Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

[firefly-linux-kernel-4.4.55.git] / arch / arm / boot / dts / omap3-n900.dts

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 2cab149b191ce69b16e03013e6ef14b94a7469a1..a29315833ecd3bfc1f1a7f86f7f3c5734453a00f 100644 (file)
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -9,9 +9,23 @@
 
 /dts-v1/;
 
-#include "omap34xx-hs.dtsi"
+#include "omap34xx.dtsi"
 #include <dt-bindings/input/input.h>
 
+/*
+ * Default secure signed bootloader (Nokia X-Loader) does not enable L3 firewall
+ * for omap AES HW crypto support. When linux kernel try to access memory of AES
+ * blocks then kernel receive "Unhandled fault: external abort on non-linefetch"
+ * and crash. Until somebody fix omap-aes.c and omap_hwmod_3xxx_data.c code (no
+ * crash anymore) omap AES support will be disabled for all Nokia N900 devices.
+ * There is "unofficial" version of bootloader which enables AES in L3 firewall
+ * but it is not widely used and to prevent kernel crash rather AES is disabled.
+ * There is also no runtime detection code if AES is disabled in L3 firewall...
+ */
+&aes {
+       status = "disabled";
+};
+
 / {
        model = "Nokia N900";
        compatible = "nokia,omap3-n900", "ti,omap3430", "ti,omap3";