clrsetbits_le32(&dram->cru->glb_rst_con, 0x3, 0x3);
}
+#if !defined(CONFIG_RAM_RK3399_LPDDR4)
static int default_data_training(struct dram_info *dram, u32 channel, u8 rank,
struct rk3399_sdram_params *params)
{
return data_training(dram, channel, params, training_flag);
}
+#endif
static int switch_to_phy_index1(struct dram_info *dram,
const struct rk3399_sdram_params *params)
return 0;
}
+#if defined(CONFIG_RAM_RK3399_LPDDR4)
+static u32 get_ddr_stride(struct rk3399_pmusgrf_regs *pmusgrf)
+{
+ return ((readl(&pmusgrf->soc_con4) >> 10) & 0x1F);
+}
+
+static void set_ddr_stride(struct rk3399_pmusgrf_regs *pmusgrf, u32 stride)
+{
+ rk_clrsetreg(&pmusgrf->soc_con4, 0x1f << 10, stride << 10);
+}
+
+static void set_cap_relate_config(const struct chan_info *chan,
+ struct rk3399_sdram_params *params,
+ unsigned int channel)
+{
+ u32 *denali_ctl = chan->pctl->denali_ctl;
+ u32 tmp;
+ struct rk3399_msch_timings *noc_timing;
+
+ if (params->base.dramtype == LPDDR3) {
+ tmp = (8 << params->ch[channel].cap_info.bw) /
+ (8 << params->ch[channel].cap_info.dbw);
+
+ /**
+ * memdata_ratio
+ * 1 -> 0, 2 -> 1, 4 -> 2
+ */
+ clrsetbits_le32(&denali_ctl[197], 0x7,
+ (tmp >> 1));
+ clrsetbits_le32(&denali_ctl[198], 0x7 << 8,
+ (tmp >> 1) << 8);
+ }
+
+ noc_timing = ¶ms->ch[channel].noc_timings;
+
+ /*
+ * noc timing bw relate timing is 32 bit, and real bw is 16bit
+ * actually noc reg is setting at function dram_all_config
+ */
+ if (params->ch[channel].cap_info.bw == 16 &&
+ noc_timing->ddrmode.b.mwrsize == 2) {
+ if (noc_timing->ddrmode.b.burstsize)
+ noc_timing->ddrmode.b.burstsize -= 1;
+ noc_timing->ddrmode.b.mwrsize -= 1;
+ noc_timing->ddrtimingc0.b.burstpenalty *= 2;
+ noc_timing->ddrtimingc0.b.wrtomwr *= 2;
+ }
+}
+
+static u32 calculate_ddrconfig(struct rk3399_sdram_params *params, u32 channel)
+{
+ unsigned int cs0_row = params->ch[channel].cap_info.cs0_row;
+ unsigned int col = params->ch[channel].cap_info.col;
+ unsigned int bw = params->ch[channel].cap_info.bw;
+ u16 ddr_cfg_2_rbc[] = {
+ /*
+ * [6] highest bit col
+ * [5:3] max row(14+n)
+ * [2] insertion row
+ * [1:0] col(9+n),col, data bus 32bit
+ *
+ * highbitcol, max_row, insertion_row, col
+ */
+ ((0 << 6) | (2 << 3) | (0 << 2) | 0), /* 0 */
+ ((0 << 6) | (2 << 3) | (0 << 2) | 1), /* 1 */
+ ((0 << 6) | (1 << 3) | (0 << 2) | 2), /* 2 */
+ ((0 << 6) | (0 << 3) | (0 << 2) | 3), /* 3 */
+ ((0 << 6) | (2 << 3) | (1 << 2) | 1), /* 4 */
+ ((0 << 6) | (1 << 3) | (1 << 2) | 2), /* 5 */
+ ((1 << 6) | (0 << 3) | (0 << 2) | 2), /* 6 */
+ ((1 << 6) | (1 << 3) | (0 << 2) | 2), /* 7 */
+ };
+ u32 i;
+
+ col -= (bw == 2) ? 0 : 1;
+ col -= 9;
+
+ for (i = 0; i < 4; i++) {
+ if ((col == (ddr_cfg_2_rbc[i] & 0x3)) &&
+ (cs0_row <= (((ddr_cfg_2_rbc[i] >> 3) & 0x7) + 14)))
+ break;
+ }
+
+ if (i >= 4)
+ i = -EINVAL;
+
+ return i;
+}
+
+/**
+ * read mr_num mode register
+ * rank = 1: cs0
+ * rank = 2: cs1
+ */
+static int read_mr(struct rk3399_ddr_pctl_regs *ddr_pctl_regs, u32 rank,
+ u32 mr_num, u32 *buf)
+{
+ s32 timeout = 100;
+
+ writel(((1 << 16) | (((rank == 2) ? 1 : 0) << 8) | mr_num) << 8,
+ &ddr_pctl_regs->denali_ctl[118]);
+
+ while (0 == (readl(&ddr_pctl_regs->denali_ctl[203]) &
+ ((1 << 21) | (1 << 12)))) {
+ udelay(1);
+
+ if (timeout <= 0) {
+ printf("%s: pctl timeout!\n", __func__);
+ return -ETIMEDOUT;
+ }
+
+ timeout--;
+ }
+
+ if (!(readl(&ddr_pctl_regs->denali_ctl[203]) & (1 << 12))) {
+ *buf = readl(&ddr_pctl_regs->denali_ctl[119]) & 0xFF;
