#define CK_TO_NS(ck) (((ck) * 1000 + SDRAM_CLK / 2) / SDRAM_CLK)
#define NS_TO_CK(ns) (((ns) * SDRAM_CLK + 999) / 1000)
#define NS_TO_CK10(ns) DIV_ROUND_UP(NS_TO_CK(ns), 10)
+#define PS_TO_CK(ps) DIV_ROUND_UP(NS_TO_CK(ps), 1000)
.macro CK_VAL, name, clks, offs, max
.iflt \clks - \offs
#define ADDR_MIRROR 0
#define DDR_TYPE MDMISC_DDR_TYPE_DDR3
-/* 512/1024MiB SDRAM: NT5CB128M16FP-DII */
+/* 512/1024MiB SDRAM: NT5CB128M16FP-DII or MT41K128M16JT-125 */
#if SDRAM_CLK > 666 && SDRAM_CLK <= 800
#define CL_VAL 11
#define CWL_VAL 8
/* MDCFG0 0x0c */
NS_VAL tRFC, 160, 1, 255 /* clks - 1 (0..255) */
CK_MAX tXS, NS_TO_CK(CK_TO_NS(tRFC + 1) + 10), 5, 1, 255 /* clks - 1 (0..255) tRFC + 10 */
-CK_MAX tXP, NS_TO_CK10(75), 3, 1, 7 /* clks - 1 (0..7) */ /* max(3tCK, 7.5ns) */
-CK_MAX tXPDLL, NS_TO_CK(24), 2, 1, 15 /* clks - 1 (0..15) */
-NS_VAL tFAW, 50, 1, 31 /* clks - 1 (0..31) */
+CK_MAX tXP, NS_TO_CK10(75), 3, 1, 7 /* clks - 1 (0..7) */ /* max(3tCK, 7.5ns) (MT41K128M16JT: 6ns) */
+CK_MAX tXPDLL, NS_TO_CK(24), 10, 1, 15 /* clks - 1 (0..15) */
+NS_VAL tFAW, 50, 1, 31 /* clks - 1 (0..31) (MT41K128M16JT: 30ns) */
CK_VAL tCL, CL_VAL, 3, 8 /* clks - 3 (0..8) CAS Latency */
/* MDCFG1 0x10 */
-CK_VAL tRCD, NS_TO_CK10(125), 1, 7 /* clks - 1 (0..7) */ /* 12.5 */
-CK_VAL tRP, NS_TO_CK10(125), 1, 7 /* clks - 1 (0..7) */ /* 12.5 */
-NS_VAL tRC, 50, 1, 31 /* clks - 1 (0..31) */
-CK_VAL tRAS, NS_TO_CK10(375), 1, 31 /* clks - 1 (0..31) */ /* 37.5 */
+CK_VAL tRCD, PS_TO_CK(13750), 1, 7 /* clks - 1 (0..7) */ /* 13.75 (NT5CB128M16FP: 12.5ns) */
+CK_VAL tRP, PS_TO_CK(13750), 1, 7 /* clks - 1 (0..7) */ /* 13.75 (NT5CB128M16FP: 12.5ns) */
+NS_VAL tRC, 50, 1, 31 /* clks - 1 (0..31) (MT41K128M16JT: 49ns) */
+CK_VAL tRAS, NS_TO_CK10(375), 1, 31 /* clks - 1 (0..31) (MT41K128M16JT: 3.5ns) */
CK_VAL tRPA, 1, 0, 1 /* clks (0..1) */
NS_VAL tWR, 15, 1, 15 /* clks - 1 (0..15) */
CK_VAL tMRD, 4, 1, 15 /* clks - 1 (0..15) */
CK_VAL tCWL, CWL_VAL, 2, 6 /* clks - 2 (0..6) */
/* MDCFG2 0x14 */
-CK_VAL tDLLK, 512, 1, 511 /* clks - 1 (0..511) */
+CK_VAL tDLLK, 512, 1, 511 /* clks - 1 (0..511) */ /* (Jedec Standard) */
CK_MAX tRTP, NS_TO_CK10(75), 4, 1, 7 /* clks - 1 (0..7) */ /* max(4tCK, 7.5ns) */
CK_MAX tWTR, NS_TO_CK10(75), 4, 1, 7 /* clks - 1 (0..7) */ /* max(4tCK, 7.5ns) */
-CK_MAX tRRD, NS_TO_CK(10), 4, 1, 7 /* clks - 1 (0..7) */
+CK_MAX tRRD, NS_TO_CK(10), 4, 1, 7 /* clks - 1 (0..7) (MT41K128M16JT: 6ns) */
/* MDOR 0x30 */
CK_MAX tXPR, NS_TO_CK(CK_TO_NS(tRFC + 1) + 10), 5, 1, 255 /* clks - 1 (0..255) max(tRFC + 10, 5CK) */
#define tRST_CKE (DIV_ROUND_UP(500000, MDOR_CLK_PERIOD_ns) + 2)
/* MDOTC 0x08 */
-CK_VAL tAOFPD, NS_TO_CK10(85), 1, 7 /* clks - 1 (0..7) */ /* 8.5ns */
-CK_VAL tAONPD, NS_TO_CK10(85), 1, 7 /* clks - 1 (0..7) */ /* 8.5ns */
+CK_VAL tAOFPD, NS_TO_CK10(85), 1, 7 /* clks - 1 (0..7) */ /* 2ns .. 8.5ns */
+CK_VAL tAONPD, NS_TO_CK10(85), 1, 7 /* clks - 1 (0..7) */ /* 2ns .. 8.5ns */
CK_VAL tANPD, tCWL + 1, 1, 15 /* clks - 1 (0..15) */
CK_VAL tAXPD, tCWL + 1, 1, 15 /* clks - 1 (0..15) */
CK_VAL tODTLon tCWL, 0, 7 /* clks - 1 (0..7) */ /* CWL+AL-2 */