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 pcount;
   9         unsigned *tags = (unsigned *)taddr;
  10
  11         //ATAG_CORE
  12         tags[n++] = 2;
  13         tags[n++] = 0x54410001;
  14
  15         if(rsize) {
  16                 //ATAG_INITRD2
  17                 tags[n++] = 4;
  18                 tags[n++] = 0x54420005;
  19                 tags[n++] = raddr;
  20                 tags[n++] = rsize;
  21         }
  22         if(cmdline && cmdline[0]) {
  23                 const char *src;
  24                 char *dst;
  25                 unsigned len = 0;
  26
  27                 dst = (char*) (tags + n + 2);
  28                 src = cmdline;
  29                 while((*dst++ = *src++)) len++;
  30
  31                 len++;
  32                 len = (len + 3) & (~3);
  33
  34                 // ATAG_CMDLINE
  35                  tags[n++] = 2 + (len / 4);
  36                  tags[n++] = 0x54410009;
  37
  38                  n += (len / 4);
  39          }
  40
  41                  // ATAG_NONE
  42                  tags[n++] = 0;
  43                  tags[n++] = 0;
  44 }
  45
  46 void boot_linux(unsigned kaddr, unsigned taddr)
  47 {
  48         void (*entry)(unsigned,unsigned,unsigned) = (void*) kaddr;
  49
  50 #ifndef CONFIG_SC8810
  51     MMU_InvalideICACHEALL();
  52 #endif
  53         entry(0, machine_arch_type, taddr);
  54 }