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| author | Sricharan R <r.sricharan@ti.com> | 2013-05-30 03:19:39 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-06-10 08:43:10 -0400 |
| commit | 92b0482c17acf92f94ac74fd8536fd95d5b64b5e (patch) | |
| tree | 1b8357119fd332ae53f60e03e3962973347b7958 /arch/arm/cpu/armv7/omap-common | |
| parent | 97405d843ece2a53e67b801e02ee42005d26e172 (diff) | |
| download | u-boot-imx-92b0482c17acf92f94ac74fd8536fd95d5b64b5e.zip u-boot-imx-92b0482c17acf92f94ac74fd8536fd95d5b64b5e.tar.gz u-boot-imx-92b0482c17acf92f94ac74fd8536fd95d5b64b5e.tar.bz2 | |
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>
Diffstat (limited to 'arch/arm/cpu/armv7/omap-common')
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/emif-common.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/emif-common.c b/arch/arm/cpu/armv7/omap-common/emif-common.c index 8823967..652e5a7 100644 --- 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 */ |