ARM: mvebu: armada-xp-linksys-mamba: Disable internal RTC

The Mamba (like the OpenBlocks AX3) doesn't have a crystal
connected to the internal RTC - let's prevent the kernel from
probing it.

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Cc: <stable@vger.kernel.org> # v4.0 +
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

diff --git a/arch/arm/boot/dts/armada-xp-linksys-mamba.dts b/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
index a2cf2154dcdb68d8374c2bea4b136fccaccb7aa2..fdd187c55aa5f78b5ab61d15dc12c1ad001990d2 100644 (file)
--- a/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
+++ b/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
@@ -95,6 +95,11 @@
 
                internal-regs {
 
+                       rtc@10300 {
+                               /* No crystal connected to the internal RTC */
+                               status = "disabled";
+                       };
+
                        /* J10: VCC, NC, RX, NC, TX, GND  */
                        serial@12000 {
                                status = "okay";