diff --git a/arch/arm/cpu/armv7/omap-common/emif-common.c b/arch/arm/cpu/armv7/omap-common/emif-common.c
index 94c8bed24ea1d7ba1746dbb4ed2811a099b57bbf..88253cf8ce3e5bf1128d70f08d22bacdfddb09b4 100644 (file)
*/
#include <common.h>
-#include <asm/arch/emif.h>
+#include <asm/emif.h>
#include <asm/arch/clocks.h>
#include <asm/arch/sys_proto.h>
#include <asm/omap_common.h>
#include <asm/utils.h>
+#include <linux/compiler.h>
-static inline u32 emif_num(u32 base)
+static int emif1_enabled = -1, emif2_enabled = -1;
+
+void set_lpmode_selfrefresh(u32 base)
+{
+ struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+ u32 reg;
+
+ reg = readl(&emif->emif_pwr_mgmt_ctrl);
+ reg &= ~EMIF_REG_LP_MODE_MASK;
+ reg |= LP_MODE_SELF_REFRESH << EMIF_REG_LP_MODE_SHIFT;
+ reg &= ~EMIF_REG_SR_TIM_MASK;
+ writel(reg, &emif->emif_pwr_mgmt_ctrl);
+
+ /* dummy read for the new SR_TIM to be loaded */
+ readl(&emif->emif_pwr_mgmt_ctrl);
+}
+
+void force_emif_self_refresh()
{
- if (base == OMAP44XX_EMIF1)
+ set_lpmode_selfrefresh(EMIF1_BASE);
+ set_lpmode_selfrefresh(EMIF2_BASE);
+}
+
+inline u32 emif_num(u32 base)
+{
+ if (base == EMIF1_BASE)
return 1;
- else if (base == OMAP44XX_EMIF2)
+ else if (base == EMIF2_BASE)
return 2;
else
return 0;
}
+
static inline u32 get_mr(u32 base, u32 cs, u32 mr_addr)
{
u32 mr;
struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
- mr_addr |= cs << OMAP44XX_REG_CS_SHIFT;
+ mr_addr |= cs << EMIF_REG_CS_SHIFT;
writel(mr_addr, &emif->emif_lpddr2_mode_reg_cfg);
if (omap_revision() == OMAP4430_ES2_0)
mr = readl(&emif->emif_lpddr2_mode_reg_data_es2);
mr = readl(&emif->emif_lpddr2_mode_reg_data);
debug("get_mr: EMIF%d cs %d mr %08x val 0x%x\n", emif_num(base),
cs, mr_addr, mr);
- return mr;
+ if (((mr & 0x0000ff00) >> 8) == (mr & 0xff) &&
+ ((mr & 0x00ff0000) >> 16) == (mr & 0xff) &&
+ ((mr & 0xff000000) >> 24) == (mr & 0xff))
+ return mr & 0xff;
+ else
+ return mr;
}
static inline void set_mr(u32 base, u32 cs, u32 mr_addr, u32 mr_val)
{
struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
- mr_addr |= cs << OMAP44XX_REG_CS_SHIFT;
+ mr_addr |= cs << EMIF_REG_CS_SHIFT;
writel(mr_addr, &emif->emif_lpddr2_mode_reg_cfg);
writel(mr_val, &emif->emif_lpddr2_mode_reg_data);
}
u32 iodft;
iodft = readl(&emif->emif_iodft_tlgc);
- iodft |= OMAP44XX_REG_RESET_PHY_MASK;
+ iodft |= EMIF_REG_RESET_PHY_MASK;
writel(iodft, &emif->emif_iodft_tlgc);
}
* 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 | OMAP44XX_REG_REFRESH_EN_MASK;
+ 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;
/* Not NVM */
- clrbits_le32(&emif->emif_lpddr2_nvm_config, OMAP44XX_REG_CS1NVMEN_MASK);
+ clrbits_le32(&emif->emif_lpddr2_nvm_config, EMIF_REG_CS1NVMEN_MASK);
/*
* Keep REG_INITREF_DIS = 1 to prevent re-initialization of SDRAM
