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soc/software/bios/sdram: improve sdrlevel readibility

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This commit is contained in:
Florent Kermarrec 2019-02-25 14:37:31 +01:00
parent 6a980781d3
commit 36772b75f6
1 changed files with 10 additions and 10 deletions
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20
litex/soc/software/bios/sdram.c
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@ -762,7 +762,7 @@ int memtest(void)
#ifdef CSR_DDRPHY_BASE #ifdef CSR_DDRPHY_BASE
int sdrlevel(void) int sdrlevel(void)
{ {
int i, j; int module;
int bitslip; int bitslip;
int score; int score;
int best_score; int best_score;
@ -784,14 +784,14 @@ int sdrlevel(void)
#endif #endif
printf("Read leveling:\n"); printf("Read leveling:\n");
for(i=0; i<NBMODULES; i++) { for(module=0; module<NBMODULES; module++) {
/* scan possible read windows */ /* scan possible read windows */
best_score = 0; best_score = 0;
best_bitslip = 0; best_bitslip = 0;
for(bitslip=0; bitslip<ERR_DDRPHY_BITSLIP; bitslip++) { for(bitslip=0; bitslip<ERR_DDRPHY_BITSLIP; bitslip++) {
/* compute score */ /* compute score */
score = read_level_scan(i, bitslip); score = read_level_scan(module, bitslip);
read_level(i); read_level(module);
printf("\n"); printf("\n");
if (score > best_score) { if (score > best_score) {
best_bitslip = bitslip; best_bitslip = bitslip;
@ -801,17 +801,17 @@ int sdrlevel(void)
if (bitslip == ERR_DDRPHY_BITSLIP-1) if (bitslip == ERR_DDRPHY_BITSLIP-1)
break; break;
/* increment bitslip */ /* increment bitslip */
read_bitslip_inc(i); read_bitslip_inc(module);
} }
/* select best read window */ /* select best read window */
printf("best: m%d, b%d ", i, best_bitslip); printf("best: m%d, b%d ", module, best_bitslip);
read_bitslip_rst(i); read_bitslip_rst(module);
for (j=0; j<best_bitslip; j++) for (bitslip=0; bitslip<best_bitslip; bitslip++)
read_bitslip_inc(i); read_bitslip_inc(module);
/* re-do leveling on best read window*/ /* re-do leveling on best read window*/
read_level(i); read_level(module);
printf("\n"); printf("\n");
} }