The OMAP5 silicon has new DDR PHY design, which includes a external PHY
as well. So configuring the ext PHY parameters here. Also the EMIF timimg
registers and a couple of DDR mode registers needs to be updated based on
the testing from the actual silicon.
Signed-off-by: R Sricharan <r.sricha...@ti.com>
---
arch/arm/cpu/armv7/omap-common/clocks-common.c | 18 ++++--
arch/arm/cpu/armv7/omap-common/emif-common.c | 41 +++++++++++-
arch/arm/cpu/armv7/omap4/sdram_elpida.c | 4 +
arch/arm/cpu/armv7/omap5/sdram_elpida.c | 81 ++++++++++++++++++------
arch/arm/include/asm/emif.h | 72 ++++++++++++++++++++-
5 files changed, 188 insertions(+), 28 deletions(-)
diff --git a/arch/arm/cpu/armv7/omap-common/clocks-common.c
b/arch/arm/cpu/armv7/omap-common/clocks-common.c
index 5e30cd4..20029b5 100644
--- a/arch/arm/cpu/armv7/omap-common/clocks-common.c
+++ b/arch/arm/cpu/armv7/omap-common/clocks-common.c
@@ -459,6 +459,7 @@ void freq_update_core(void)
{
u32 freq_config1 = 0;
const struct dpll_params *core_dpll_params;
+ u32 omap_rev = omap_revision();
core_dpll_params = get_core_dpll_params();
/* Put EMIF clock domain in sw wakeup mode */
@@ -484,11 +485,18 @@ void freq_update_core(void)
hang();
}
- /* Put EMIF clock domain back in hw auto mode */
- enable_clock_domain(&prcm->cm_memif_clkstctrl,
- CD_CLKCTRL_CLKTRCTRL_HW_AUTO);
- wait_for_clk_enable(&prcm->cm_memif_emif_1_clkctrl);
- wait_for_clk_enable(&prcm->cm_memif_emif_2_clkctrl);
+ /*
+ * Putting EMIF in HW_AUTO is seen to be causing issues with
+ * EMIF clocks and the master DLL. Put EMIF in SW_WKUP
+ * in OMAP5430 ES1.0 silicon
+ */
+ if (omap_rev != OMAP5430_ES1_0) {
+ /* Put EMIF clock domain back in hw auto mode */
+ enable_clock_domain(&prcm->cm_memif_clkstctrl,
+ CD_CLKCTRL_CLKTRCTRL_HW_AUTO);
+ wait_for_clk_enable(&prcm->cm_memif_emif_1_clkctrl);
+ wait_for_clk_enable(&prcm->cm_memif_emif_2_clkctrl);
+ }
}
void bypass_dpll(u32 *const base)
diff --git a/arch/arm/cpu/armv7/omap-common/emif-common.c
b/arch/arm/cpu/armv7/omap-common/emif-common.c
index 62678ff..db509c9 100644
--- a/arch/arm/cpu/armv7/omap-common/emif-common.c
+++ b/arch/arm/cpu/armv7/omap-common/emif-common.c
@@ -90,20 +90,33 @@ static void do_lpddr2_init(u32 base, u32 cs)
* tZQINIT = 1 us
* Enough loops assuming a maximum of 2GHz
*/
+
sdelay(2000);
- set_mr(base, cs, LPDDR2_MR1, MR1_BL_8_BT_SEQ_WRAP_EN_NWR_3);
+
+ if (omap_revision() >= OMAP5430_ES1_0)
+ set_mr(base, cs, LPDDR2_MR1, MR1_BL_8_BT_SEQ_WRAP_EN_NWR_8);
