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-rw-r--r--arch/arm/cpu/armv7/omap-common/emif-common.c100
-rw-r--r--arch/arm/cpu/armv7/omap5/hw_data.c9
-rw-r--r--arch/arm/cpu/armv7/omap5/hwinit.c12
-rw-r--r--arch/arm/cpu/armv7/omap5/sdram.c146
-rw-r--r--arch/arm/include/asm/arch-omap5/omap.h1
-rw-r--r--arch/arm/include/asm/emif.h4
6 files changed, 174 insertions, 98 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/emif-common.c b/arch/arm/cpu/armv7/omap-common/emif-common.c
index b0e1caa356..dc1ea1d96d 100644
--- a/arch/arm/cpu/armv7/omap-common/emif-common.c
+++ b/arch/arm/cpu/armv7/omap-common/emif-common.c
@@ -206,7 +206,7 @@ void emif_update_timings(u32 base, const struct emif_regs *regs)
}
}
-static void ddr3_leveling(u32 base, const struct emif_regs *regs)
+static void omap5_ddr3_leveling(u32 base, const struct emif_regs *regs)
{
struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
@@ -217,47 +217,86 @@ static void ddr3_leveling(u32 base, const struct emif_regs *regs)
/*
* Set invert_clkout (if activated)--DDR_PHYCTRL_1
- * Invert clock adds an additional half cycle delay on the command
- * interface. The additional half cycle, is usually meant to enable
- * leveling in the situation that DQS is later than CK on the board.It
- * also helps provide some additional margin for leveling.
+ * Invert clock adds an additional half cycle delay on the
+ * command interface. The additional half cycle, is usually
+ * meant to enable leveling in the situation that DQS is later
+ * than CK on the board.It also helps provide some additional
+ * margin for leveling.
*/
- 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);
+ 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);
__udelay(130);
writel(((LP_MODE_DISABLE << EMIF_REG_LP_MODE_SHIFT)
- & EMIF_REG_LP_MODE_MASK), &emif->emif_pwr_mgmt_ctrl);
+ & EMIF_REG_LP_MODE_MASK), &emif->emif_pwr_mgmt_ctrl);
/* Launch Full leveling */
writel(DDR3_FULL_LVL, &emif->emif_rd_wr_lvl_ctl);
/* Wait till full leveling is complete */
readl(&emif->emif_rd_wr_lvl_ctl);
- __udelay(130);
+ __udelay(130);
/* Read data eye leveling no of samples */
config_data_eye_leveling_samples(base);
- /* Launch 8 incremental WR_LVL- to compensate for PHY limitation */
- writel(0x2 << EMIF_REG_WRLVLINC_INT_SHIFT, &emif->emif_rd_wr_lvl_ctl);
+ /*
+ * Launch 8 incremental WR_LVL- to compensate for
+ * PHY limitation.
+ */
+ writel(0x2 << EMIF_REG_WRLVLINC_INT_SHIFT,
+ &emif->emif_rd_wr_lvl_ctl);
+
__udelay(130);
/* Launch Incremental leveling */
writel(DDR3_INC_LVL, &emif->emif_rd_wr_lvl_ctl);
- __udelay(130);
+ __udelay(130);
}
-static void ddr3_sw_leveling(u32 base, const struct emif_regs *regs)
+static void dra7_ddr3_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);
+ u32 fifo_reg;
+
+ fifo_reg = readl(&emif->emif_ddr_fifo_misaligned_clear_1);
+ writel(fifo_reg | 0x00000100,
+ &emif->emif_ddr_fifo_misaligned_clear_1);
+
+ fifo_reg = readl(&emif->emif_ddr_fifo_misaligned_clear_2);
+ writel(fifo_reg | 0x00000100,
+ &emif->emif_ddr_fifo_misaligned_clear_2);
+
+ /* Launch Full leveling */
+ writel(DDR3_FULL_LVL, &emif->emif_rd_wr_lvl_ctl);
+
+ /* Wait till full leveling is complete */
+ readl(&emif->emif_rd_wr_lvl_ctl);
+ __udelay(130);
+
+ /* Read data eye leveling no of samples */
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);
+ /*
+ * Disable leveling. This is because if leveling is kept
+ * enabled, then PHY triggers a false leveling during
+ * EMIF-idle scenario which results in wrong delay
+ * values getting updated. After this the EMIF becomes
+ * unaccessible. So disable it after the first time
+ */
+ writel(0x0, &emif->emif_rd_wr_lvl_rmp_ctl);
+}
+
