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Diffstat (limited to 'arch/arm/cpu/armv7/am33xx/emif4.c')
-rw-r--r--arch/arm/cpu/armv7/am33xx/emif4.c22
1 files changed, 21 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c
index adda650fe8..d28fceb75c 100644
--- a/arch/arm/cpu/armv7/am33xx/emif4.c
+++ b/arch/arm/cpu/armv7/am33xx/emif4.c
@@ -48,6 +48,11 @@ static struct vtp_reg *vtpreg[2] = {
#ifdef CONFIG_AM33XX
static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR;
#endif
+#ifdef CONFIG_AM43XX
+static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR;
+static struct cm_device_inst *cm_device =
+ (struct cm_device_inst *)CM_DEVICE_INST;
+#endif
#ifdef CONFIG_TI81XX
void config_dmm(const struct dmm_lisa_map_regs *regs)
@@ -104,9 +109,24 @@ void config_ddr(unsigned int pll, const struct ctrl_ioregs *ioregs,
/* Set CKE to be controlled by EMIF/DDR PHY */
writel(DDR_CKE_CTRL_NORMAL, &ddrctrl->ddrckectrl);
#endif
+#ifdef CONFIG_AM43XX
+ writel(readl(&cm_device->cm_dll_ctrl) & ~0x1, &cm_device->cm_dll_ctrl);
+ while ((readl(&cm_device->cm_dll_ctrl) && CM_DLL_READYST) == 0)
+ ;
+ writel(0x0, &ddrctrl->ddrioctrl);
+
+ config_io_ctrl(ioregs);
+
+ /* Set CKE to be controlled by EMIF/DDR PHY */
+ writel(DDR_CKE_CTRL_NORMAL, &ddrctrl->ddrckectrl);
+#endif
+
/* Program EMIF instance */
config_ddr_phy(regs, nr);
set_sdram_timings(regs, nr);
- config_sdram(regs, nr);
+ if (get_emif_rev(EMIF1_BASE) == EMIF_4D5)
+ config_sdram_emif4d5(regs, nr);
+ else
+ config_sdram(regs, nr);
}
#endif