78 lines
2.7 KiB
Plaintext
78 lines
2.7 KiB
Plaintext
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******************** WARNING ********************
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The compiled U-Boot binary is intended for NOR flash only!
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It won't work for NAND or SPI and will brick those bootloaders!
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Also don't go playing around with different U-boot versions or flash targets
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unless you've got the necessary hardware and/or know-how to unbrick your kit.
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2014.01 is known good for NOR on the P1010RDB-PA kit.
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Freescale released a revised version of the kit with a faster processor and
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some other hardware changes named P1010RDB-PB. U-Boot needs to be configured
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differently for this kit hence this default config WILL NOT WORK.
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This is ONLY related to U-Boot, otherwise the configuration is the same,
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you can perfectly use the generated kernel and rootfs.
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IF you want to build an U-Boot for the new kit just change
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BR2_TARGET_UBOOT_BOARDNAME from P1010RDB-PA_NOR to P1010RDB-PB_NOR.
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!!!!! THIS IS COMPLETELY UNTESTED BY BR DEVS SO YOU ARE ON YOUR OWN !!!!!
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If it works we'd like to know so drop an email to the mailing list. Thanks.
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If your kit doesn't mention PA nor PB in their shipping inventory then it's
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the old version (PA).
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******************** WARNING ********************
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You'll need to program the files created by buildroot into the flash.
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The fast way is to tftp transfer the files via one of the network interfaces.
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Alternatively you can transfer the files via serial console with an Ymodem
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file transfer from your terminal program by using a "loady" command
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from the u-boot prompt instead of the "tftp ..." commands stated below.
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Beware that serial console file transfers are quite slow!
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Remember to set the P1010RDB switches to NOR boot if you want to use
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your newly built U-Boot.
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1. Program the new U-Boot binary to NOR flash (optional)
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If you don't feel confident upgrading your bootloader then don't do it,
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it's unnecessary most of the time.
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=> tftp $loadaddr u-boot.bin
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=> protect off 0xeff80000 +$filesize
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=> erase 0xeff80000 +$filesize
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=> cp.b $loadaddr 0xeff80000 $filesize
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2. Program the DTB to NOR flash
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=> tftp $loadaddr p1010rdb-pa.dtb
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=> erase 0xee000000 +$filesize
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=> cp.b $loadaddr 0xee000000 $filesize
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3. Program the kernel to NOR flash
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=> tftp $loadaddr uImage
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=> erase 0xee080000 +$filesize
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=> cp.b $loadaddr 0xee080000 $filesize
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4. Program the root filesystem to NOR flash
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=> tftp $loadaddr rootfs.jffs2
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=> erase 0xee800000 0xeff5ffff
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=> cp.b $loadaddr 0xee800000 $filesize
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5. Booting your new system
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=> setenv norboot 'setenv bootargs root=/dev/mtdblock2 rootfstype=jffs2 console=$consoledev,$baudrate;bootm 0xee080000 - 0xee000000'
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If you want to set this boot option as default:
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=> setenv bootcmd 'run norboot'
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=> saveenv
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...or for a single boot:
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=> run norboot
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You can login with user "root".
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