* when EMIF_SDRAM_CONFIG register is written
*/
- setbits_le32(&emif->emif_sdram_ref_ctrl, OMAP44XX_REG_INITREF_DIS_MASK);
+ setbits_le32(&emif->emif_sdram_ref_ctrl, EMIF_REG_INITREF_DIS_MASK);
/*
* Set the SDRAM_CONFIG and PHY_CTRL for the
* 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);
+
+ do_ext_phy_settings(base, regs);
do_lpddr2_init(base, CS0);
- if (regs->sdram_config & OMAP44XX_REG_EBANK_MASK)
+ if (regs->sdram_config & EMIF_REG_EBANK_MASK)
do_lpddr2_init(base, CS1);
writel(regs->sdram_config, &emif->emif_sdram_config);
writel(regs->emif_ddr_phy_ctlr_1, &emif->emif_ddr_phy_ctrl_1);
/* Enable refresh now */
- clrbits_le32(&emif->emif_sdram_ref_ctrl, OMAP44XX_REG_INITREF_DIS_MASK);
+ clrbits_le32(&emif->emif_sdram_ref_ctrl, EMIF_REG_INITREF_DIS_MASK);
+
+ }
+__weak void do_ext_phy_settings(u32 base, const struct emif_regs *regs)
+{
}
-static void emif_update_timings(u32 base, const struct emif_regs *regs)
+void emif_update_timings(u32 base, const struct emif_regs *regs)
{
struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
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() >= OMAP4460_ES1_0) {
+ if (omap_revision() >= OMAP5430_ES1_0) {
+ writel(EMIF_L3_CONFIG_VAL_SYS_10_MPU_5_LL_0,
+ &emif->emif_l3_config);
+ } else if (omap_revision() >= OMAP4460_ES1_0) {
writel(EMIF_L3_CONFIG_VAL_SYS_10_MPU_3_LL_0,
&emif->emif_l3_config);
} else {
}
}
+static void ddr3_leveling(u32 base, const struct emif_regs *regs)
+{
+ struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+
+ /* keep sdram in self-refresh */
+ writel(((LP_MODE_SELF_REFRESH << EMIF_REG_LP_MODE_SHIFT)
+ & EMIF_REG_LP_MODE_MASK), &emif->emif_pwr_mgmt_ctrl);
+ __udelay(130);
+
+ /*
+ * 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.
+ */
+ 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);
+
+ /* 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);
+
+ /* 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);
+}
+
+static void ddr3_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;
+
+ /*
+ * Set SDRAM_CONFIG and PHY control registers to locked frequency
+ * and RL =7. As the default values of the Mode Registers are not
+ * defined, contents of mode Registers must be fully initialized.
+ * H/W takes care of this initialization
+ */
+ 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 */
+ writel(regs->sdram_tim1, &emif->emif_sdram_tim_1);
+ writel(regs->sdram_tim2, &emif->emif_sdram_tim_2);
+ writel(regs->sdram_tim3, &emif->emif_sdram_tim_3);
+
+ writel(regs->ref_ctrl, &emif->emif_sdram_ref_ctrl);
+ writel(regs->read_idle_ctrl, &emif->emif_read_idlectrl);
+
+ 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);
+
