[PATCH 04/11] ARM: ensure irqs are disabled

[vj]

Signed-off-by: vj <vicencb at gmail.com>
---
 arch/arm/cpu/cpu.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/cpu/cpu.c b/arch/arm/cpu/cpu.c
index 87ba877..45c3a90 100644
--- a/arch/arm/cpu/cpu.c
+++ b/arch/arm/cpu/cpu.c
@@ -85,6 +85,12 @@ void arch_shutdown(void)
 		: "r0", "r1", "r2", "r3", "r6", "r10", "r12", "lr", "cc", "memory"
 	);
 #endif
+	/*
+	 * barebox normally does not use interrupts, but some functionalities
+	 * (eg. OMAP4_USBBOOT) require them enabled. So be sure interrupts are
+	 * disabled before exiting.
+	 */
+	__asm__ __volatile__ ("cpsid i\n");
 }
 
 #ifdef CONFIG_THUMB2_BAREBOX
-- 
1.7.12.2