1d67b0d97SEric Nelsonsetenv stdout serial,vga 2d67b0d97SEric Nelsonecho "check U-Boot" ; 3d67b0d97SEric Nelsonsetenv offset 0x400 4d67b0d97SEric Nelsonif ${fs}load ${dtype} ${disk}:1 12000000 u-boot.imx || ${fs}load ${dtype} ${disk}:1 12000000 u-boot.nopadding ; then 5d67b0d97SEric Nelson echo "read $filesize bytes from SD card" ; 6d67b0d97SEric Nelson if sf probe || sf probe || \ 7d67b0d97SEric Nelson sf probe 1 27000000 || sf probe 1 27000000 ; then 8d67b0d97SEric Nelson echo "probed SPI ROM" ; 9d67b0d97SEric Nelson if sf read 0x12400000 $offset $filesize ; then 10d67b0d97SEric Nelson if cmp.b 0x12000000 0x12400000 $filesize ; then 11d67b0d97SEric Nelson echo "------- U-Boot versions match" ; 12d67b0d97SEric Nelson else 13d67b0d97SEric Nelson echo "Need U-Boot upgrade" ; 14d67b0d97SEric Nelson echo "Program in 5 seconds" ; 15d67b0d97SEric Nelson for n in 5 4 3 2 1 ; do 16d67b0d97SEric Nelson echo $n ; 17d67b0d97SEric Nelson sleep 1 ; 18d67b0d97SEric Nelson done 19d67b0d97SEric Nelson echo "erasing" ; 20*8f8b8949SEric Nelson sf erase 0 0xC0000 ; 21d67b0d97SEric Nelson # two steps to prevent bricking 22d67b0d97SEric Nelson echo "programming" ; 23d67b0d97SEric Nelson sf write 0x12000000 $offset $filesize ; 24d67b0d97SEric Nelson echo "verifying" ; 25d67b0d97SEric Nelson if sf read 0x12400000 $offset $filesize ; then 26d67b0d97SEric Nelson if cmp.b 0x12000000 0x12400000 $filesize ; then 27d67b0d97SEric Nelson while echo "---- U-Boot upgraded. reset" ; do 28d67b0d97SEric Nelson sleep 120 29d67b0d97SEric Nelson done 30d67b0d97SEric Nelson else 31d67b0d97SEric Nelson echo "Read verification error" ; 32d67b0d97SEric Nelson fi 33d67b0d97SEric Nelson else 34d67b0d97SEric Nelson echo "Error re-reading EEPROM" ; 35d67b0d97SEric Nelson fi 36d67b0d97SEric Nelson fi 37d67b0d97SEric Nelson else 38d67b0d97SEric Nelson echo "Error reading boot loader from EEPROM" ; 39d67b0d97SEric Nelson fi 40d67b0d97SEric Nelson else 41d67b0d97SEric Nelson echo "Error initializing EEPROM" ; 42d67b0d97SEric Nelson fi ; 43d67b0d97SEric Nelsonelse 44d67b0d97SEric Nelson echo "No U-Boot image found on SD card" ; 45d67b0d97SEric Nelsonfi 46