Update linker scripts for bootloader for L496GZ

Author: micgur01

targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L496xG/device/TOOLCHAIN_ARM_MICRO/stm32l496xx.sct

@@ -27,10 +27,18 @@
 ; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x08000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x100000
+#endif
+
 ; 1MB FLASH (0x100000) + 320KB SRAM (0x50000)
-LR_IROM1 0x08000000 0x100000  {    ; load region size_region
+LR_IROM1 MBED_APP_START MBED_APP_SIZE  {    ; load region size_region
 
-  ER_IROM1 0x08000000 0x100000  {  ; load address = execution address
+  ER_IROM1 MBED_APP_START MBED_APP_SIZE  {  ; load address = execution address
    *.o (RESET, +First)
    *(InRoot$$Sections)
    .ANY (+RO)

targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L496xG/device/TOOLCHAIN_ARM_STD/stm32l496xx.sct

@@ -27,10 +27,18 @@
 ; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x08000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x100000
+#endif
+
 ; 1MB FLASH (0x100000) + 320KB SRAM (0x50000)
-LR_IROM1 0x08000000 0x100000  {    ; load region size_region
+LR_IROM1 MBED_APP_START MBED_APP_SIZE  {    ; load region size_region
 
-  ER_IROM1 0x08000000 0x100000  {  ; load address = execution address
+  ER_IROM1 MBED_APP_START MBED_APP_SIZE  {  ; load address = execution address
    *.o (RESET, +First)
    *(InRoot$$Sections)
    .ANY (+RO)

targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L496xG/device/TOOLCHAIN_GCC_ARM/STM32L496XX.ld

@@ -1,8 +1,14 @@
 /* Linker script to configure memory regions. */
 /* 0x1AC resevered for vectors; 8-byte aligned = 0x1B0 (0x1AC + 0x4)*/
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x08000000
+#endif
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 1024k
+#endif
 MEMORY
 { 
-  FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 1024K
+  FLASH (rx)   : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
   SRAM1 (rwx)  : ORIGIN = 0x200001B0, LENGTH = 320k - (0x1AC +0x4)
 }
 

targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L496xG/device/TOOLCHAIN_IAR/stm32l496xx.icf

@@ -1,7 +1,10 @@
+if (!isdefinedsymbol(MBED_APP_START)) { define symbol MBED_APP_START = 0x08000000; }
+if (!isdefinedsymbol(MBED_APP_SIZE)) { define symbol MBED_APP_SIZE = 0x80000; }
+
 /* [ROM = 1024kb = 0x100000] */
-define symbol __intvec_start__     = 0x08000000;
-define symbol __region_ROM_start__ = 0x08000000;
-define symbol __region_ROM_end__   = 0x08000000 + 0x100000 - 1;
+define symbol __intvec_start__     = MBED_APP_START;
+define symbol __region_ROM_start__ = MBED_APP_START;
+define symbol __region_ROM_end__   = MBED_APP_START + MBED_APP_SIZE - 1;
 
 /* [RAM = 0x50000] */
 /* Vector table dynamic copy: Total: 107 vectors * 4 = 428 bytes (0x1AC) to be reserved in RAM */

targets/targets.json

@@ -4282,7 +4282,8 @@
         "detect_code": ["0823"],
         "device_has_add": ["ANALOGOUT", "CAN", "CRC", "SERIAL_ASYNCH", "SERIAL_FC", "TRNG", "FLASH"],
         "release_versions": ["2", "5"],
-        "device_name": "STM32L496ZG"
+        "device_name": "STM32L496ZG",
+        "bootloader_supported": true
     },
     "NUCLEO_L496ZG_P": {
         "inherits": ["NUCLEO_L496ZG"],