| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <device/mmio.h> |
| #include <console/console.h> |
| #include <delay.h> |
| #include <reset.h> |
| #include <soc/addressmap.h> |
| #include <soc/clock.h> |
| #include <soc/sdram.h> |
| #include <soc/grf.h> |
| #include <soc/soc.h> |
| #include <timer.h> |
| #include <types.h> |
| |
| #define DDR_PI_OFFSET 0x800 |
| #define DDR_PHY_OFFSET 0x2000 |
| #define DDRC0_PI_BASE_ADDR (DDRC0_BASE_ADDR + DDR_PI_OFFSET) |
| #define DDRC0_PHY_BASE_ADDR (DDRC0_BASE_ADDR + DDR_PHY_OFFSET) |
| #define DDRC1_PI_BASE_ADDR (DDRC1_BASE_ADDR + DDR_PI_OFFSET) |
| #define DDRC1_PHY_BASE_ADDR (DDRC1_BASE_ADDR + DDR_PHY_OFFSET) |
| |
| static struct rk3399_ddr_pctl_regs * const rk3399_ddr_pctl[2] = { |
| (void *)DDRC0_BASE_ADDR, (void *)DDRC1_BASE_ADDR }; |
| static struct rk3399_ddr_pi_regs * const rk3399_ddr_pi[2] = { |
| (void *)DDRC0_PI_BASE_ADDR, (void *)DDRC1_PI_BASE_ADDR }; |
| static struct rk3399_ddr_publ_regs * const rk3399_ddr_publ[2] = { |
| (void *)DDRC0_PHY_BASE_ADDR, (void *)DDRC1_PHY_BASE_ADDR }; |
| static struct rk3399_msch_regs * const rk3399_msch[2] = { |
| (void *)SERVER_MSCH0_BASE_ADDR, (void *)SERVER_MSCH1_BASE_ADDR }; |
| static struct rk3399_ddr_cic_regs *const rk3399_ddr_cic = (void *)CIC_BASE_ADDR; |
| |
| /* |
| * sys_reg bitfield struct |
| * [31] row_3_4_ch1 |
| * [30] row_3_4_ch0 |
| * [29:28] chinfo |
| * [27] rank_ch1 |
| * [26:25] col_ch1 |
| * [24] bk_ch1 |
| * [23:22] cs0_row_ch1 |
| * [21:20] cs1_row_ch1 |
| * [19:18] bw_ch1 |
| * [17:16] dbw_ch1; |
| * [15:13] ddrtype |
| * [12] channelnum |
| * [11] rank_ch0 |
| * [10:9] col_ch0 |
| * [8] bk_ch0 |
| * [7:6] cs0_row_ch0 |
| * [5:4] cs1_row_ch0 |
| * [3:2] bw_ch0 |
| * [1:0] dbw_ch0 |
| */ |
| #define SYS_REG_ENC_ROW_3_4(n, ch) ((n) << (30 + (ch))) |
| #define SYS_REG_DEC_ROW_3_4(n, ch) ((n >> (30 + ch)) & 0x1) |
| #define SYS_REG_ENC_CHINFO(ch) (1 << (28 + (ch))) |
| #define SYS_REG_ENC_DDRTYPE(n) ((n) << 13) |
| #define SYS_REG_ENC_NUM_CH(n) (((n) - 1) << 12) |
| #define SYS_REG_DEC_NUM_CH(n) (1 + ((n >> 12) & 0x1)) |
| #define SYS_REG_ENC_RANK(n, ch) (((n) - 1) << (11 + ((ch) * 16))) |
| #define SYS_REG_DEC_RANK(n, ch) (1 + ((n >> (11 + 16 * ch)) & 0x1)) |
| #define SYS_REG_ENC_COL(n, ch) (((n) - 9) << (9 + ((ch) * 16))) |
| #define SYS_REG_DEC_COL(n, ch) (9 + ((n >> (9 + 16 * ch)) & 0x3)) |
| #define SYS_REG_ENC_BK(n, ch) (((n) == 3 ? 0 : 1) \ |
| << (8 + ((ch) * 16))) |
| #define SYS_REG_DEC_BK(n, ch) (3 - ((n >> (8 + 16 * ch)) & 0x1)) |
| #define SYS_REG_ENC_CS0_ROW(n, ch) (((n) - 13) << (6 + ((ch) * 16))) |
| #define SYS_REG_DEC_CS0_ROW(n, ch) (13 + ((n >> (6 + 16 * ch)) & 0x3)) |
| #define SYS_REG_ENC_CS1_ROW(n, ch) (((n) - 13) << (4 + ((ch) * 16))) |
| #define SYS_REG_DEC_CS1_ROW(n, ch) (13 + ((n >> (4 + 16 * ch)) & 0x3)) |
| #define SYS_REG_ENC_BW(n, ch) ((2 >> (n)) << (2 + ((ch) * 16))) |
| #define SYS_REG_DEC_BW(n, ch) (2 >> ((n >> (2 + 16 * ch)) & 0x3)) |
| #define SYS_REG_ENC_DBW(n, ch) ((2 >> (n)) << (0 + ((ch) * 16))) |
| #define SYS_REG_DEC_DBW(n, ch) (2 >> ((n >> (0 + 16 * ch)) & 0x3)) |
| |
| #define DDR_STRIDE(n) write32(&rk3399_pmusgrf->soc_con4,\ |
| (0x1F << (10 + 16)) | (n << 10)) |
| |
| #define PRESET_SGRF_HOLD(n) ((0x1 << (6+16)) | ((n) << 6)) |
| #define PRESET_GPIO0_HOLD(n) ((0x1 << (7+16)) | ((n) << 7)) |
| #define PRESET_GPIO1_HOLD(n) ((0x1 << (8+16)) | ((n) << 8)) |
| |
| #define PHY_DRV_ODT_Hi_Z (0x0) |
| #define PHY_DRV_ODT_240 (0x1) |
| #define PHY_DRV_ODT_120 (0x8) |
| #define PHY_DRV_ODT_80 (0x9) |
| #define PHY_DRV_ODT_60 (0xc) |
| #define PHY_DRV_ODT_48 (0xd) |
| #define PHY_DRV_ODT_40 (0xe) |
| #define PHY_DRV_ODT_34_3 (0xf) |
| |
| #define MAX_RANKS_PER_CHANNEL 4 |
| |
| static void copy_to_reg(u32 *dest, const u32 *src, u32 n) |
| { |
| int i; |
| |
| for (i = 0; i < n / sizeof(u32); i++) { |
| write32(dest, *src); |
| src++; |
| dest++; |
| } |
| } |
| |
| static void phy_pctrl_reset(u32 channel) |
| { |
| rkclk_ddr_reset(channel, 1, 1); |
| udelay(10); |
| |
| rkclk_ddr_reset(channel, 1, 0); |
| udelay(10); |
| |
| rkclk_ddr_reset(channel, 0, 0); |
| udelay(10); |
| } |
| |
| static void phy_dll_bypass_set(struct rk3399_ddr_publ_regs *ddr_publ_regs, |
| u32 freq) |
| { |
| u32 *denali_phy = ddr_publ_regs->denali_phy; |
| |
| if (freq <= 125*MHz) { |
| /* phy_sw_master_mode_X PHY_86/214/342/470 4bits offset_8 */ |
| setbits32(&denali_phy[86], (0x3 << 2) << 8); |
| setbits32(&denali_phy[214], (0x3 << 2) << 8); |
| setbits32(&denali_phy[342], (0x3 << 2) << 8); |
| setbits32(&denali_phy[470], (0x3 << 2) << 8); |
| |
| /* phy_adrctl_sw_master_mode PHY_547/675/803 4bits offset_16 */ |
| setbits32(&denali_phy[547], (0x3 << 2) << 16); |
| setbits32(&denali_phy[675], (0x3 << 2) << 16); |
| setbits32(&denali_phy[803], (0x3 << 2) << 16); |
| } else { |
| /* phy_sw_master_mode_X PHY_86/214/342/470 4bits offset_8 */ |
| clrbits32(&denali_phy[86], (0x3 << 2) << 8); |
| clrbits32(&denali_phy[214], (0x3 << 2) << 8); |
| clrbits32(&denali_phy[342], (0x3 << 2) << 8); |