+ } else {
+ printf("%s: read mr failed with 0x%x status\n", __func__,
+ readl(&ddr_pctl_regs->denali_ctl[17]) & 0x3);
+ *buf = 0;
+ }
+
+ setbits_le32(&ddr_pctl_regs->denali_ctl[205], (1 << 21) | (1 << 12));
+
+ return 0;
+}
+
+static int lpddr4_mr_detect(struct dram_info *dram, u32 channel, u8 rank,
+ struct rk3399_sdram_params *params)
+{
+ u64 cs0_cap;
+ u32 stride;
+ u32 cs = 0, col = 0, bk = 0, bw = 0, row_3_4 = 0;
+ u32 cs0_row = 0, cs1_row = 0, ddrconfig = 0;
+ u32 mr5, mr12, mr14;
+ struct chan_info *chan = &dram->chan[channel];
+ struct rk3399_ddr_pctl_regs *ddr_pctl_regs = chan->pctl;
+ void __iomem *addr = NULL;
+ int ret = 0;
+ u32 val;
+
+ stride = get_ddr_stride(dram->pmusgrf);
+
+ if (params->ch[channel].cap_info.col == 0) {
+ ret = -EPERM;
+ goto end;
+ }
+
+ cs = params->ch[channel].cap_info.rank;
+ col = params->ch[channel].cap_info.col;
+ bk = params->ch[channel].cap_info.bk;
+ bw = params->ch[channel].cap_info.bw;
+ row_3_4 = params->ch[channel].cap_info.row_3_4;
+ cs0_row = params->ch[channel].cap_info.cs0_row;
+ cs1_row = params->ch[channel].cap_info.cs1_row;
+ ddrconfig = params->ch[channel].cap_info.ddrconfig;
+
+ /* 2GB */
+ params->ch[channel].cap_info.rank = 2;
+ params->ch[channel].cap_info.col = 10;
+ params->ch[channel].cap_info.bk = 3;
+ params->ch[channel].cap_info.bw = 2;
+ params->ch[channel].cap_info.row_3_4 = 0;
+ params->ch[channel].cap_info.cs0_row = 15;
+ params->ch[channel].cap_info.cs1_row = 15;
+ params->ch[channel].cap_info.ddrconfig = 1;
+
+ set_memory_map(chan, channel, params);
+ params->ch[channel].cap_info.ddrconfig =
+ calculate_ddrconfig(params, channel);
+ set_ddrconfig(chan, params, channel,
+ params->ch[channel].cap_info.ddrconfig);
+ set_cap_relate_config(chan, params, channel);
+
+ cs0_cap = (1 << (params->ch[channel].cap_info.bw
+ + params->ch[channel].cap_info.col
+ + params->ch[channel].cap_info.bk
+ + params->ch[channel].cap_info.cs0_row));
+
+ if (params->ch[channel].cap_info.row_3_4)
+ cs0_cap = cs0_cap * 3 / 4;
+
+ if (channel == 0)
+ set_ddr_stride(dram->pmusgrf, 0x17);
+ else
+ set_ddr_stride(dram->pmusgrf, 0x18);
+
+ /* read and write data to DRAM, avoid be optimized by compiler. */
+ if (rank == 1)
+ addr = (void __iomem *)0x100;
+ else if (rank == 2)
+ addr = (void __iomem *)(cs0_cap + 0x100);
+
+ val = readl(addr);
+ writel(val + 1, addr);
+
+ read_mr(ddr_pctl_regs, rank, 5, &mr5);
+ read_mr(ddr_pctl_regs, rank, 12, &mr12);
+ read_mr(ddr_pctl_regs, rank, 14, &mr14);
+
+ if (mr5 == 0 || mr12 != 0x4d || mr14 != 0x4d) {
+ ret = -EINVAL;
+ goto end;
+ }
+end:
+ params->ch[channel].cap_info.rank = cs;
+ params->ch[channel].cap_info.col = col;
+ params->ch[channel].cap_info.bk = bk;
+ params->ch[channel].cap_info.bw = bw;
+ params->ch[channel].cap_info.row_3_4 = row_3_4;
+ params->ch[channel].cap_info.cs0_row = cs0_row;
+ params->ch[channel].cap_info.cs1_row = cs1_row;
+ params->ch[channel].cap_info.ddrconfig = ddrconfig;
+
+ set_ddr_stride(dram->pmusgrf, stride);
+
+ return ret;
+}
+#endif /* CONFIG_RAM_RK3399_LPDDR4 */
+
static unsigned char calculate_stride(struct rk3399_sdram_params *params)
{
unsigned int stride = params->base.stride;
#endif
static const struct sdram_rk3399_ops rk3399_ops = {
+#if !defined(CONFIG_RAM_RK3399_LPDDR4)
.data_training = default_data_training,
+#else
+ .data_training = lpddr4_mr_detect,
+#endif
};
static int rk3399_dmc_init(struct udevice *dev)
projects / oweals / u-boot.git / blobdiff