We need to store all the ram related cap/map info back to register for each channel after all the init has been done in case some of register was reset during the process.
Signed-off-by: YouMin Chen cym@rock-chips.com Signed-off-by: Kever Yang kever.yang@rock-chips.com ---
Changes in v3: - update commit message
Changes in v2: - fix compile error for non lpddr4 driver
drivers/ram/rockchip/sdram_rk3399.c | 159 ++++++++++++++-------------- 1 file changed, 81 insertions(+), 78 deletions(-)
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index 81fc71c051..ed70137ce7 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -1488,6 +1488,84 @@ static void dram_all_config(struct dram_info *dram, clrsetbits_le32(&dram->cru->glb_rst_con, 0x3, 0x3); }
+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; +} + #if !defined(CONFIG_RAM_RK3399_LPDDR4) static int default_data_training(struct dram_info *dram, u32 channel, u8 rank, struct rk3399_sdram_params *params) @@ -1588,84 +1666,6 @@ 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 @@ -2592,8 +2592,11 @@ static int sdram_init(struct dram_info *dram, }
sdram_print_ddr_info(cap_info, ¶ms->base); + set_memory_map(chan, channel, params); + cap_info->ddrconfig = calculate_ddrconfig(params, channel);
set_ddrconfig(chan, params, channel, cap_info->ddrconfig); + set_cap_relate_config(chan, params, channel); }
if (params->base.num_channels == 0) {