Manage the page writing on two banks. Move flash info in sam3 defines.

[bertos.git] / bertos / cpu / cortex-m3 / drv / flash_sam3.c

diff --git a/bertos/cpu/cortex-m3/drv/flash_sam3.c b/bertos/cpu/cortex-m3/drv/flash_sam3.c
index fdafc2ae51ecb07b2a16f3977f94144fa145c03f..dfe68c5a61c82352cddd99b31745aa31de67ab64 100644 (file)
--- a/bertos/cpu/cortex-m3/drv/flash_sam3.c
+++ b/bertos/cpu/cortex-m3/drv/flash_sam3.c
@@ -61,11 +61,6 @@
 #include <string.h>
 
 
-#define FLASH_MEM_SIZE          0x80000UL ///< Internal flash memory size
-#define FLASH_PAGE_SIZE_BYTES         256 ///< Size of cpu flash memory page in bytes
-#define FLASH_BANKS_NUM                 2 ///< Number of flash banks
-#define FLASH_BASE                    0x0
-
 struct FlashHardware
 {
        uint8_t status;
@@ -79,7 +74,7 @@ struct FlashHardware
  *       executing code from flash while a writing process
  *       is in progress is forbidden.
  */
-RAM_FUNC NOINLINE static void write_page(uint32_t page)
+RAM_FUNC NOINLINE static void write_page_bank0(uint32_t page)
 {
        // Send the 'write page' command
        EEFC0_FCR = EEFC_FCR_FKEY | EFC_FCR_FCMD_EWP | EEFC_FCR_FARG(page);
@@ -91,6 +86,20 @@ RAM_FUNC NOINLINE static void write_page(uint32_t page)
        }
 }
 
+#if FLASH_BANKS_NUM > 1
+RAM_FUNC NOINLINE static void write_page_bank1(uint32_t page)
+{
+       // Send the 'write page' command
+       EEFC1_FCR = EEFC_FCR_FKEY | EFC_FCR_FCMD_EWP | EEFC_FCR_FARG(page);
+
+       // Wait for the end of command
+       while(!(EEFC1_FSR & BV(EEFC_FSR_FRDY)))
+       {
+               //NOP;
+       }
+}
+#endif
+
 
 /**
  * Send write command.
@@ -104,10 +113,20 @@ INLINE void flash_sendWRcmd(uint32_t page)
 
        LOG_INFO("Writing page %ld...\n", page);
 
-       IRQ_SAVE_DISABLE(flags);
-       write_page(page);
+       if (page > FLASH_PAGES_FOR_BANK)
+       {
+               page = page - FLASH_PAGES_FOR_BANK;
+               IRQ_SAVE_DISABLE(flags);
+               write_page_bank1(page);
+               IRQ_RESTORE(flags);
+       }
+       else
+       {
+               IRQ_SAVE_DISABLE(flags);
+               write_page_bank0(page);
+               IRQ_RESTORE(flags);
+       }
 
-       IRQ_RESTORE(flags);
        LOG_INFO("Done\n");
 }
 
@@ -143,6 +162,7 @@ static bool flash_getStatus(struct KBlock *blk)
        return true;
 }
 
+
 static size_t sam3_flash_readDirect(struct KBlock *blk, block_idx_t idx, void *buf, size_t offset, size_t size)
 {
        memcpy(buf, (void *)(idx * blk->blk_size +  FLASH_BASE + offset), size);