+ /* 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(ddr3_ext_phy_ctrl_const_base[i],
+ emif_ext_phy_ctrl_base++);
+ /* Update shadow registers */
+ writel(ddr3_ext_phy_ctrl_const_base[i],
+ emif_ext_phy_ctrl_base++);
+ }
+
+ /* enable leveling */
+ writel(regs->emif_rd_wr_lvl_rmp_ctl, &emif->emif_rd_wr_lvl_rmp_ctl);
+
+ ddr3_leveling(base, regs);
+}
+
#ifndef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
#define print_timing_reg(reg) debug(#reg" - 0x%08x\n", (reg))
-static u32 *const T_num = (u32 *)OMAP4_SRAM_SCRATCH_EMIF_T_NUM;
-static u32 *const T_den = (u32 *)OMAP4_SRAM_SCRATCH_EMIF_T_DEN;
-static u32 *const emif_sizes = (u32 *)OMAP4_SRAM_SCRATCH_EMIF_SIZE;
-
/*
* Organization and refresh requirements for LPDDR2 devices of different
* types and densities. Derived from JESD209-2 section 2.4
@@ -311,24 +451,24 @@ static u32 get_sdram_config_reg(const struct lpddr2_device_details *cs0_device,
{
u32 config_reg = 0;
- config_reg |= (cs0_device->type + 4) << OMAP44XX_REG_SDRAM_TYPE_SHIFT;
+ config_reg |= (cs0_device->type + 4) << EMIF_REG_SDRAM_TYPE_SHIFT;
config_reg |= EMIF_INTERLEAVING_POLICY_MAX_INTERLEAVING <<
- OMAP44XX_REG_IBANK_POS_SHIFT;
+ EMIF_REG_IBANK_POS_SHIFT;
- config_reg |= cs0_device->io_width << OMAP44XX_REG_NARROW_MODE_SHIFT;
+ config_reg |= cs0_device->io_width << EMIF_REG_NARROW_MODE_SHIFT;
- config_reg |= RL << OMAP44XX_REG_CL_SHIFT;
+ config_reg |= RL << EMIF_REG_CL_SHIFT;
config_reg |= addressing->row_sz[cs0_device->io_width] <<
- OMAP44XX_REG_ROWSIZE_SHIFT;
+ EMIF_REG_ROWSIZE_SHIFT;
- config_reg |= addressing->num_banks << OMAP44XX_REG_IBANK_SHIFT;
+ config_reg |= addressing->num_banks << EMIF_REG_IBANK_SHIFT;
config_reg |= (cs1_device ? EBANK_CS1_EN : EBANK_CS1_DIS) <<
- OMAP44XX_REG_EBANK_SHIFT;
+ EMIF_REG_EBANK_SHIFT;
config_reg |= addressing->col_sz[cs0_device->io_width] <<
- OMAP44XX_REG_PAGESIZE_SHIFT;
+ EMIF_REG_PAGESIZE_SHIFT;
return config_reg;
}
* division by 10000 to account for khz and x10 in t_REFI_us_x10
*/
val = addressing->t_REFI_us_x10 * freq_khz / 10000;
- ref_ctrl |= val << OMAP44XX_REG_REFRESH_RATE_SHIFT;
+ ref_ctrl |= val << EMIF_REG_REFRESH_RATE_SHIFT;
return ref_ctrl;
}
{
u32 tim1 = 0, val = 0;
val = max(min_tck->tWTR, ns_x2_2_cycles(timings->tWTRx2)) - 1;
- tim1 |= val << OMAP44XX_REG_T_WTR_SHIFT;
+ tim1 |= val << EMIF_REG_T_WTR_SHIFT;
if (addressing->num_banks == BANKS8)
val = (timings->tFAW * (*T_den) + 4 * (*T_num) - 1) /
else
val = max(min_tck->tRRD, ns_2_cycles(timings->tRRD)) - 1;
- tim1 |= val << OMAP44XX_REG_T_RRD_SHIFT;
+ tim1 |= val << EMIF_REG_T_RRD_SHIFT;
val = ns_2_cycles(timings->tRASmin + timings->tRPab) - 1;
- tim1 |= val << OMAP44XX_REG_T_RC_SHIFT;
+ tim1 |= val << EMIF_REG_T_RC_SHIFT;
val = max(min_tck->tRAS_MIN, ns_2_cycles(timings->tRASmin)) - 1;