+ else
+ set_mr(base, cs, LPDDR2_MR1, MR1_BL_8_BT_SEQ_WRAP_EN_NWR_3);
+
set_mr(base, cs, LPDDR2_MR16, MR16_REF_FULL_ARRAY);
+
/*
* Enable refresh along with writing MR2
* Encoding of RL in MR2 is (RL - 2)
*/
mr_addr = LPDDR2_MR2 | EMIF_REG_REFRESH_EN_MASK;
set_mr(base, cs, mr_addr, RL_FINAL - 2);
+
+ if (omap_revision() >= OMAP5430_ES1_0)
+ set_mr(base, cs, LPDDR2_MR3, 0x1);
}
static void lpddr2_init(u32 base, const struct emif_regs *regs)
{
struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+ u32 *ext_phy_ctrl_base = 0;
+ u32 *emif_ext_phy_ctrl_base = 0;
+ u32 i = 0;
/* Not NVM */
clrbits_le32(&emif->emif_lpddr2_nvm_config, EMIF_REG_CS1NVMEN_MASK);
@@ -119,7 +132,31 @@ static void lpddr2_init(u32 base, const struct emif_regs
*regs)
* un-locked frequency & default RL
*/
writel(regs->sdram_config_init, &emif->emif_sdram_config);
- writel(regs->emif_ddr_phy_ctlr_1_init, &emif->emif_ddr_phy_ctrl_1);
+ writel(regs->emif_ddr_phy_ctlr_1, &emif->emif_ddr_phy_ctrl_1);
+
+ ext_phy_ctrl_base = (u32 *) &(regs->emif_ddr_ext_phy_ctrl_1);
+ emif_ext_phy_ctrl_base = (u32 *) &(emif->emif_ddr_ext_phy_ctrl_1);
+
+ if (omap_revision() >= OMAP5430_ES1_0) {
+ /* Configure external phy control timing registers */
+ for (i = 0; i < EMIF_EXT_PHY_CTRL_TIMING_REG; i++) {
+ writel(*ext_phy_ctrl_base, emif_ext_phy_ctrl_base++);
+ /* Update shadow registers */
+ writel(*ext_phy_ctrl_base++, emif_ext_phy_ctrl_base++);
+ }
+
+ /*
+ * external phy 6-24 registers do not change with
+ * ddr frequency
+ */
+ for (i = 0; i < EMIF_EXT_PHY_CTRL_CONST_REG; i++) {
+ writel(ext_phy_ctrl_const_base[i],
+ emif_ext_phy_ctrl_base++);
+ /* Update shadow registers */
+ writel(ext_phy_ctrl_const_base[i],
+ emif_ext_phy_ctrl_base++);
+ }
+ }
do_lpddr2_init(base, CS0);
if (regs->sdram_config & EMIF_REG_EBANK_MASK)
diff --git a/arch/arm/cpu/armv7/omap4/sdram_elpida.c
b/arch/arm/cpu/armv7/omap4/sdram_elpida.c
index a5ec7d3..b538960 100644
--- a/arch/arm/cpu/armv7/omap4/sdram_elpida.c
+++ b/arch/arm/cpu/armv7/omap4/sdram_elpida.c
@@ -89,6 +89,10 @@ const struct emif_regs emif_regs_elpida_400_mhz_2cs = {
.emif_ddr_phy_ctlr_1_init = 0x049ffff5,
.emif_ddr_phy_ctlr_1 = 0x049ff418
};
+
+/* Dummy registers for OMAP44xx */
+const u32 ext_phy_ctrl_const_base[EMIF_EXT_PHY_CTRL_CONST_REG];
+
const struct dmm_lisa_map_regs lisa_map_2G_x_1_x_2 = {
.dmm_lisa_map_0 = 0xFF020100,
.dmm_lisa_map_1 = 0,
