cpu/msp430: added flashpage driver implementation

boards/msb-430/Makefile.features

 # Put defined MCU peripherals here (in alphabetical order)
+FEATURES_PROVIDED += periph_flashpage
 FEATURES_PROVIDED += periph_gpio
-FEATURES_PROVIDED += periph_timer
 FEATURES_PROVIDED += periph_spi
+FEATURES_PROVIDED += periph_timer
 FEATURES_PROVIDED += periph_uart
 
 # Various other features (if any)

boards/msb-430h/Makefile.features

 # Put defined MCU peripherals here (in alphabetical order)
 FEATURES_PROVIDED += periph_gpio
+FEATURES_PROVIDED += periph_flashpage
 FEATURES_PROVIDED += periph_spi
 FEATURES_PROVIDED += periph_timer
 FEATURES_PROVIDED += periph_uart

boards/telosb/Makefile.features

 # Put defined MCU peripherals here (in alphabetical order)
+FEATURES_PROVIDED += periph_flashpage
 FEATURES_PROVIDED += periph_gpio
 FEATURES_PROVIDED += periph_spi
 FEATURES_PROVIDED += periph_timer

boards/wsn430-v1_3b/Makefile.features

 # Put defined MCU peripherals here (in alphabetical order)
+FEATURES_PROVIDED += periph_flashpage
 FEATURES_PROVIDED += periph_gpio
 FEATURES_PROVIDED += periph_timer
 FEATURES_PROVIDED += periph_spi

boards/wsn430-v1_4/Makefile.features

 # Put defined MCU peripherals here (in alphabetical order)
+FEATURES_PROVIDED += periph_flashpage
 FEATURES_PROVIDED += periph_gpio
 FEATURES_PROVIDED += periph_timer
 FEATURES_PROVIDED += periph_spi

boards/z1/Makefile.features

 # Put defined MCU peripherals here (in alphabetical order)
+FEATURES_PROVIDED += periph_flashpage
 FEATURES_PROVIDED += periph_gpio
 FEATURES_PROVIDED += periph_spi
 FEATURES_PROVIDED += periph_timer

cpu/msp430_common/Makefile.include

 INCLUDES += -I$(RIOTCPU)/msp430_common/include/
 
+# export the CPU model
+MODEL = $(shell echo $(CPU_MODEL) | tr 'a-z' 'A-Z')
+export CFLAGS += -DCPU_MODEL_$(MODEL)
+
 export UNDEF += $(BINDIR)/msp430_common/startup.o
-export USEMODULE += msp430_common msp430_common_periph
+export USEMODULE += msp430_common msp430_common_periph periph_common
 
 DEFAULT_MODULE += oneway_malloc
 

cpu/msp430_common/include/cpu_conf.h

@@ -14,7 +14,28 @@ extern "C" {
 #endif
 
 /**
- * @name Kernel configuration
+ * @name   Configure the internal flash memory
+ * @{
+ */
+#define FLASHPAGE_SIZE      (512)
+
+#if defined (CPU_MODEL_MSP430F1611)
+#define CPU_FLASH_BASE      (0x4000)
+#define FLASHPAGE_NUMOF     (96)        /* 48K */
+#elif defined (CPU_MODEL_MSP430F1612)
+#define CPU_FLASH_BASE      (0x2600)
+#define FLASHPAGE_NUMOF     (110)       /* 56K */
+#elif defined (CPU_MODEL_MSP430F2617)
+#define CPU_FLASH_BASE      (0x3100)
+#define FLASHPAGE_NUMOF     (128)       /* we can currently only access 52K */
+#elif defined (CPU_MODEL_CC430F6137)
+#define CPU_FLASH_BASE      (0x8000)
+#define FLASHPAGE_NUMOF     (64)        /* 32K */
+#endif
+/** @} */
+
+/**
+ * @name    Kernel configuration
  * @{
  */
 #ifndef THREAD_EXTRA_STACKSIZE_PRINTF

cpu/msp430_common/periph/flashpage.c

+/*
+ * Copyright (C) 2014 INRIA
+ *               2017 Freie Universität Berlin
+ *
+ * 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.
+ */
+
+/**
+ * @ingroup     cpu_msp430fxyz
+ * @{
+ *
+ * @file
+ * @brief       Implementation of the peripheral flashpage interface
+ *
+ * @author      Oliver Hahm <oliver.hahm@inria.fr>
+ * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
+ *
+ * @}
+ */
+
+#include "cpu.h"
+#include "irq.h"
+#include "periph/flashpage.h"
+
+void flashpage_write(int page, void *data)
+{
+    assert(page < FLASHPAGE_NUMOF);
+
+    uint8_t *src = (uint8_t *)data;
+    uint8_t *dst = (uint8_t *)flashpage_addr(page);
+    unsigned istate;
+
+    /* disable interrupts and unlock flash */
+    istate = irq_disable();
+    FCTL3 = FWKEY;
+    while (FCTL3 & BUSY) {}
+
+    /* erase page */
+    FCTL1 = (FWKEY | ERASE);
+    *dst = 0;                   /* erases the page */
+    while (FCTL3 & BUSY) {}
+
+    if (data) {
+        FCTL1 = (FWKEY | WRT);
+        for (unsigned i = 0; i < FLASHPAGE_SIZE; i++) {
+            *(dst++) = *(src++);
+            while (!(FCTL3 & WAIT)) {}
+        }
+    }
+
+    /* lock flash and re-enable interrupts */
+    FCTL1 = (FWKEY);
+    FCTL3 = (FWKEY | LOCK);
+    irq_restore(istate);
+}