- tim1 |= val << OMAP44XX_REG_T_RAS_SHIFT;
+ tim1 |= val << EMIF_REG_T_RAS_SHIFT;
val = max(min_tck->tWR, ns_2_cycles(timings->tWR)) - 1;
- tim1 |= val << OMAP44XX_REG_T_WR_SHIFT;
+ tim1 |= val << EMIF_REG_T_WR_SHIFT;
val = max(min_tck->tRCD, ns_2_cycles(timings->tRCD)) - 1;
- tim1 |= val << OMAP44XX_REG_T_RCD_SHIFT;
+ tim1 |= val << EMIF_REG_T_RCD_SHIFT;
val = max(min_tck->tRP_AB, ns_2_cycles(timings->tRPab)) - 1;
- tim1 |= val << OMAP44XX_REG_T_RP_SHIFT;
+ tim1 |= val << EMIF_REG_T_RP_SHIFT;
return tim1;
}
{
u32 tim2 = 0, val = 0;
val = max(min_tck->tCKE, timings->tCKE) - 1;
- tim2 |= val << OMAP44XX_REG_T_CKE_SHIFT;
+ tim2 |= val << EMIF_REG_T_CKE_SHIFT;
val = max(min_tck->tRTP, ns_x2_2_cycles(timings->tRTPx2)) - 1;
- tim2 |= val << OMAP44XX_REG_T_RTP_SHIFT;
+ tim2 |= val << EMIF_REG_T_RTP_SHIFT;
/*
* tXSRD = tRFCab + 10 ns. XSRD and XSNR should have the
* same value
*/
val = ns_2_cycles(timings->tXSR) - 1;
- tim2 |= val << OMAP44XX_REG_T_XSRD_SHIFT;
- tim2 |= val << OMAP44XX_REG_T_XSNR_SHIFT;
+ tim2 |= val << EMIF_REG_T_XSRD_SHIFT;
+ tim2 |= val << EMIF_REG_T_XSNR_SHIFT;
val = max(min_tck->tXP, ns_x2_2_cycles(timings->tXPx2)) - 1;
- tim2 |= val << OMAP44XX_REG_T_XP_SHIFT;
+ tim2 |= val << EMIF_REG_T_XP_SHIFT;
return tim2;
}
{
u32 tim3 = 0, val = 0;
val = min(timings->tRASmax * 10 / addressing->t_REFI_us_x10 - 1, 0xF);
- tim3 |= val << OMAP44XX_REG_T_RAS_MAX_SHIFT;
+ tim3 |= val << EMIF_REG_T_RAS_MAX_SHIFT;
val = ns_2_cycles(timings->tRFCab) - 1;
- tim3 |= val << OMAP44XX_REG_T_RFC_SHIFT;
+ tim3 |= val << EMIF_REG_T_RFC_SHIFT;
val = ns_x2_2_cycles(timings->tDQSCKMAXx2) - 1;
- tim3 |= val << OMAP44XX_REG_T_TDQSCKMAX_SHIFT;
+ tim3 |= val << EMIF_REG_T_TDQSCKMAX_SHIFT;
val = ns_2_cycles(timings->tZQCS) - 1;
- tim3 |= val << OMAP44XX_REG_ZQ_ZQCS_SHIFT;
+ tim3 |= val << EMIF_REG_ZQ_ZQCS_SHIFT;
val = max(min_tck->tCKESR, ns_2_cycles(timings->tCKESR)) - 1;
- tim3 |= val << OMAP44XX_REG_T_CKESR_SHIFT;
+ tim3 |= val << EMIF_REG_T_CKESR_SHIFT;
return tim3;
}
val =
EMIF_ZQCS_INTERVAL_NORMAL_IN_US * 10 /
addressing->t_REFI_us_x10;
- zq |= val << OMAP44XX_REG_ZQ_REFINTERVAL_SHIFT;
+ zq |= val << EMIF_REG_ZQ_REFINTERVAL_SHIFT;
- zq |= (REG_ZQ_ZQCL_MULT - 1) << OMAP44XX_REG_ZQ_ZQCL_MULT_SHIFT;
+ zq |= (REG_ZQ_ZQCL_MULT - 1) << EMIF_REG_ZQ_ZQCL_MULT_SHIFT;
- zq |= (REG_ZQ_ZQINIT_MULT - 1) << OMAP44XX_REG_ZQ_ZQINIT_MULT_SHIFT;
+ zq |= (REG_ZQ_ZQINIT_MULT - 1) << EMIF_REG_ZQ_ZQINIT_MULT_SHIFT;
- zq |= REG_ZQ_SFEXITEN_ENABLE << OMAP44XX_REG_ZQ_SFEXITEN_SHIFT;
+ zq |= REG_ZQ_SFEXITEN_ENABLE << EMIF_REG_ZQ_SFEXITEN_SHIFT;
/*
* Assuming that two chipselects have a single calibration resistor
* that none of the boards today have calibration resistors per CS,
* it would be an unnecessary overhead.
