replace iram vector to vector copy.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1060 bbd45198-f89e-11dd-88c7-29a3b14d5316

bsp/dev3210/dev3210_ram.lds

@@ -16,14 +16,6 @@
 OUTPUT_FORMAT("elf32-tradlittlemips", "elf32-tradlittlemips", "elf32-tradlittlemips")
 OUTPUT_ARCH(mips)
 
-MEMORY
-{
-   /* 16M SDRAM */
-   DRAM : ORIGIN = 0x80200000, LENGTH = 0x01000000
-   /* 16K SRAM  */
-   IRAM : ORIGIN = 0x80000000, LENGTH = 0x00004000
-}
-
 ENTRY(_start)
 SECTIONS
 {
@@ -32,10 +24,9 @@ SECTIONS
     .start :
     {
         *(.start);
-    } > DRAM
+    }
 
     . = ALIGN(4);
-
     .text : 
     {
          *(.text)
@@ -55,10 +46,9 @@ SECTIONS
          KEEP(*(VSymTab))
          __vsymtab_end = .;
          . = ALIGN(4);
-    } > DRAM
+    }
 
     . = ALIGN(4);
-
     .data : 
     {
          *(.data)
@@ -72,30 +62,7 @@ SECTIONS
          
          *(.sdata)
          *(.sdata.*)
-    } > DRAM
-
-    . = ALIGN(4);
-	_iramat = .;
-
-	.iram : AT(_iramat)
-    {
-		_iramstart = .;
-        *(.vectors.1);
-        . = 0x100;
-        *(.vectors.2);
-        . = 0x180;
-        *(.vectors.3);
-        . = 0x200;
-        *(.vectors.4);
-        *(.vectors);
-
-        *(.icode);
-        *(.irodata);
-        *(.idata);
-        KEEP(*(.vectors*))
-		_iramend = .;
-    } > IRAM
-    _iramcopy = LOADADDR(.iram);
+    }
 
     .sbss : 
     {
@@ -104,7 +71,7 @@ SECTIONS
         *(.sbss.*)
         *(.dynsbss)
         *(.scommon)
- 	} > DRAM
+    }
 
     .bss :
     {
@@ -113,8 +80,7 @@ SECTIONS
         *(.dynbss)
         *(COMMON)
         __bss_end = .;
- 	} > DRAM
-	
+    }
     _end = .;
 
     /* Stabs debugging sections.  */

bsp/dev3210/dw.txt

@@ -1,6 +1,11 @@
+# download script for boot loader
 ifaddr dmfe0 192.168.1.100
 load tftp://192.168.1.5/boot_3210 0x80200000
 
+# download script for RT-Thread
 ifaddr dmfe0 192.168.1.100
-load tftp://192.168.1.5/rtthread.elf 0x80200000
-oload tftp://192.168.1.5/rtthread.bin 0x80200000
+load tftp://192.168.1.5/rtthread.elf
+
+# burn script for RT-Thread
+ifaddr dmfe0 192.168.1.100
+devcp tftp://192.168.1.5/rtthread.elf /dev/mtd0

libcpu/mips/loongson/start_gcc.S

@@ -36,19 +36,6 @@ _start:
     li      sp, SYSTEM_STACK
     la      gp, _gp
 
-#if 0
-    /* copy IRAM section */
-    la     t0, _iramcopy
-    la     t1, _iramstart
-    la     t2, _iramend
-_iram_loop:
-    lw     t3, 0(t0)
-    sw     t3, 0(t1)
-    addiu  t1, 4
-    bne    t1, t2, _iram_loop
-    addiu  t0, 4
-#endif
-
     /* clear bss */
     la      t0, __bss_start
     la      t1, __bss_end