| clrbits32(&denali_phy[470], (0x3 << 2) << 8); |
| |
| /* phy_adrctl_sw_master_mode PHY_547/675/803 4bits offset_16 */ |
| clrbits32(&denali_phy[547], (0x3 << 2) << 16); |
| clrbits32(&denali_phy[675], (0x3 << 2) << 16); |
| clrbits32(&denali_phy[803], (0x3 << 2) << 16); |
| } |
| } |
| |
| static void set_memory_map(u32 channel, const struct rk3399_sdram_params *params) |
| { |
| const struct rk3399_sdram_channel *sdram_ch = ¶ms->ch[channel]; |
| u32 *denali_ctl = rk3399_ddr_pctl[channel]->denali_ctl; |
| u32 *denali_pi = rk3399_ddr_pi[channel]->denali_pi; |
| u32 cs_map; |
| u32 reduc; |
| u32 row; |
| |
| if ((sdram_ch->ddrconfig < 2) || (sdram_ch->ddrconfig == 4)) |
| row = 16; |
| else if (sdram_ch->ddrconfig == 3) |
| row = 14; |
| else |
| row = 15; |
| |
| cs_map = (sdram_ch->rank > 1) ? 3 : 1; |
| reduc = (sdram_ch->bw == 2) ? 0 : 1; |
| |
| clrsetbits32(&denali_ctl[191], 0xF, (12 - sdram_ch->col)); |
| clrsetbits32(&denali_ctl[190], (0x3 << 16) | (0x7 << 24), |
| ((3 - sdram_ch->bk) << 16) | |
| ((16 - row) << 24)); |
| |
| clrsetbits32(&denali_ctl[196], 0x3 | (1 << 16), |
| cs_map | (reduc << 16)); |
| |
| /* PI_199 PI_COL_DIFF:RW:0:4 */ |
| clrsetbits32(&denali_pi[199], 0xF, (12 - sdram_ch->col)); |
| |
| /* PI_155 PI_ROW_DIFF:RW:24:3 PI_BANK_DIFF:RW:16:2 */ |
| clrsetbits32(&denali_pi[155], (0x3 << 16) | (0x7 << 24), |
| ((3 - sdram_ch->bk) << 16) | |
| ((16 - row) << 24)); |
| /* PI_41 PI_CS_MAP:RW:24:4 */ |
| clrsetbits32(&denali_pi[41], 0xf << 24, cs_map << 24); |
| if ((sdram_ch->rank == 1) && (params->dramtype == DDR3)) |
| write32(&denali_pi[34], 0x2EC7FFFF); |
| } |
| |
| static void set_ds_odt(u32 channel, const struct rk3399_sdram_params *params) |
| { |
| u32 *denali_phy = rk3399_ddr_publ[channel]->denali_phy; |
| |
| u32 tsel_idle_en, tsel_wr_en, tsel_rd_en; |
| u32 tsel_idle_select_p, tsel_wr_select_p, tsel_rd_select_p; |
| u32 ca_tsel_wr_select_p, ca_tsel_wr_select_n; |
| u32 tsel_idle_select_n, tsel_wr_select_n, tsel_rd_select_n; |
| u32 reg_value; |
| |
| if (params->dramtype == LPDDR4) { |
| tsel_rd_select_p = PHY_DRV_ODT_Hi_Z; |
| tsel_rd_select_n = PHY_DRV_ODT_240; |
| |
| tsel_wr_select_p = PHY_DRV_ODT_40; |
| tsel_wr_select_n = PHY_DRV_ODT_40; |
| |
| tsel_idle_select_p = PHY_DRV_ODT_Hi_Z; |
| tsel_idle_select_n = PHY_DRV_ODT_240; |
| |
| ca_tsel_wr_select_p = PHY_DRV_ODT_40; |
| ca_tsel_wr_select_n = PHY_DRV_ODT_40; |
| } else if (params->dramtype == LPDDR3) { |
| tsel_rd_select_p = PHY_DRV_ODT_240; |
| tsel_rd_select_n = PHY_DRV_ODT_Hi_Z; |
| |
| tsel_wr_select_p = PHY_DRV_ODT_34_3; |
| tsel_wr_select_n = PHY_DRV_ODT_34_3; |
| |
| tsel_idle_select_p = PHY_DRV_ODT_240; |
| tsel_idle_select_n = PHY_DRV_ODT_Hi_Z; |
| |
| ca_tsel_wr_select_p = PHY_DRV_ODT_48; |
| ca_tsel_wr_select_n = PHY_DRV_ODT_48; |
| } else { |
| tsel_rd_select_p = PHY_DRV_ODT_240; |
| tsel_rd_select_n = PHY_DRV_ODT_240; |
| |
| tsel_wr_select_p = PHY_DRV_ODT_34_3; |
| tsel_wr_select_n = PHY_DRV_ODT_34_3; |
| |
| tsel_idle_select_p = PHY_DRV_ODT_240; |
| tsel_idle_select_n = PHY_DRV_ODT_240; |
| |
| ca_tsel_wr_select_p = PHY_DRV_ODT_34_3; |
| ca_tsel_wr_select_n = PHY_DRV_ODT_34_3; |
| } |
| |
| if (params->odt == 1) |
| tsel_rd_en = 1; |
| else |
| tsel_rd_en = 0; |
| |
| tsel_wr_en = 0; |
| tsel_idle_en = 0; |
| |
| /* |
| * phy_dq_tsel_select_X 24bits DENALI_PHY_6/134/262/390 offset_0 |
| * sets termination values for read/idle cycles and drive strength |
| * for write cycles for DQ/DM |
| */ |
| reg_value = tsel_rd_select_n | (tsel_rd_select_p << 0x4) | |
| (tsel_wr_select_n << 8) | (tsel_wr_select_p << 12) | |
| (tsel_idle_select_n << 16) | (tsel_idle_select_p << 20); |
| clrsetbits32(&denali_phy[6], 0xffffff, reg_value); |
| clrsetbits32(&denali_phy[134], 0xffffff, reg_value); |
| clrsetbits32(&denali_phy[262], 0xffffff, reg_value); |
| clrsetbits32(&denali_phy[390], 0xffffff, reg_value); |
| |
| /* |
| * phy_dqs_tsel_select_X 24bits DENALI_PHY_7/135/263/391 offset_0 |
| * sets termination values for read/idle cycles and drive strength |
| * for write cycles for DQS |
| */ |
| clrsetbits32(&denali_phy[7], 0xffffff, reg_value); |
| clrsetbits32(&denali_phy[135], 0xffffff, reg_value); |
| clrsetbits32(&denali_phy[263], 0xffffff, reg_value); |
| clrsetbits32(&denali_phy[391], 0xffffff, reg_value); |
| |
| /* phy_adr_tsel_select_ 8bits DENALI_PHY_544/672/800 offset_0 */ |
| reg_value = ca_tsel_wr_select_n | (ca_tsel_wr_select_p << 0x4); |
| clrsetbits32(&denali_phy[544], 0xff, reg_value); |
| clrsetbits32(&denali_phy[672], 0xff, reg_value); |
| clrsetbits32(&denali_phy[800], 0xff, reg_value); |
| |
| /* phy_pad_addr_drive 8bits DENALI_PHY_928 offset_0 */ |
| clrsetbits32(&denali_phy[928], 0xff, reg_value); |
| |
| /* phy_pad_rst_drive 8bits DENALI_PHY_937 offset_0 */ |
| clrsetbits32(&denali_phy[937], 0xff, reg_value); |
| |
| /* phy_pad_cke_drive 8bits DENALI_PHY_935 offset_0 */ |
| clrsetbits32(&denali_phy[935], 0xff, reg_value); |
| |
| /* phy_pad_cs_drive 8bits DENALI_PHY_939 offset_0 */ |
