include: configs: am64x_evm: Change to using .env

Move to using .env file for setting up environment variables for am64x.

Signed-off-by: Nikhil M Jain <n-jain1@ti.com>
Reviewed-by: Devarsh Thakkar <devarsht@ti.com>
diff --git a/board/ti/am64x/am64x.env b/board/ti/am64x/am64x.env
new file mode 100644
index 0000000..c3960be
--- /dev/null
+++ b/board/ti/am64x/am64x.env
@@ -0,0 +1,63 @@
+#include <environment/ti/ti_armv7_common.env>
+#include <environment/ti/mmc.env>
+#include <environment/ti/k3_dfu.env>
+
+findfdt=
+	if test $board_name = am64x_gpevm; then
+		setenv name_fdt k3-am642-evm.dtb; fi;
+	if test $board_name = am64x_skevm; then
+		setenv name_fdt k3-am642-sk.dtb; fi;
+	if test $name_fdt = undefined; then
+		echo WARNING: Could not determine device tree to use; fi;
+name_kern=Image
+console=ttyS2,115200n8
+args_all=setenv optargs earlycon=ns16550a,mmio32,0x02800000 ${mtdparts}
+run_kern=booti ${loadaddr} ${rd_spec} ${fdtaddr}
+
+boot=mmc
+mmcdev=1
+bootpart=1:2
+bootdir=/boot
+rd_spec=-
+init_mmc=run args_all args_mmc
+get_fdt_mmc=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${name_fdt}
+get_overlay_mmc=
+	fdt address ${fdtaddr};
+	fdt resize 0x100000;
+	for overlay in $name_overlays;
+	do;
+	load mmc ${bootpart} ${dtboaddr} ${bootdir}/${overlay} &&
+	fdt apply ${dtboaddr};
+	done;
+get_kern_mmc=load mmc ${bootpart} ${loadaddr}
+	${bootdir}/${name_kern}
+get_fit_mmc=load mmc ${bootpart} ${addr_fit}
+	${bootdir}/${name_fit}
+partitions=name=rootfs,start=0,size=-,uuid=${uuid_gpt_rootfs}
+
+args_usb=run finduuid;setenv bootargs console=${console}
+	${optargs}
+	root=PARTUUID=${uuid} rw
+	rootfstype=${mmcrootfstype}
+init_usb=run args_all args_usb
+get_fdt_usb=load usb ${bootpart} ${fdtaddr} ${bootdir}/${name_fdt}
+get_overlay_usb=
+	fdt address ${fdtaddr};
+	fdt resize 0x100000;
+	for overlay in $name_overlays;
+	do;
+	load usb ${bootpart} ${dtboaddr} ${bootdir}/${overlay} && fdt apply
+	${dtboaddr};
+	done;
+get_kern_usb=load usb ${bootpart} ${loadaddr}
+	${bootdir}/${name_kern}
+get_fit_usb=load usb ${bootpart} ${addr_fit}
+	${bootdir}/${name_fit}
+usbboot=setenv boot usb;
+	setenv bootpart 0:2;
+	usb start;
+	run findfdt;
+	run init_usb;
+	run get_kern_usb;
+	run get_fdt_usb;
+	run run_kern;