virual cape for /bone/spi/1.0 and /bone/spi/1.1

Author: lorforlinux

src/arm/BONE-SPI1-00A0.dts

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2020 Deepak Khatri <[email protected]>
+ *
+ * Virtual cape for /bone/spi/1.0 & /bone/spi/1.1
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+ 
+/dts-v1/;
+/plugin/;
+
+/*
+* Helper to show loaded overlays under: /proc/device-tree/chosen/overlays/
+*/
+&{/chosen} {
+    overlays {
+        BONE-SPI1-00A0.dts = __TIMESTAMP__;
+    };
+};
+
+/*
+* Free up the pins used by the cape from the pinmux helpers.
+*/
+&ocp {
+    P9_28_pinmux { status = "disabled"; };	/* spi1_cs0 */
+    P9_30_pinmux { status = "disabled"; };	/* spi1_d1 */
+    P9_29_pinmux { status = "disabled"; };	/* spi1_d0 */
+    P9_31_pinmux { status = "disabled"; };	/* spi1_sclk */
+    P9_42_pinmux { status = "disabled"; };  /* spi1_cs1 */
+};
+
+&bone_spi_1 {
+    // See these files for the definition
+    // https://github.com/beagleboard/BeagleBoard-DeviceTrees/src/arm/bbai-bone-buses.dtsi
+    // https://github.com/beagleboard/BeagleBoard-DeviceTrees/src/arm/bbb-bone-buses.dtsi
+    status = "okay";
+};