imx: imx93_evk: switch to BOOTSTD

Switch to support BOOTSTD with a bsp bootcmd as fallback.
Move the env to imx93_evk.env

Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/board/freescale/imx93_evk/imx93_evk.env b/board/freescale/imx93_evk/imx93_evk.env
new file mode 100644
index 0000000..f692f42
--- /dev/null
+++ b/board/freescale/imx93_evk/imx93_evk.env
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
+
+boot_targets=mmc0 mmc1
+boot_fit=no
+bootm_size=0x10000000
+cntr_addr=0x98000000
+cntr_file=os_cntr_signed.bin
+console=ttyLP0,115200 earlycon
+fdt_addr_r=0x83000000
+fdt_addr=0x83000000
+fdtfile=CONFIG_DEFAULT_FDT_FILE
+image=Image
+mmcdev=CONFIG_SYS_MMC_ENV_DEV
+mmcpart=1
+mmcroot=/dev/mmcblk1p2 rootwait rw
+mmcautodetect=yes
+mmcargs=setenv bootargs ${jh_clk} ${mcore_clk} console=${console} root=${mmcroot}
+prepare_mcore=setenv mcore_clk clk-imx93.mcore_booted
+loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}
+loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr_r} ${fdtfile}
+loadcntr=fatload mmc ${mmcdev}:${mmcpart} ${cntr_addr} ${cntr_file}
+auth_os=auth_cntr ${cntr_addr}
+sec_boot=no
+boot_os=booti ${loadaddr} - ${fdt_addr_r}
+mmcboot=
+	echo Booting from mmc ...;
+	run mmcargs;
+	if test ${sec_boot} = yes; then
+		if true; then
+			run boot_os;
+		else
+			echo ERR: failed to authenticate;
+		fi;
+	else
+		if run loadfdt; then
+			run boot_os;
+		else
+			echo WARN: Cannot load the DT;
+		fi;
+	fi;
+netargs=setenv bootargs ${jh_clk} ${mcore_clk} console=${console} root=/dev/nfs
+	ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp
+netboot=
+	echo Booting from net ...;
+	run netargs;
+	if test ${ip_dyn} = yes; then
+		setenv get_cmd dhcp;
+	else
+		setenv get_cmd tftp;
+	fi;
+	if test ${sec_boot} = yes; then
+		${get_cmd} ${cntr_addr} ${cntr_file};
+		if true; then
+			run boot_os;
+		else
+			echo ERR: failed to authenticate;
+		fi;
+	else
+		${get_cmd} ${loadaddr} ${image};
+		if ${get_cmd} ${fdt_addr_r} ${fdtfile}; then
+			run boot_os;
+		else
+			echo WARN: Cannot load the DT;
+		fi;
+	fi;
+bsp_bootcmd=
+	echo Running BSP bootcmd ...;
+	mmc dev ${mmcdev};
+	if mmc rescan; then
+		if run loadbootscript; then
+			run bootscript;
+		else
+			if test ${sec_boot} = yes; then
+				if run loadcntr; then
+					run mmcboot;
+				else
+					run netboot;
+				fi;
+			else
+				if run loadimage; then
+					run mmcboot;
+				else
+					run netboot;
+				fi;
+			fi;
+		fi;
+	fi;
+scriptaddr=0x83500000