*/
- zq |= REG_ZQ_DUALCALEN_DISABLE << OMAP44XX_REG_ZQ_DUALCALEN_SHIFT;
+ zq |= REG_ZQ_DUALCALEN_DISABLE << EMIF_REG_ZQ_DUALCALEN_SHIFT;
- zq |= REG_ZQ_CS0EN_ENABLE << OMAP44XX_REG_ZQ_CS0EN_SHIFT;
+ zq |= REG_ZQ_CS0EN_ENABLE << EMIF_REG_ZQ_CS0EN_SHIFT;
- zq |= (cs1_device ? 1 : 0) << OMAP44XX_REG_ZQ_CS1EN_SHIFT;
+ zq |= (cs1_device ? 1 : 0) << EMIF_REG_ZQ_CS1EN_SHIFT;
return zq;
}
@@ -476,17 +616,17 @@ static u32 get_temp_alert_config(const struct lpddr2_device_details *cs1_device,
TEMP_ALERT_POLL_INTERVAL_MS * 10000 / addressing->t_REFI_us_x10;
if (is_derated)
interval *= 4;
- alert |= interval << OMAP44XX_REG_TA_REFINTERVAL_SHIFT;
+ alert |= interval << EMIF_REG_TA_REFINTERVAL_SHIFT;
- alert |= TEMP_ALERT_CONFIG_DEVCT_1 << OMAP44XX_REG_TA_DEVCNT_SHIFT;
+ alert |= TEMP_ALERT_CONFIG_DEVCT_1 << EMIF_REG_TA_DEVCNT_SHIFT;
- alert |= TEMP_ALERT_CONFIG_DEVWDT_32 << OMAP44XX_REG_TA_DEVWDT_SHIFT;
+ alert |= TEMP_ALERT_CONFIG_DEVWDT_32 << EMIF_REG_TA_DEVWDT_SHIFT;
- alert |= 1 << OMAP44XX_REG_TA_SFEXITEN_SHIFT;
+ alert |= 1 << EMIF_REG_TA_SFEXITEN_SHIFT;
- alert |= 1 << OMAP44XX_REG_TA_CS0EN_SHIFT;
+ alert |= 1 << EMIF_REG_TA_CS0EN_SHIFT;
- alert |= (cs1_device ? 1 : 0) << OMAP44XX_REG_TA_CS1EN_SHIFT;
+ alert |= (cs1_device ? 1 : 0) << EMIF_REG_TA_CS1EN_SHIFT;
return alert;
}
else
/*Maximum value in normal conditions - suggested by hw team */
val = 0x1FF;
- idle |= val << OMAP44XX_REG_READ_IDLE_INTERVAL_SHIFT;
+ idle |= val << EMIF_REG_READ_IDLE_INTERVAL_SHIFT;
- idle |= EMIF_REG_READ_IDLE_LEN_VAL << OMAP44XX_REG_READ_IDLE_LEN_SHIFT;
+ idle |= EMIF_REG_READ_IDLE_LEN_VAL << EMIF_REG_READ_IDLE_LEN_SHIFT;
return idle;
}
{
u32 phy = 0, val = 0;
- phy |= (RL + 2) << OMAP44XX_REG_READ_LATENCY_SHIFT;
+ phy |= (RL + 2) << EMIF_REG_READ_LATENCY_SHIFT;
if (freq <= 100000000)
val = EMIF_DLL_SLAVE_DLY_CTRL_100_MHZ_AND_LESS;
val = EMIF_DLL_SLAVE_DLY_CTRL_200_MHZ;
else
val = EMIF_DLL_SLAVE_DLY_CTRL_400_MHZ;
- phy |= val << OMAP44XX_REG_DLL_SLAVE_DLY_CTRL_SHIFT;
+ phy |= val << EMIF_REG_DLL_SLAVE_DLY_CTRL_SHIFT;
/* Other fields are constant magic values. Hardcode them together */
phy |= EMIF_DDR_PHY_CTRL_1_BASE_VAL <<
- OMAP44XX_EMIF_DDR_PHY_CTRL_1_BASE_VAL_SHIFT;
+ EMIF_EMIF_DDR_PHY_CTRL_1_BASE_VAL_SHIFT;
return phy;
}
}
#endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */
-#ifdef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS
-/* Base AC Timing values specified by JESD209-2 for 400MHz operation */
-static const struct lpddr2_ac_timings timings_jedec_400_mhz = {
- .max_freq = 400000000,
- .RL = 6,
- .tRPab = 21,
- .tRCD = 18,
- .tWR = 15,
- .tRASmin = 42,
- .tRRD = 10,
- .tWTRx2 = 15,
- .tXSR = 140,
- .tXPx2 = 15,
- .tRFCab = 130,
- .tRTPx2 = 15,
- .tCKE = 3,
- .tCKESR = 15,
- .tZQCS = 90,
- .tZQCL = 360,
- .tZQINIT = 1000,
- .tDQSCKMAXx2 = 11,
- .tRASmax = 70,
- .tFAW = 50
-};
-
-/* Base AC Timing values specified by JESD209-2 for 333 MHz operation */
