]> git.ipfire.org Git - people/ms/u-boot.git/blobdiff - arch/arm/cpu/armv7/omap5/sdram.c
ARM: DRA72-evm: Enable HW leveling
[people/ms/u-boot.git] / arch / arm / cpu / armv7 / omap5 / sdram.c
index 1b445a61ebabf47731a578c02f0dd2659289d9b6..3022b9e06e22f4bb3888de1a1105e59e49a3b21d 100644 (file)
@@ -8,23 +8,7 @@
  * Aneesh V <aneesh@ti.com>
  * Sricharan R <r.sricharan@ti.com>
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <asm/emif.h>
@@ -157,19 +141,20 @@ const struct emif_regs emif_1_regs_ddr3_532_mhz_1cs_dra_es1 = {
        .sdram_config_init              = 0x61851ab2,
        .sdram_config                   = 0x61851ab2,
        .sdram_config2                  = 0x08000000,
-       .ref_ctrl                       = 0x00001035,
+       .ref_ctrl                       = 0x000040F1,
+       .ref_ctrl_final                 = 0x00001035,
        .sdram_tim1                     = 0xCCCF36B3,
        .sdram_tim2                     = 0x308F7FDA,
        .sdram_tim3                     = 0x027F88A8,
-       .read_idle_ctrl                 = 0x00050000,
+       .read_idle_ctrl                 = 0x00050001,
        .zq_config                      = 0x0007190B,
        .temp_alert_config              = 0x00000000,
-       .emif_ddr_phy_ctlr_1_init       = 0x0E20400A,
-       .emif_ddr_phy_ctlr_1            = 0x0E24400A,
-       .emif_ddr_ext_phy_ctrl_1        = 0x04040100,
-       .emif_ddr_ext_phy_ctrl_2        = 0x009E009E,
-       .emif_ddr_ext_phy_ctrl_3        = 0x009E009E,
-       .emif_ddr_ext_phy_ctrl_4        = 0x009E009E,
+       .emif_ddr_phy_ctlr_1_init       = 0x0024400B,
+       .emif_ddr_phy_ctlr_1            = 0x0E24400B,
+       .emif_ddr_ext_phy_ctrl_1        = 0x10040100,
+       .emif_ddr_ext_phy_ctrl_2        = 0x00910091,
+       .emif_ddr_ext_phy_ctrl_3        = 0x00950095,
+       .emif_ddr_ext_phy_ctrl_4        = 0x009B009B,
        .emif_ddr_ext_phy_ctrl_5        = 0x009E009E,
        .emif_rd_wr_lvl_rmp_win         = 0x00000000,
        .emif_rd_wr_lvl_rmp_ctl         = 0x80000000,
@@ -181,20 +166,46 @@ const struct emif_regs emif_2_regs_ddr3_532_mhz_1cs_dra_es1 = {
        .sdram_config_init              = 0x61851B32,
        .sdram_config                   = 0x61851B32,
        .sdram_config2                  = 0x08000000,
-       .ref_ctrl                       = 0x00001035,
+       .ref_ctrl                       = 0x000040F1,
+       .ref_ctrl_final                 = 0x00001035,
        .sdram_tim1                     = 0xCCCF36B3,
        .sdram_tim2                     = 0x308F7FDA,
        .sdram_tim3                     = 0x027F88A8,
-       .read_idle_ctrl                 = 0x00050000,
+       .read_idle_ctrl                 = 0x00050001,
        .zq_config                      = 0x0007190B,
        .temp_alert_config              = 0x00000000,
-       .emif_ddr_phy_ctlr_1_init       = 0x0020400A,
-       .emif_ddr_phy_ctlr_1            = 0x0E24400A,
-       .emif_ddr_ext_phy_ctrl_1        = 0x04040100,
-       .emif_ddr_ext_phy_ctrl_2        = 0x009D009D,
-       .emif_ddr_ext_phy_ctrl_3        = 0x009D009D,
-       .emif_ddr_ext_phy_ctrl_4        = 0x009D009D,
-       .emif_ddr_ext_phy_ctrl_5        = 0x009D009D,
+       .emif_ddr_phy_ctlr_1_init       = 0x0024400B,
+       .emif_ddr_phy_ctlr_1            = 0x0E24400B,
+       .emif_ddr_ext_phy_ctrl_1        = 0x10040100,
+       .emif_ddr_ext_phy_ctrl_2        = 0x00910091,
+       .emif_ddr_ext_phy_ctrl_3        = 0x00950095,
+       .emif_ddr_ext_phy_ctrl_4        = 0x009B009B,
+       .emif_ddr_ext_phy_ctrl_5        = 0x009E009E,
+       .emif_rd_wr_lvl_rmp_win         = 0x00000000,
+       .emif_rd_wr_lvl_rmp_ctl         = 0x80000000,
+       .emif_rd_wr_lvl_ctl             = 0x00000000,
+       .emif_rd_wr_exec_thresh         = 0x00000305
+};
+
+const struct emif_regs emif_1_regs_ddr3_666_mhz_1cs_dra_es1 = {
+       .sdram_config_init              = 0x61862B32,
+       .sdram_config                   = 0x61862B32,
+       .sdram_config2                  = 0x08000000,
+       .ref_ctrl                       = 0x0000514C,
+       .ref_ctrl_final                 = 0x0000144A,
+       .sdram_tim1                     = 0xD113781C,
+       .sdram_tim2                     = 0x305A7FDA,
+       .sdram_tim3                     = 0x409F86A8,
+       .read_idle_ctrl                 = 0x00050000,
+       .zq_config                      = 0x5007190B,
+       .temp_alert_config              = 0x00000000,
+       .emif_ddr_phy_ctlr_1_init       = 0x0024400D,
+       .emif_ddr_phy_ctlr_1            = 0x0E24400D,
+       .emif_ddr_ext_phy_ctrl_1        = 0x10040100,
+       .emif_ddr_ext_phy_ctrl_2        = 0x00A400A4,
+       .emif_ddr_ext_phy_ctrl_3        = 0x00A900A9,
+       .emif_ddr_ext_phy_ctrl_4        = 0x00B000B0,
+       .emif_ddr_ext_phy_ctrl_5        = 0x00B000B0,
        .emif_rd_wr_lvl_rmp_win         = 0x00000000,
        .emif_rd_wr_lvl_rmp_ctl         = 0x80000000,
        .emif_rd_wr_lvl_ctl             = 0x00000000,
@@ -245,6 +256,17 @@ const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2 = {
        .is_ma_present  = 0x1
 };
 
