief Default MTD device if no callback parameter is provided
*/
#define SPIFFS_MTD_DEV (MTD_0)
#endif
#endif
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23 changes: 23 additions & 0 deletions boards/common/nucleo/board_common.c
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@@ -0,0 +1,23 @@
/*
* SPDX-FileCopyrightText: 2026 ML!PA Consulting GmbH
* SPDX-License-Identifier: LGPL-2.1-only
*/

/**
* @ingroup boards_common_nucleo
* @{
*
* @file
* @brief Definitions for all nucleo boards.
*
* @author Fabian Hüßler <fabian.huessler@ml-pa.com>
* @}
*/

#include "board.h"
#include "mtd_eeprom.h"

#if MODULE_MTD_EEPROM
mtd_eeprom_t mtd_eeprom = MTD_EEPROM_INIT_VAL;
MTD_XFA_ADD(mtd_eeprom, 0);
#endif /* MODULE_MTD_EEPROM */
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4 changes: 4 additions & 0 deletions boards/derfmega128/Makefile.dep
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@@ -1 +1,5 @@
USEMODULE += boards_common_atmega

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
4 changes: 4 additions & 0 deletions boards/derfmega256/Makefile.dep
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Expand Up @@ -3,3 +3,7 @@ USEMODULE += boards_common_atmega
ifneq (,$(filter eui_provider,$(USEMODULE)))
FEATURES_REQUIRED += periph_eeprom
endif

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
4 changes: 4 additions & 0 deletions boards/i-nucleo-lrwan1/Makefile.dep
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Expand Up @@ -4,3 +4,7 @@ endif
ifneq (,$(filter netdev_default,$(USEMODULE)))
USEMODULE += sx1272
endif

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
24 changes: 24 additions & 0 deletions boards/i-nucleo-lrwan1/board.c
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@@ -0,0 +1,24 @@
/*
* SPDX-FileCopyrightText: 2026 ML!PA Consulting GmbH
* SPDX-License-Identifier: LGPL-2.1-only
*/

/**
* @ingroup boards_i-nucleo-lrwan1
* @{
*
* @file
* @brief Board specific initialization for I-Nucleo-LRWAN1
*
* @author Fabian Hüßler <fabian.huessler@ml-pa.com>
*
* @}
*/

#include "board.h"
#include "mtd_eeprom.h"

#if MODULE_MTD_EEPROM
mtd_eeprom_t mtd_eeprom = MTD_EEPROM_INIT_VAL;
MTD_XFA_ADD(mtd_eeprom, 0);
#endif /* MODULE_MTD_EEPROM */
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4 changes: 4 additions & 0 deletions boards/im880b/Makefile.dep
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@@ -1,3 +1,7 @@
ifneq (,$(filter netdev_default,$(USEMODULE)))
USEMODULE += sx1272
endif

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
24 changes: 24 additions & 0 deletions boards/im880b/board.c
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@@ -0,0 +1,24 @@
/*
* SPDX-FileCopyrightText: 2026 ML!PA Consulting GmbH
* SPDX-License-Identifier: LGPL-2.1-only
*/

/**
* @ingroup boards_im880b
* @{
*
* @file
* @brief Board specific initialization for IM880B
*
* @author Fabian Hüßler <fabian.huessler@ml-pa.com>
*
* @}
*/

#include "board.h"
#include "mtd_eeprom.h"

#if MODULE_MTD_EEPROM
mtd_eeprom_t mtd_eeprom = MTD_EEPROM_INIT_VAL;
MTD_XFA_ADD(mtd_eeprom, 0);
#endif /* MODULE_MTD_EEPROM */
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4 changes: 4 additions & 0 deletions boards/limifrog-v1/Makefile.dep
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@@ -1,3 +1,7 @@
ifneq (,$(filter saul_default,$(USEMODULE)))
USEMODULE += lis3mdl
endif

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
24 changes: 24 additions & 0 deletions boards/limifrog-v1/board.c
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/*
* SPDX-FileCopyrightText: 2026 ML!PA Consulting GmbH
* SPDX-License-Identifier: LGPL-2.1-only
*/