-static const struct lpddr2_ac_timings timings_jedec_333_mhz = {
- .max_freq = 333000000,
- .RL = 5,
- .tRPab = 21,
- .tRCD = 18,
- .tWR = 15,
- .tRASmin = 42,
- .tRRD = 10,
- .tWTRx2 = 15,
- .tXSR = 140,
- .tXPx2 = 15,
- .tRFCab = 130,
- .tRTPx2 = 15,
- .tCKE = 3,
- .tCKESR = 15,
- .tZQCS = 90,
- .tZQCL = 360,
- .tZQINIT = 1000,
- .tDQSCKMAXx2 = 11,
- .tRASmax = 70,
- .tFAW = 50
-};
-
-/* Base AC Timing values specified by JESD209-2 for 200 MHz operation */
-static const struct lpddr2_ac_timings timings_jedec_200_mhz = {
- .max_freq = 200000000,
- .RL = 3,
- .tRPab = 21,
- .tRCD = 18,
- .tWR = 15,
- .tRASmin = 42,
- .tRRD = 10,
- .tWTRx2 = 20,
- .tXSR = 140,
- .tXPx2 = 15,
- .tRFCab = 130,
- .tRTPx2 = 15,
- .tCKE = 3,
- .tCKESR = 15,
- .tZQCS = 90,
- .tZQCL = 360,
- .tZQINIT = 1000,
- .tDQSCKMAXx2 = 11,
- .tRASmax = 70,
- .tFAW = 50
-};
-
-/*
- * Min tCK values specified by JESD209-2
- * Min tCK specifies the minimum duration of some AC timing parameters in terms
- * of the number of cycles. If the calculated number of cycles based on the
- * absolute time value is less than the min tCK value, min tCK value should
- * be used instead. This typically happens at low frequencies.
- */
-static const struct lpddr2_min_tck min_tck_jedec = {
- .tRL = 3,
- .tRP_AB = 3,
- .tRCD = 3,
- .tWR = 3,
- .tRAS_MIN = 3,
- .tRRD = 2,
- .tWTR = 2,
- .tXP = 2,
- .tRTP = 2,
- .tCKE = 3,
- .tCKESR = 3,
- .tFAW = 8
-};
-
-static const struct lpddr2_ac_timings const*
- jedec_ac_timings[MAX_NUM_SPEEDBINS] = {
- &timings_jedec_200_mhz,
- &timings_jedec_333_mhz,
- &timings_jedec_400_mhz
-};
-
-static const struct lpddr2_device_timings jedec_default_timings = {
- .ac_timings = jedec_ac_timings,
- .min_tck = &min_tck_jedec
-};
-
-void emif_get_device_timings(u32 emif_nr,
- const struct lpddr2_device_timings **cs0_device_timings,
- const struct lpddr2_device_timings **cs1_device_timings)
-{
- /* Assume Identical devices on EMIF1 & EMIF2 */
- *cs0_device_timings = &jedec_default_timings;
- *cs1_device_timings = &jedec_default_timings;
-}
-#endif /* CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS */
-
#ifdef CONFIG_SYS_AUTOMATIC_SDRAM_DETECTION
const char *get_lpddr2_type(u8 type_id)
{
}
mr = get_mr(base, cs, LPDDR2_MR5);
- if (mr >= 0xFF) {
+ if (mr > 0xFF) {
/* Mode register value bigger than 8 bit */
return 0;
}
struct lpddr2_device_details *lpddr2_dev_details)
{
u32 phy;
- u32 base = (emif_nr == 1) ? OMAP44XX_EMIF1 : OMAP44XX_EMIF2;
+ u32 base = (emif_nr == 1) ? EMIF1_BASE : EMIF2_BASE;
+
struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
if (!lpddr2_dev_details)
return NULL;
/* Do the minimum init for mode register accesses */
- if (!running_from_sdram()) {
+ if (!(running_from_sdram() || warm_reset())) {
phy = get_ddr_phy_ctrl_1(get_sys_clk_freq() / 2, RL_BOOT);
writel(phy, &emif->emif_ddr_phy_ctrl_1);
}
debug(">>do_sdram_init() %x\n", base);
in_sdram = running_from_sdram();