| clrsetbits32(&denali_phy[939], 0xff, reg_value); |
| |
| /* phy_pad_clk_drive 8bits DENALI_PHY_929 offset_0 */ |
| clrsetbits32(&denali_phy[929], 0xff, reg_value); |
| |
| /* phy_pad_fdbk_drive 23bit DENALI_PHY_924/925 */ |
| clrsetbits32(&denali_phy[924], 0xff, |
| tsel_wr_select_n | (tsel_wr_select_p << 4)); |
| clrsetbits32(&denali_phy[925], 0xff, |
| tsel_rd_select_n | (tsel_rd_select_p << 4)); |
| |
| /* phy_dq_tsel_enable_X 3bits DENALI_PHY_5/133/261/389 offset_16 */ |
| reg_value = (tsel_rd_en | (tsel_wr_en << 1) | (tsel_idle_en << 2)) |
| << 16; |
| clrsetbits32(&denali_phy[5], 0x7 << 16, reg_value); |
| clrsetbits32(&denali_phy[133], 0x7 << 16, reg_value); |
| clrsetbits32(&denali_phy[261], 0x7 << 16, reg_value); |
| clrsetbits32(&denali_phy[389], 0x7 << 16, reg_value); |
| |
| /* phy_dqs_tsel_enable_X 3bits DENALI_PHY_6/134/262/390 offset_24 */ |
| reg_value = (tsel_rd_en | (tsel_wr_en << 1) | (tsel_idle_en << 2)) |
| << 24; |
| clrsetbits32(&denali_phy[6], 0x7 << 24, reg_value); |
| clrsetbits32(&denali_phy[134], 0x7 << 24, reg_value); |
| clrsetbits32(&denali_phy[262], 0x7 << 24, reg_value); |
| clrsetbits32(&denali_phy[390], 0x7 << 24, reg_value); |
| |
| /* phy_adr_tsel_enable_ 1bit DENALI_PHY_518/646/774 offset_8 */ |
| reg_value = tsel_wr_en << 8; |
| clrsetbits32(&denali_phy[518], 0x1 << 8, reg_value); |
| clrsetbits32(&denali_phy[646], 0x1 << 8, reg_value); |
| clrsetbits32(&denali_phy[774], 0x1 << 8, reg_value); |
| |
| /* phy_pad_addr_term tsel 1bit DENALI_PHY_933 offset_17 */ |
| reg_value = tsel_wr_en << 17; |
| clrsetbits32(&denali_phy[933], 0x1 << 17, reg_value); |
| /* |
| * pad_rst/cke/cs/clk_term tsel 1bits |
| * DENALI_PHY_938/936/940/934 offset_17 |
| */ |
| clrsetbits32(&denali_phy[938], 0x1 << 17, reg_value); |
| clrsetbits32(&denali_phy[936], 0x1 << 17, reg_value); |
| clrsetbits32(&denali_phy[940], 0x1 << 17, reg_value); |
| clrsetbits32(&denali_phy[934], 0x1 << 17, reg_value); |
| |
| /* phy_pad_fdbk_term 1bit DENALI_PHY_930 offset_17 */ |
| clrsetbits32(&denali_phy[930], 0x1 << 17, reg_value); |
| } |
| |
| static void phy_io_config(u32 channel, const struct rk3399_sdram_params *params) |
| { |
| u32 *denali_phy = rk3399_ddr_publ[channel]->denali_phy; |
| u32 vref_mode_dq, vref_value_dq, vref_mode_ac, vref_value_ac; |
| u32 mode_sel = 0; |
| u32 reg_value; |
| u32 drv_value, odt_value; |
| u32 speed; |
| |
| /* vref setting */ |
| if (params->dramtype == LPDDR4) { |
| /* LPDDR4 */ |
| vref_mode_dq = 0x6; |
| vref_value_dq = 0x1f; |
| vref_mode_ac = 0x6; |
| vref_value_ac = 0x1f; |
| } else if (params->dramtype == LPDDR3) { |
| if (params->odt == 1) { |
| vref_mode_dq = 0x5; /* LPDDR3 ODT */ |
| drv_value = (read32(&denali_phy[6]) >> 12) & 0xf; |
| odt_value = (read32(&denali_phy[6]) >> 4) & 0xf; |
| if (drv_value == PHY_DRV_ODT_48) { |
| switch (odt_value) { |
| case PHY_DRV_ODT_240: |
| vref_value_dq = 0x16; |
| break; |
| case PHY_DRV_ODT_120: |
| vref_value_dq = 0x26; |
| break; |
| case PHY_DRV_ODT_60: |
| vref_value_dq = 0x36; |
| break; |
| default: |
| die("Halting: Invalid ODT value.\n"); |
| } |
| } else if (drv_value == PHY_DRV_ODT_40) { |
| switch (odt_value) { |
| case PHY_DRV_ODT_240: |
| vref_value_dq = 0x19; |
| break; |
| case PHY_DRV_ODT_120: |
| vref_value_dq = 0x23; |
| break; |
| case PHY_DRV_ODT_60: |
| vref_value_dq = 0x31; |
| break; |
| default: |
| die("Halting: Invalid ODT value.\n"); |
| } |
| } else if (drv_value == PHY_DRV_ODT_34_3) { |
| switch (odt_value) { |
| case PHY_DRV_ODT_240: |
| vref_value_dq = 0x17; |
| break; |
| case PHY_DRV_ODT_120: |
| vref_value_dq = 0x20; |
| break; |
| case PHY_DRV_ODT_60: |
| vref_value_dq = 0x2e; |
| break; |
| default: |
| die("Halting: Invalid ODT value.\n"); |
| } |
| } else { |
| die("Halting: Invalid DRV value.\n"); |
| } |
| } else { |
| vref_mode_dq = 0x2; /* LPDDR3 */ |
| vref_value_dq = 0x1f; |
| } |
| vref_mode_ac = 0x2; |
| vref_value_ac = 0x1f; |
| } else if (params->dramtype == DDR3) { |
| /* DDR3L */ |
| vref_mode_dq = 0x1; |
| vref_value_dq = 0x1f; |
| vref_mode_ac = 0x1; |
| vref_value_ac = 0x1f; |
| } else { |
| die("Halting: Unknown DRAM type.\n"); |
| } |
| |
| reg_value = (vref_mode_dq << 9) | (0x1 << 8) | vref_value_dq; |
| |
| /* PHY_913 PHY_PAD_VREF_CTRL_DQ_0 12bits offset_8 */ |
| clrsetbits32(&denali_phy[913], 0xfff << 8, reg_value << 8); |
| /* PHY_914 PHY_PAD_VREF_CTRL_DQ_1 12bits offset_0 */ |
| clrsetbits32(&denali_phy[914], 0xfff, reg_value); |
| /* PHY_914 PHY_PAD_VREF_CTRL_DQ_2 12bits offset_16 */ |
| clrsetbits32(&denali_phy[914], 0xfff << 16, reg_value << 16); |
| /* PHY_915 PHY_PAD_VREF_CTRL_DQ_3 12bits offset_0 */ |
| clrsetbits32(&denali_phy[915], 0xfff, reg_value); |
| |
| reg_value = (vref_mode_ac << 9) | (0x1 << 8) | vref_value_ac; |
| |
| /* PHY_915 PHY_PAD_VREF_CTRL_AC 12bits offset_16 */ |
| clrsetbits32(&denali_phy[915], 0xfff << 16, reg_value << 16); |
| |
| if (params->dramtype == LPDDR4) |
| mode_sel = 0x6; |