/**
* @ingroup boards_limifrog-v1
* @{
*
* @file
* @brief Board specific initialization for LIMIFROG-V1
*
* @author Fabian Hüßler <fabian.huessler@ml-pa.com>
*
* @}
*/

#include "board.h"
#include "mtd_eeprom.h"

#if MODULE_MTD_EEPROM
mtd_eeprom_t mtd_eeprom = MTD_EEPROM_INIT_VAL;
MTD_XFA_ADD(mtd_eeprom, 0);
#endif /* MODULE_MTD_EEPROM */
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4 changes: 4 additions & 0 deletions boards/lobaro-lorabox/Makefile.dep
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Expand Up @@ -5,3 +5,7 @@ endif
ifneq (,$(filter netdev_default,$(USEMODULE)))
USEMODULE += sx1272
endif

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
6 changes: 6 additions & 0 deletions boards/lobaro-lorabox/board.c
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Expand Up @@ -16,6 +16,12 @@

#include "board.h"
#include "periph/gpio.h"
#include "mtd_eeprom.h"

#if MODULE_MTD_EEPROM
mtd_eeprom_t mtd_eeprom = MTD_EEPROM_INIT_VAL;
MTD_XFA_ADD(mtd_eeprom, 0);
#endif /* MODULE_MTD_EEPROM */

void board_init(void)
{
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4 changes: 4 additions & 0 deletions boards/lsn50/Makefile.dep
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@@ -1,3 +1,7 @@
ifneq (,$(filter netdev_default,$(USEMODULE)))
USEMODULE += sx1276
endif

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
24 changes: 24 additions & 0 deletions boards/lsn50/board.c
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/*
* SPDX-FileCopyrightText: 2026 ML!PA Consulting GmbH
* SPDX-License-Identifier: LGPL-2.1-only
*/

/**
* @ingroup boards_lsn50
* @{
*
* @file
* @brief Board specific initialization for Dragino LSN50
*
* @author Fabian Hüßler <fabian.huessler@ml-pa.com>
*
* @}
*/

#include "board.h"
#include "mtd_eeprom.h"

#if MODULE_MTD_EEPROM
mtd_eeprom_t mtd_eeprom = MTD_EEPROM_INIT_VAL;
MTD_XFA_ADD(mtd_eeprom, 0);
#endif /* MODULE_MTD_EEPROM */
4 changes: 4 additions & 0 deletions boards/mega-xplained/Makefile.dep
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Expand Up @@ -4,3 +4,7 @@ ifneq (,$(filter saul_default,$(USEMODULE)))
USEMODULE += saul_adc
USEMODULE += saul_gpio
endif

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
4 changes: 4 additions & 0 deletions boards/microduino-corerf/Makefile.dep
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@@ -1 +1,5 @@
USEMODULE += boards_common_atmega

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
4 changes: 4 additions & 0 deletions boards/nucleo-l011k4/Makefile.dep
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Expand Up @@ -2,3 +2,7 @@
FEATURES_REQUIRED += picolibc

include $(RIOTBOARD)/common/nucleo32/Makefile.dep

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
4 changes: 4 additions & 0 deletions boards/nucleo-l031k6/Makefile.dep
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include $(RIOTBOARD)/common/nucleo32/Makefile.dep

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
4 changes: 4 additions & 0 deletions boards/nucleo-l053r8/Makefile.dep
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@@ -1 +1,5 @@
include $(RIOTBOARD)/common/nucleo64/Makefile.dep

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
4 changes: 4 additions & 0 deletions boards/nucleo-l073rz/Makefile.dep
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include $(RIOTBOARD)/common/nucleo64/Makefile.dep

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
4 changes: 4 additions & 0 deletions boards/nucleo-l152re/Makefile.dep
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include $(RIOTBOARD)/common/nucleo64/Makefile.dep

ifneq (,$(filter mtd,$(USEMODULE)))
USEMODULE += mtd_eeprom
endif
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