util/romcc/tests/simple_test46.c

   1 static void spd_set_memclk(void)
   2 {
   3         static const int indicies[] = { 26, 23, 9 };
   4         int new_cycle_time, new_latency;
   5         int index;
   6         unsigned min_cycle_time, min_latency;
   7         unsigned device;
   8
   9         min_cycle_time = 0x50;
  10         min_latency = 2;
  11         device = 0x50;
  12         new_cycle_time = 0xa0;
  13         new_latency = 5;
  14
  15         for(index = 0; index < 3; index++) {
  16                 unsigned long loops;
  17                 unsigned long address;
  18                 address = indicies[index];
  19                 loops = 1000000;
  20                 do {
  21                 } while(--loops);
  22                 if (loops < 0) {
  23                         continue;
  24                 }
  25
  26                 __builtin_outb(device, 0x10e4);
  27                 __builtin_outb(address, 0x10e8);
  28
  29                 loops = 1000000;
  30                 if ((loops?0:-1) < 0) {
  31                         continue;
  32                 }
  33         }
  34
  35         if (new_cycle_time > min_cycle_time) {
  36                 min_cycle_time = new_cycle_time;
  37         }
  38         if (new_latency > min_latency) {
  39                 min_latency = new_latency;
  40         }
  41 }