33 lines
696 B
C
33 lines
696 B
C
|
struct mem_param {
|
||
|
|
unsigned char cycle_time;
|
||
|
|
unsigned char divisor;
|
||
|
|
unsigned char tRC;
|
||
|
|
unsigned char tRFC;
|
||
|
|
unsigned dch_memclk;
|
||
|
|
unsigned short dch_tref4k, dch_tref8k;
|
||
|
|
unsigned char dtl_twr;
|
||
|
|
char name[9];
|
||
|
|
};
|
||
|
|
|
||
|
|
static void test(void)
|
||
|
|
{
|
||
|
|
static const struct mem_param param0 = {
|
||
|
|
.name = "166Mhz\r\n",
|
||
|
|
.cycle_time = 0x60,
|
||
|
|
.divisor = (6<<1),
|
||
|
|
.tRC = 0x3C,
|
||
|
|
.tRFC = 0x48,
|
||
|
|
.dch_memclk = 5 << 20,
|
||
|
|
.dch_tref4k = 0x02,
|
||
|
|
.dch_tref8k = 0x0A,
|
||
|
|
.dtl_twr = 3,
|
||
|
|
};
|
||
|
|
int value;
|
||
|
|
unsigned clocks;
|
||
|
|
const struct mem_param *param;
|
||
|
|
param = ¶m0;
|
||
|
|
value = 0x48;
|
||
|
|
#warning "this generates word loads instead of byte loads"
|
||
|
|
clocks = (value + (param->divisor << 1) - 1)/(param->divisor << 1);
|
||
|
|
}
|