cfg_page: provide/manage of configuration variables in flash

boards/native/Makefile.features

@@ -11,3 +11,6 @@ FEATURES_PROVIDED += periph_qdec
 # Various other features (if any)
 FEATURES_PROVIDED += ethernet
 FEATURES_PROVIDED += motor_driver
+
+# Put other features for this board (in alphabetical order)
+FEATURES_PROVIDED += riotboot

boards/native/board_init.c

@@ -22,6 +22,11 @@
 #include "mtd_native.h"
 #endif
 
+#ifdef MODULE_CFG_PAGE
+#include "cfg_page.h"
+cfg_page_desc_t cfgpage;
+#endif
+
 /**
  * Nothing to initialize at the moment.
  * Turns the red LED on and the green LED off.
@@ -32,6 +37,9 @@ void board_init(void)
     LED1_ON;
 
     puts("RIOT native board initialized.");
+#ifdef MODULE_CFG_PAGE
+    cfg_page_init(&cfgpage);
+#endif
 }
 
 #ifdef MODULE_MTD
@@ -47,3 +55,20 @@ static mtd_native_dev_t mtd0_dev = {
 
 mtd_dev_t *mtd0 = (mtd_dev_t *)&mtd0_dev;
 #endif
+
+#ifdef MODULE_CFG_PAGE
+#ifndef MTD1_SECTOR_NUM
+#define MTD1_SECTOR_NUM 2
+#endif
+static mtd_native_dev_t mtd1_dev = {
+    .dev = {
+        .driver = &native_flash_driver,
+        .sector_count = MTD1_SECTOR_NUM,
+        .pages_per_sector = MTD_SECTOR_SIZE / MTD_PAGE_SIZE,
+        .page_size = MTD_PAGE_SIZE,
+    },
+    .fname = MTD_NATIVE_CFG_FILENAME,
+};
+
+mtd_dev_t *mtd1 = (mtd_dev_t *)&mtd1_dev;
+#endif

boards/native/include/board.h

@@ -71,13 +71,22 @@ void _native_LED_RED_TOGGLE(void);
 #ifndef MTD_NATIVE_FILENAME
 #define MTD_NATIVE_FILENAME     "MEMORY.bin"
 #endif
+#ifndef MTD_NATIVE_CFG_FILENAME
+#define MTD_NATIVE_CFG_FILENAME "CONFIG.bin"
+#endif
 /** @} */
 
 /** Default MTD device */
 #define MTD_0 mtd0
 
 /** mtd flash emulation device */
 extern mtd_dev_t *mtd0;
+
+#ifdef MODULE_CFG_PAGE
+#define MTD_1 mtd1
+extern mtd_dev_t *mtd1;
+#endif
+
 #endif
 
 #if defined(MODULE_SPIFFS) || DOXYGEN

drivers/cfg_page/Kconfig

@@ -0,0 +1,10 @@
+# Copyright (c) 2020 HAW Hamburg
+#
+# This file is subject to the terms and conditions of the GNU Lesser
+# General Public License v2.1. See the file LICENSE in the top level
+# directory for more details.
+#
+
+config MODULE_CFG_PAGE
+    bool "Generic Configuration Data flash interface"
+    depends on TEST_KCONFIG

drivers/cfg_page/Makefile

@@ -0,0 +1,2 @@
+include $(RIOTBASE)/Makefile.base
+

drivers/cfg_page/Makefile.dep

@@ -0,0 +1 @@
+USEPKG += nanocbor