| else if (params->dramtype == LPDDR3) |
| mode_sel = 0x0; |
| else if (params->dramtype == DDR3) |
| mode_sel = 0x1; |
| |
| /* PHY_924 PHY_PAD_FDBK_DRIVE */ |
| clrsetbits32(&denali_phy[924], 0x7 << 15, mode_sel << 15); |
| /* PHY_926 PHY_PAD_DATA_DRIVE */ |
| clrsetbits32(&denali_phy[926], 0x7 << 6, mode_sel << 6); |
| /* PHY_927 PHY_PAD_DQS_DRIVE */ |
| clrsetbits32(&denali_phy[927], 0x7 << 6, mode_sel << 6); |
| /* PHY_928 PHY_PAD_ADDR_DRIVE */ |
| clrsetbits32(&denali_phy[928], 0x7 << 14, mode_sel << 14); |
| /* PHY_929 PHY_PAD_CLK_DRIVE */ |
| clrsetbits32(&denali_phy[929], 0x7 << 14, mode_sel << 14); |
| /* PHY_935 PHY_PAD_CKE_DRIVE */ |
| clrsetbits32(&denali_phy[935], 0x7 << 14, mode_sel << 14); |
| /* PHY_937 PHY_PAD_RST_DRIVE */ |
| clrsetbits32(&denali_phy[937], 0x7 << 14, mode_sel << 14); |
| /* PHY_939 PHY_PAD_CS_DRIVE */ |
| clrsetbits32(&denali_phy[939], 0x7 << 14, mode_sel << 14); |
| |
| /* speed setting */ |
| if (params->ddr_freq < 400 * MHz) |
| speed = 0x0; |
| else if (params->ddr_freq < 800 * MHz) |
| speed = 0x1; |
| else if (params->ddr_freq < 1200 * MHz) |
| speed = 0x2; |
| else |
| speed = 0x3; |
| |
| /* PHY_924 PHY_PAD_FDBK_DRIVE */ |
| clrsetbits32(&denali_phy[924], 0x3 << 21, speed << 21); |
| /* PHY_926 PHY_PAD_DATA_DRIVE */ |
| clrsetbits32(&denali_phy[926], 0x3 << 9, speed << 9); |
| /* PHY_927 PHY_PAD_DQS_DRIVE */ |
| clrsetbits32(&denali_phy[927], 0x3 << 9, speed << 9); |
| /* PHY_928 PHY_PAD_ADDR_DRIVE */ |
| clrsetbits32(&denali_phy[928], 0x3 << 17, speed << 17); |
| /* PHY_929 PHY_PAD_CLK_DRIVE */ |
| clrsetbits32(&denali_phy[929], 0x3 << 17, speed << 17); |
| /* PHY_935 PHY_PAD_CKE_DRIVE */ |
| clrsetbits32(&denali_phy[935], 0x3 << 17, speed << 17); |
| /* PHY_937 PHY_PAD_RST_DRIVE */ |
| clrsetbits32(&denali_phy[937], 0x3 << 17, speed << 17); |
| /* PHY_939 PHY_PAD_CS_DRIVE */ |
| clrsetbits32(&denali_phy[939], 0x3 << 17, speed << 17); |
| } |
| |
| static int pctl_cfg(u32 channel, const struct rk3399_sdram_params *params) |
| { |
| u32 *denali_ctl = rk3399_ddr_pctl[channel]->denali_ctl; |
| u32 *denali_pi = rk3399_ddr_pi[channel]->denali_pi; |
| u32 *denali_phy = rk3399_ddr_publ[channel]->denali_phy; |
| const u32 *params_ctl = params->pctl_regs.denali_ctl; |
| const u32 *params_phy = params->phy_regs.denali_phy; |
| u32 tmp, tmp1, tmp2; |
| u32 pwrup_srefresh_exit; |
| struct stopwatch sw; |
| |
| /* |
| * work around controller bug: |
| * Do not program DRAM_CLASS until NO_PHY_IND_TRAIN_INT is programmed |
| */ |
| copy_to_reg(&denali_ctl[1], ¶ms_ctl[1], |
| sizeof(struct rk3399_ddr_pctl_regs) - 4); |
| write32(&denali_ctl[0], params_ctl[0]); |
| copy_to_reg(denali_pi, ¶ms->pi_regs.denali_pi[0], |
| sizeof(struct rk3399_ddr_pi_regs)); |
| /* rank count need to set for init */ |
| set_memory_map(channel, params); |
| |
| write32(&denali_phy[910], params->phy_regs.denali_phy[910]); |
| write32(&denali_phy[911], params->phy_regs.denali_phy[911]); |
| write32(&denali_phy[912], params->phy_regs.denali_phy[912]); |
| |
| pwrup_srefresh_exit = read32(&denali_ctl[68]) & PWRUP_SREFRESH_EXIT; |
| clrbits32(&denali_ctl[68], PWRUP_SREFRESH_EXIT); |
| |
| /* PHY_DLL_RST_EN */ |
| clrsetbits32(&denali_phy[957], 0x3 << 24, 1 << 24); |
| |
| setbits32(&denali_pi[0], START); |
| setbits32(&denali_ctl[0], START); |
| |
| while (1) { |
| tmp = read32(&denali_phy[920]); |
| tmp1 = read32(&denali_phy[921]); |
| tmp2 = read32(&denali_phy[922]); |
| if ((((tmp >> 16) & 0x1) == 0x1) && |
| (((tmp1 >> 16) & 0x1) == 0x1) && |
| (((tmp1 >> 0) & 0x1) == 0x1) && |
| (((tmp2 >> 0) & 0x1) == 0x1)) |
| break; |
| } |
| |
| copy_to_reg(&denali_phy[896], ¶ms_phy[896], (958 - 895) * 4); |
| copy_to_reg(&denali_phy[0], ¶ms_phy[0], (90 - 0 + 1) * 4); |
| copy_to_reg(&denali_phy[128], ¶ms_phy[128], (218 - 128 + 1) * 4); |
| copy_to_reg(&denali_phy[256], ¶ms_phy[256], (346 - 256 + 1) * 4); |
| copy_to_reg(&denali_phy[384], ¶ms_phy[384], (474 - 384 + 1) * 4); |
| copy_to_reg(&denali_phy[512], ¶ms_phy[512], (549 - 512 + 1) * 4); |
| copy_to_reg(&denali_phy[640], ¶ms_phy[640], (677 - 640 + 1) * 4); |
| copy_to_reg(&denali_phy[768], ¶ms_phy[768], (805 - 768 + 1) * 4); |
| set_ds_odt(channel, params); |
| |
| /* |
| * phy_dqs_tsel_wr_timing_X 8bits DENALI_PHY_84/212/340/468 offset_8 |
| * dqs_tsel_wr_end[7:4] add Half cycle |
| */ |
| tmp = (read32(&denali_phy[84]) >> 8) & 0xff; |
| clrsetbits32(&denali_phy[84], 0xff << 8, (tmp + 0x10) << 8); |
| tmp = (read32(&denali_phy[212]) >> 8) & 0xff; |
| clrsetbits32(&denali_phy[212], 0xff << 8, (tmp + 0x10) << 8); |
| tmp = (read32(&denali_phy[340]) >> 8) & 0xff; |
| clrsetbits32(&denali_phy[340], 0xff << 8, (tmp + 0x10) << 8); |
| tmp = (read32(&denali_phy[468]) >> 8) & 0xff; |
| clrsetbits32(&denali_phy[468], 0xff << 8, (tmp + 0x10) << 8); |
| |
| /* |
| * phy_dqs_tsel_wr_timing_X 8bits DENALI_PHY_83/211/339/467 offset_8 |
| * dq_tsel_wr_end[7:4] add Half cycle |
| */ |
| tmp = (read32(&denali_phy[83]) >> 16) & 0xff; |
| clrsetbits32(&denali_phy[83], 0xff << 16, (tmp + 0x10) << 16); |
