DDR errata-A008378 applies to LS1021-20-22A-R1.0, T1023-R1.0, T1024-R1.0, T1040-42-20-22-R1.0/R1.1, it has been fixed on LS102x Rev2.
Signed-off-by: Shengzhou Liu Shengzhou.Liu@freescale.com --- arch/powerpc/include/asm/config_mpc85xx.h | 2 ++ drivers/ddr/fsl/fsl_ddr_gen4.c | 9 ++++++--- include/fsl_errata.h | 31 +++++++++++++++++++++++++++++++ 3 files changed, 39 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h index aabe253..6308c6e 100644 --- a/arch/powerpc/include/asm/config_mpc85xx.h +++ b/arch/powerpc/include/asm/config_mpc85xx.h @@ -797,6 +797,7 @@ defined(CONFIG_PPC_T1020) || defined(CONFIG_PPC_T1022) #define MAX_QE_RISC 1 #define QE_NUM_OF_SNUM 28 #define CONFIG_SYS_FSL_SFP_VER_3_0 +#define CONFIG_SYS_FSL_ERRATUM_A008378
#elif defined(CONFIG_PPC_T1024) || defined(CONFIG_PPC_T1023) ||\ defined(CONFIG_PPC_T1014) || defined(CONFIG_PPC_T1013) @@ -844,6 +845,7 @@ defined(CONFIG_PPC_T1014) || defined(CONFIG_PPC_T1013) #define MAX_QE_RISC 1 #define QE_NUM_OF_SNUM 28 #define CONFIG_SYS_FSL_SFP_VER_3_0 +#define CONFIG_SYS_FSL_ERRATUM_A008378
#elif defined(CONFIG_PPC_T2080) || defined(CONFIG_PPC_T2081) #define CONFIG_E6500 diff --git a/drivers/ddr/fsl/fsl_ddr_gen4.c b/drivers/ddr/fsl/fsl_ddr_gen4.c index 4eef047..1ef220b 100644 --- a/drivers/ddr/fsl/fsl_ddr_gen4.c +++ b/drivers/ddr/fsl/fsl_ddr_gen4.c @@ -10,6 +10,7 @@ #include <asm/processor.h> #include <fsl_immap.h> #include <fsl_ddr.h> +#include <fsl_errata.h>
#if (CONFIG_CHIP_SELECTS_PER_CTRL > 4) #error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL @@ -175,9 +176,11 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, /* 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); + if (has_erratum_a008378()) { + if (IS_ACC_ECC_EN(regs->ddr_sdram_cfg) || + IS_DBI(regs->ddr_sdram_cfg_3)) + ddr_setbits32(&ddr->debug[28], 0x9 << 20); + } #endif
/* diff --git a/include/fsl_errata.h b/include/fsl_errata.h index 8f81e4c..283cfcf 100644 --- a/include/fsl_errata.h +++ b/include/fsl_errata.h @@ -58,4 +58,35 @@ static inline bool has_erratum_a007186(void) } #endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_A008378 +static inline bool has_erratum_a008378(void) +{ + u32 svr = get_svr(); + u32 soc = SVR_SOC_VER(svr); + + + switch (soc) { +#ifdef CONFIG_LS102XA + case SOC_VER_LS1020: + case SOC_VER_LS1021: + case SOC_VER_LS1022: + case SOC_VER_SLS1020: + return IS_SVR_REV(svr, 1, 0); +#endif +#ifdef CONFIG_PPC + case SVR_T1023: + case SVR_T1024: + return IS_SVR_REV(svr, 1, 0); + case SVR_T1020: + case SVR_T1022: + case SVR_T1040: + case SVR_T1042: + return IS_SVR_REV(svr, 1, 0) || IS_SVR_REV(svr, 1, 1); +#endif + default: + return false; + } +} +#endif + #endif /* _FSL_ERRATA_H */