mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-08 14:14:32 +00:00
a3a0bc85c0
CPU: Freescale i.MX6ULL rev1.1 792 MHz (running at 396 MHz) CPU: Industrial temperature grade (-40C to 105C) at 49C Reset cause: POR Model: Seeed NPi iMX6ULL Dev Board with NAND Board: Seeed NPi i.MX6ULL Dev Board DRAM: 512 MiB NAND: 512 MiB MMC: FSL_SDHC: 0 In: serial@2020000 Out: serial@2020000 Err: serial@2020000 Net: FEC0 Working: - Eth0 - MMC/SD - NAND - UART 1 - USB host Signed-off-by: Navin Sankar Velliangiri <navin@linumiz.com> Note: Changes in v2: * removed unnecessary space in imx6ull-seeed-npi-imx6ull-dev-board.dts file. * Used SZ_2M for CONFIG_SYS_MALLOC_LEN size allocation.
61 lines
1.5 KiB
Text
61 lines
1.5 KiB
Text
How to use U-BOOT on SeeedStudio NPI-IMX6ULL Single Board Computer
|
|
------------------------------------------------------------------
|
|
|
|
- Configure and build U-Boot for NPI-IMX6ULL:
|
|
|
|
$ export ARCH=arm
|
|
$ export CROSS_COMPILE=arm-none-linux-gnueabihf-
|
|
$ make seeed_npi_imx6ull_defconfig
|
|
$ make
|
|
|
|
This will generate SPL and u-boot-dtb.img images.
|
|
|
|
Boot from MMC/SD:
|
|
- The SPL and u-boot-dtb.img images need to be flashed into the micro SD card:
|
|
|
|
$ sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync
|
|
$ sudo dd if=u-boot-dtb.img of=/dev/mmcblk0 bs=1k seek=69; sync
|
|
|
|
- Boot mode settings:
|
|
|
|
Boot switch position: SW1 -> 0
|
|
SW2 -> 1
|
|
SW3 -> 0
|
|
SW4 -> 0
|
|
SW5 -> 1
|
|
SW6 -> 0
|
|
SW7 -> 0
|
|
SW8 -> 1
|
|
|
|
Boot from NAND:
|
|
- Boot the board using SD/MMC or Serial download and load the SPL into memory
|
|
either from SD/MMC or TFTP.
|
|
|
|
Default MTD layout is 512k(spl),1m(uboot),1m(uboot-dup),-(ubi)
|
|
|
|
Flash SPL to NAND from SD/MMC,
|
|
|
|
$ ext4load mmc 0:2 $loadaddr SPL
|
|
$ nand erase.part spl
|
|
$ nandbcb init $loadaddr 0x0 $filesize
|
|
|
|
Flash u-boot image to NAND from SD/MMC,
|
|
|
|
$ ext4load mmc 0:2 $loadaddr u-boot-dtb.img
|
|
$ nand erase.part uboot
|
|
$ nand write $loadaddr uboot $filesize
|
|
|
|
- Boot mode settings:
|
|
|
|
Boot switch position: SW1 -> 0
|
|
SW2 -> 1
|
|
SW3 -> 1
|
|
SW4 -> 0
|
|
SW5 -> 0
|
|
SW6 -> 1
|
|
SW7 -> 0
|
|
SW8 -> 0
|
|
|
|
- Connect the Serial cable to UART0 and the PC for the console.
|
|
|
|
- Reset the board using reset button and U-Boot should boot from NAND.
|