ARM: DRA7xx: EMIF: Change settings required for EVM board

DRA7 EVM board has the below configuration. Adding the
settings for the same here.

   2Gb_1_35V_DDR3L part * 2 on EMIF1
   2Gb_1_35V_DDR3L part * 4 on EMIF2

Signed-off-by: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

diff --git a/arch/arm/cpu/armv7/omap-common/emif-common.c b/arch/arm/cpu/armv7/omap-common/emif-common.c
index 882396759efa06f6c6dcde77e02601f3d2966464..652e5a71b3445b574945546ec25c84a405dd2f54 100644 (file)
--- a/arch/arm/cpu/armv7/omap-common/emif-common.c
+++ b/arch/arm/cpu/armv7/omap-common/emif-common.c
@@ -209,7 +209,8 @@ void emif_update_timings(u32 base, const struct emif_regs *regs)
        writel(regs->temp_alert_config, &emif->emif_temp_alert_config);
        writel(regs->emif_ddr_phy_ctlr_1, &emif->emif_ddr_phy_ctrl_1_shdw);
 
-       if (omap_revision() >= OMAP5430_ES1_0) {
+       if ((omap_revision() >= OMAP5430_ES1_0) ||
+                               (omap_revision() == DRA752_ES1_0)) {
                writel(EMIF_L3_CONFIG_VAL_SYS_10_MPU_5_LL_0,
                        &emif->emif_l3_config);
        } else if (omap_revision() >= OMAP4460_ES1_0) {
@@ -263,6 +264,18 @@ static void ddr3_leveling(u32 base, const struct emif_regs *regs)
        __udelay(130);
 }
 
+static void ddr3_sw_leveling(u32 base, const struct emif_regs *regs)
+{
+       struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+
+       writel(regs->emif_ddr_phy_ctlr_1, &emif->emif_ddr_phy_ctrl_1);
+       writel(regs->emif_ddr_phy_ctlr_1, &emif->emif_ddr_phy_ctrl_1_shdw);
+       config_data_eye_leveling_samples(base);
+
+       writel(regs->emif_rd_wr_lvl_ctl, &emif->emif_rd_wr_lvl_ctl);
+       writel(regs->sdram_config, &emif->emif_sdram_config);
+}
+
 static void ddr3_init(u32 base, const struct emif_regs *regs)
 {
        struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
@@ -273,6 +286,7 @@ static void ddr3_init(u32 base, const struct emif_regs *regs)
         * defined, contents of mode Registers must be fully initialized.
         * H/W takes care of this initialization
         */
+       writel(regs->sdram_config2, &emif->emif_lpddr2_nvm_config);
        writel(regs->sdram_config_init, &emif->emif_sdram_config);
 
        writel(regs->emif_ddr_phy_ctlr_1_init, &emif->emif_ddr_phy_ctrl_1);
@@ -290,7 +304,10 @@ static void ddr3_init(u32 base, const struct emif_regs *regs)
        /* enable leveling */
        writel(regs->emif_rd_wr_lvl_rmp_ctl, &emif->emif_rd_wr_lvl_rmp_ctl);
 
-       ddr3_leveling(base, regs);
+       if (omap_revision() == DRA752_ES1_0)
+               ddr3_sw_leveling(base, regs);
+       else
+               ddr3_leveling(base, regs);
 }
 
 #ifndef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
@@ -1078,7 +1095,10 @@ static void do_sdram_init(u32 base)
        if (warm_reset() && (emif_sdram_type() == EMIF_SDRAM_TYPE_DDR3)) {
                set_lpmode_selfrefresh(base);
                emif_reset_phy(base);
-               ddr3_leveling(base, regs);
+               if (omap_revision() == DRA752_ES1_0)
+                       ddr3_sw_leveling(base, regs);
+               else
+                       ddr3_leveling(base, regs);
        }
 
        /* Write to the shadow registers */

diff --git a/arch/arm/cpu/armv7/omap5/hw_data.c b/arch/arm/cpu/armv7/omap5/hw_data.c
index 44552c342fc0f21181c31b22f3f62ded6f7a66ef..56cf1f8c60d09b10e3879201b3e2362ebab80863 100644 (file)
--- a/arch/arm/cpu/armv7/omap5/hw_data.c
+++ b/arch/arm/cpu/armv7/omap5/hw_data.c
@@ -602,6 +602,17 @@ const struct ctrl_ioregs ioregs_omap5432_es2 = {
        .ctrl_emif_sdram_config_ext = SDRAM_CONFIG_EXT_RD_LVL_11_SAMPLES,
 };
 
