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authorJames Bottomley <JBottomley@Parallels.com>2013-06-26 23:08:22 -0700
committerJames Bottomley <JBottomley@Parallels.com>2013-06-26 23:08:22 -0700
commita9e94ec3504ead4b87a929bc57f5aa99a6590437 (patch)
treeb6e7aaec0e844dc066e93296a85e5769542ef525 /arch/arm/mach-imx/headsmp.S
parent36a279686bc02d340eb213a9f2a0b67e50de64b4 (diff)
parent2884d4230867c8a46cf701214051e923301e7429 (diff)
Merge tag 'fcoe1' into fixes
This patch fixes a critical bug that was introduced in 3.9 related to VLAN tagging FCoE frames.
Diffstat (limited to 'arch/arm/mach-imx/headsmp.S')
-rw-r--r--arch/arm/mach-imx/headsmp.S12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/headsmp.S b/arch/arm/mach-imx/headsmp.S
index 67b9c48dcaf..627f16f0e9d 100644
--- a/arch/arm/mach-imx/headsmp.S
+++ b/arch/arm/mach-imx/headsmp.S
@@ -18,8 +18,20 @@
.section ".text.head", "ax"
#ifdef CONFIG_SMP
+diag_reg_offset:
+ .word g_diag_reg - .
+
+ .macro set_diag_reg
+ adr r0, diag_reg_offset
+ ldr r1, [r0]
+ add r1, r1, r0 @ r1 = physical &g_diag_reg
+ ldr r0, [r1]
+ mcr p15, 0, r0, c15, c0, 1 @ write diagnostic register
+ .endm
+
ENTRY(v7_secondary_startup)
bl v7_invalidate_l1
+ set_diag_reg
b secondary_startup
ENDPROC(v7_secondary_startup)
#endif