fm3: fix Fujitsu MB9Ax family support

Some MB9Ax (especially few internal SRAM model) fails programming
because of wrong SRAM basic-address on running algorithm.
Default SRAM basic-address must be 0x20000000.
This patch is fixing default SRAM basic-address and ramcode offset.
Tested on a MB9BF618T and MB9AF112K.

Change-Id: Ibda9aceb4c317bcae0dcce9f6d0fd1c4b5d81952
Signed-off-by: Nemui Trinomius <nemuisan_kawausogasuki@live.jp>
Reviewed-on: http://openocd.zylin.com/1793
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>

diff --git a/src/flash/nor/fm3.c b/src/flash/nor/fm3.c
index 70114da612307b8c3f710cfe3b9fe8016b11177f..09ce3173822733bd52c66a4cc1569c7ddefc84e8 100644 (file)
--- a/src/flash/nor/fm3.c
+++ b/src/flash/nor/fm3.c
@@ -450,10 +450,11 @@ static int fm3_write_block(struct flash_bank *bank, uint8_t *buffer,
        0x00, 0xBE,                                     /*        BKPT     #0                         */
 
        /* The following address pointers assume, that the code is running from   */
-       /* SRAM basic-address(BASE_ADDR)+8.These address pointers will be patched */
-       /* if a different start address in RAM is used (e.g. for Flash type 2)!   */
-       0x00, 0x80, 0xFF, 0x1F,     /* u32DummyRead address in RAM (BASE_ADDR)    */
-       0x04, 0x80, 0xFF, 0x1F      /* u32FlashResult address in RAM (BASE_ADDR+4)*/
+       /* SRAM basic-address + 8.These address pointers will be patched, if a    */
+       /* different start address in RAM is used (e.g. for Flash type 2)!        */
+       /* Default SRAM basic-address is 0x20000000.                              */
+       0x00, 0x00, 0x00, 0x20,     /* u32DummyRead address in RAM (0x20000000)   */
+       0x04, 0x00, 0x00, 0x20      /* u32FlashResult address in RAM (0x20000004) */
        };
 
        LOG_INFO("Fujitsu MB9[A/B]FXXX: FLASH Write ...");
@@ -479,18 +480,32 @@ static int fm3_write_block(struct flash_bank *bank, uint8_t *buffer,
                return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
        }
 
-       /* allocate working area with flash programming code */
-       if (target_alloc_working_area(target, sizeof(fm3_flash_write_code),
+       /* allocate working area and variables with flash programming code */
+       if (target_alloc_working_area(target, sizeof(fm3_flash_write_code) + 8,
                        &write_algorithm) != ERROR_OK) {
                LOG_WARNING("no working area available, can't do block memory writes");
                return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
        }
 
-       retval = target_write_buffer(target, write_algorithm->address,
+       retval = target_write_buffer(target, write_algorithm->address + 8,
                sizeof(fm3_flash_write_code), fm3_flash_write_code);
        if (retval != ERROR_OK)
                return retval;
 
+       /* Patching 'local variable address' */
+       /* Algorithm: u32DummyRead: */
+       retval = target_write_u32(target, (write_algorithm->address + 8)
+                       + sizeof(fm3_flash_write_code) - 8, (write_algorithm->address));
+       if (retval != ERROR_OK)
+               return retval;
+       /* Algorithm: u32FlashResult: */
+       retval = target_write_u32(target, (write_algorithm->address + 8)
+                       + sizeof(fm3_flash_write_code) - 4, (write_algorithm->address) + 4);
+       if (retval != ERROR_OK)
+               return retval;
+
+
+
        /* memory buffer */
        while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK) {
                buffer_size /= 2;
@@ -518,26 +533,6 @@ static int fm3_write_block(struct flash_bank *bank, uint8_t *buffer,
        while (count > 0) {
                uint32_t thisrun_count = (count > (buffer_size / 2)) ? (buffer_size / 2) : count;
 
-               retval = target_write_buffer(target, write_algorithm->address, 8,
-                               fm3_flash_write_code);
-               if (retval != ERROR_OK)
-                       break;
-
-               /* Patching 'local variable address' for different RAM addresses */
-               if (write_algorithm->address != (target->working_area_phys + 8)) {
-                       /* Algorithm: u32DummyRead: */
-                       retval = target_write_u32(target, (write_algorithm->address)
-                               + sizeof(fm3_flash_write_code) - 8, (write_algorithm->address) - 8);
-                       if (retval != ERROR_OK)
-                               break;
-
-                       /* Algorithm: u32FlashResult: */
-                       retval = target_write_u32(target, (write_algorithm->address)
-                               + sizeof(fm3_flash_write_code) - 4, (write_algorithm->address) - 4);
-                       if (retval != ERROR_OK)
-                               break;
-               }
-
                retval = target_write_buffer(target, source->address, thisrun_count * 2, buffer);
                if (retval != ERROR_OK)
                        break;
@@ -549,7 +544,7 @@ static int fm3_write_block(struct flash_bank *bank, uint8_t *buffer,
                buf_set_u32(reg_params[4].value, 0, 32, u32FlashSeqAddress2);
 
                retval = target_run_algorithm(target, 0, NULL, 6, reg_params,
-                               write_algorithm->address, 0, 1000, &armv7m_info);
+                               (write_algorithm->address + 8), 0, 1000, &armv7m_info);
                if (retval != ERROR_OK) {
                        LOG_ERROR("Error executing fm3 Flash programming algorithm");
                        retval = ERROR_FLASH_OPERATION_FAILED;
@@ -791,9 +786,7 @@ static int fm3_chip_erase(struct flash_bank *bank)
                return ERROR_TARGET_NOT_HALTED;
        }
 
-       LOG_INFO("Fujitsu MB9[AB]xxx: Chip Erase ... (may take several seconds)");
-
-       /* Implement Flash chip erase (mass erase) completely on host */
+       LOG_INFO("Fujitsu MB9[A/B]xxx: Chip Erase ... (may take several seconds)");
 
        /* FASZR = 0x01, Enables CPU Programming Mode (16-bit Flash access) */
        retval = target_write_u32(target, 0x40000000, 0x0001);