flash/nor, contrib/loaders: add stm32 loaders Makefile and generated .inc

[openocd.git] / contrib / loaders / flash / stm32 / stm32l4x.S

diff --git a/contrib/loaders/flash/stm32l4x.S b/contrib/loaders/flash/stm32/stm32l4x.S
similarity index 90%
rename from contrib/loaders/flash/stm32l4x.S
rename to contrib/loaders/flash/stm32/stm32l4x.S
index 799dec5277f988a57b2795504011be0df956415e..9c49016df6641b5466d0dec19d656c03debed821 100644 (file)
--- a/contrib/loaders/flash/stm32l4x.S
+++ b/contrib/loaders/flash/stm32/stm32l4x.S
@@ -27,20 +27,6 @@
        .syntax unified
        .cpu cortex-m4
        .thumb
-       .thumb_func
-
-/* To assemble:
- * arm-none-eabi-gcc -c stm32l4x.S
- *
- * To disassemble:
- * arm-none-eabi-objdump -o stm32l4x.o
- *
- * To generate binary file:
- * arm-none-eabi-objcopy -O binary stm32l4x.o stm32l4_flash_write_code.bin
- *
- * To generate include file:
- * xxd -i stm32l4_flash_write_code.bin
- */
 
 /*
  * Params :
@@ -59,6 +45,11 @@
 #define STM32_FLASH_CR_OFFSET  0x14    /* offset of CR register in FLASH struct */
 #define STM32_FLASH_SR_OFFSET  0x10    /* offset of SR register in FLASH struct */
 
+#define STM32_PROG      0x1    /* PG */
+
+       .thumb_func
+       .global _start
+_start:
 wait_fifo:
        ldr     r8, [r0, #0]    /* read wp */
        cmp     r8, #0          /* abort if wp == 0 */
@@ -71,7 +62,7 @@ wait_fifo:
        cmp     r6, #8          /* wait until 8 bytes are available */
        bcc     wait_fifo
 
-       ldr     r6, STM32_PROG
+       ldr     r6, =STM32_PROG
        str     r6, [r4, #STM32_FLASH_CR_OFFSET]
        ldrd    r6, [r5], #0x08 /* read one word from src, increment ptr */
        strd    r6, [r2], #0x08 /* write one word to dst, increment ptr */
@@ -97,4 +88,5 @@ exit:
        mov     r0, r6          /* return status in r0 */
        bkpt    #0x00
 
-STM32_PROG: .word 0x1  /* PG */
+       .pool
+