armv8: Make SEC read/write as snoopable for LS1043

For LS1043, SEC read/writes are made snoopable by setting
the corresponding bits in SCFG to avoid coherency issues.

Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
index a0de4becd1a33cbfec318bf65d6eccca7ceb8a75..8d40405923aa8f4258548c6ef86c67d494682970 100644 (file)
--- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
@@ -161,11 +161,16 @@ void fsl_lsch3_early_init_f(void)
 void fsl_lsch2_early_init_f(void)
 {
        struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;
+       struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
 
 #ifdef CONFIG_FSL_IFC
        init_early_memctl_regs();       /* tighten IFC timing */
 #endif
 
+       /* Make SEC reads and writes snoopable */
+       setbits_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SECRDSNP |
+                    SCFG_SNPCNFGCR_SECWRSNP);
+
        /*
         * Enable snoop requests and DVM message requests for
         * Slave insterface S4 (A53 core cluster)