configs: ti_omap5_common: Add NAND environment settings

Now that NAND is supported on DRA71x include various NAND environment
settings

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

include/environment/ti/nand.h

@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Environment variable definitions for NAND on TI boards.
+ */
+
+#ifdef CONFIG_NAND
+#define NANDARGS \
+	"mtdids=" CONFIG_MTDIDS_DEFAULT "\0" \
+	"mtdparts=" CONFIG_MTDPARTS_DEFAULT "\0" \
+	"nandargs=setenv bootargs console=${console} " \
+		"${optargs} " \
+		"root=${nandroot} " \
+		"rootfstype=${nandrootfstype}\0" \
+	"nandroot=ubi0:rootfs rw ubi.mtd=NAND.file-system,2048\0" \
+	"nandrootfstype=ubifs rootwait=1\0" \
+	"nandboot=echo Booting from nand ...; " \
+		"run nandargs; " \
+		"nand read ${fdtaddr} NAND.u-boot-spl-os; " \
+		"nand read ${loadaddr} NAND.kernel; " \
+		"bootz ${loadaddr} - ${fdtaddr}\0"
+#else
+#define NANDARGS ""
+#endif
+