property/android_boot.c

   1 #include <common.h>
   2 #include <android_boot.h>
   3 #include <asm/mach-types.h>
   4 void MMU_InvalideICACHEALL(void);
   5 void creat_atags(unsigned taddr, const char *cmdline,unsigned raddr, unsigned rsize)
   6 {
   7         unsigned n = 0;
   8         unsigned *tags = (unsigned *)taddr;
   9
  10         //ATAG_CORE
  11         tags[n++] = 2;
  12         tags[n++] = 0x54410001;
  13
  14         if(rsize) {
  15                 //ATAG_INITRD2
  16                 tags[n++] = 4;
  17                 tags[n++] = 0x54420005;
  18                 tags[n++] = raddr;
  19                 tags[n++] = rsize;
  20         }
  21         if(cmdline && cmdline[0]) {
  22                 const char *src;
  23                 char *dst;
  24                 unsigned len = 0;
  25
  26                 dst = (char*) (tags + n + 2);
  27                 src = cmdline;
  28                 while((*dst++ = *src++)) len++;
  29
  30                 len++;
  31                 len = (len + 3) & (~3);
  32
  33                 // ATAG_CMDLINE
  34                  tags[n++] = 2 + (len / 4);
  35                  tags[n++] = 0x54410009;
  36
  37                  n += (len / 4);
  38          }
  39
  40                  // ATAG_NONE
  41                  tags[n++] = 0;
  42                  tags[n++] = 0;
  43 }
  44
  45 void boot_linux(unsigned kaddr, unsigned taddr)
  46 {
  47         void (*entry)(unsigned,unsigned,unsigned) = (void*) kaddr;
  48
  49 #ifndef CONFIG_SC8810
  50     MMU_InvalideICACHEALL();
  51 #endif
  52         entry(0, machine_arch_type, taddr);
  53 }