+static void ddr3_leveling(u32 base, const struct emif_regs *regs)
+{
+ if (is_omap54xx())
+ omap5_ddr3_leveling(base, regs);
+ else
+ dra7_ddr3_leveling(base, regs);
}
static void ddr3_init(u32 base, const struct emif_regs *regs)
@@ -270,9 +309,6 @@ 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);
/* Update timing registers */
@@ -283,15 +319,24 @@ static void ddr3_init(u32 base, const struct emif_regs *regs)
writel(regs->ref_ctrl, &emif->emif_sdram_ref_ctrl);
writel(regs->read_idle_ctrl, &emif->emif_read_idlectrl);
- do_ext_phy_settings(base, regs);
+ /*
+ * The same sequence should work on OMAP5432 as well. But strange that
+ * it is not working
+ */
+ if (omap_revision() == DRA752_ES1_0) {
+ do_ext_phy_settings(base, regs);
+ writel(regs->sdram_config2, &emif->emif_lpddr2_nvm_config);
+ writel(regs->sdram_config_init, &emif->emif_sdram_config);
+ } else {
+ writel(regs->sdram_config2, &emif->emif_lpddr2_nvm_config);
+ writel(regs->sdram_config_init, &emif->emif_sdram_config);
+ do_ext_phy_settings(base, regs);
+ }
/* enable leveling */
writel(regs->emif_rd_wr_lvl_rmp_ctl, &emif->emif_rd_wr_lvl_rmp_ctl);
- if (omap_revision() == DRA752_ES1_0)
- ddr3_sw_leveling(base, regs);
- else
- ddr3_leveling(base, regs);
+ ddr3_leveling(base, regs);
}
#ifndef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
@@ -1079,10 +1124,7 @@ 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);
- if (omap_revision() == DRA752_ES1_0)
- ddr3_sw_leveling(base, regs);
- else
- ddr3_leveling(base, regs);
+ 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 a1b249e734..82910e87a0 100644
--- a/arch/arm/cpu/armv7/omap5/hw_data.c
+++ b/arch/arm/cpu/armv7/omap5/hw_data.c
@@ -600,6 +600,7 @@ const struct ctrl_ioregs ioregs_omap5432_es1 = {
.ctrl_ddrio_1 = DDR_IO_1_VREF_CELLS_DDR3_VALUE,
.ctrl_ddrio_2 = DDR_IO_2_VREF_CELLS_DDR3_VALUE,
.ctrl_emif_sdram_config_ext = SDRAM_CONFIG_EXT_RD_LVL_11_SAMPLES,
+ .ctrl_emif_sdram_config_ext_final = SDRAM_CONFIG_EXT_RD_LVL_4_SAMPLES,
};
const struct ctrl_ioregs ioregs_omap5432_es2 = {
@@ -610,16 +611,18 @@ const struct ctrl_ioregs ioregs_omap5432_es2 = {
.ctrl_ddrio_1 = DDR_IO_1_VREF_CELLS_DDR3_VALUE_ES2,
.ctrl_ddrio_2 = DDR_IO_2_VREF_CELLS_DDR3_VALUE_ES2,
.ctrl_emif_sdram_config_ext = SDRAM_CONFIG_EXT_RD_LVL_11_SAMPLES,
+ .ctrl_emif_sdram_config_ext_final = SDRAM_CONFIG_EXT_RD_LVL_4_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_0 = 0xA2084210,
+ .ctrl_ddrio_1 = 0x84210840,
.ctrl_ddrio_2 = 0x84210000,
- .ctrl_emif_sdram_config_ext = 0xb2c00000,
+ .ctrl_emif_sdram_config_ext = 0x0001C1A7,
+ .ctrl_emif_sdram_config_ext_final = 0x000101A7,
.ctrl_ddr_ctrl_ext_0 = 0xA2000000,
};
diff --git a/arch/arm/cpu/armv7/omap5/hwinit.c b/arch/arm/cpu/armv7/omap5/hwinit.c
index 1065891ae1..82c86382f9 100644
--- a/arch/arm/cpu/armv7/omap5/hwinit.c
+++ b/arch/arm/cpu/armv7/omap5/hwinit.c
@@ -297,13 +297,17 @@ void srcomp_enable(void)
void config_data_eye_leveling_samples(u32 emif_base)
{
+ const struct ctrl_ioregs *ioregs;
+
+ get_ioregs(&ioregs);
+
/*EMIF_SDRAM_CONFIG_EXT-Read data eye leveling no of samples =4*/
if (emif_base == EMIF1_BASE)
- writel(SDRAM_CONFIG_EXT_RD_LVL_4_SAMPLES,
- (*ctrl)->control_emif1_sdram_config_ext);
+ writel(ioregs->ctrl_emif_sdram_config_ext_final,
+ (*ctrl)->control_emif1_sdram_config_ext);
else if (emif_base == EMIF2_BASE)
- writel(SDRAM_CONFIG_EXT_RD_LVL_4_SAMPLES,
- (*ctrl)->control_emif2_sdram_config_ext);
+ writel(ioregs->ctrl_emif_sdram_config_ext_final,
+ (*ctrl)->control_emif2_sdram_config_ext);
}
void init_omap_revision(void)
diff --git a/arch/arm/cpu/armv7/omap5/sdram.c b/arch/arm/cpu/armv7/omap5/sdram.c
index e65c1160e2..2aae3efb71 100644
--- a/arch/arm/cpu/armv7/omap5/sdram.c
