| #include <common.h> |
| #include <asm/arch/dram.h> |
| #include <asm/arch/cpu.h> |
| |
| void mctl_set_timing_params(uint16_t socid, struct dram_para *para) |
| { |
| struct sunxi_mctl_ctl_reg * const mctl_ctl = |
| (struct sunxi_mctl_ctl_reg *)SUNXI_DRAM_CTL0_BASE; |
| |
| u8 tccd = 2; |
| u8 tfaw = max(ns_to_t(50), 4); |
| u8 trrd = max(ns_to_t(10), 2); |
| u8 trcd = max(ns_to_t(24), 2); |
| u8 trc = ns_to_t(70); |
| u8 txp = max(ns_to_t(8), 2); |
| u8 twtr = max(ns_to_t(8), 2); |
| u8 trtp = max(ns_to_t(8), 2); |
| u8 twr = max(ns_to_t(15), 3); |
| u8 trp = max(ns_to_t(27), 2); |
| u8 tras = ns_to_t(42); |
| u16 trefi = ns_to_t(3900) / 32; |
| u16 trfc = ns_to_t(210); |
| |
| u8 tmrw = 5; |
| u8 tmrd = 5; |
| u8 tmod = 12; |
| u8 tcke = 3; |
| u8 tcksrx = 5; |
| u8 tcksre = 5; |
| u8 tckesr = 5; |
| u8 trasmax = 24; |
| |
| u8 tcl = 6; /* CL 12 */ |
| u8 tcwl = 3; /* CWL 6 */ |
| u8 t_rdata_en = 5; |
| u8 wr_latency = 2; |
| |
| u32 tdinit0 = (200 * CONFIG_DRAM_CLK) + 1; /* 200us */ |
| u32 tdinit1 = (100 * CONFIG_DRAM_CLK) / 1000 + 1; /* 100ns */ |
| u32 tdinit2 = (11 * CONFIG_DRAM_CLK) + 1; /* 11us */ |
| u32 tdinit3 = (1 * CONFIG_DRAM_CLK) + 1; /* 1us */ |
| |
| u8 twtp = tcwl + 4 + twr + 1; |
| u8 twr2rd = tcwl + 4 + 1 + twtr; |
| u8 trd2wr = tcl + 4 + 5 - tcwl + 1; |
| |
| /* set mode register */ |
| writel(0xc3, &mctl_ctl->mr[1]); /* nWR=8, BL8 */ |
| writel(0xa, &mctl_ctl->mr[2]); /* RL=12, WL=6 */ |
| writel(0x2, &mctl_ctl->mr[3]); /* 40 0hms PD/PU */ |
| |
| /* set DRAM timing */ |
| writel(DRAMTMG0_TWTP(twtp) | DRAMTMG0_TFAW(tfaw) | |
| DRAMTMG0_TRAS_MAX(trasmax) | DRAMTMG0_TRAS(tras), |
| &mctl_ctl->dramtmg[0]); |
| writel(DRAMTMG1_TXP(txp) | DRAMTMG1_TRTP(trtp) | DRAMTMG1_TRC(trc), |
| &mctl_ctl->dramtmg[1]); |
| writel(DRAMTMG2_TCWL(tcwl) | DRAMTMG2_TCL(tcl) | |
| DRAMTMG2_TRD2WR(trd2wr) | DRAMTMG2_TWR2RD(twr2rd), |
| &mctl_ctl->dramtmg[2]); |
| writel(DRAMTMG3_TMRW(tmrw) | DRAMTMG3_TMRD(tmrd) | DRAMTMG3_TMOD(tmod), |
| &mctl_ctl->dramtmg[3]); |
| writel(DRAMTMG4_TRCD(trcd) | DRAMTMG4_TCCD(tccd) | DRAMTMG4_TRRD(trrd) | |
| DRAMTMG4_TRP(trp), &mctl_ctl->dramtmg[4]); |
| writel(DRAMTMG5_TCKSRX(tcksrx) | DRAMTMG5_TCKSRE(tcksre) | |
| DRAMTMG5_TCKESR(tckesr) | DRAMTMG5_TCKE(tcke), |
| &mctl_ctl->dramtmg[5]); |
| |
| /* set two rank timing */ |
| clrsetbits_le32(&mctl_ctl->dramtmg[8], (0xff << 8) | (0xff << 0), |
| (0x66 << 8) | (0x10 << 0)); |
| |
| /* set PHY interface timing, write latency and read latency configure */ |
| writel((0x2 << 24) | (t_rdata_en << 16) | (0x1 << 8) | |
| (wr_latency << 0), &mctl_ctl->pitmg[0]); |
| |
| /* set PHY timing, PTR0-2 use default */ |
| writel(PTR3_TDINIT0(tdinit0) | PTR3_TDINIT1(tdinit1), &mctl_ctl->ptr[3]); |
| writel(PTR4_TDINIT2(tdinit2) | PTR4_TDINIT3(tdinit3), &mctl_ctl->ptr[4]); |
| |
| /* set refresh timing */ |
| writel(RFSHTMG_TREFI(trefi) | RFSHTMG_TRFC(trfc), &mctl_ctl->rfshtmg); |
| } |