| tmp = (read32(&denali_phy[211]) >> 16) & 0xff; |
| clrsetbits32(&denali_phy[211], 0xff << 16, (tmp + 0x10) << 16); |
| tmp = (read32(&denali_phy[339]) >> 16) & 0xff; |
| clrsetbits32(&denali_phy[339], 0xff << 16, (tmp + 0x10) << 16); |
| tmp = (read32(&denali_phy[467]) >> 16) & 0xff; |
| clrsetbits32(&denali_phy[467], 0xff << 16, (tmp + 0x10) << 16); |
| |
| phy_io_config(channel, params); |
| |
| /* PHY_DLL_RST_EN */ |
| clrsetbits32(&denali_phy[957], 0x3 << 24, 0x2 << 24); |
| |
| /* FIXME: need to care ERROR bit */ |
| stopwatch_init_msecs_expire(&sw, 100); |
| while (!(read32(&denali_ctl[203]) & (1 << 3))) { |
| if (stopwatch_expired(&sw)) |
| return -1; |
| } |
| |
| clrsetbits32(&denali_ctl[68], PWRUP_SREFRESH_EXIT, |
| pwrup_srefresh_exit); |
| return 0; |
| } |
| |
| static void select_per_cs_training_index(u32 channel, u32 rank) |
| { |
| u32 *denali_phy = rk3399_ddr_publ[channel]->denali_phy; |
| |
| /* PHY_84 PHY_PER_CS_TRAINING_EN_0 1bit offset_16 */ |
| if ((read32(&denali_phy[84])>>16) & 1) { |
| /* |
| * PHY_8/136/264/392 |
| * phy_per_cs_training_index_X 1bit offset_24 |
| */ |
| clrsetbits32(&denali_phy[8], 0x1 << 24, rank << 24); |
| clrsetbits32(&denali_phy[136], 0x1 << 24, rank << 24); |
| clrsetbits32(&denali_phy[264], 0x1 << 24, rank << 24); |
| clrsetbits32(&denali_phy[392], 0x1 << 24, rank << 24); |
| } |
| } |
| |
| static void override_write_leveling_value(u32 channel) |
| { |
| u32 *denali_ctl = rk3399_ddr_pctl[channel]->denali_ctl; |
| u32 *denali_phy = rk3399_ddr_publ[channel]->denali_phy; |
| u32 byte; |
| |
| /* PHY_896 PHY_FREQ_SEL_MULTICAST_EN 1bit offset_0 */ |
| setbits32(&denali_phy[896], 1); |
| |
| /* |
| * PHY_8/136/264/392 |
| * phy_per_cs_training_multicast_en_X 1bit offset_16 |
| */ |
| clrsetbits32(&denali_phy[8], 0x1 << 16, 1 << 16); |
| clrsetbits32(&denali_phy[136], 0x1 << 16, 1 << 16); |
| clrsetbits32(&denali_phy[264], 0x1 << 16, 1 << 16); |
| clrsetbits32(&denali_phy[392], 0x1 << 16, 1 << 16); |
| |
| for (byte = 0; byte < 4; byte++) |
| clrsetbits32(&denali_phy[63 + (128 * byte)], 0xffff << 16, |
| 0x200 << 16); |
| |
| /* PHY_896 PHY_FREQ_SEL_MULTICAST_EN 1bit offset_0 */ |
| clrbits32(&denali_phy[896], 1); |
| |
| /* CTL_200 ctrlupd_req 1bit offset_8 */ |
| clrsetbits32(&denali_ctl[200], 0x1 << 8, 0x1 << 8); |
| } |
| |
| static u32 get_rank_mask(u32 channel, const struct rk3399_sdram_params *params) |
| { |
| const u32 rank = params->ch[channel].rank; |
| |
| /* required rank mask is different for LPDDR4 */ |
| if (params->dramtype == LPDDR4) |
| return (rank == 1) ? 0x5 : 0xf; |
| else |
| return (rank == 1) ? 0x1 : 0x3; |
| } |
| |
| static int data_training_ca(u32 channel, const struct rk3399_sdram_params *params) |
| { |
| u32 *denali_pi = rk3399_ddr_pi[channel]->denali_pi; |
| u32 *denali_phy = rk3399_ddr_publ[channel]->denali_phy; |
| u32 obs_0, obs_1, obs_2; |
| const u32 rank_mask = get_rank_mask(channel, params); |
| u32 i, tmp; |
| |
| /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| write32(&denali_pi[175], 0x00003f7c); |
| |
| for (i = 0; i < MAX_RANKS_PER_CHANNEL; i++) { |
| if (!(rank_mask & (1 << i))) |
| continue; |
| |
| select_per_cs_training_index(channel, i); |
| /* PI_100 PI_CALVL_EN:RW:8:2 */ |
| clrsetbits32(&denali_pi[100], 0x3 << 8, 0x2 << 8); |
| /* PI_92 PI_CALVL_REQ:WR:16:1,PI_CALVL_CS:RW:24:2 */ |
| clrsetbits32(&denali_pi[92], (0x1 << 16) | (0x3 << 24), |
| (0x1 << 16) | (i << 24)); |
| |
| while (1) { |
| /* PI_174 PI_INT_STATUS:RD:8:18 */ |
| tmp = read32(&denali_pi[174]) >> 8; |
| |
| /* |
| * check status obs |
| * PHY_532/660/789 phy_adr_calvl_obs1_:0:32 |
| */ |
| obs_0 = read32(&denali_phy[532]); |
| obs_1 = read32(&denali_phy[660]); |
| obs_2 = read32(&denali_phy[788]); |
| if (((obs_0 >> 30) & 0x3) || |
| ((obs_1 >> 30) & 0x3) || |
| ((obs_2 >> 30) & 0x3)) |
| return -1; |
| if ((((tmp >> 11) & 0x1) == 0x1) && |
| (((tmp >> 13) & 0x1) == 0x1) && |
| (((tmp >> 5) & 0x1) == 0x0)) |
| break; |
| else if (((tmp >> 5) & 0x1) == 0x1) |
| return -1; |
| } |
| /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| write32(&denali_pi[175], 0x00003f7c); |
| } |
| clrbits32(&denali_pi[100], 0x3 << 8); |
| |
| return 0; |
| } |
| |
| static int data_training_wl(u32 channel, const struct rk3399_sdram_params *params) |
| { |
| u32 *denali_pi = rk3399_ddr_pi[channel]->denali_pi; |
| u32 *denali_phy = rk3399_ddr_publ[channel]->denali_phy; |
| u32 obs_0, obs_1, obs_2, obs_3; |
| u32 rank = params->ch[channel].rank; |
| u32 i, tmp; |
| |
| /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| write32(&denali_pi[175], 0x00003f7c); |
| |
| for (i = 0; i < rank; i++) { |
| select_per_cs_training_index(channel, i); |
| /* PI_60 PI_WRLVL_EN:RW:8:2 */ |
| clrsetbits32(&denali_pi[60], 0x3 << 8, 0x2 << 8); |
| /* PI_59 PI_WRLVL_REQ:WR:8:1,PI_WRLVL_CS:RW:16:2 */ |
| clrsetbits32(&denali_pi[59], (0x1 << 8) | (0x3 << 16), (0x1 << 8) | (i << 16)); |
| |
| while (1) { |
| /* PI_174 PI_INT_STATUS:RD:8:18 */ |