+const struct ctrl_ioregs ioregs_dra7xx_es1 = {
+       .ctrl_ddrch = 0x40404040,
+       .ctrl_lpddr2ch = 0x40404040,
+       .ctrl_ddr3ch = 0x80808080,
+       .ctrl_ddrio_0 = 0xbae8c631,
+       .ctrl_ddrio_1 = 0xb46318d8,
+       .ctrl_ddrio_2 = 0x84210000,
+       .ctrl_emif_sdram_config_ext = 0xb2c00000,
+       .ctrl_ddr_ctrl_ext_0 = 0xA2000000,
+};
+
 void hw_data_init(void)
 {
        u32 omap_rev = omap_revision();
@@ -644,14 +655,16 @@ void get_ioregs(const struct ctrl_ioregs **regs)
        case OMAP5430_ES1_0:
        case OMAP5430_ES2_0:
                *regs = &ioregs_omap5430;
-       break;
+               break;
        case OMAP5432_ES1_0:
                *regs = &ioregs_omap5432_es1;
-       break;
+               break;
        case OMAP5432_ES2_0:
-       case DRA752_ES1_0:
                *regs = &ioregs_omap5432_es2;
-       break;
+               break;
+       case DRA752_ES1_0:
+               *regs = &ioregs_dra7xx_es1;
+               break;
 
        default:
                printf("\n INVALID OMAP REVISION ");

diff --git a/arch/arm/cpu/armv7/omap5/hwinit.c b/arch/arm/cpu/armv7/omap5/hwinit.c
index 40dbf45705ef93cc9a4f4ce6b31037d47015185d..daf124e99cb034403bed4c765b331b3cb83db3f9 100644 (file)
--- a/arch/arm/cpu/armv7/omap5/hwinit.c
+++ b/arch/arm/cpu/armv7/omap5/hwinit.c
@@ -100,16 +100,21 @@ static void io_settings_ddr3(void)
        writel(ioregs->ctrl_emif_sdram_config_ext,
               (*ctrl)->control_emif2_sdram_config_ext);
 
-       /* Disable DLL select */
-       io_settings = (readl((*ctrl)->control_port_emif1_sdram_config)
+       if (is_omap54xx()) {
+               /* Disable DLL select */
+               io_settings = (readl((*ctrl)->control_port_emif1_sdram_config)
                                                        & 0xFFEFFFFF);
-       writel(io_settings,
-               (*ctrl)->control_port_emif1_sdram_config);
+               writel(io_settings,
+                       (*ctrl)->control_port_emif1_sdram_config);
 
-       io_settings = (readl((*ctrl)->control_port_emif2_sdram_config)
+               io_settings = (readl((*ctrl)->control_port_emif2_sdram_config)
                                                        & 0xFFEFFFFF);
-       writel(io_settings,
-               (*ctrl)->control_port_emif2_sdram_config);
+               writel(io_settings,
+                       (*ctrl)->control_port_emif2_sdram_config);
+       } else {
+               writel(ioregs->ctrl_ddr_ctrl_ext_0,
+                               (*ctrl)->control_ddr_control_ext_0);
+       }
 }
 
 /*

diff --git a/arch/arm/cpu/armv7/omap5/prcm-regs.c b/arch/arm/cpu/armv7/omap5/prcm-regs.c
index b7c2f98ddc891207e17671fd9d11335525cad03e..5a7370c773240c4e07fccb64ad97383ad01f2eee 100644 (file)
--- a/arch/arm/cpu/armv7/omap5/prcm-regs.c
+++ b/arch/arm/cpu/armv7/omap5/prcm-regs.c
@@ -439,6 +439,7 @@ struct omap_sys_ctrl_regs const dra7xx_ctrl = {
        .control_srcomp_east_side               = 0x4A002E7C,
        .control_srcomp_west_side               = 0x4A002E80,
        .control_srcomp_code_latch              = 0x4A002E84,
+       .control_ddr_control_ext_0              = 0x4A002E88,
        .control_padconf_core_base              = 0x4A003400,
        .control_port_emif1_sdram_config        = 0x4AE0C110,
        .control_port_emif1_lpddr2_nvm_config   = 0x4AE0C114,

