[U-Boot] [PATCH] powerpc/mpc85xx: Add workaround for DDR erratum A004508
When the DDR controller is initialized below a junction temperature of 0°C and then operated above a junction temperature of 65°C, the DDR controller may cause receive data errors, resulting ECC errors and/or corrupted data. This erratum applies to the following SoCs and their variants: MPC8536, MPC8569, MPC8572, P1010, P1020, P1021, P1022, P1023, P2020.
Signed-off-by: York Sun yorksun@freescale.com --- arch/powerpc/cpu/mpc85xx/cmd_errata.c | 3 +++ arch/powerpc/include/asm/config_mpc85xx.h | 18 ++++++++++++++++++ drivers/ddr/fsl/ctrl_regs.c | 9 +++++++++ 3 files changed, 30 insertions(+)
diff --git a/arch/powerpc/cpu/mpc85xx/cmd_errata.c b/arch/powerpc/cpu/mpc85xx/cmd_errata.c index 3d37a76..f69c834 100644 --- a/arch/powerpc/cpu/mpc85xx/cmd_errata.c +++ b/arch/powerpc/cpu/mpc85xx/cmd_errata.c @@ -231,6 +231,9 @@ static int do_errata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) if ((SVR_MAJ(svr) == 1) || IS_SVR_REV(svr, 2, 0)) puts("Work-around for Erratum NMG ETSEC129 enabled\n"); #endif +#ifdef CONFIG_SYS_FSL_ERRATUM_A004508 + puts("Work-around for Erratum A004508 enabled\n"); +#endif #ifdef CONFIG_SYS_FSL_ERRATUM_A004510 puts("Work-around for Erratum A004510 enabled\n"); #endif diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h index 34fc8fb..c9fd2a5 100644 --- a/arch/powerpc/include/asm/config_mpc85xx.h +++ b/arch/powerpc/include/asm/config_mpc85xx.h @@ -38,6 +38,7 @@ #define CONFIG_SYS_PPC_E500_DEBUG_TLB 1 #define CONFIG_SYS_FSL_SEC_COMPAT 2 #define CONFIG_SYS_CCSRBAR_DEFAULT 0xff700000 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125
#elif defined(CONFIG_MPC8540) @@ -122,6 +123,7 @@ #define CONFIG_SYS_FSL_SRIO_IB_WIN_NUM 5 #define CONFIG_SYS_FSL_RMU #define CONFIG_SYS_FSL_SRIO_MSG_UNIT_NUM 2 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125
#elif defined(CONFIG_MPC8572) @@ -132,6 +134,7 @@ #define CONFIG_SYS_CCSRBAR_DEFAULT 0xff700000 #define CONFIG_SYS_FSL_ERRATUM_DDR_115 #define CONFIG_SYS_FSL_ERRATUM_DDR111_DDR134 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125
#elif defined(CONFIG_P1010) @@ -154,6 +157,7 @@ #define CONFIG_SYS_FSL_ERRATUM_IFC_A003399 #define CONFIG_SYS_FSL_ERRATUM_A005125 #define CONFIG_SYS_FSL_ERRATUM_I2C_A004447 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A007075 #define CONFIG_SYS_FSL_ERRATUM_A006261 #define CONFIG_SYS_FSL_A004447_SVR_REV 0x10 @@ -171,6 +175,7 @@ #define CONFIG_SYS_CCSRBAR_DEFAULT 0xff700000 #define CONFIG_SYS_FSL_ERRATUM_ELBC_A001 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125
/* P1012 is single core version of P1021 */ @@ -188,6 +193,7 @@ #define QE_MURAM_SIZE 0x6000UL #define MAX_QE_RISC 1 #define QE_NUM_OF_SNUM 28 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125
/* P1013 is single core version of P1022 */ @@ -202,6 +208,7 @@ #define CONFIG_SYS_FSL_ERRATUM_ELBC_A001 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111 #define CONFIG_FSL_SATA_ERRATUM_A001 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125
