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>

diff --git a/arch/powerpc/cpu/mpc85xx/cmd_errata.c b/arch/powerpc/cpu/mpc85xx/cmd_errata.c
index 3d37a7614f9cb232938fea5cb02e2d044098737f..f69c83489735b8197bf7871f6f49c3b29a8ea540 100644 (file)
--- 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 34fc8fb5347f3a47217f414b50dbbb6b49710f0a..c9fd2a554aa0e1c9a69f22350e2f8d42aedb6e58 100644 (file)
--- 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 78e82bba3d4302a3f34efe1ea0df8a70b0c406fc..dcf6287f66395aa5b100643c0d46973747edefb0 100644 (file)
--- a/drivers/ddr/fsl/ctrl_regs.c
+++ b/drivers/ddr/fsl/ctrl_regs.c
@@ -2304,5 +2304,10 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts,
        ddr->debug[2] = 0x00000400;
        ddr->debug[4] = 0xff800000;
 #endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_A004508
+       if ((ip_rev >= 0x40000) && (ip_rev < 0x40400))
+               ddr->debug[2] |= 0x00000200;    /* set bit 22 */
+#endif
+
        return check_fsl_memctl_config_regs(ddr);
 }