+/*
+ * DRA722 EVM EMIF1 CONFIGURATION
+ */
+const struct dmm_lisa_map_regs lisa_map_2G_x_2 = {
+       .dmm_lisa_map_0 = 0x0,
+       .dmm_lisa_map_1 = 0x0,
+       .dmm_lisa_map_2 = 0x80600100,
+       .dmm_lisa_map_3 = 0xFF020100,
+       .is_ma_present  = 0x1
+};
+
 static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs)
 {
        switch (omap_revision()) {
@@ -261,6 +283,7 @@ static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs)
                *regs = &emif_regs_ddr3_532_mhz_1cs_es2;
                break;
        case DRA752_ES1_0:
+       case DRA752_ES1_1:
                switch (emif_nr) {
                case 1:
                        *regs = &emif_1_regs_ddr3_532_mhz_1cs_dra_es1;
@@ -270,6 +293,9 @@ static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs)
                        break;
                }
                break;
+       case DRA722_ES1_0:
+               *regs = &emif_1_regs_ddr3_666_mhz_1cs_dra_es1;
+               break;
        default:
                *regs = &emif_1_regs_ddr3_532_mhz_1cs_dra_es1;
        }
@@ -289,8 +315,12 @@ static void emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs
                *dmm_lisa_regs = &lisa_map_4G_x_2_x_2;
                break;
        case DRA752_ES1_0:
-       default:
+       case DRA752_ES1_1:
                *dmm_lisa_regs = &lisa_map_2G_x_2_x_2_2G_x_1_x_2;
+               break;
+       case DRA722_ES1_0:
+       default:
+               *dmm_lisa_regs = &lisa_map_2G_x_2;
        }
 
 }
@@ -322,7 +352,7 @@ void emif_get_device_details(u32 emif_nr,
 
 #endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */
 
-const u32 ext_phy_ctrl_const_base[EMIF_EXT_PHY_CTRL_CONST_REG] = {
+const u32 ext_phy_ctrl_const_base[] = {
        0x01004010,
        0x00001004,
        0x04010040,
@@ -345,7 +375,7 @@ const u32 ext_phy_ctrl_const_base[EMIF_EXT_PHY_CTRL_CONST_REG] = {
        0x0
 };
 