- emif_nr = (base == OMAP44XX_EMIF1) ? 1 : 2;
+ emif_nr = (base == EMIF1_BASE) ? 1 : 2;
#ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
emif_get_reg_dump(emif_nr, ®s);
*/
struct lpddr2_device_details cs0_dev_details, cs1_dev_details;
emif_reset_phy(base);
- dev_details.cs0_device_details = emif_get_device_details(base, CS0,
+ dev_details.cs0_device_details = emif_get_device_details(emif_nr, CS0,
&cs0_dev_details);
- dev_details.cs1_device_details = emif_get_device_details(base, CS1,
+ dev_details.cs1_device_details = emif_get_device_details(emif_nr, CS1,
&cs1_dev_details);
emif_reset_phy(base);
&dev_details.cs1_device_timings);
/* Calculate the register values */
- emif_calculate_regs(&dev_details, omap4_ddr_clk(), &calculated_regs);
+ emif_calculate_regs(&dev_details, omap_ddr_clk(), &calculated_regs);
regs = &calculated_regs;
#endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */
* Changing the timing registers in EMIF can happen(going from one
* OPP to another)
*/
- if (!in_sdram)
- lpddr2_init(base, regs);
+ if (!(in_sdram || warm_reset())) {
+ if (omap_revision() != OMAP5432_ES1_0)
+ lpddr2_init(base, regs);
+ else
+ ddr3_init(base, regs);
+ }
/* Write to the shadow registers */
emif_update_timings(base, regs);
debug("<<do_sdram_init() %x\n", base);
}
-static void emif_post_init_config(u32 base)
+void emif_post_init_config(u32 base)
{
struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
- u32 omap4_rev = omap_revision();
+ u32 omap_rev = omap_revision();
+
+ if (omap_rev == OMAP5430_ES1_0)
+ return;
/* reset phy on ES2.0 */
- if (omap4_rev == OMAP4430_ES2_0)
+ if (omap_rev == OMAP4430_ES2_0)
emif_reset_phy(base);
/* Put EMIF back in smart idle on ES1.0 */
- if (omap4_rev == OMAP4430_ES1_0)
+ if (omap_rev == OMAP4430_ES1_0)
writel(0x80000000, &emif->emif_pwr_mgmt_ctrl);
}
-static void dmm_init(u32 base)
+void dmm_init(u32 base)
{
const struct dmm_lisa_map_regs *lisa_map_regs;
+ u32 i, section, valid;
#ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
emif_get_dmm_regs(&lisa_map_regs);
if (emif1_size && emif2_size) {
mapped_size = min(emif1_size, emif2_size);
section_map = DMM_LISA_MAP_INTERLEAVED_BASE_VAL;
- section_map |= 0 << OMAP44XX_SDRC_ADDR_SHIFT;
+ section_map |= 0 << EMIF_SDRC_ADDR_SHIFT;
/* only MSB */
section_map |= (sys_addr >> 24) <<
- OMAP44XX_SYS_ADDR_SHIFT;
+ EMIF_SYS_ADDR_SHIFT;
section_map |= get_dmm_section_size_map(mapped_size * 2)
- << OMAP44XX_SYS_SIZE_SHIFT;
+ << EMIF_SYS_SIZE_SHIFT;
lis_map_regs_calculated.dmm_lisa_map_3 = section_map;
emif1_size -= mapped_size;
emif2_size -= mapped_size;
if (emif1_size) {
section_map = DMM_LISA_MAP_EMIF1_ONLY_BASE_VAL;
section_map |= get_dmm_section_size_map(emif1_size)
- << OMAP44XX_SYS_SIZE_SHIFT;
+ << EMIF_SYS_SIZE_SHIFT;
/* only MSB */
section_map |= (mapped_size >> 24) <<
- OMAP44XX_SDRC_ADDR_SHIFT;
+ EMIF_SDRC_ADDR_SHIFT;
/* only MSB */
- section_map |= (sys_addr >> 24) << OMAP44XX_SYS_ADDR_SHIFT;
