DWC2 DMA support

hw/bsp/stm32h7/linker/stm32h743xx_flash.ld

@@ -32,23 +32,24 @@
 /* Entry Point */
 ENTRY(Reset_Handler)
 
-/* Highest address of the user mode stack */
-_estack = 0x20020000;    /* end of RAM */
-/* Generate a link error if heap and stack don't fit into RAM */
-_Min_Heap_Size = 0x200;      /* required amount of heap  */
-_Min_Stack_Size = 0x400; /* required amount of stack */
-
 /* Specify the memory areas */
 MEMORY
 {
-DTCMRAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 128K
-RAM_D1 (xrw)      : ORIGIN = 0x24000000, LENGTH = 512K
-RAM_D2 (xrw)      : ORIGIN = 0x30000000, LENGTH = 288K
-RAM_D3 (xrw)      : ORIGIN = 0x38000000, LENGTH = 64K
-ITCMRAM (xrw)      : ORIGIN = 0x00000000, LENGTH = 64K
-FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 2048K
+    DTCMRAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
+    RAM_D1 (xrw)  : ORIGIN = 0x24000000, LENGTH = 512K
+    RAM_D2 (xrw)  : ORIGIN = 0x30000000, LENGTH = 288K
+    RAM_D3 (xrw)  : ORIGIN = 0x38000000, LENGTH = 64K
+    ITCMRAM (xrw) : ORIGIN = 0x00000000, LENGTH = 64K
+    FLASH (rx)    : ORIGIN = 0x08000000, LENGTH = 2048K
+
 }
 
+/* Highest address of the user mode stack */
+_estack = ORIGIN(RAM_D1) + LENGTH(RAM_D1);    /* end of RAM */
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0x200;      /* required amount of heap  */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
 /* Define output sections */
 SECTIONS
 {
@@ -127,7 +128,7 @@ SECTIONS
 
     . = ALIGN(4);
     _edata = .;        /* define a global symbol at data end */
-  } >DTCMRAM AT> FLASH
+  } >RAM_D1 AT> FLASH
 
 
   /* Uninitialized data section */
@@ -144,7 +145,9 @@ SECTIONS
     . = ALIGN(4);
     _ebss = .;         /* define a global symbol at bss end */
     __bss_end__ = _ebss;
-  } >DTCMRAM
+  } >RAM_D1
+
+
 
   /* User_heap_stack section, used to check that there is enough RAM left */
   ._user_heap_stack :
@@ -155,9 +158,7 @@ SECTIONS
     . = . + _Min_Heap_Size;
     . = . + _Min_Stack_Size;
     . = ALIGN(8);
-  } >DTCMRAM
-
-
+  } >RAM_D1
 
   /* Remove information from the standard libraries */
   /DISCARD/ :

hw/bsp/xmc4000/family.c

@@ -103,6 +103,12 @@ uint32_t board_button_read(void) {
   return BUTTON_STATE_ACTIVE == XMC_GPIO_GetInput(BUTTON_PIN);
 }
 
+size_t board_get_unique_id(uint8_t id[], size_t max_len) {
+  uint8_t const len = tu_min8(16, max_len);
+  memcpy(id, g_chipid, len);
+  return len;
+}
+
 int board_uart_read(uint8_t* buf, int len) {
 #ifdef UART_DEV
   for(int i=0;i<len;i++) {

src/common/tusb_mcu.h

@@ -524,7 +524,7 @@
   #define TUP_DCD_EDPT_ISO_ALLOC
 #endif
 
-#if defined(TUP_USBIP_DWC2)
+#if defined(TUP_USBIP_DWC2) // && CFG_TUD_DWC2_DMA == 0
   #define TUP_MEM_CONST_ADDR
 #endif