diff --git a/arch/arm/cpu/armv7/omap5/sdram_elpida.c
b/arch/arm/cpu/armv7/omap5/sdram_elpida.c
index ad198e6..85805b8 100644
--- a/arch/arm/cpu/armv7/omap5/sdram_elpida.c
+++ b/arch/arm/cpu/armv7/omap5/sdram_elpida.c
@@ -48,31 +48,76 @@
*/
#ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
-
-const struct emif_regs emif_regs_elpida_532_mhz_1cs = {
- .sdram_config_init = 0x80801aB2,
- .sdram_config = 0x808022B2,
+const struct emif_regs emif_regs_elpida_532_mhz_2cs = {
+ .sdram_config_init = 0x80800EBA,
+ .sdram_config = 0x808022BA,
.ref_ctrl = 0x0000081A,
.sdram_tim1 = 0x772F6873,
- .sdram_tim2 = 0x304A129A,
- .sdram_tim3 = 0x02F7E45F,
+ .sdram_tim2 = 0x304a129a,
+ .sdram_tim3 = 0x02f7e45f,
+ .read_idle_ctrl = 0x00050000,
+ .zq_config = 0x000b3215,
+ .temp_alert_config = 0x08000a05,
+ .emif_ddr_phy_ctlr_1_init = 0x0E28420d,
+ .emif_ddr_phy_ctlr_1 = 0x0E28420d,
+ .emif_ddr_ext_phy_ctrl_1 = 0x04020080,
+ .emif_ddr_ext_phy_ctrl_2 = 0x28C518A3,
+ .emif_ddr_ext_phy_ctrl_3 = 0x518A3146,
+ .emif_ddr_ext_phy_ctrl_4 = 0x0014628C,
+ .emif_ddr_ext_phy_ctrl_5 = 0x04010040
+};
+
+const struct emif_regs emif_regs_elpida_266_mhz_2cs = {
+ .sdram_config_init = 0x80800EBA,
+ .sdram_config = 0x808022BA,
+ .ref_ctrl = 0x0000040D,
+ .sdram_tim1 = 0x2A86B419,
+ .sdram_tim2 = 0x1025094A,
+ .sdram_tim3 = 0x026BA22F,
.read_idle_ctrl = 0x00050000,
- .zq_config = 0x000B3215,
- .temp_alert_config = 0x08000A05,
- .emif_ddr_phy_ctlr_1_init = 0x0E38200D,
- .emif_ddr_phy_ctlr_1 = 0x0E38200D
+ .zq_config = 0x000b3215,
+ .temp_alert_config = 0x08000a05,
+ .emif_ddr_phy_ctlr_1_init = 0x0E28420d,
+ .emif_ddr_phy_ctlr_1 = 0x0E28420d,
+ .emif_ddr_ext_phy_ctrl_1 = 0x04020080,
+ .emif_ddr_ext_phy_ctrl_2 = 0x0A414829,
+ .emif_ddr_ext_phy_ctrl_3 = 0x14829052,
+ .emif_ddr_ext_phy_ctrl_4 = 0x000520A4,
+ .emif_ddr_ext_phy_ctrl_5 = 0x04010040
};
-const struct dmm_lisa_map_regs lisa_map_4G_x_1_x_2 = {
- .dmm_lisa_map_0 = 0xFF020100,
+const struct dmm_lisa_map_regs lisa_map_4G_x_2_x_2 = {
+ .dmm_lisa_map_0 = 0x0,
.dmm_lisa_map_1 = 0,
.dmm_lisa_map_2 = 0,
- .dmm_lisa_map_3 = 0x80640300
+ .dmm_lisa_map_3 = 0x80740300
+};
+
+const u32 ext_phy_ctrl_const_base[EMIF_EXT_PHY_CTRL_CONST_REG] = {
+ 0x01004010,
+ 0x00001004,
+ 0x04010040,
+ 0x01004010,
+ 0x00001004,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x80080080,
+ 0x00800800,
+ 0x08102040,
+ 0x00000001,
+ 0x540A8150,
+ 0xA81502a0,
+ 0x002A0540,
+ 0x00000000,
+ 0x00000000,
+ 0x00000000,
+ 0x00000077
};