| tmp = read32(&denali_pi[174]) >> 8; |
| |
| /* |
| * check status obs, if error maybe can not |
| * get leveling done PHY_40/168/296/424 |
| * phy_wrlvl_status_obs_X:0:13 |
| */ |
| obs_0 = read32(&denali_phy[40]); |
| obs_1 = read32(&denali_phy[168]); |
| obs_2 = read32(&denali_phy[296]); |
| obs_3 = read32(&denali_phy[424]); |
| if (((obs_0 >> 12) & 0x1) || |
| ((obs_1 >> 12) & 0x1) || |
| ((obs_2 >> 12) & 0x1) || |
| ((obs_3 >> 12) & 0x1)) |
| return -1; |
| if ((((tmp >> 10) & 0x1) == 0x1) && |
| (((tmp >> 13) & 0x1) == 0x1) && |
| (((tmp >> 4) & 0x1) == 0x0)) |
| break; |
| else if (((tmp >> 4) & 0x1) == 0x1) |
| return -1; |
| } |
| /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| write32(&denali_pi[175], 0x00003f7c); |
| } |
| |
| override_write_leveling_value(channel); |
| clrbits32(&denali_pi[60], 0x3 << 8); |
| |
| return 0; |
| } |
| |
| static int data_training_rg(u32 channel, const struct rk3399_sdram_params *params) |
| { |
| u32 *denali_pi = rk3399_ddr_pi[channel]->denali_pi; |
| u32 *denali_phy = rk3399_ddr_publ[channel]->denali_phy; |
| u32 rank = params->ch[channel].rank; |
| u32 obs_0, obs_1, obs_2, obs_3; |
| u32 reg_value = 0; |
| u32 i, tmp; |
| |
| /* |
| * The differential signal of DQS needs to keep low level |
| * before gate training. RPULL will connect 4Kn from PADP |
| * to VSS and a 4Kn from PADN to VDDQ to ensure it. |
| * But if it has PHY side ODT connect at this time, |
| * it will change the DQS signal level. So disable PHY |
| * side ODT before gate training and restore ODT state |
| * after gate training. |
| */ |
| if (params->dramtype != LPDDR4) { |
| reg_value = (read32(&denali_phy[6]) >> 24) & 0x7; |
| |
| /* |
| * phy_dqs_tsel_enable_X 3bits |
| * DENALI_PHY_6/134/262/390 offset_24 |
| */ |
| clrbits32(&denali_phy[6], 0x7 << 24); |
| clrbits32(&denali_phy[134], 0x7 << 24); |
| clrbits32(&denali_phy[262], 0x7 << 24); |
| clrbits32(&denali_phy[390], 0x7 << 24); |
| } |
| |
| /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| write32(&denali_pi[175], 0x00003f7c); |
| |
| for (i = 0; i < rank; i++) { |
| select_per_cs_training_index(channel, i); |
| /* PI_80 PI_RDLVL_GATE_EN:RW:24:2 */ |
| clrsetbits32(&denali_pi[80], 0x3 << 24, 0x2 << 24); |
| /* |
| * PI_74 PI_RDLVL_GATE_REQ:WR:16:1 |
| * PI_RDLVL_CS:RW:24:2 |
| */ |
| clrsetbits32(&denali_pi[74], (0x1 << 16) | (0x3 << 24), |
| (0x1 << 16) | (i << 24)); |
| |
| while (1) { |
| /* PI_174 PI_INT_STATUS:RD:8:18 */ |
| tmp = read32(&denali_pi[174]) >> 8; |
| |
| /* |
| * check status obs |
| * PHY_43/171/299/427 |
| * PHY_GTLVL_STATUS_OBS_x:16:8 |
| */ |
| obs_0 = read32(&denali_phy[43]); |
| obs_1 = read32(&denali_phy[171]); |
| obs_2 = read32(&denali_phy[299]); |
| obs_3 = read32(&denali_phy[427]); |
| if (((obs_0 >> (16 + 6)) & 0x3) || |
| ((obs_1 >> (16 + 6)) & 0x3) || |
| ((obs_2 >> (16 + 6)) & 0x3) || |
| ((obs_3 >> (16 + 6)) & 0x3)) |
| return -1; |
| if ((((tmp >> 9) & 0x1) == 0x1) && |
| (((tmp >> 13) & 0x1) == 0x1) && |
| (((tmp >> 3) & 0x1) == 0x0)) |
| break; |
| else if (((tmp >> 3) & 0x1) == 0x1) |
| return -1; |
| } |
| /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| write32(&denali_pi[175], 0x00003f7c); |
| } |
| clrbits32(&denali_pi[80], 0x3 << 24); |
| |
| if (params->dramtype != LPDDR4) { |
| /* |
| * phy_dqs_tsel_enable_X 3bits |
| * DENALI_PHY_6/134/262/390 offset_24 |
| */ |
| tmp = reg_value << 24; |
| clrsetbits32(&denali_phy[6], 0x7 << 24, tmp); |
| clrsetbits32(&denali_phy[134], 0x7 << 24, tmp); |
| clrsetbits32(&denali_phy[262], 0x7 << 24, tmp); |
| clrsetbits32(&denali_phy[390], 0x7 << 24, tmp); |
| } |
| return 0; |
| } |
| |
| static int data_training_rl(u32 channel, const struct rk3399_sdram_params *params) |
| { |
| u32 rank = params->ch[channel].rank; |
| u32 i, tmp; |
| |
| u32 *denali_pi = rk3399_ddr_pi[channel]->denali_pi; |
| |
| /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| write32(&denali_pi[175], 0x00003f7c); |
| |
| for (i = 0; i < rank; i++) { |
| select_per_cs_training_index(channel, i); |
| /* PI_80 PI_RDLVL_EN:RW:16:2 */ |
| clrsetbits32(&denali_pi[80], 0x3 << 16, 0x2 << 16); |
| /* PI_74 PI_RDLVL_REQ:WR:8:1,PI_RDLVL_CS:RW:24:2 */ |
| clrsetbits32(&denali_pi[74], (0x1 << 8) | (0x3 << 24), (0x1 << 8) | (i << 24)); |
| |
| while (1) { |
| /* PI_174 PI_INT_STATUS:RD:8:18 */ |
| tmp = read32(&denali_pi[174]) >> 8; |
| |
| /* |
| * make sure status obs not report error bit |
| * PHY_46/174/302/430 |
| * phy_rdlvl_status_obs_X:16:8 |
| */ |
| if ((((tmp >> 8) & 0x1) == 0x1) && (((tmp >> 13) & 0x1) == 0x1) |
| && (((tmp >> 2) & 0x1) == 0x0)) |
| break; |
| else if (((tmp >> 2) & 0x1) == 0x1) |
| return -1; |
| } |
| /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| write32(&denali_pi[175], 0x00003f7c); |
| } |
| clrbits32(&denali_pi[80], 0x3 << 16); |
| |
| return 0; |
| } |
| |
| static int data_training_wdql(u32 channel, const struct rk3399_sdram_params *params) |
| { |
| u32 *denali_pi = rk3399_ddr_pi[channel]->denali_pi; |
