powerpc/sec: Add workaround for SEC A-003571
Multiple read/write transactions initiated by security
engine may cause system to hang.
Workaround: set MCFGR[AXIPIPE] to 0 to avoid hang.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Acked-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 cbb443f..8a2a3ee 100644
--- a/arch/powerpc/cpu/mpc85xx/cmd_errata.c
+++ b/arch/powerpc/cpu/mpc85xx/cmd_errata.c
@@ -245,6 +245,10 @@
#ifdef CONFIG_SYS_FSL_ERRATUM_A006593
puts("Work-around for Erratum A006593 enabled\n");
#endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_SEC_A003571
+ if (IS_SVR_REV(svr, 1, 0))
+ puts("Work-around for Erratum A003571 enabled\n");
+#endif
#ifdef CONFIG_SYS_FSL_ERRATUM_A005812
puts("Work-around for Erratum A-005812 enabled\n");
#endif
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c
index c6e09ca..6036333 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu_init.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu_init.c
@@ -357,7 +357,9 @@
extern int spin_table_compat;
const char *spin;
#endif
-
+#ifdef CONFIG_SYS_FSL_ERRATUM_SEC_A003571
+ ccsr_sec_t __iomem *sec = (void *)CONFIG_SYS_FSL_SEC_ADDR;
+#endif
#if defined(CONFIG_SYS_P4080_ERRATUM_CPU22) || \
defined(CONFIG_SYS_FSL_ERRATUM_NMG_CPU_A011)
/*
@@ -548,6 +550,12 @@
fsl_serdes_init();
#endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_SEC_A003571
+#define MCFGR_AXIPIPE 0x000000f0
+ if (IS_SVR_REV(svr, 1, 0))
+ clrbits_be32(&sec->mcfgr, MCFGR_AXIPIPE);
+#endif
+
#ifdef CONFIG_SYS_FSL_ERRATUM_A005871
if (IS_SVR_REV(svr, 1, 0)) {
int i;
diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h
index e1fc0f7..d748cb6 100644
--- a/arch/powerpc/include/asm/config_mpc85xx.h
+++ b/arch/powerpc/include/asm/config_mpc85xx.h
@@ -131,6 +131,7 @@
#define CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY
#define CONFIG_SYS_FSL_ERRATUM_IFC_A002769
#define CONFIG_SYS_FSL_ERRATUM_P1010_A003549
+#define CONFIG_SYS_FSL_ERRATUM_SEC_A003571
#define CONFIG_SYS_FSL_ERRATUM_IFC_A003399
/* P1011 is single core version of P1020 */