software/liblitedram/sdram.c: move activate/precharge to sdram_write_read_check_test_pattern, change second seed.
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d1f04e67c5
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d4d4ca53b0
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@ -668,6 +668,9 @@ static int sdram_write_read_check_test_pattern(int module, unsigned int seed) {
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}
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}
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}
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}
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/* Activate */
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sdram_activate_test_row();
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/* Write pseudo-random sequence */
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/* Write pseudo-random sequence */
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for(p=0;p<SDRAM_PHY_PHASES;p++)
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for(p=0;p<SDRAM_PHY_PHASES;p++)
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csr_wr_buf_uint8(sdram_dfii_pix_wrdata_addr[p], prs[p], DFII_PIX_DATA_BYTES);
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csr_wr_buf_uint8(sdram_dfii_pix_wrdata_addr[p], prs[p], DFII_PIX_DATA_BYTES);
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@ -686,6 +689,9 @@ static int sdram_write_read_check_test_pattern(int module, unsigned int seed) {
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command_prd(DFII_COMMAND_CAS|DFII_COMMAND_CS|DFII_COMMAND_RDDATA);
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command_prd(DFII_COMMAND_CAS|DFII_COMMAND_CS|DFII_COMMAND_RDDATA);
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cdelay(15);
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cdelay(15);
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/* Precharge */
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sdram_precharge_test_row();
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for(p=0;p<SDRAM_PHY_PHASES;p++) {
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for(p=0;p<SDRAM_PHY_PHASES;p++) {
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/* Read back test pattern */
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/* Read back test pattern */
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csr_rd_buf_uint8(sdram_dfii_pix_rddata_addr[p], tst, DFII_PIX_DATA_BYTES);
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csr_rd_buf_uint8(sdram_dfii_pix_rddata_addr[p], tst, DFII_PIX_DATA_BYTES);
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@ -708,9 +714,6 @@ static int sdram_read_leveling_scan_module(int module, int bitslip, int show)
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int i;
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int i;
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int score;
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int score;
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/* Activate */
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sdram_activate_test_row();
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/* Check test pattern for each delay value */
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/* Check test pattern for each delay value */
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score = 0;
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score = 0;
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if (show)
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if (show)
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@ -723,7 +726,7 @@ static int sdram_read_leveling_scan_module(int module, int bitslip, int show)
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_show = (i%16 == 0) & show;
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_show = (i%16 == 0) & show;
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#endif
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#endif
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working = sdram_write_read_check_test_pattern(module, 42);
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working = sdram_write_read_check_test_pattern(module, 42);
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working &= sdram_write_read_check_test_pattern(module, 43);
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working &= sdram_write_read_check_test_pattern(module, 84);
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if (_show)
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if (_show)
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printf("%d", working);
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printf("%d", working);
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score += working;
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score += working;
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@ -732,9 +735,6 @@ static int sdram_read_leveling_scan_module(int module, int bitslip, int show)
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if (show)
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if (show)
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printf("| ");
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printf("| ");
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/* Precharge */
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sdram_precharge_test_row();
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return score;
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return score;
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}
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}
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@ -746,15 +746,12 @@ static void sdram_read_leveling_module(int module)
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printf("delays: ");
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printf("delays: ");
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/* Activate */
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sdram_activate_test_row();
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/* Find smallest working delay */
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/* Find smallest working delay */
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delay = 0;
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delay = 0;
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sdram_read_leveling_rst_delay(module);
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sdram_read_leveling_rst_delay(module);
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while(1) {
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while(1) {
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working = sdram_write_read_check_test_pattern(module, 42);
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working = sdram_write_read_check_test_pattern(module, 42);
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working &= sdram_write_read_check_test_pattern(module, 43);
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working &= sdram_write_read_check_test_pattern(module, 84);
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if(working)
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if(working)
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break;
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break;
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delay++;
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delay++;
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@ -778,7 +775,7 @@ static void sdram_read_leveling_module(int module)
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/* Find largest working delay */
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/* Find largest working delay */
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while(1) {
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while(1) {
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working = sdram_write_read_check_test_pattern(module, 42);
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working = sdram_write_read_check_test_pattern(module, 42);
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working &= sdram_write_read_check_test_pattern(module, 43);
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working &= sdram_write_read_check_test_pattern(module, 84);
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if(!working)
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if(!working)
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break;
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break;
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delay++;
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delay++;
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@ -797,9 +794,6 @@ static void sdram_read_leveling_module(int module)
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sdram_read_leveling_rst_delay(module);
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sdram_read_leveling_rst_delay(module);
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for(i=0;i<(delay_min+delay_max)/2;i++)
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for(i=0;i<(delay_min+delay_max)/2;i++)
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sdram_read_leveling_inc_delay(module);
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sdram_read_leveling_inc_delay(module);
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/* Precharge */
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sdram_precharge_test_row();
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}
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}
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#endif /* CSR_DDRPHY_BASE */
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#endif /* CSR_DDRPHY_BASE */
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