| const u32 rank_mask = get_rank_mask(channel, params); |
| u32 i, tmp; |
| |
| /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| write32(&denali_pi[175], 0x00003f7c); |
| |
| for (i = 0; i < MAX_RANKS_PER_CHANNEL; i++) { |
| if (!(rank_mask & (1 << i))) |
| continue; |
| |
| select_per_cs_training_index(channel, i); |
| /* |
| * disable PI_WDQLVL_VREF_EN before wdq leveling? |
| * PI_181 PI_WDQLVL_VREF_EN:RW:8:1 |
| */ |
| clrbits32(&denali_pi[181], 0x1 << 8); |
| /* PI_124 PI_WDQLVL_EN:RW:16:2 */ |
| clrsetbits32(&denali_pi[124], 0x3 << 16, 0x2 << 16); |
| /* PI_121 PI_WDQLVL_REQ:WR:8:1,PI_WDQLVL_CS:RW:16:2 */ |
| clrsetbits32(&denali_pi[121], (0x1 << 8) | (0x3 << 16), (0x1 << 8) | (i << 16)); |
| |
| while (1) { |
| /* PI_174 PI_INT_STATUS:RD:8:18 */ |
| tmp = read32(&denali_pi[174]) >> 8; |
| if ((((tmp >> 12) & 0x1) == 0x1) && (((tmp >> 13) & 0x1) == 0x1) |
| && (((tmp >> 6) & 0x1) == 0x0)) |
| break; |
| else if (((tmp >> 6) & 0x1) == 0x1) |
| return -1; |
| } |
| /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| write32(&denali_pi[175], 0x00003f7c); |
| } |
| clrbits32(&denali_pi[124], 0x3 << 16); |
| |
| return 0; |
| } |
| |
| |
| static int data_training(u32 channel, const struct rk3399_sdram_params *params, |
| u32 training_flag) |
| { |
| u32 *denali_phy = rk3399_ddr_publ[channel]->denali_phy; |
| int ret; |
| |
| /* PHY_927 PHY_PAD_DQS_DRIVE RPULL offset_22 */ |
| setbits32(&denali_phy[927], (1 << 22)); |
| |
| if (training_flag == PI_FULL_TRAINING) { |
| if (params->dramtype == LPDDR4) { |
| training_flag = PI_CA_TRAINING | PI_WRITE_LEVELING | |
| PI_READ_GATE_TRAINING | |
| PI_READ_LEVELING | PI_WDQ_LEVELING; |
| } else if (params->dramtype == LPDDR3) { |
| training_flag = PI_CA_TRAINING | PI_WRITE_LEVELING | |
| PI_READ_GATE_TRAINING; |
| } else if (params->dramtype == DDR3) { |
| training_flag = PI_WRITE_LEVELING | |
| PI_READ_GATE_TRAINING | |
| PI_READ_LEVELING; |
| } |
| } |
| |
| /* ca training(LPDDR4,LPDDR3 support) */ |
| if ((training_flag & PI_CA_TRAINING) == PI_CA_TRAINING) { |
| ret = data_training_ca(channel, params); |
| if (ret) { |
| printk(BIOS_ERR, "CA training failed\n"); |
| return ret; |
| } |
| } |
| |
| /* write leveling(LPDDR4,LPDDR3,DDR3 support) */ |
| if ((training_flag & PI_WRITE_LEVELING) == PI_WRITE_LEVELING) { |
| ret = data_training_wl(channel, params); |
| if (ret) { |
| printk(BIOS_ERR, "WL training failed\n"); |
| return ret; |
| } |
| } |
| |
| /* read gate training(LPDDR4,LPDDR3,DDR3 support) */ |
| if ((training_flag & PI_READ_GATE_TRAINING) == PI_READ_GATE_TRAINING) { |
| ret = data_training_rg(channel, params); |
| if (ret) { |
| printk(BIOS_ERR, "RG training failed\n"); |
| return ret; |
| } |
| } |
| |
| /* read leveling(LPDDR4,LPDDR3,DDR3 support) */ |
| if ((training_flag & PI_READ_LEVELING) == PI_READ_LEVELING) { |
| ret = data_training_rl(channel, params); |
| if (ret) { |
| printk(BIOS_ERR, "RL training failed\n"); |
| return ret; |
| } |
| } |
| |
| /* wdq leveling(LPDDR4 support) */ |
| if ((training_flag & PI_WDQ_LEVELING) == PI_WDQ_LEVELING) { |
| ret = data_training_wdql(channel, params); |
| if (ret) { |
| printk(BIOS_ERR, "WDQL training failed\n"); |
| return ret; |
| } |
| } |
| |
| /* PHY_927 PHY_PAD_DQS_DRIVE RPULL offset_22 */ |
| clrbits32(&denali_phy[927], (1 << 22)); |
| |
| return 0; |
| } |
| |
| static void set_ddrconfig(const struct rk3399_sdram_params *params, |
| unsigned char channel, u32 ddrconfig) |
| { |
| /* only need to set ddrconfig */ |
| struct rk3399_msch_regs *ddr_msch_regs = rk3399_msch[channel]; |
| unsigned int cs0_cap = 0; |
| unsigned int cs1_cap = 0; |
| |
| cs0_cap = (1 << (params->ch[channel].cs0_row |
| + params->ch[channel].col |
| + params->ch[channel].bk |
| + params->ch[channel].bw - 20)); |
| if (params->ch[channel].rank > 1) |
| cs1_cap = cs0_cap >> (params->ch[channel].cs0_row |
| - params->ch[channel].cs1_row); |
| if (params->ch[channel].row_3_4) { |
| cs0_cap = cs0_cap * 3 / 4; |
| cs1_cap = cs1_cap * 3 / 4; |
| } |
| |
| write32(&ddr_msch_regs->ddrconf, ddrconfig | (ddrconfig << 8)); |
| write32(&ddr_msch_regs->ddrsize, ((cs0_cap / 32) & 0xff) | |
| (((cs1_cap / 32) & 0xff) << 8)); |
| } |
| |
| static void dram_all_config(const struct rk3399_sdram_params *params) |
| { |
| u32 sys_reg = 0; |
| unsigned int channel; |
| unsigned int use; |
| |
| sys_reg |= SYS_REG_ENC_DDRTYPE(params->dramtype); |
| sys_reg |= SYS_REG_ENC_NUM_CH(params->num_channels); |
| for (channel = 0, use = 0; (use < params->num_channels) && (channel < 2); channel++) { |
| const struct rk3399_sdram_channel *info = ¶ms->ch[channel]; |
| struct rk3399_msch_regs *ddr_msch_regs; |
| const struct rk3399_msch_timings *noc_timing; |
| |
| if (params->ch[channel].col == 0) |
| continue; |
| use++; |
| sys_reg |= SYS_REG_ENC_ROW_3_4(info->row_3_4, channel); |
| sys_reg |= SYS_REG_ENC_CHINFO(channel); |
| sys_reg |= SYS_REG_ENC_RANK(info->rank, channel); |
| sys_reg |= SYS_REG_ENC_COL(info->col, channel); |
