configs/warpboard: Generate an sdcard image
Generate an sdcard.img image to make it easier the deployment of a Buildroot image. [Peter: drop unneeded exit statement in post-image script] Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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@ -9,7 +9,9 @@ Build all components:
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You will find in ./output/images/ the following files:
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- imx6sl-warp.dtb
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- rootfs.ext4
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- rootfs.tar
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- sdcard.img
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- u-boot.imx
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- zImage
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@ -42,14 +44,16 @@ Update uboot
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Update linux & rootfs
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=====================
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Run the 'ums' command from the U-Boot prompt to mount the eMMC as mass
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storage and update zImage, device tree (imx6sl-warp.dtb) and rootfs
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file (rootfs.tar) :
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Run the 'ums' command from the U-Boot prompt to mount the eMMC as USB mass
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storage:
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=> ums 0 mmc 0
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Put the zImage and DTB files in the warp-vfat partition and extract as
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root the rootfs.tar tarball in the warp-rootfs partition.
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And then flash the sdcard.img into the eMMC:
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dd if=output/images/sdcard.img of=/dev/<your-sd-device>
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*** WARNING! This will destroy all the eMMC content. Use it with care! ***
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Using bluetooth
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================
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41
board/freescale/warpboard/genimage.cfg
Normal file
41
board/freescale/warpboard/genimage.cfg
Normal file
@ -0,0 +1,41 @@
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# Minimal SD card image for the Warp board
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#
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# We mimic the .sdcard Freescale's image format for i.MX6SL:
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# * the microSD card must have 1 kB free space at the beginning,
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# * U-Boot is dumped as is,
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# * a FAT partition at offset 8 MB is containing zImage and dtbs,
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# * a single root filesystem partition is required (Ext4 in this case).
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#
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image boot.vfat {
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vfat {
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files = {
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"imx6sl-warp.dtb",
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"zImage"
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}
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}
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size = 16M
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}
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image sdcard.img {
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hdimage {
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}
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partition u-boot {
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in-partition-table = "no"
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image = "u-boot.imx"
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offset = 1024
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}
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partition boot {
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partition-type = 0xC
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bootable = "true"
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image = "boot.vfat"
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offset = 8M
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}
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partition rootfs {
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partition-type = 0x83
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image = "rootfs.ext4"
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}
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}
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14
board/freescale/warpboard/post-image.sh
Executable file
14
board/freescale/warpboard/post-image.sh
Executable file
@ -0,0 +1,14 @@
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#!/usr/bin/env bash
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BOARD_DIR="$(dirname $0)"
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GENIMAGE_CFG="${BOARD_DIR}/genimage.cfg"
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GENIMAGE_TMP="${BUILD_DIR}/genimage.tmp"
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rm -rf "${GENIMAGE_TMP}"
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genimage \
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--rootpath "${TARGET_DIR}" \
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--tmppath "${GENIMAGE_TMP}" \
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--inputpath "${BINARIES_DIR}" \
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--outputpath "${BINARIES_DIR}" \
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--config "${GENIMAGE_CFG}"
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@ -37,3 +37,13 @@ BR2_TARGET_UBOOT_FORMAT_IMX=y
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# host utility
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BR2_PACKAGE_HOST_DFU_UTIL=y
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BR2_PACKAGE_HOST_IMX_USB_LOADER=y
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# Filesystem
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BR2_ROOTFS_POST_IMAGE_SCRIPT="board/freescale/warpboard/post-image.sh"
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BR2_TARGET_ROOTFS_EXT2=y
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BR2_TARGET_ROOTFS_EXT2_4=y
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# required tools to create the eMMC image
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BR2_PACKAGE_HOST_DOSFSTOOLS=y
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BR2_PACKAGE_HOST_GENIMAGE=y
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BR2_PACKAGE_HOST_MTOOLS=y
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