static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs)
{
- *regs = &emif_regs_elpida_532_mhz_1cs;
+ *regs = &emif_regs_elpida_532_mhz_2cs;
}
void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
__attribute__((weak, alias("emif_get_reg_dump_sdp")));
@@ -80,7 +125,7 @@ void emif_get_reg_dump(u32 emif_nr, const struct emif_regs
**regs)
static void emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs
**dmm_lisa_regs)
{
- *dmm_lisa_regs = &lisa_map_4G_x_1_x_2;
+ *dmm_lisa_regs = &lisa_map_4G_x_2_x_2;
}
void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs)
@@ -101,9 +146,7 @@ static void emif_get_device_details_sdp(u32 emif_nr,
{
/* EMIF1 & EMIF2 have identical configuration */
*cs0_device_details = elpida_4G_S4_details;
-
- /* Nothing is conected on cs1 */
- cs1_device_details = NULL;
+ *cs1_device_details = elpida_4G_S4_details;
}
void emif_get_device_details(u32 emif_nr,
@@ -167,7 +210,7 @@ void emif_get_device_timings_sdp(u32 emif_nr,
{
/* Identical devices on EMIF1 & EMIF2 */
*cs0_device_timings = &elpida_4G_S4_timings;
- *cs1_device_timings = NULL;
+ *cs1_device_timings = &elpida_4G_S4_timings;
}
void emif_get_device_timings(u32 emif_nr,
diff --git a/arch/arm/include/asm/emif.h b/arch/arm/include/asm/emif.h
index e5c7d2c..aab15d8 100644
--- a/arch/arm/include/asm/emif.h
+++ b/arch/arm/include/asm/emif.h
@@ -530,6 +530,8 @@
(DMM_SDRC_INTL_NONE << EMIF_SDRC_INTL_SHIFT)|\
(0xFF << EMIF_SYS_ADDR_SHIFT))
+#define EMIF_EXT_PHY_CTRL_TIMING_REG 0x5
+#define EMIF_EXT_PHY_CTRL_CONST_REG 0x13
/* Reg mapping structure */
struct emif_reg_struct {
@@ -580,10 +582,64 @@ struct emif_reg_struct {
u32 emif_zq_config;
u32 emif_temp_alert_config;
u32 emif_l3_err_log;
- u32 padding6[4];
+ u32 emif_rd_wr_lvl_rmp_win;
+ u32 emif_rd_wr_lvl_rmp_ctl;
+ u32 emif_rd_wr_lvl_ctl;
+ u32 padding6[1];
u32 emif_ddr_phy_ctrl_1;
u32 emif_ddr_phy_ctrl_1_shdw;
u32 emif_ddr_phy_ctrl_2;
+ u32 padding7[12];
+ u32 emif_rd_wr_exec_thresh;
+ u32 padding8[55];
+ u32 emif_ddr_ext_phy_ctrl_1;
+ u32 emif_ddr_ext_phy_ctrl_1_shdw;
+ u32 emif_ddr_ext_phy_ctrl_2;
+ u32 emif_ddr_ext_phy_ctrl_2_shdw;
+ u32 emif_ddr_ext_phy_ctrl_3;
+ u32 emif_ddr_ext_phy_ctrl_3_shdw;
+ u32 emif_ddr_ext_phy_ctrl_4;
+ u32 emif_ddr_ext_phy_ctrl_4_shdw;
+ u32 emif_ddr_ext_phy_ctrl_5;
+ u32 emif_ddr_ext_phy_ctrl_5_shdw;
+ u32 emif_ddr_ext_phy_ctrl_6;
+ u32 emif_ddr_ext_phy_ctrl_6_shdw;
+ u32 emif_ddr_ext_phy_ctrl_7;
+ u32 emif_ddr_ext_phy_ctrl_7_shdw;
