git.zerfleddert.de Git - proxmark3-svn/blob - bootrom/fromflash.c

   1 //-----------------------------------------------------------------------------
   2 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   3 // at your option, any later version. See the LICENSE.txt file for the text of
   4 // the license.
   5 //-----------------------------------------------------------------------------
   6 // Helper function for launching the bootloader from FLASH
   7 //-----------------------------------------------------------------------------
   8
   9 #include <proxmark3.h>
  10
  11 extern char __bootphase2_src_start__, __bootphase2_start__, __bootphase2_end__;
  12 void __attribute__((section(".bootphase1"))) CopyBootToRAM(void)
  13 {
  14         int i;
  15
  16         volatile uint32_t *s = (volatile uint32_t *)&__bootphase2_src_start__;
  17         volatile uint32_t *d = (volatile uint32_t *)&__bootphase2_start__;
  18         unsigned int l = (int)&__bootphase2_end__ - (int)&__bootphase2_start__;
  19
  20         for(i = 0; i < l/sizeof(uint32_t); i++) *d++ = *s++;
  21 }