driver/ddr/fsl: Update DDR4 RTT values
DDR4 has different RTT value and code according to JEDEC spec. Update
the macros and options .
Signed-off-by: York Sun <yorksun@freescale.com>
diff --git a/drivers/ddr/fsl/options.c b/drivers/ddr/fsl/options.c
index 3c09c64..791d644 100644
--- a/drivers/ddr/fsl/options.c
+++ b/drivers/ddr/fsl/options.c
@@ -29,7 +29,240 @@
unsigned int odt_rtt_wr;
};
-#if defined(CONFIG_SYS_FSL_DDR3) || defined(CONFIG_SYS_FSL_DDR4)
+#ifdef CONFIG_SYS_FSL_DDR4
+/* Quad rank is not verified yet due availability.
+ * Replacing 20 OHM with 34 OHM since DDR4 doesn't have 20 OHM option
+ */
+static const struct dynamic_odt single_Q[4] = {
+ { /* cs0 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_CS_AND_OTHER_DIMM,
+ DDR4_RTT_34_OHM, /* unverified */
+ DDR4_RTT_120_OHM
+ },
+ { /* cs1 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_NEVER,
+ DDR4_RTT_OFF,
+ DDR4_RTT_120_OHM
+ },
+ { /* cs2 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_CS_AND_OTHER_DIMM,
+ DDR4_RTT_34_OHM,
+ DDR4_RTT_120_OHM
+ },
+ { /* cs3 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_NEVER, /* tied high */
+ DDR4_RTT_OFF,
+ DDR4_RTT_120_OHM
+ }
+};
+
+static const struct dynamic_odt single_D[4] = {
+ { /* cs0 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_ALL,
+ DDR4_RTT_40_OHM,
+ DDR4_RTT_OFF
+ },
+ { /* cs1 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_NEVER,
+ DDR4_RTT_OFF,
+ DDR4_RTT_OFF
+ },
+ {0, 0, 0, 0},
+ {0, 0, 0, 0}
+};
+
+static const struct dynamic_odt single_S[4] = {
+ { /* cs0 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_ALL,
+ DDR4_RTT_40_OHM,
+ DDR4_RTT_OFF
+ },
+ {0, 0, 0, 0},
+ {0, 0, 0, 0},
+ {0, 0, 0, 0},
+};
+
+static const struct dynamic_odt dual_DD[4] = {
+ { /* cs0 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_SAME_DIMM,
+ DDR4_RTT_120_OHM,
+ DDR4_RTT_OFF
+ },
+ { /* cs1 */
+ FSL_DDR_ODT_OTHER_DIMM,
+ FSL_DDR_ODT_OTHER_DIMM,
+ DDR4_RTT_34_OHM,
+ DDR4_RTT_OFF
+ },
+ { /* cs2 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_SAME_DIMM,
+ DDR4_RTT_120_OHM,
+ DDR4_RTT_OFF
+ },
+ { /* cs3 */
+ FSL_DDR_ODT_OTHER_DIMM,
+ FSL_DDR_ODT_OTHER_DIMM,
+ DDR4_RTT_34_OHM,
+ DDR4_RTT_OFF
+ }
+};
+
+static const struct dynamic_odt dual_DS[4] = {
+ { /* cs0 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_SAME_DIMM,
+ DDR4_RTT_120_OHM,
+ DDR4_RTT_OFF
+ },
+ { /* cs1 */
+ FSL_DDR_ODT_OTHER_DIMM,
+ FSL_DDR_ODT_OTHER_DIMM,
+ DDR4_RTT_34_OHM,
+ DDR4_RTT_OFF
+ },
+ { /* cs2 */
+ FSL_DDR_ODT_OTHER_DIMM,
+ FSL_DDR_ODT_ALL,
+ DDR4_RTT_34_OHM,
