imx: imx8mm-beacon: Move environment definition to env file

Instead of cluttering up a header file with a bunch of defines,
move the default environmental variables to a file called
imx8mm_beacon.env and reference it from the defconfig.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/board/beacon/imx8mm/imx8mm_beacon.env b/board/beacon/imx8mm/imx8mm_beacon.env
new file mode 100644
index 0000000..00bf67e
--- /dev/null
+++ b/board/beacon/imx8mm/imx8mm_beacon.env
@@ -0,0 +1,19 @@
+boot_fit=try
+bootscript=echo Running bootscript from mmc ...; source
+console=ttymxc1
+fdt_addr=0x45000000
+fdt_file=imx8mm-beacon-kit.dtb
+finduuid=part uuid mmc ${mmcdev}:2 uuid
+image=Image
+initrd_addr=0x46000000
+loadbootscript=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};
+loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}
+loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}
+mmcargs=setenv bootargs console=${console},${baudrate} root=PARTUUID=${uuid} rootwait rw ${mtdparts} ${optargs}
+mmcautodetect=yes
+mmcboot=echo Booting from mmc ...; run finduuid; run mmcargs; if run loadfdt; then booti ${loadaddr} - ${fdt_addr}; else echo WARN: Cannot load the DT; fi;
+netargs=setenv bootargs console=${console},${baudrate} root=/dev/nfs ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp
+mmcdev=1
+mmcpart=1
+netboot=echo Booting from net ...; run netargs;  if test ${ip_dyn} = yes; then setenv get_cmd dhcp; else setenv get_cmd tftp; fi; ${get_cmd} ${loadaddr} ${image}; if test ${boot_fit} = yes || test ${boot_fit} = try; then bootm ${loadaddr}; else if ${get_cmd} ${fdt_addr} ${fdt_file}; then booti ${loadaddr} - ${fdt_addr}; else echo WARN: Cannot load the DT; fi; fi;
+script=boot.scr
diff --git a/configs/imx8mm_beacon_defconfig b/configs/imx8mm_beacon_defconfig
index bb02b9b..52edb2e 100644
--- a/configs/imx8mm_beacon_defconfig
+++ b/configs/imx8mm_beacon_defconfig
@@ -5,6 +5,7 @@
 CONFIG_SPL_GPIO=y
 CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_ENV_SOURCE_FILE="imx8mm_beacon"
 CONFIG_SF_DEFAULT_SPEED=10000000
 CONFIG_ENV_SIZE=0x2000
 CONFIG_ENV_OFFSET=0xFFFFDE00
diff --git a/include/configs/imx8mm_beacon.h b/include/configs/imx8mm_beacon.h
index 6d70957..fa20651 100644
--- a/include/configs/imx8mm_beacon.h
+++ b/include/configs/imx8mm_beacon.h
@@ -28,56 +28,6 @@
 
 #endif
 
-/* Initial environment variables */
-#define CFG_EXTRA_ENV_SETTINGS		\
-	"script=boot.scr\0" \
-	"image=Image\0" \
-	"console=ttymxc1,115200\0" \
-	"fdt_addr=0x43000000\0"			\
-	"boot_fit=try\0" \
-	"fdt_file=" CONFIG_DEFAULT_FDT_FILE "\0" \
-	"initrd_addr=0x43800000\0"		\
-	"mmcdev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \
-	"mmcpart=1\0" \
-	"finduuid=part uuid mmc ${mmcdev}:2 uuid\0" \
-	"mmcautodetect=yes\0" \
-	"mmcargs=setenv bootargs console=${console},${baudrate}" \
-	" root=PARTUUID=${uuid} rootwait rw ${mtdparts} ${optargs}\0" \
-	"loadbootscript=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr}" \
-	" ${script};\0" \
-	"bootscript=echo Running bootscript from mmc ...; " \
-		"source\0" \
-	"loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
-	"loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
-	"mmcboot=echo Booting from mmc ...; " \
-		"run finduuid; " \
-		"run mmcargs; " \
-		"if run loadfdt; then " \
-			"booti ${loadaddr} - ${fdt_addr}; " \
-		"else " \
-			"echo WARN: Cannot load the DT; " \
-		"fi; " \
-	"netargs=setenv bootargs console=${console} " \
-		"root=/dev/nfs " \
-		"ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
-	"netboot=echo Booting from net ...; " \
-		"run netargs;  " \
-		"if test ${ip_dyn} = yes; then " \
-			"setenv get_cmd dhcp; " \
-		"else " \
-			"setenv get_cmd tftp; " \
-		"fi; " \
-		"${get_cmd} ${loadaddr} ${image}; " \
-		"if test ${boot_fit} = yes || test ${boot_fit} = try; then " \
-			"bootm ${loadaddr}; " \
-		"else " \
-			"if ${get_cmd} ${fdt_addr} ${fdt_file}; then " \
-				"booti ${loadaddr} - ${fdt_addr}; " \
-			"else " \
-				"echo WARN: Cannot load the DT; " \
-			"fi; " \
-		"fi;\0"
-
 /* Link Definitions */
 
 #define CFG_SYS_INIT_RAM_ADDR        0x40000000