+ u32 emif_ddr_ext_phy_ctrl_8;
+ u32 emif_ddr_ext_phy_ctrl_8_shdw;
+ u32 emif_ddr_ext_phy_ctrl_9;
+ u32 emif_ddr_ext_phy_ctrl_9_shdw;
+ u32 emif_ddr_ext_phy_ctrl_10;
+ u32 emif_ddr_ext_phy_ctrl_10_shdw;
+ u32 emif_ddr_ext_phy_ctrl_11;
+ u32 emif_ddr_ext_phy_ctrl_11_shdw;
+ u32 emif_ddr_ext_phy_ctrl_12;
+ u32 emif_ddr_ext_phy_ctrl_12_shdw;
+ u32 emif_ddr_ext_phy_ctrl_13;
+ u32 emif_ddr_ext_phy_ctrl_13_shdw;
+ u32 emif_ddr_ext_phy_ctrl_14;
+ u32 emif_ddr_ext_phy_ctrl_14_shdw;
+ u32 emif_ddr_ext_phy_ctrl_15;
+ u32 emif_ddr_ext_phy_ctrl_15_shdw;
+ u32 emif_ddr_ext_phy_ctrl_16;
+ u32 emif_ddr_ext_phy_ctrl_16_shdw;
+ u32 emif_ddr_ext_phy_ctrl_17;
+ u32 emif_ddr_ext_phy_ctrl_17_shdw;
+ u32 emif_ddr_ext_phy_ctrl_18;
+ u32 emif_ddr_ext_phy_ctrl_18_shdw;
+ u32 emif_ddr_ext_phy_ctrl_19;
+ u32 emif_ddr_ext_phy_ctrl_19_shdw;
+ u32 emif_ddr_ext_phy_ctrl_20;
+ u32 emif_ddr_ext_phy_ctrl_20_shdw;
+ u32 emif_ddr_ext_phy_ctrl_21;
+ u32 emif_ddr_ext_phy_ctrl_21_shdw;
+ u32 emif_ddr_ext_phy_ctrl_22;
+ u32 emif_ddr_ext_phy_ctrl_22_shdw;
+ u32 emif_ddr_ext_phy_ctrl_23;
+ u32 emif_ddr_ext_phy_ctrl_23_shdw;
+ u32 emif_ddr_ext_phy_ctrl_24;
+ u32 emif_ddr_ext_phy_ctrl_24_shdw;
};
struct dmm_lisa_map_regs {
@@ -593,6 +649,8 @@ struct dmm_lisa_map_regs {
u32 dmm_lisa_map_3;
};
+extern const u32 ext_phy_ctrl_const_base[EMIF_EXT_PHY_CTRL_CONST_REG];
+
#define CS0 0
#define CS1 1
/* The maximum frequency at which the LPDDR2 interface can operate in Hz*/
@@ -748,7 +806,11 @@ 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
@@ -776,7 +838,7 @@ struct dmm_lisa_map_regs {
/* EMIF_L3_CONFIG register value */
#define EMIF_L3_CONFIG_VAL_SYS_10_LL_0 0x0A0000FF
#define EMIF_L3_CONFIG_VAL_SYS_10_MPU_3_LL_0 0x0A300000
-#define EMIF_L3_CONFIG_VAL_SYS_10_MPU_5_LL_0 0x0A300000
+#define EMIF_L3_CONFIG_VAL_SYS_10_MPU_5_LL_0 0x0A500000
/*
* Value of bits 12:31 of DDR_PHY_CTRL_1 register:
@@ -798,6 +860,7 @@ struct dmm_lisa_map_regs {
* : So nWR is don't care
*/
#define MR1_BL_8_BT_SEQ_WRAP_EN_NWR_3 0x23
+#define MR1_BL_8_BT_SEQ_WRAP_EN_NWR_8 0xc3
/* MR2 */
#define MR2_RL3_WL1 1
@@ -1005,6 +1068,11 @@ struct emif_regs {
u32 temp_alert_config;
u32 emif_ddr_phy_ctlr_1_init;
u32 emif_ddr_phy_ctlr_1;
+ u32 emif_ddr_ext_phy_ctrl_1;
+ u32 emif_ddr_ext_phy_ctrl_2;
+ u32 emif_ddr_ext_phy_ctrl_3;
+ u32 emif_ddr_ext_phy_ctrl_4;
+ u32 emif_ddr_ext_phy_ctrl_5;
};
/* assert macros */
--
1.7.1
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