diff --git a/arch/arm/cpu/armv7/omap5/sdram.c b/arch/arm/cpu/armv7/omap5/sdram.c
index 6b461e4846021fee9899e77cbd23ae870382d76a..1b445a61ebabf47731a578c02f0dd2659289d9b6 100644 (file)
--- a/arch/arm/cpu/armv7/omap5/sdram.c
+++ b/arch/arm/cpu/armv7/omap5/sdram.c
@@ -108,6 +108,7 @@ const struct emif_regs emif_regs_266_mhz_2cs = {
 const struct emif_regs emif_regs_ddr3_532_mhz_1cs = {
        .sdram_config_init              = 0x61851B32,
        .sdram_config                   = 0x61851B32,
+       .sdram_config2                  = 0x0,
        .ref_ctrl                       = 0x00001035,
        .sdram_tim1                     = 0xCCCF36B3,
        .sdram_tim2                     = 0x308F7FDA,
@@ -131,6 +132,7 @@ const struct emif_regs emif_regs_ddr3_532_mhz_1cs = {
 const struct emif_regs emif_regs_ddr3_532_mhz_1cs_es2 = {
        .sdram_config_init              = 0x61851B32,
        .sdram_config                   = 0x61851B32,
+       .sdram_config2                  = 0x0,
        .ref_ctrl                       = 0x00001035,
        .sdram_tim1                     = 0xCCCF36B3,
        .sdram_tim2                     = 0x308F7FDA,
@@ -151,6 +153,54 @@ const struct emif_regs emif_regs_ddr3_532_mhz_1cs_es2 = {
        .emif_rd_wr_exec_thresh         = 0x40000305
 };
 
+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,
+       .sdram_tim1                     = 0xCCCF36B3,
+       .sdram_tim2                     = 0x308F7FDA,
+       .sdram_tim3                     = 0x027F88A8,
+       .read_idle_ctrl                 = 0x00050000,
+       .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_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_2_regs_ddr3_532_mhz_1cs_dra_es1 = {
+       .sdram_config_init              = 0x61851B32,
+       .sdram_config                   = 0x61851B32,
+       .sdram_config2                  = 0x08000000,
+       .ref_ctrl                       = 0x00001035,
+       .sdram_tim1                     = 0xCCCF36B3,
+       .sdram_tim2                     = 0x308F7FDA,
+       .sdram_tim3                     = 0x027F88A8,
+       .read_idle_ctrl                 = 0x00050000,
+       .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_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 dmm_lisa_map_regs lisa_map_4G_x_2_x_2 = {
        .dmm_lisa_map_0 = 0x0,
        .dmm_lisa_map_1 = 0x0,
@@ -159,11 +209,39 @@ const struct dmm_lisa_map_regs lisa_map_4G_x_2_x_2 = {
        .is_ma_present  = 0x1
 };
 
-const struct dmm_lisa_map_regs lisa_map_512M_x_1 = {
+/*
+ * DRA752 EVM board has 1.5 GB of memory
+ * EMIF1 --> 2Gb * 2 =  512MB
+ * EMIF2 --> 2Gb * 4 =  1GB
+ * so mapping 1GB interleaved and 512MB non-interleaved
+ */
+const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2_2G_x_1_x_2 = {
+       .dmm_lisa_map_0 = 0x0,
+       .dmm_lisa_map_1 = 0x80640300,
+       .dmm_lisa_map_2 = 0xC0500220,
+       .dmm_lisa_map_3 = 0xFF020100,
+       .is_ma_present  = 0x1
+};
+
+/*
+ * DRA752 EVM EMIF1 ONLY CONFIGURATION
+ */
+const struct dmm_lisa_map_regs lisa_map_2G_x_1_x_2 = {
        .dmm_lisa_map_0 = 0x0,
        .dmm_lisa_map_1 = 0x0,
-       .dmm_lisa_map_2 = 0x0,
-       .dmm_lisa_map_3 = 0x80500100,
+       .dmm_lisa_map_2 = 0x80500100,
+       .dmm_lisa_map_3 = 0xFF020100,
+       .is_ma_present  = 0x1
+};
+
+/*
+ * DRA752 EVM EMIF2 ONLY CONFIGURATION
+ */
+const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2 = {
+       .dmm_lisa_map_0 = 0x0,
+       .dmm_lisa_map_1 = 0x0,
+       .dmm_lisa_map_2 = 0x80600200,
+       .dmm_lisa_map_3 = 0xFF020100,
        .is_ma_present  = 0x1
 };
 