+++ b/arch/arm/cpu/armv7/omap5/sdram.c
@@ -148,13 +148,13 @@ const struct emif_regs emif_1_regs_ddr3_532_mhz_1cs_dra_es1 = {
.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_ddr_phy_ctlr_1_init = 0x0024400A,
+ .emif_ddr_phy_ctlr_1 = 0x0024400A,
+ .emif_ddr_ext_phy_ctrl_1 = 0x10040100,
+ .emif_ddr_ext_phy_ctrl_2 = 0x00B000B0,
+ .emif_ddr_ext_phy_ctrl_3 = 0x00B000B0,
+ .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,
@@ -172,13 +172,13 @@ const struct emif_regs emif_2_regs_ddr3_532_mhz_1cs_dra_es1 = {
.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_ddr_phy_ctlr_1_init = 0x0024400A,
+ .emif_ddr_phy_ctlr_1 = 0x0024400A,
+ .emif_ddr_ext_phy_ctrl_1 = 0x10040100,
+ .emif_ddr_ext_phy_ctrl_2 = 0x00B000B0,
+ .emif_ddr_ext_phy_ctrl_3 = 0x00B000B0,
+ .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,
@@ -306,7 +306,7 @@ 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,
@@ -329,7 +329,7 @@ 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,
@@ -352,7 +352,7 @@ 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,
@@ -376,51 +376,61 @@ const u32 ddr3_ext_phy_ctrl_const_base_es2[EMIF_EXT_PHY_CTRL_CONST_REG] = {
};
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,
+dra_ddr3_ext_phy_ctrl_const_base_es1_emif1[] = {
+ 0x00B000B0,
+ 0x00400040,
+ 0x00400040,
+ 0x00400040,
+ 0x00400040,
+ 0x00400040,
+ 0x00800080,
+ 0x00800080,
+ 0x00800080,
+ 0x00800080,
+ 0x00800080,
+ 0x00600060,
+ 0x00600060,
+ 0x00600060,
+ 0x00600060,
+ 0x00600060,
+ 0x00800080,
+ 0x00800080,
0x40010080,
- 0x8102040
+ 0x08102040,
+ 0x0,
+ 0x0,
+ 0x0,
+ 0x0,
+ 0x0
};
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[] = {
+ 0x00BB00BB,
+ 0x00440044,
+ 0x00440044,
+ 0x00440044,
+ 0x00440044,
+ 0x00440044,
+ 0x007F007F,
+ 0x007F007F,
+ 0x007F007F,
+ 0x007F007F,
+ 0x007F007F,
+ 0x00600060,
+ 0x00600060,
+ 0x00600060,
+ 0x00600060,
+ 0x00600060,
0x0,
- 0x600020,
+ 0x00600020,
0x40010080,
- 0x8102040
+ 0x08102040,
+ 0x0,
+ 0x0,
+ 0x0,
+ 0x0,
+ 0x0
};
const struct lpddr2_mr_regs mr_regs = {
@@ -431,27 +441,38 @@ 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)
+static void 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)
+ 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;
default:
*regs = ddr3_ext_phy_ctrl_const_base_es2;
+ *size = ARRAY_SIZE(ddr3_ext_phy_ctrl_const_base_es2);
}
}
@@ -468,6 +489,7 @@ void do_ext_phy_settings(u32 base, const struct emif_regs *regs)
u32 emif_nr;
const u32 *ext_phy_ctrl_const_regs;
u32 i = 0;
+ u32 size;
emif_nr = (base == EMIF1_BASE) ? 1 : 2;
@@ -487,8 +509,10 @@ 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 */
diff --git a/arch/arm/include/asm/arch-omap5/omap.h b/arch/arm/include/asm/arch-omap5/omap.h
index 3c2306fe37..f1d1160273 100644
--- a/arch/arm/include/asm/arch-omap5/omap.h
+++ b/arch/arm/include/asm/arch-omap5/omap.h
@@ -239,6 +239,7 @@ struct ctrl_ioregs {
u32 ctrl_ddrio_1;
u32 ctrl_ddrio_2;
u32 ctrl_emif_sdram_config_ext;
+ u32 ctrl_emif_sdram_config_ext_final;
u32 ctrl_ddr_ctrl_ext_0;
};
diff --git a/arch/arm/include/asm/emif.h b/arch/arm/include/asm/emif.h
index 1b94a99c54..c12beea0ca 100644
--- a/arch/arm/include/asm/emif.h
+++ b/arch/arm/include/asm/emif.h
@@ -581,7 +581,6 @@
(0xFF << EMIF_SYS_ADDR_SHIFT))
#define EMIF_EXT_PHY_CTRL_TIMING_REG 0x5
-#define EMIF_EXT_PHY_CTRL_CONST_REG 0x14
/* Reg mapping structure */
struct emif_reg_struct {
@@ -690,6 +689,9 @@ struct emif_reg_struct {
u32 emif_ddr_ext_phy_ctrl_23_shdw;
u32 emif_ddr_ext_phy_ctrl_24;
u32 emif_ddr_ext_phy_ctrl_24_shdw;
+ u32 padding[22];
+ u32 emif_ddr_fifo_misaligned_clear_1;
+ u32 emif_ddr_fifo_misaligned_clear_2;
};
struct dmm_lisa_map_regs {
generated by cgit (git 2.34.1) at 2024-12-27 20:14:56 +0000