fsl-ddr: add the DDR3 SPD infrastructure
- support mirrored DIMMs, not support register DIMMs
- test passed on P2020DS board with MT9JSF12872AY-1G1D1
- test passed on MPC8569MDS board with MT8JSF12864HY-1G1D1
Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Travis Wheatley <travis.wheatley@freescale.com>
diff --git a/include/asm-ppc/fsl_ddr_sdram.h b/include/asm-ppc/fsl_ddr_sdram.h
index 6e3b255..c2e5aee 100644
--- a/include/asm-ppc/fsl_ddr_sdram.h
+++ b/include/asm-ppc/fsl_ddr_sdram.h
@@ -19,6 +19,11 @@
#define SDRAM_TYPE_LPDDR1 6
#define SDRAM_TYPE_DDR3 7
+#define DDR_BL4 4 /* burst length 4 */
+#define DDR_BC4 DDR_BL4 /* burst chop for ddr3 */
+#define DDR_OTF 6 /* on-the-fly BC4 and BL8 */
+#define DDR_BL8 8 /* burst length 8 */
+
#if defined(CONFIG_FSL_DDR1)
#define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR (1)
typedef ddr1_spd_eeprom_t generic_spd_eeprom_t;
@@ -68,6 +73,18 @@
#define SDRAM_CFG_2T_EN 0x00008000
#define SDRAM_CFG_BI 0x00000001
+#if defined(CONFIG_P4080)
+#define RD_TO_PRE_MASK 0xf
+#define RD_TO_PRE_SHIFT 13
+#define WR_DATA_DELAY_MASK 0xf
+#define WR_DATA_DELAY_SHIFT 9
+#else
+#define RD_TO_PRE_MASK 0x7
+#define RD_TO_PRE_SHIFT 13
+#define WR_DATA_DELAY_MASK 0x7
+#define WR_DATA_DELAY_SHIFT 10
+#endif
+
/* Record of register values computed */
typedef struct fsl_ddr_cfg_regs_s {
struct {
@@ -145,7 +162,11 @@
unsigned int dynamic_power; /* DYN_PWR */
/* memory data width to use (16-bit, 32-bit, 64-bit) */
unsigned int data_bus_width;
- unsigned int burst_length; /* 4, 8 */
+ unsigned int burst_length; /* BL4, OTF and BL8 */
+ /* On-The-Fly Burst Chop enable */
+ unsigned int OTF_burst_chop_en;
+ /* mirrior DIMMs for DDR3 */
+ unsigned int mirrored_dimm;
/* Global Timing Parameters */
unsigned int cas_latency_override;
@@ -164,9 +185,17 @@
unsigned int tCKE_clock_pulse_width_ps; /* tCKE */
unsigned int tFAW_window_four_activates_ps; /* tFAW -- FOUR_ACT */
+ /* Rtt impedance */
+ unsigned int rtt_override; /* rtt_override enable */
+ unsigned int rtt_override_value; /* that is Rtt_Nom for DDR3 */
+
/* Automatic self refresh */
unsigned int auto_self_refresh_en;
unsigned int sr_it;
+ /* ZQ calibration */
+ unsigned int zq_en;
+ /* Write leveling */
+ unsigned int wrlvl_en;
} memctl_options_t;
extern phys_size_t fsl_ddr_sdram(void);
