stm32/boards: Add configuration for putting mboot on PYBv1.x.

ports/stm32/boards/PYBV10/mpconfigboard.h

@@ -100,3 +100,9 @@
 
 // MMA accelerometer config
 #define MICROPY_HW_MMA_AVDD_PIN     (pin_B5)
+
+// Bootloader configuration (only needed if Mboot is used)
+#define MBOOT_I2C_PERIPH_ID 1
+#define MBOOT_I2C_SCL (pin_B8)
+#define MBOOT_I2C_SDA (pin_B9)
+#define MBOOT_I2C_ALTFUNC (4)

ports/stm32/boards/PYBV10/mpconfigboard.mk

@@ -1,6 +1,13 @@
 MCU_SERIES = f4
 CMSIS_MCU = STM32F405xx
 AF_FILE = boards/stm32f405_af.csv
+ifeq ($(USE_MBOOT),1)
+# When using Mboot all the text goes together after the filesystem
+LD_FILES = boards/stm32f405.ld boards/common_blifs.ld
+TEXT0_ADDR = 0x08020000
+else
+# When not using Mboot the ISR text goes first, then the rest after the filesystem
 LD_FILES = boards/stm32f405.ld boards/common_ifs.ld
 TEXT0_ADDR = 0x08000000
 TEXT1_ADDR = 0x08020000
+endif

ports/stm32/boards/PYBV11/mpconfigboard.h

@@ -100,3 +100,9 @@
 
 // MMA accelerometer config
 #define MICROPY_HW_MMA_AVDD_PIN     (pin_B5)
+
+// Bootloader configuration (only needed if Mboot is used)
+#define MBOOT_I2C_PERIPH_ID 1
+#define MBOOT_I2C_SCL (pin_B8)
+#define MBOOT_I2C_SDA (pin_B9)
+#define MBOOT_I2C_ALTFUNC (4)

ports/stm32/boards/PYBV11/mpconfigboard.mk

@@ -1,6 +1,13 @@
 MCU_SERIES = f4
 CMSIS_MCU = STM32F405xx
 AF_FILE = boards/stm32f405_af.csv
+ifeq ($(USE_MBOOT),1)
+# When using Mboot all the text goes together after the filesystem
+LD_FILES = boards/stm32f405.ld boards/common_blifs.ld
+TEXT0_ADDR = 0x08020000
+else
+# When not using Mboot the ISR text goes first, then the rest after the filesystem
 LD_FILES = boards/stm32f405.ld boards/common_ifs.ld
 TEXT0_ADDR = 0x08000000
 TEXT1_ADDR = 0x08020000
+endif

ports/stm32/boards/common_blifs.ld

@@ -0,0 +1,86 @@
+/* Memory layout for bootloader and internal filesystem configuration (this here describes the app part):
+
+    FLASH_TEXT  .isr_vector
+    FLASH_TEXT  .text
+    FLASH_TEXT  .data
+
+    RAM         .data
+    RAM         .bss
+    RAM         .heap
+    RAM         .stack
+*/
+
+ENTRY(Reset_Handler)
+
+/* define output sections */
+SECTIONS
+{
+    /* The startup code goes first into FLASH */
+    .isr_vector :
+    {
+        . = ALIGN(4);
+        KEEP(*(.isr_vector)) /* Startup code */
+
+        . = ALIGN(4);
+    } >FLASH_TEXT
+
+    /* The program code and other data goes into FLASH */
+    .text :
+    {
+        . = ALIGN(4);
+        *(.text*)          /* .text* sections (code) */
+        *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    /*  *(.glue_7)   */    /* glue arm to thumb code */
+    /*  *(.glue_7t)  */    /* glue thumb to arm code */
+
+        . = ALIGN(4);
+        _etext = .;        /* define a global symbol at end of code */
+    } >FLASH_TEXT
+
+    /* used by the startup to initialize data */
+    _sidata = LOADADDR(.data);
+
+    /* This is the initialized data section
+    The program executes knowing that the data is in the RAM
+    but the loader puts the initial values in the FLASH (inidata).
+    It is one task of the startup to copy the initial values from FLASH to RAM. */
+    .data :
+    {
+        . = ALIGN(4);
+        _sdata = .;        /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */
+        *(.data*)          /* .data* sections */
+
+        . = ALIGN(4);
+        _edata = .;        /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */
+    } >RAM AT> FLASH_TEXT
+
+    /* Uninitialized data section */
+    .bss :
+    {
+        . = ALIGN(4);
+        _sbss = .;         /* define a global symbol at bss start; used by startup code */
+        *(.bss*)
+        *(COMMON)
+
+        . = ALIGN(4);
+        _ebss = .;         /* define a global symbol at bss end; used by startup code and GC */
+    } >RAM
+
+    /* this is to define the start of the heap, and make sure we have a minimum size */
+    .heap :
+    {
+        . = ALIGN(4);
+        . = . + _minimum_heap_size;
+        . = ALIGN(4);
+    } >RAM
+
+    /* this just checks there is enough RAM for the stack */
+    .stack :
+    {
+        . = ALIGN(4);
+        . = . + _minimum_stack_size;
+        . = ALIGN(4);
+    } >RAM
+
+    .ARM.attributes 0 : { *(.ARM.attributes) }
+}