x86: Add a dtsi file for the pc speaker

The pc speaker driven by the i8254 is generic enough to deserve
a single dtsi file to be included by boards that use it.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/x86/dts/pcspkr.dtsi b/arch/x86/dts/pcspkr.dtsi
new file mode 100644 (file)
index 0000000..934ab10
--- /dev/null
+++ b/arch/x86/dts/pcspkr.dtsi
@@ -0,0 +1,5 @@
+/ {
+       pcspkr {
+               compatible = "i8254,beeper";
+       };
+};