+ DDR4_RTT_120_OHM
+ },
+ {0, 0, 0, 0}
+};
+static const struct dynamic_odt dual_SD[4] = {
+ { /* cs0 */
+ FSL_DDR_ODT_OTHER_DIMM,
+ FSL_DDR_ODT_ALL,
+ DDR4_RTT_34_OHM,
+ DDR4_RTT_120_OHM
+ },
+ {0, 0, 0, 0},
+ { /* cs2 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_SAME_DIMM,
+ DDR4_RTT_120_OHM,
+ DDR4_RTT_OFF
+ },
+ { /* cs3 */
+ FSL_DDR_ODT_OTHER_DIMM,
+ FSL_DDR_ODT_OTHER_DIMM,
+ DDR4_RTT_34_OHM,
+ DDR4_RTT_OFF
+ }
+};
+
+static const struct dynamic_odt dual_SS[4] = {
+ { /* cs0 */
+ FSL_DDR_ODT_OTHER_DIMM,
+ FSL_DDR_ODT_ALL,
+ DDR4_RTT_34_OHM,
+ DDR4_RTT_120_OHM
+ },
+ {0, 0, 0, 0},
+ { /* cs2 */
+ FSL_DDR_ODT_OTHER_DIMM,
+ FSL_DDR_ODT_ALL,
+ DDR4_RTT_34_OHM,
+ DDR4_RTT_120_OHM
+ },
+ {0, 0, 0, 0}
+};
+
+static const struct dynamic_odt dual_D0[4] = {
+ { /* cs0 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_SAME_DIMM,
+ DDR4_RTT_40_OHM,
+ DDR4_RTT_OFF
+ },
+ { /* cs1 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_NEVER,
+ DDR4_RTT_OFF,
+ DDR4_RTT_OFF
+ },
+ {0, 0, 0, 0},
+ {0, 0, 0, 0}
+};
+
+static const struct dynamic_odt dual_0D[4] = {
+ {0, 0, 0, 0},
+ {0, 0, 0, 0},
+ { /* cs2 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_SAME_DIMM,
+ DDR4_RTT_40_OHM,
+ DDR4_RTT_OFF
+ },
+ { /* cs3 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_NEVER,
+ DDR4_RTT_OFF,
+ DDR4_RTT_OFF
+ }
+};
+
+static const struct dynamic_odt dual_S0[4] = {
+ { /* cs0 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_CS,
+ DDR4_RTT_40_OHM,
+ DDR4_RTT_OFF
+ },
+ {0, 0, 0, 0},
+ {0, 0, 0, 0},
+ {0, 0, 0, 0}
+
+};
+
+static const struct dynamic_odt dual_0S[4] = {
+ {0, 0, 0, 0},
+ {0, 0, 0, 0},
+ { /* cs2 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_CS,
+ DDR4_RTT_40_OHM,
+ DDR4_RTT_OFF
+ },
+ {0, 0, 0, 0}
+
+};
+
+static const struct dynamic_odt odt_unknown[4] = {
+ { /* cs0 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_CS,
+ DDR4_RTT_120_OHM,
+ DDR4_RTT_OFF
+ },
+ { /* cs1 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_CS,
+ DDR4_RTT_120_OHM,
+ DDR4_RTT_OFF
+ },
+ { /* cs2 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_CS,
+ DDR4_RTT_120_OHM,
+ DDR4_RTT_OFF
+ },
+ { /* cs3 */
+ FSL_DDR_ODT_NEVER,
+ FSL_DDR_ODT_CS,
+ DDR4_RTT_120_OHM,
+ DDR4_RTT_OFF
+ }
+};
+#elif defined(CONFIG_SYS_FSL_DDR3)
static const struct dynamic_odt single_Q[4] = {
{ /* cs0 */
FSL_DDR_ODT_NEVER,
@@ -259,7 +492,7 @@
DDR3_RTT_OFF
}
};
-#else /* CONFIG_SYS_FSL_DDR3 || CONFIG_SYS_FSL_DDR4 */
+#else /* CONFIG_SYS_FSL_DDR3 */
static const struct dynamic_odt single_Q[4] = {
{0, 0, 0, 0},
{0, 0, 0, 0},