ARM: imx: imx8mn-evk: change environment address variables

Currently the space between kernel_addr_r and the fdt_addr_r is only 32MB.
To have enough space to load kernel images bigger than 32MB change the
variables to a feasible value.

The new environment variables layout is based on the scheme from
"include/configs/ti_armv7_common.h".

The CONFIG_SYS_LOAD_ADDR value is set to 0x42000000. With that we have
the same value as for the kernel_addr_r.

Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
diff --git a/configs/imx8mn_ddr4_evk_defconfig b/configs/imx8mn_ddr4_evk_defconfig
index 474d9cf..5289790 100644
--- a/configs/imx8mn_ddr4_evk_defconfig
+++ b/configs/imx8mn_ddr4_evk_defconfig
@@ -16,7 +16,7 @@
 CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_SPL=y
 CONFIG_SPL_IMX_ROMAPI_LOADADDR=0x48000000
-CONFIG_SYS_LOAD_ADDR=0x40480000
+CONFIG_SYS_LOAD_ADDR=0x42000000
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_FIT=y
 CONFIG_FIT_EXTERNAL_OFFSET=0x3000
diff --git a/configs/imx8mn_evk_defconfig b/configs/imx8mn_evk_defconfig
index 8ba2bd6..6d64b5e 100644
--- a/configs/imx8mn_evk_defconfig
+++ b/configs/imx8mn_evk_defconfig
@@ -16,7 +16,7 @@
 CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_SPL=y
 CONFIG_SPL_IMX_ROMAPI_LOADADDR=0x48000000
-CONFIG_SYS_LOAD_ADDR=0x40480000
+CONFIG_SYS_LOAD_ADDR=0x42000000
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_FIT=y
 CONFIG_FIT_EXTERNAL_OFFSET=0x3000
diff --git a/include/configs/imx8mn_evk.h b/include/configs/imx8mn_evk.h
index 86b75ab..0341322 100644
--- a/include/configs/imx8mn_evk.h
+++ b/include/configs/imx8mn_evk.h
@@ -39,19 +39,27 @@
 #endif
 
 /* Initial environment variables */
+/* see include/configs/ti_armv7_common.h */
+#define ENV_MEM_LAYOUT_SETTINGS \
+	"loadaddr=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
+	"kernel_addr_r=0x42000000\0" \
+	"fdt_addr_r=0x48000000\0" \
+	"fdtoverlay_addr_r=0x49000000\0" \
+	"ramdisk_addr_r=0x48080000\0" \
+	"initrd_addr=0x48080000\0" \
+	"scriptaddr=0x40000000\0" \
+	"pxefile_addr_r=0x40100000\0"
+
 #define CONFIG_EXTRA_ENV_SETTINGS		\
 	"image=Image\0" \
 	BOOTENV \
-	"scriptaddr=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
-	"kernel_addr_r=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
 	"console=ttymxc1,115200\0" \
-	"fdt_addr_r=0x43000000\0"			\
 	"boot_fit=no\0" \
 	"fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0" \
-	"initrd_addr=0x43800000\0"		\
 	"bootm_size=0x10000000\0" \
 	"mmcpart=1\0" \
 	"mmcroot=/dev/mmcblk1p2 rootwait rw\0" \
+	ENV_MEM_LAYOUT_SETTINGS
 
 /* Link Definitions */