@@ -180,9 +258,20 @@ static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs)
                *regs = &emif_regs_532_mhz_2cs_es2;
                break;
        case OMAP5432_ES2_0:
+               *regs = &emif_regs_ddr3_532_mhz_1cs_es2;
+               break;
        case DRA752_ES1_0:
+               switch (emif_nr) {
+               case 1:
+                       *regs = &emif_1_regs_ddr3_532_mhz_1cs_dra_es1;
+                       break;
+               case 2:
+                       *regs = &emif_2_regs_ddr3_532_mhz_1cs_dra_es1;
+                       break;
+               }
+               break;
        default:
-               *regs = &emif_regs_ddr3_532_mhz_1cs_es2;
+               *regs = &emif_1_regs_ddr3_532_mhz_1cs_dra_es1;
        }
 }
 
@@ -201,7 +290,7 @@ static void emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs
                break;
        case DRA752_ES1_0:
        default:
-               *dmm_lisa_regs = &lisa_map_512M_x_1;
+               *dmm_lisa_regs = &lisa_map_2G_x_2_x_2_2G_x_1_x_2;
        }
 
 }
@@ -252,7 +341,8 @@ const u32 ext_phy_ctrl_const_base[EMIF_EXT_PHY_CTRL_CONST_REG] = {
        0x00000000,
        0x00000000,
        0x00000000,
-       0x00000077
+       0x00000077,
+       0x0
 };
 
 const u32 ddr3_ext_phy_ctrl_const_base_es1[EMIF_EXT_PHY_CTRL_CONST_REG] = {
@@ -274,7 +364,8 @@ const u32 ddr3_ext_phy_ctrl_const_base_es1[EMIF_EXT_PHY_CTRL_CONST_REG] = {
        0x00000000,
        0x00000000,
        0x00000000,
-       0x00000057
+       0x00000057,
+       0x0
 };
 
 const u32 ddr3_ext_phy_ctrl_const_base_es2[EMIF_EXT_PHY_CTRL_CONST_REG] = {
@@ -296,7 +387,56 @@ const u32 ddr3_ext_phy_ctrl_const_base_es2[EMIF_EXT_PHY_CTRL_CONST_REG] = {
        0x00000000,
        0x00000000,
        0x00000000,
-       0x00000057
+       0x00000057,
+       0x0
+};
+
+const u32
+dra_ddr3_ext_phy_ctrl_const_base_es1_emif1[EMIF_EXT_PHY_CTRL_CONST_REG] = {
+       0x009E009E,
+       0x002E002E,
+       0x002E002E,
+       0x002E002E,
+       0x002E002E,
+       0x002E002E,
+       0x004D004D,
+       0x004D004D,
+       0x004D004D,
+       0x004D004D,
+       0x004D004D,
+       0x004D004D,
+       0x004D004D,
+       0x004D004D,
+       0x004D004D,
+       0x004D004D,
+       0x0,
+       0x600020,
+       0x40010080,
+       0x8102040
+};
+
+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,
+       0x0,
+       0x600020,
+       0x40010080,
+       0x8102040
 };
 
 const struct lpddr2_mr_regs mr_regs = {
@@ -307,7 +447,7 @@ const struct lpddr2_mr_regs mr_regs = {
        .mr16   = MR16_REF_FULL_ARRAY
 };
 
