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Diffstat (limited to 'arch/arm/cpu/armv7/omap-common/emif-common.c')
-rw-r--r--arch/arm/cpu/armv7/omap-common/emif-common.c41
1 files changed, 39 insertions, 2 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/emif-common.c b/arch/arm/cpu/armv7/omap-common/emif-common.c
index 62678ff5d3..db509c9295 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)
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