During DDR-2133 operation, the transmit data eye margins determined
during the memory controller initialization may be sub-optimal, set
DEBUG_29[12] and DEBUG_29[13:16] = 4'b0100 before MEM_EN is set.
Signed-off-by: Shengzhou Liu <shengzhou....@nxp.com>
---
arch/arm/include/asm/arch-fsl-layerscape/config.h | 1 +
drivers/ddr/fsl/fsl_ddr_gen4.c | 10 +++++++++-
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/config.h
b/arch/arm/include/asm/arch-fsl-layerscape/config.h
index f876c56..a38dc0e 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/config.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/config.h
@@ -146,6 +146,7 @@
#define CONFIG_SYS_FSL_ERRATUM_A009801
#define CONFIG_SYS_FSL_ERRATUM_A009803
#define CONFIG_SYS_FSL_ERRATUM_A009942
+#define CONFIG_SYS_FSL_ERRATUM_A010165
#define CONFIG_SYS_FSL_MAX_NUM_OF_SEC 1
#elif defined(CONFIG_LS1043A)
#define CONFIG_MAX_CPUS 4
diff --git a/drivers/ddr/fsl/fsl_ddr_gen4.c b/drivers/ddr/fsl/fsl_ddr_gen4.c
index 1dc0631..5039f5d 100644
--- a/drivers/ddr/fsl/fsl_ddr_gen4.c
+++ b/drivers/ddr/fsl/fsl_ddr_gen4.c
@@ -56,7 +56,8 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
u32 vref_seq2[3] = {0xc0, 0xf0, 0x70}; /* for range 2 */
u32 *vref_seq = vref_seq1;
#endif
-#ifdef CONFIG_SYS_FSL_ERRATUM_A009942
+#if defined(CONFIG_SYS_FSL_ERRATUM_A009942) | \
+ defined(CONFIG_SYS_FSL_ERRATUM_A010165)
ulong ddr_freq;
u32 tmp;
#endif
@@ -271,6 +272,13 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t
*regs,
ddr_out32(&ddr->debug[28], tmp | 0x0060007b);
#endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_A010165
+ ddr_freq = get_ddr_freq(ctrl_num) / 1000000;
+ if ((ddr_freq > 1900) && (ddr_freq < 2300)) {
+ tmp = ddr_in32(&ddr->debug[28]);
+ ddr_out32(&ddr->debug[28], tmp | 0x000a0000);
+ }
+#endif
/*
* For RDIMMs, JEDEC spec requires clocks to be stable before reset is
* deasserted. Clocks start when any chip select is enabled and clock
--
2.1.0.27.g96db324
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