-const u32 ddr3_ext_phy_ctrl_const_base_es1[EMIF_EXT_PHY_CTRL_CONST_REG] = {
+const u32 ddr3_ext_phy_ctrl_const_base_es1[] = {
        0x01004010,
        0x00001004,
        0x04010040,
@@ -368,7 +398,7 @@ const u32 ddr3_ext_phy_ctrl_const_base_es1[EMIF_EXT_PHY_CTRL_CONST_REG] = {
        0x0
 };
 
-const u32 ddr3_ext_phy_ctrl_const_base_es2[EMIF_EXT_PHY_CTRL_CONST_REG] = {
+const u32 ddr3_ext_phy_ctrl_const_base_es2[] = {
        0x50D4350D,
        0x00000D43,
        0x04010040,
@@ -391,52 +421,124 @@ const u32 ddr3_ext_phy_ctrl_const_base_es2[EMIF_EXT_PHY_CTRL_CONST_REG] = {
        0x0
 };
 
+/* Ext phy ctrl 1-35 regs */
 const u32
-dra_ddr3_ext_phy_ctrl_const_base_es1_emif1[EMIF_EXT_PHY_CTRL_CONST_REG] = {
+dra_ddr3_ext_phy_ctrl_const_base_es1_emif1[] = {
+       0x10040100,
+       0x00910091,
+       0x00950095,
+       0x009B009B,
        0x009E009E,
-       0x002E002E,
-       0x002E002E,
-       0x002E002E,
-       0x002E002E,
-       0x002E002E,
-       0x004D004D,
-       0x004D004D,
-       0x004D004D,
-       0x004D004D,
-       0x004D004D,
-       0x004D004D,
-       0x004D004D,
-       0x004D004D,
-       0x004D004D,
-       0x004D004D,
+       0x00980098,
+       0x00340034,
+       0x00350035,
+       0x00340034,
+       0x00310031,
+       0x00340034,
+       0x007F007F,
+       0x007F007F,
+       0x007F007F,
+       0x007F007F,
+       0x007F007F,
+       0x00480048,
+       0x004A004A,
+       0x00520052,
+       0x00550055,
+       0x00500050,
+       0x00000000,
+       0x00600020,
+       0x40011080,
+       0x08102040,
        0x0,
-       0x600020,
-       0x40010080,
-       0x8102040
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0
 };
 
+/* Ext phy ctrl 1-35 regs */
 const u32
-dra_ddr3_ext_phy_ctrl_const_base_es1_emif2[EMIF_EXT_PHY_CTRL_CONST_REG] = {
-       0x009D009D,
-       0x002D002D,
-       0x002D002D,
-       0x002D002D,
-       0x002D002D,
-       0x002D002D,
-       0x00570057,
-       0x00570057,
-       0x00570057,
-       0x00570057,
-       0x00570057,
-       0x00570057,
-       0x00570057,
-       0x00570057,
-       0x00570057,
-       0x00570057,
+dra_ddr3_ext_phy_ctrl_const_base_es1_emif2[] = {
+       0x10040100,
+       0x00910091,
+       0x00950095,
+       0x009B009B,
+       0x009E009E,
+       0x00980098,
+       0x00330033,
+       0x00330033,
+       0x002F002F,
+       0x00320032,
+       0x00310031,
+       0x007F007F,
+       0x007F007F,
+       0x007F007F,
+       0x007F007F,
+       0x007F007F,
+       0x00520052,
+       0x00520052,
+       0x00470047,
+       0x00490049,
+       0x00500050,
+       0x00000000,
+       0x00600020,
+       0x40011080,
+       0x08102040,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
        0x0,
-       0x600020,
+       0x0
+};
+
+/* Ext phy ctrl 1-35 regs */
+const u32
+dra_ddr3_ext_phy_ctrl_const_base_666MHz[] = {
+       0x10040100,
+       0x00A400A4,
+       0x00A900A9,
+       0x00B000B0,
+       0x00B000B0,
+       0x00A400A4,
+       0x00390039,
+       0x00320032,
+       0x00320032,
+       0x00320032,
+       0x00440044,
+       0x00550055,
+       0x00550055,
+       0x00550055,
+       0x00550055,
+       0x007F007F,
+       0x004D004D,
+       0x00430043,
+       0x00560056,
+       0x00540054,
+       0x00600060,
+       0x0,
+       0x00600020,
        0x40010080,
-       0x8102040
+       0x08102040,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0,
+       0x0
 };
 
 const struct lpddr2_mr_regs mr_regs = {
@@ -447,27 +549,43 @@ const struct lpddr2_mr_regs mr_regs = {
        .mr16   = MR16_REF_FULL_ARRAY
 };
 
