LXR coreboot/util/romcc/tests/linux

   1#include "linux_syscall.h"
   2#include "linux_console.h"
   3
   4struct mem_param {
   5        unsigned char cycle_time;
   6        unsigned char divisor;
   7        unsigned char tRC;
   8        unsigned char tRFC;
   9        unsigned dch_memclk;
  10        unsigned short dch_tref4k, dch_tref8k;
  11        unsigned char dtl_twr;
  12        char name[9];
  13};
  14
  15static void test(void)
  16{
  17        static const struct mem_param param0 = {
  18                .name = "166Mhz\r\n",
  19                .cycle_time = 0x60,
  20                .divisor = (6<<1),
  21                .tRC = 0x3C,
  22                .tRFC = 0x48,
  23                .dch_memclk = 5 << 20,
  24                .dch_tref4k = 0x02,
  25                .dch_tref8k = 0x0A,
  26                .dtl_twr = 3,
  27        };
  28        int value;
  29        unsigned clocks;
  30        const struct mem_param *param;
  31        param = &param0;
  32        value = 0x48;
  33        /* This used to generate 32bit loads instead of 8 bit loads */
  34        clocks = (value + (param->divisor << 1) - 1)/(param->divisor << 1);
  35        print_debug("clocks: ");
  36        print_debug_hex32(clocks);
  37        print_debug("\r\n");
  38        _exit(0);
  39}
  40