armv7: psci: cpu_off: flush D-Cache before disable D-Cache

[platform/kernel/u-boot.git] / arch / arm / cpu / armv7 / psci.S

diff --git a/arch/arm/cpu/armv7/psci.S b/arch/arm/cpu/armv7/psci.S
index 6a36208..95b962d 100644 (file)
--- a/arch/arm/cpu/armv7/psci.S
+++ b/arch/arm/cpu/armv7/psci.S
@@ -258,6 +258,10 @@ ENDPROC(psci_enable_smp)
 ENTRY(psci_cpu_off_common)
        push    {lr}
 
+       bl      psci_v7_flush_dcache_all
+
+       clrex                                   @ Why???
+
        mrc     p15, 0, r0, c1, c0, 0           @ SCTLR
        bic     r0, r0, #(1 << 2)               @ Clear C bit
        mcr     p15, 0, r0, c1, c0, 0           @ SCTLR