-static void emif_get_ext_phy_ctrl_const_regs(u32 emif_nr, const u32 **regs)
+void __weak emif_get_ext_phy_ctrl_const_regs(u32 emif_nr,
+                                            const u32 **regs,
+                                            u32 *size)
 {
        switch (omap_revision()) {
        case OMAP5430_ES1_0:
        case OMAP5430_ES2_0:
                *regs = ext_phy_ctrl_const_base;
+               *size = ARRAY_SIZE(ext_phy_ctrl_const_base);
                break;
        case OMAP5432_ES1_0:
                *regs = ddr3_ext_phy_ctrl_const_base_es1;
+               *size = ARRAY_SIZE(ddr3_ext_phy_ctrl_const_base_es1);
                break;
        case OMAP5432_ES2_0:
                *regs = ddr3_ext_phy_ctrl_const_base_es2;
+               *size = ARRAY_SIZE(ddr3_ext_phy_ctrl_const_base_es2);
                break;
        case DRA752_ES1_0:
-               if (emif_nr == 1)
+       case DRA752_ES1_1:
+               if (emif_nr == 1) {
                        *regs = dra_ddr3_ext_phy_ctrl_const_base_es1_emif1;
-               else
+                       *size =
+                       ARRAY_SIZE(dra_ddr3_ext_phy_ctrl_const_base_es1_emif1);
+               } else {
                        *regs = dra_ddr3_ext_phy_ctrl_const_base_es1_emif2;
+                       *size =
+                       ARRAY_SIZE(dra_ddr3_ext_phy_ctrl_const_base_es1_emif2);
+               }
+               break;
+       case DRA722_ES1_0:
+               *regs = dra_ddr3_ext_phy_ctrl_const_base_666MHz;
+               *size = ARRAY_SIZE(dra_ddr3_ext_phy_ctrl_const_base_666MHz);
                break;
        default:
                *regs = ddr3_ext_phy_ctrl_const_base_es2;
+               *size = ARRAY_SIZE(ddr3_ext_phy_ctrl_const_base_es2);
 
        }
 }
@@ -477,13 +595,14 @@ void get_lpddr2_mr_regs(const struct lpddr2_mr_regs **regs)
        *regs = &mr_regs;
 }
 
-void do_ext_phy_settings(u32 base, const struct emif_regs *regs)
+static void do_ext_phy_settings_omap5(u32 base, const struct emif_regs *regs)
 {
        u32 *ext_phy_ctrl_base = 0;
        u32 *emif_ext_phy_ctrl_base = 0;
        u32 emif_nr;
        const u32 *ext_phy_ctrl_const_regs;
        u32 i = 0;
+       u32 size;
 
        emif_nr = (base == EMIF1_BASE) ? 1 : 2;
 
@@ -503,8 +622,10 @@ void do_ext_phy_settings(u32 base, const struct emif_regs *regs)
         * external phy 6-24 registers do not change with
         * ddr frequency
         */
-       emif_get_ext_phy_ctrl_const_regs(emif_nr, &ext_phy_ctrl_const_regs);
-       for (i = 0; i < EMIF_EXT_PHY_CTRL_CONST_REG; i++) {
+       emif_get_ext_phy_ctrl_const_regs(emif_nr,
+                                        &ext_phy_ctrl_const_regs, &size);
+
+       for (i = 0; i < size; i++) {
                writel(ext_phy_ctrl_const_regs[i],
                       emif_ext_phy_ctrl_base++);
                /* Update shadow registers */
@@ -513,6 +634,58 @@ void do_ext_phy_settings(u32 base, const struct emif_regs *regs)
        }
 }
 
