Internal memory controller counters can reach a bad state after
training in DDR4 mode if accumulated ECC or DBI mode is eanbled.
Signed-off-by: York Sun <york...@freescale.com>
---
arch/arm/include/asm/arch-ls102xa/config.h | 1 +
drivers/ddr/fsl/fsl_ddr_gen4.c | 8 ++++++++
2 files changed, 9 insertions(+)
diff --git a/arch/arm/include/asm/arch-ls102xa/config.h
b/arch/arm/include/asm/arch-ls102xa/config.h
index ba86eea..7bd3d2f 100644
--- a/arch/arm/include/asm/arch-ls102xa/config.h
+++ b/arch/arm/include/asm/arch-ls102xa/config.h
@@ -88,6 +88,7 @@
#define CONFIG_SYS_FSL_DDR_VER FSL_DDR_VER_5_0
#define CONFIG_SYS_FSL_SEC_COMPAT 5
#define CONFIG_USB_MAX_CONTROLLER_COUNT 1
+#define CONFIG_SYS_FSL_ERRATUM_A008378
#else
#error SoC not defined
#endif
diff --git a/drivers/ddr/fsl/fsl_ddr_gen4.c b/drivers/ddr/fsl/fsl_ddr_gen4.c
index e024db9..43b454a 100644
--- a/drivers/ddr/fsl/fsl_ddr_gen4.c
+++ b/drivers/ddr/fsl/fsl_ddr_gen4.c
@@ -157,6 +157,14 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t
*regs,
ddr_out32(&ddr->debug[i], regs->debug[i]);
}
}
+#ifdef CONFIG_SYS_FSL_ERRATUM_A008378
+ /* Erratum applies when accumulated ECC is used, or DBI is enabled */
+#define IS_ACC_ECC_EN(v) (v & 0x4)
+#define IS_DBI(v) ((v >> 12) & 0x3 == 0x2)
+ if (IS_ACC_ECC_EN(regs->ddr_sdram_cfg) ||
+ IS_DBI(regs->ddr_sdram_cfg_3))
+ ddr_setbits32(ddr->debug[28], 0x9 << 20);
+#endif
/*
* For RDIMMs, JEDEC spec requires clocks to be stable before reset is
--
1.7.9.5
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