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Diffstat (limited to 'arch/arm/cpu/armv7/am33xx/emif4.c')
-rw-r--r--arch/arm/cpu/armv7/am33xx/emif4.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c
index 171d764..b2d7c0d 100644
--- a/arch/arm/cpu/armv7/am33xx/emif4.c
+++ b/arch/arm/cpu/armv7/am33xx/emif4.c
@@ -87,6 +87,38 @@ static const struct emif_regs ddr2_emif_reg_data = {
.emif_ddr_phy_ctlr_1 = DDR2_EMIF_READ_LATENCY,
};
+static const struct ddr_data ddr3_data = {
+ .datardsratio0 = DDR3_RD_DQS,
+ .datawdsratio0 = DDR3_WR_DQS,
+ .datafwsratio0 = DDR3_PHY_FIFO_WE,
+ .datawrsratio0 = DDR3_PHY_WR_DATA,
+ .datadldiff0 = PHY_DLL_LOCK_DIFF,
+};
+
+static const struct cmd_control ddr3_cmd_ctrl_data = {
+ .cmd0csratio = DDR3_RATIO,
+ .cmd0dldiff = DDR3_DLL_LOCK_DIFF,
+ .cmd0iclkout = DDR3_INVERT_CLKOUT,
+
+ .cmd1csratio = DDR3_RATIO,
+ .cmd1dldiff = DDR3_DLL_LOCK_DIFF,
+ .cmd1iclkout = DDR3_INVERT_CLKOUT,
+
+ .cmd2csratio = DDR3_RATIO,
+ .cmd2dldiff = DDR3_DLL_LOCK_DIFF,
+ .cmd2iclkout = DDR3_INVERT_CLKOUT,
+};
+
+static struct emif_regs ddr3_emif_reg_data = {
+ .sdram_config = DDR3_EMIF_SDCFG,
+ .ref_ctrl = DDR3_EMIF_SDREF,
+ .sdram_tim1 = DDR3_EMIF_TIM1,
+ .sdram_tim2 = DDR3_EMIF_TIM2,
+ .sdram_tim3 = DDR3_EMIF_TIM3,
+ .zq_config = DDR3_ZQ_CFG,
+ .emif_ddr_phy_ctlr_1 = DDR3_EMIF_READ_LATENCY,
+};
+
static void config_vtp(void)
{
writel(readl(&vtpreg->vtp0ctrlreg) | VTP_CTRL_ENABLE,
@@ -115,6 +147,15 @@ void config_ddr(short ddr_type)
ddr_data = &ddr2_data;
ioctrl_val = DDR2_IOCTRL_VALUE;
emif_regs = &ddr2_emif_reg_data;
+ } else if (ddr_type == EMIF_REG_SDRAM_TYPE_DDR3) {
+ ddr_pll = 303;
+ cmd_ctrl_data = &ddr3_cmd_ctrl_data;
+ ddr_data = &ddr3_data;
+ ioctrl_val = DDR3_IOCTRL_VALUE;
+ emif_regs = &ddr3_emif_reg_data;
+ } else {
+ puts("Unknown memory type");
+ hang();
}
enable_emif_clocks();