1、modify the 'link.lds' file accroding to sdk;2、add irq enable and disable function

Ubiquitous/XiZi_AIoT/services/boards/imx6q-sabrelite/link.lds

@@ -1,17 +1,88 @@
 
 
-STACK_SIZE =  4096;
+STACK_SIZE =  48*1024;
+L1_PAGE_TABLE_SIZE = 16K;
+RAM_VECTORS_SIZE = 72;
 
+OUTPUT_FORMAT("elf32-littlearm")
 OUTPUT_ARCH(arm)
 
+MEMORY
+{
+    OCRAM (rwx) : ORIGIN = 0x00900000, LENGTH = 256K
+    DDR (rwx)   : ORIGIN = 0x10000000, LENGTH = 2048M
+}
+
 SECTIONS
 {
-    . = 0x80100000;
+/*
+ * -- OCRAM --
+ *
+ * Nothing in OCRAM can be loaded at boot, because the boot image must be a contiguous
+ * region of memory.
+ */
+    /* MMU L1 page table */
+    .l1_page_table (NOLOAD) :
+    {
+        __l1_page_table_start = .;
+        . += L1_PAGE_TABLE_SIZE;
+    } > OCRAM
+
+    /* allocate a heap in ocram */
+    .heap.ocram (NOLOAD) : ALIGN(4)
+    {
+        __heap_ocram_start = .;
+        . += LENGTH(OCRAM) - L1_PAGE_TABLE_SIZE - RAM_VECTORS_SIZE ;
+        __heap_ocram_end = .;
+    } > OCRAM
+    
+    /* RAM vector table comes at the end of OCRAM */
+    .ram_vectors (ORIGIN(OCRAM) + LENGTH(OCRAM) - RAM_VECTORS_SIZE) (NOLOAD) :
+    {
+        __ram_vectors_start = .;
+        . += RAM_VECTORS_SIZE;
+        __ram_vectors_end = .;
+    } > OCRAM    
+
+/*
+ * -- DDR --
+ */
+
+    /* -- read-only sections -- */
+    
+    _start_image_add = ORIGIN(DDR);
+    
+    .ivt (ORIGIN(DDR)) :
+    {
+        . = . + 0x400;
+        *(.ivt)
+    } > DDR
+    
+    .boot_data :
+    {
+        __start_boot_data = .;
+        *(.boot_data)
+    } > DDR
+    
+    /* aligned to ease the hexdump read of generated binary */ 
+    .dcd_hdr : ALIGN(16)
+    {
+        __start_dcd = .;
+        *(.dcd_hdr)
+    } > DDR
+    .dcd_wrt_cmd :
+    {
+        *(.dcd_wrt_cmd)
+    } > DDR
+    .dcd_data :
+    {
+        *(.dcd_data)
+    } > DDR
 
     __text_start = .;
     .text :
     {
-        *(.vectors)
+        *(.startup)
         *(.text)
         *(.text.*)
 
@@ -23,11 +94,14 @@ SECTIONS
         KEEP(*(.isrtbl))
         __isrtbl_end = .;
         . = ALIGN(4);
-    }
+    } > DDR
     __text_end = .;
 
     __rodata_start = .;
-    .rodata   : { *(.rodata) *(.rodata.*) }
+    .rodata  : 
+    {
+        *(.rodata) *(.rodata.*) 
+    } > DDR
     __rodata_end = .;
 
     . = ALIGN(4);
@@ -37,7 +111,7 @@ SECTIONS
         KEEP(*(SORT(.ctors.*)))
         KEEP(*(.ctors))
         PROVIDE(__ctors_end__ = .);
-    }
+    } > DDR
 
     .dtors :
     {
@@ -45,14 +119,14 @@ SECTIONS
         KEEP(*(SORT(.dtors.*)))
         KEEP(*(.dtors))
         PROVIDE(__dtors_end__ = .);
-    }
+    } > DDR
 
-    . = ALIGN(16 * 1024);
+    /* . = ALIGN(16 * 1024);
     .l1_page_table :
     {
         __l1_page_table_start = .;
         . += 16K;
-    }
+    } */
 
     . = ALIGN(8);
     __data_start = .;
@@ -60,7 +134,7 @@ SECTIONS
     {
         *(.data)
         *(.data.*)
-    }
+    } > DDR
     __data_end = .;
 
     . = ALIGN(8);
@@ -71,7 +145,7 @@ SECTIONS
         *(.bss.*)
         *(COMMON)
         . = ALIGN(4);
-    }
+    } > DDR
     . = ALIGN(4);
     __bss_end = .;
 
@@ -81,7 +155,7 @@ SECTIONS
         . += STACK_SIZE;
         __stacks_end = .;
         stack_top = .;
-    }
+    } > DDR
 
     /* Stabs debugging sections.  */
     .stab 0 : { *(.stab) }