+static void do_ext_phy_settings_dra7(u32 base, const struct emif_regs *regs)
+{
+       struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+       u32 *emif_ext_phy_ctrl_base = 0;
+       u32 emif_nr;
+       const u32 *ext_phy_ctrl_const_regs;
+       u32 i, hw_leveling, size;
+
+       emif_nr = (base == EMIF1_BASE) ? 1 : 2;
+
+       hw_leveling = regs->emif_rd_wr_lvl_rmp_ctl >> EMIF_REG_RDWRLVL_EN_SHIFT;
+
+       emif_ext_phy_ctrl_base = (u32 *)&(emif->emif_ddr_ext_phy_ctrl_1);
+
+       emif_get_ext_phy_ctrl_const_regs(emif_nr,
+                                        &ext_phy_ctrl_const_regs, &size);
+
+       writel(ext_phy_ctrl_const_regs[0], &emif_ext_phy_ctrl_base[0]);
+       writel(ext_phy_ctrl_const_regs[0], &emif_ext_phy_ctrl_base[1]);
+
+       if (!hw_leveling) {
+               /*
+                * Copy the predefined PHY register values
+                * in case of sw leveling
+                */
+               for (i = 1; i < 25; i++) {
+                       writel(ext_phy_ctrl_const_regs[i],
+                              &emif_ext_phy_ctrl_base[i * 2]);
+                       writel(ext_phy_ctrl_const_regs[i],
+                              &emif_ext_phy_ctrl_base[i * 2 + 1]);
+               }
+       } else {
+               /*
+                * Write the init value for HW levling to occur
+                */
+               for (i = 21; i < 35; i++) {
+                       writel(ext_phy_ctrl_const_regs[i],
+                              &emif_ext_phy_ctrl_base[i * 2]);
+                       writel(ext_phy_ctrl_const_regs[i],
+                              &emif_ext_phy_ctrl_base[i * 2 + 1]);
+               }
+       }
+}
+
+void do_ext_phy_settings(u32 base, const struct emif_regs *regs)
+{
+       if (is_omap54xx())
+               do_ext_phy_settings_omap5(base, regs);
+       else
+               do_ext_phy_settings_dra7(base, regs);
+}
+
 #ifndef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS
 static const struct lpddr2_ac_timings timings_jedec_532_mhz = {
        .max_freq       = 532000000,
@@ -561,6 +734,76 @@ static const struct lpddr2_device_timings dev_4G_S4_timings = {
        .min_tck        = &min_tck,
 };
 
+/*
+ * List of status registers to be controlled back to control registers
+ * after initial leveling
+ * readreg, writereg
+ */
+const struct read_write_regs omap5_bug_00339_regs[] = {
+       { 8,  5 },
+       { 9,  6 },
+       { 10, 7 },
+       { 14, 8 },
+       { 15, 9 },
+       { 16, 10 },
+       { 11, 2 },
+       { 12, 3 },
+       { 13, 4 },
+       { 17, 11 },
+       { 18, 12 },
+       { 19, 13 },
+};
+
+const struct read_write_regs dra_bug_00339_regs[] = {
+       { 7,  7 },
+       { 8,  8 },
+       { 9,  9 },
+       { 10, 10 },
+       { 11, 11 },
+       { 12, 2 },
+       { 13, 3 },
+       { 14, 4 },
+       { 15, 5 },
+       { 16, 6 },
+       { 17, 12 },
+       { 18, 13 },
+       { 19, 14 },
+       { 20, 15 },
+       { 21, 16 },
+       { 22, 17 },
+       { 23, 18 },
+       { 24, 19 },
+       { 25, 20 },
+       { 26, 21}
+};
+
+const struct read_write_regs *get_bug_regs(u32 *iterations)
+{
+       const struct read_write_regs *bug_00339_regs_ptr = NULL;
+
+       switch (omap_revision()) {
+       case OMAP5430_ES1_0:
+       case OMAP5430_ES2_0:
+       case OMAP5432_ES1_0:
+       case OMAP5432_ES2_0:
+               bug_00339_regs_ptr = omap5_bug_00339_regs;
+               *iterations = sizeof(omap5_bug_00339_regs)/
+                            sizeof(omap5_bug_00339_regs[0]);
+               break;
+       case DRA752_ES1_0:
+       case DRA752_ES1_1:
+       case DRA722_ES1_0:
+               bug_00339_regs_ptr = dra_bug_00339_regs;
+               *iterations = sizeof(dra_bug_00339_regs)/
+                            sizeof(dra_bug_00339_regs[0]);
+               break;
+       default:
+               printf("\n Error: UnKnown SOC");
+       }
+
+       return bug_00339_regs_ptr;
+}
+
 void emif_get_device_timings_sdp(u32 emif_nr,
                const struct lpddr2_device_timings **cs0_device_timings,
                const struct lpddr2_device_timings **cs1_device_timings)