* moved flashrom from msp430-common to msb430x16x

board/msb-430-common/Jamfile

@@ -28,7 +28,7 @@
 SubDir TOP board msb-430-common ;
 
 Module board : board_init.c debug_uart.c ;
-Module board_config : board_config.c ;
+Module board_config : board_config.c : flashrom ;
 UseModule board ;
 
 SubInclude TOP cpu $(CPU) ;

cpu/msp430x16x/flashrom.c

@@ -0,0 +1,80 @@
+#include <stddef.h>
+#include <stdint.h>
+#include <msp430x16x.h>
+#include <irq.h>
+
+uint8_t ie1, ie2;
+
+static uint8_t prepare(void);
+static void finish(uint8_t istate);
+static inline void busy_wait(void);
+
+/*---------------------------------------------------------------------------*/
+uint8_t flashrom_erase(uint8_t *addr) {
+    uint8_t istate = prepare();
+
+    FCTL3 = FWKEY;               /* Lock = 0 */
+    busy_wait();
+    FCTL1 = FWKEY | ERASE; 
+    *addr  = 0;                    /* erase Flash segment */
+    busy_wait();
+    FCTL1 = FWKEY;               /* ERASE = 0 */
+    FCTL3 = FWKEY | LOCK;  
+    finish(istate);
+    return 1;
+}
+
+void flashrom_write(uint8_t *dst, uint8_t *src, size_t size)  {
+    unsigned int i;
+    FCTL3 = FWKEY;              /* Lock = 0 */
+    busy_wait();
+    for (i = size; i > 0; i--) {
+        FCTL1 = FWKEY | WRT;
+        *dst = *src;                /* program Flash word */
+        while (!(FCTL3 & WAIT)) {
+            nop();
+        }
+    }
+    busy_wait();
+    FCTL1 = FWKEY;              /* WRT = 0 */
+    FCTL3 = FWKEY | LOCK;              /* Lock = 1 */
+}
+
+/*---------------------------------------------------------------------------*/
+static uint8_t prepare(void) {
+    uint8_t istate;
+
+    /* Disable all interrupts. */
+
+    /* Clear interrupt flag1. */
+    IFG1 = 0;
+
+    /* DCO(SMCLK) is 2,4576MHz, /6 = 409600 Hz
+     select SMCLK for flash timing, divider 4+1 */
+    FCTL2 = FWKEY | FSSEL_3 | FN2 | FN0;              
+
+    /* disable all interrupts to protect CPU
+     during programming from system crash */
+    istate = disableIRQ();
+
+    /* disable all NMI-Interrupt sources */
+    ie1 = IE1;
+    ie2 = IE2;
+    IE1 = 0x00;                  
+    IE2 = 0x00;
+    return istate;
+}
+/*---------------------------------------------------------------------------*/
+void finish(uint8_t istate) {
+  /* Enable interrupts. */
+  IE1 = ie1;
+  IE2 = ie2;
+  restoreIRQ(istate);
+}
+
+static inline void busy_wait(void) {
+    /* Wait for BUSY = 0, not needed unless run from RAM */
+    while(FCTL3 & 0x0001) {
+        nop();
+    }
+}