+ section_map |= (sys_addr >> 24) << EMIF_SYS_ADDR_SHIFT;
section_cnt--;
}
if (emif2_size) {
section_map = DMM_LISA_MAP_EMIF2_ONLY_BASE_VAL;
section_map |= get_dmm_section_size_map(emif2_size) <<
- OMAP44XX_SYS_SIZE_SHIFT;
+ EMIF_SYS_SIZE_SHIFT;
/* only MSB */
- section_map |= mapped_size >> 24 << OMAP44XX_SDRC_ADDR_SHIFT;
+ section_map |= mapped_size >> 24 << EMIF_SDRC_ADDR_SHIFT;
/* only MSB */
- section_map |= sys_addr >> 24 << OMAP44XX_SYS_ADDR_SHIFT;
+ section_map |= sys_addr >> 24 << EMIF_SYS_ADDR_SHIFT;
section_cnt--;
}
if (omap_revision() >= OMAP4460_ES1_0) {
hw_lisa_map_regs =
- (struct dmm_lisa_map_regs *)OMAP44XX_MA_LISA_MAP_BASE;
+ (struct dmm_lisa_map_regs *)MA_BASE;
writel(lisa_map_regs->dmm_lisa_map_3,
&hw_lisa_map_regs->dmm_lisa_map_3);
writel(lisa_map_regs->dmm_lisa_map_0,
&hw_lisa_map_regs->dmm_lisa_map_0);
}
+
+ /*
+ * EMIF should be configured only when
+ * memory is mapped on it. Using emif1_enabled
+ * and emif2_enabled variables for this.
+ */
+ emif1_enabled = 0;
+ emif2_enabled = 0;
+ for (i = 0; i < 4; i++) {
+ section = __raw_readl(DMM_BASE + i*4);
+ valid = (section & EMIF_SDRC_MAP_MASK) >>
+ (EMIF_SDRC_MAP_SHIFT);
+ if (valid == 3) {
+ emif1_enabled = 1;
+ emif2_enabled = 1;
+ break;
+ } else if (valid == 1) {
+ emif1_enabled = 1;
+ } else if (valid == 2) {
+ emif2_enabled = 1;
+ }
+ }
+
}
/*
void sdram_init(void)
{
u32 in_sdram, size_prog, size_detect;
+ u32 omap_rev = omap_revision();
debug(">>sdram_init()\n");
- if (omap4_hw_init_context() == OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL)
+ if (omap_hw_init_context() == OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL)
return;
in_sdram = running_from_sdram();
debug("in_sdram = %d\n", in_sdram);
- if (!in_sdram)
- bypass_dpll(&prcm->cm_clkmode_dpll_core);
+ if (!(in_sdram || warm_reset())) {
+ if (omap_rev != OMAP5432_ES1_0)
+ bypass_dpll(&prcm->cm_clkmode_dpll_core);
+ else
+ writel(CM_DLL_CTRL_NO_OVERRIDE, &prcm->cm_dll_ctrl);
+ }
+ if (!in_sdram)
+ dmm_init(DMM_BASE);
- do_sdram_init(OMAP44XX_EMIF1);
- do_sdram_init(OMAP44XX_EMIF2);
+ if (emif1_enabled)
+ do_sdram_init(EMIF1_BASE);
- if (!in_sdram) {
- dmm_init(OMAP44XX_DMM_LISA_MAP_BASE);
- emif_post_init_config(OMAP44XX_EMIF1);
- emif_post_init_config(OMAP44XX_EMIF2);
+ if (emif2_enabled)
+ do_sdram_init(EMIF2_BASE);
+ if (!(in_sdram || warm_reset())) {
+ if (emif1_enabled)
+ emif_post_init_config(EMIF1_BASE);
+ if (emif2_enabled)
+ emif_post_init_config(EMIF2_BASE);
}
/* for the shadow registers to take effect */
- freq_update_core();
+ if (omap_rev != OMAP5432_ES1_0)
+ freq_update_core();
/* Do some testing after the init */
if (!in_sdram) {
- size_prog = omap4_sdram_size();
+ size_prog = omap_sdram_size();
+ size_prog = log_2_n_round_down(size_prog);
+ size_prog = (1 << size_prog);
+
size_detect = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
size_prog);
/* Compare with the size programmed */