#elif defined(CONFIG_P1014) @@ -219,6 +226,7 @@ #define CONFIG_SYS_FSL_ERRATUM_IFC_A002769 #define CONFIG_SYS_FSL_ERRATUM_P1010_A003549 #define CONFIG_SYS_FSL_ERRATUM_IFC_A003399 +#define CONFIG_SYS_FSL_ERRATUM_A004508
/* P1017 is single core version of P1023 */ #elif defined(CONFIG_P1017) @@ -234,6 +242,7 @@ #define CONFIG_SYS_FM_MURAM_SIZE 0x10000 #define CONFIG_SYS_FSL_PCIE_COMPAT "fsl,qoriq-pcie-v2.2" #define CONFIG_SYS_CCSRBAR_DEFAULT 0xff600000 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125
#elif defined(CONFIG_P1020) @@ -246,6 +255,7 @@ #define CONFIG_SYS_CCSRBAR_DEFAULT 0xff700000 #define CONFIG_SYS_FSL_ERRATUM_ELBC_A001 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125 #ifndef CONFIG_USB_MAX_CONTROLLER_COUNT #define CONFIG_USB_MAX_CONTROLLER_COUNT 2 @@ -264,6 +274,7 @@ #define QE_MURAM_SIZE 0x6000UL #define MAX_QE_RISC 1 #define QE_NUM_OF_SNUM 28 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125 #define CONFIG_USB_MAX_CONTROLLER_COUNT 1
@@ -278,6 +289,7 @@ #define CONFIG_SYS_FSL_ERRATUM_ELBC_A001 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111 #define CONFIG_FSL_SATA_ERRATUM_A001 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125
#elif defined(CONFIG_P1023) @@ -293,6 +305,7 @@ #define CONFIG_SYS_FM_MURAM_SIZE 0x10000 #define CONFIG_SYS_FSL_PCIE_COMPAT "fsl,qoriq-pcie-v2.2" #define CONFIG_SYS_CCSRBAR_DEFAULT 0xff600000 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125 #define CONFIG_SYS_FSL_ERRATUM_I2C_A004447 #define CONFIG_SYS_FSL_A004447_SVR_REV 0x11 @@ -309,6 +322,7 @@ #define CONFIG_SYS_CCSRBAR_DEFAULT 0xff700000 #define CONFIG_SYS_FSL_ERRATUM_ELBC_A001 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125
/* P1025 is lower end variant of P1021 */ @@ -326,6 +340,7 @@ #define QE_MURAM_SIZE 0x6000UL #define MAX_QE_RISC 1 #define QE_NUM_OF_SNUM 28 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125
/* P2010 is single core version of P2020 */ @@ -338,6 +353,7 @@ #define CONFIG_SYS_CCSRBAR_DEFAULT 0xff700000 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111 #define CONFIG_SYS_FSL_ERRATUM_ESDHC_A001 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125
#elif defined(CONFIG_P2020) @@ -353,8 +369,10 @@ #define CONFIG_SYS_FSL_SRIO_IB_WIN_NUM 5 #define CONFIG_SYS_FSL_RMU #define CONFIG_SYS_FSL_SRIO_MSG_UNIT_NUM 2 +#define CONFIG_SYS_FSL_ERRATUM_A004508 #define CONFIG_SYS_FSL_ERRATUM_A005125 #define CONFIG_USB_MAX_CONTROLLER_COUNT 1 + #elif defined(CONFIG_PPC_P2041) /* also supports P2040 */ #define CONFIG_SYS_FSL_QORIQ_CHASSIS1 #define CONFIG_FSL_CORENET /* Freescale CoreNet platform */ diff --git a/drivers/ddr/fsl/ctrl_regs.c b/drivers/ddr/fsl/ctrl_regs.c index 78e82bb..38654ff 100644 --- a/drivers/ddr/fsl/ctrl_regs.c +++ b/drivers/ddr/fsl/ctrl_regs.c @@ -2304,5 +2304,14 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts, ddr->debug[2] = 0x00000400; ddr->debug[4] = 0xff800000; #endif + + if ((ip_rev >= 0x40000) && (ip_rev < 0x40400)) { +#ifdef CONFIG_SYS_FSL_ERRATUM_A004508 + ddr->debug[2] |= 0x00000200; /* set bit 22 */ +#else + puts("Warning: Workaround for A004508 is not enabled.\n"); +#endif + } + return check_fsl_memctl_config_regs(ddr); }
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York Sun