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      1 # SPDX-License-Identifier: GPL-2.0+
      2 #
      3 # Copyright (C) 2018
      4 # Lukasz Majewski, DENX Software Engineering, lukma (a] denx.de
      5 # This is an example file to generate boot.scr - a boot script for U-Boot
      6 # Generate boot.scr:
      7 # ./tools/mkimage -c none -A arm -T script -d tpcboot.cmd boot.scr
      8 #
      9 
     10 
     11 # Input envs (to be set in environment)
     12 # Mandatory:
     13 # kernel_file = "fitImage"
     14 # boardname = "XXXX"  // set automatically in u-boot
     15 # boardsoc = "imx6q"  // set automatically in u-boot
     16 #
     17 # Optional:
     18 # bootcmd_force = "nfs" "tftp_kernel"
     19 # If not set - eMMC/SD boot
     20 
     21 # Generic setup
     22 setenv mmcroot "/dev/mmcblk${devnum}p2 rootwait rw"
     23 setenv displayargs ""
     24 setenv mmcargs "setenv bootargs console=${console} ${smp} root=${mmcroot} \
     25 	${displayargs}"
     26 setenv miscadj "
     27 if test '${boardsoc}' = 'imx53'; then
     28        setenv bootargs '${bootargs} di=${dig_in} key1=${key1}';
     29 fi;"
     30 setenv boot_fitImage "
     31 	setenv fdt_conf 'conf@${boardsoc}-${boardname}.dtb';
     32 	setenv itbcfg "\"#\${fdt_conf}\"";
     33 	print itbcfg;
     34 	bootm '${loadaddr}${itbcfg}';"
     35 
     36 #------------------------------------------------------------
     37 #
     38 # Provide default 'bootcmd' command
     39 #------------------------------------------------------------
     40 setenv bootcmd "
     41 if test -e ${devtype} ${devnum}:${distro_bootpart} ${kernel_file}; then
     42 	echo Found kernel image: ${kernel_file};
     43 	if load ${devtype} ${devnum}:${distro_bootpart} ${loadaddr} \
     44 	   ${kernel_file}; then
     45 		run mmcargs;
     46 		run miscadj;
     47 		run boot_fitImage;
     48 	fi;
     49 fi;"
     50 
     51 #------------------------------------------------------------
     52 #
     53 # Provide 'boot_tftp_kernel' command
     54 #------------------------------------------------------------
     55 setenv download_kernel "tftpboot ${loadaddr} ${kernel_file}"
     56 
     57 setenv boot_tftp_kernel "
     58 if run download_kernel; then
     59 	run mmcargs;
     60 	run miscadj;
     61 	run boot_fitImage;
     62 fi"
     63 
     64 #------------------------------------------------------------
     65 #
     66 # Provide 'boot_nfs' command
     67 #------------------------------------------------------------
     68 setenv rootpath "/srv/tftp/KP/rootfs"
     69 setenv nfsargs "setenv bootargs root=/dev/nfs rw \
     70        nfsroot=${serverip}:${rootpath},nolock,nfsvers=3"
     71 setenv addip "setenv bootargs ${bootargs} \
     72        ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:\
     73        ${hostname}:eth0:on"
     74 
     75 setenv boot_nfs "
     76 if run download_kernel; then
     77 	run nfsargs;
     78 	run addip;
     79 	setenv bootargs ${bootargs} console=${console};
     80 
     81 	run boot_fitImage;
     82 fi"
     83 
     84 #------------------------------------------------------------
     85 #
     86 # Set correct boot flow
     87 #------------------------------------------------------------
     88 
     89 setenv bcmd "
     90 if test ! -n ${bootcmd_force}; then
     91 	run bootcmd;
     92 fi;
     93 if test ${bootcmd_force} = nfs; then
     94 	run boot_nfs;
     95 else if test ${bootcmd_force} = tftp_kernel; then
     96 	run boot_tftp_kernel;
     97      fi;
     98 fi"
     99 
    100 run bcmd
    101