| sys_reg |= SYS_REG_ENC_BK(info->bk, channel); |
| sys_reg |= SYS_REG_ENC_CS0_ROW(info->cs0_row, channel); |
| if (params->ch[channel].rank > 1) |
| sys_reg |= SYS_REG_ENC_CS1_ROW(info->cs1_row, channel); |
| sys_reg |= SYS_REG_ENC_BW(info->bw, channel); |
| sys_reg |= SYS_REG_ENC_DBW(info->dbw, channel); |
| |
| ddr_msch_regs = rk3399_msch[channel]; |
| noc_timing = ¶ms->ch[channel].noc_timings; |
| write32(&ddr_msch_regs->ddrtiminga0.d32, |
| noc_timing->ddrtiminga0.d32); |
| write32(&ddr_msch_regs->ddrtimingb0.d32, |
| noc_timing->ddrtimingb0.d32); |
| write32(&ddr_msch_regs->ddrtimingc0.d32, |
| noc_timing->ddrtimingc0.d32); |
| write32(&ddr_msch_regs->devtodev0.d32, |
| noc_timing->devtodev0.d32); |
| write32(&ddr_msch_regs->ddrmode.d32, |
| noc_timing->ddrmode.d32); |
| |
| /* rank 1 memory clock disable (dfi_dram_clk_disable = 1) */ |
| if (params->ch[channel].rank == 1) |
| setbits32(&rk3399_ddr_pctl[channel]->denali_ctl[276], |
| 1 << 17); |
| } |
| |
| write32(&rk3399_pmugrf->os_reg2, sys_reg); |
| DDR_STRIDE(params->stride); |
| |
| /* reboot hold register set */ |
| write32(&pmucru_ptr->pmucru_rstnhold_con[1], |
| PRESET_SGRF_HOLD(0) | PRESET_GPIO0_HOLD(1) | |
| PRESET_GPIO1_HOLD(1)); |
| clrsetbits32(&cru_ptr->glb_rst_con, 0x3, 0x3); |
| } |
| |
| static void switch_to_phy_index1(const struct rk3399_sdram_params *params) |
| { |
| u32 channel; |
| u32 *denali_phy; |
| struct stopwatch sw; |
| u32 ch_count = params->num_channels; |
| |
| stopwatch_init_msecs_expire(&sw, 100); |
| write32(&rk3399_ddr_cic->cic_ctrl0, |
| RK_CLRSETBITS(0x03 << 4 | 1 << 2 | 1, |
| 1 << 4 | 1 << 2 | 1)); |
| while (!(read32(&rk3399_ddr_cic->cic_status0) & (1 << 2))) { |
| if (stopwatch_expired(&sw)) { |
| printk(BIOS_ERR, |
| "index1 frequency change overtime, reset\n"); |
| board_reset(); |
| } |
| } |
| |
| stopwatch_init_msecs_expire(&sw, 100); |
| write32(&rk3399_ddr_cic->cic_ctrl0, RK_CLRSETBITS(1 << 1, 1 << 1)); |
| while (!(read32(&rk3399_ddr_cic->cic_status0) & (1 << 0))) { |
| if (stopwatch_expired(&sw)) { |
| printk(BIOS_ERR, |
| "index1 frequency done overtime, reset\n"); |
| board_reset(); |
| } |
| } |
| |
| for (channel = 0; channel < ch_count; channel++) { |
| denali_phy = rk3399_ddr_publ[channel]->denali_phy; |
| clrsetbits32(&denali_phy[896], (0x3 << 8) | 1, 1 << 8); |
| if (data_training(channel, params, PI_FULL_TRAINING)) { |
| printk(BIOS_ERR, "index1 training failed, reset\n"); |
| board_reset(); |
| } |
| } |
| } |
| |
| void sdram_init(const struct rk3399_sdram_params *params) |
| { |
| unsigned char dramtype = params->dramtype; |
| unsigned int ddr_freq = params->ddr_freq; |
| int channel; |
| |
| printk(BIOS_INFO, "Starting SDRAM initialization...\n"); |
| |
| if ((dramtype == DDR3 && ddr_freq > 800*MHz) || |
| (dramtype == LPDDR3 && ddr_freq > 933*MHz) || |
| (dramtype == LPDDR4 && ddr_freq > 800*MHz)) |
| die("SDRAM frequency is to high!"); |
| |
| rkclk_configure_ddr(ddr_freq); |
| |
| for (channel = 0; channel < 2; channel++) { |
| phy_pctrl_reset(channel); |
| phy_dll_bypass_set(rk3399_ddr_publ[channel], ddr_freq); |
| |
| if (channel >= params->num_channels) |
| continue; |
| |
| /* |
| * TODO: we need to find the root cause why this |
| * step may fail, before that, we just reset the |
| * system, and start again. |
| */ |
| if (pctl_cfg(channel, params) != 0) { |
| printk(BIOS_ERR, "pctl_cfg fail, reset\n"); |
| board_reset(); |
| } |
| |
| /* LPDDR2/LPDDR3 need to wait DAI complete, max 10us */ |
| if (dramtype == LPDDR3) |
| udelay(10); |
| |
| if (data_training(channel, params, PI_FULL_TRAINING)) { |
| printk(BIOS_ERR, "SDRAM initialization failed, reset\n"); |
| board_reset(); |
| } |
| |
| set_ddrconfig(params, channel, params->ch[channel].ddrconfig); |
| } |
| dram_all_config(params); |
| switch_to_phy_index1(params); |
| |
| printk(BIOS_INFO, "Finish SDRAM initialization...\n"); |
| } |
| |
| size_t sdram_size_mb(void) |
| { |
| u32 rank, col, bk, cs0_row, cs1_row, bw, row_3_4; |
| size_t chipsize_mb = 0; |
| static size_t size_mb = 0; |
| u32 ch; |
| |
| if (!size_mb) { |
| u32 sys_reg = read32(&rk3399_pmugrf->os_reg2); |
| u32 ch_num = SYS_REG_DEC_NUM_CH(sys_reg); |
| |
| for (ch = 0; ch < ch_num; ch++) { |
| rank = SYS_REG_DEC_RANK(sys_reg, ch); |
| col = SYS_REG_DEC_COL(sys_reg, ch); |
| bk = SYS_REG_DEC_BK(sys_reg, ch); |
| cs0_row = SYS_REG_DEC_CS0_ROW(sys_reg, ch); |
| cs1_row = SYS_REG_DEC_CS1_ROW(sys_reg, ch); |
| bw = SYS_REG_DEC_BW(sys_reg, ch); |
| row_3_4 = SYS_REG_DEC_ROW_3_4(sys_reg, ch); |
| |
| chipsize_mb = (1 << (cs0_row + col + bk + bw - 20)); |
| |
| if (rank > 1) |
| chipsize_mb += chipsize_mb >> |
| (cs0_row - cs1_row); |
| if (row_3_4) |
| chipsize_mb = chipsize_mb * 3 / 4; |
| size_mb += chipsize_mb; |
| } |
| |
| /* |
| * we use the 0x00000000~0xf7ffffff space |
| * since 0xf8000000~0xffffffff is soc register space |
| * so we reserve it |
| */ |
| size_mb = MIN(size_mb, 0xf8000000/MiB); |
| } |
| |
| return size_mb; |
| } |