-static void emif_get_ext_phy_ctrl_const_regs(const u32 **regs)
+static void emif_get_ext_phy_ctrl_const_regs(u32 emif_nr, const u32 **regs)
 {
        switch (omap_revision()) {
        case OMAP5430_ES1_0:
@@ -318,7 +458,14 @@ static void emif_get_ext_phy_ctrl_const_regs(const u32 **regs)
                *regs = ddr3_ext_phy_ctrl_const_base_es1;
                break;
        case OMAP5432_ES2_0:
+               *regs = ddr3_ext_phy_ctrl_const_base_es2;
+               break;
        case DRA752_ES1_0:
+               if (emif_nr == 1)
+                       *regs = dra_ddr3_ext_phy_ctrl_const_base_es1_emif1;
+               else
+                       *regs = dra_ddr3_ext_phy_ctrl_const_base_es1_emif2;
+               break;
        default:
                *regs = ddr3_ext_phy_ctrl_const_base_es2;
 
@@ -334,9 +481,12 @@ void do_ext_phy_settings(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;
 
+       emif_nr = (base == EMIF1_BASE) ? 1 : 2;
+
        struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
 
        ext_phy_ctrl_base = (u32 *) &(regs->emif_ddr_ext_phy_ctrl_1);
@@ -353,7 +503,7 @@ 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(&ext_phy_ctrl_const_regs);
+       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++) {
                writel(ext_phy_ctrl_const_regs[i],
                       emif_ext_phy_ctrl_base++);

diff --git a/arch/arm/include/asm/arch-omap5/omap.h b/arch/arm/include/asm/arch-omap5/omap.h
index bb6a757dc03c875a9f9f883e0e7bc18edaae1194..817c1ff27fc599b10811d743e5e260557b0c2390 100644 (file)
--- a/arch/arm/include/asm/arch-omap5/omap.h
+++ b/arch/arm/include/asm/arch-omap5/omap.h
@@ -221,6 +221,7 @@ struct ctrl_ioregs {
        u32 ctrl_ddrio_1;
        u32 ctrl_ddrio_2;
        u32 ctrl_emif_sdram_config_ext;
+       u32 ctrl_ddr_ctrl_ext_0;
 };
 #endif /* __ASSEMBLY__ */
 #endif

diff --git a/arch/arm/include/asm/emif.h b/arch/arm/include/asm/emif.h
index 5f11d7b72eae1a8b49705a876806f9357ac78130..1b94a99c54d46440f87e2907cb329e911153ef59 100644 (file)
--- a/arch/arm/include/asm/emif.h
+++ b/arch/arm/include/asm/emif.h
@@ -581,7 +581,7 @@
        (0xFF << EMIF_SYS_ADDR_SHIFT))
 
 #define EMIF_EXT_PHY_CTRL_TIMING_REG   0x5
-#define EMIF_EXT_PHY_CTRL_CONST_REG    0x13
+#define EMIF_EXT_PHY_CTRL_CONST_REG    0x14
 
 /* Reg mapping structure */
 struct emif_reg_struct {
@@ -855,13 +855,10 @@ struct dmm_lisa_map_regs {
 #define DPD_ENABLE     1
 
 /* Maximum delay before Low Power Modes */
-#ifndef CONFIG_OMAP54XX
-#define REG_CS_TIM             0xF
-#else
 #define REG_CS_TIM             0x0
-#endif
-#define REG_SR_TIM             0xF
-#define REG_PD_TIM             0xF
+#define REG_SR_TIM             0x0
+#define REG_PD_TIM             0x0
+
 
 /* EMIF_PWR_MGMT_CTRL register */
 #define EMIF_PWR_MGMT_CTRL (\
@@ -1113,6 +1110,7 @@ struct emif_regs {
        u32 freq;
        u32 sdram_config_init;
        u32 sdram_config;
+       u32 sdram_config2;
        u32 ref_ctrl;
        u32 sdram_tim1;
        u32 sdram_tim2;

diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index d5daa27d1e74c056fe9d6b1c0b3ef54bcb28ab81..fa2963e5697df4425b408d72e47bf1ef2ea9c07f 100644 (file)
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -401,6 +401,7 @@ struct omap_sys_ctrl_regs {
        u32 control_ddrio_0;
        u32 control_ddrio_1;
        u32 control_ddrio_2;
+       u32 control_ddr_control_ext_0;
        u32 control_lpddr2io1_0;
        u32 control_lpddr2io1_1;
        u32 control_lpddr2io1_2;