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meta-digi-dey: Add a dey-image-tiny initramfs image. 

To boot from TFTP/NFS you need something like:

    setenv uimage uImage-ccimx6sbc
    setenv initrdimg dey-image-tiny-initramfs-ccimx6sbc.rootfs.initramfs
    setenv fdt_file uImage-imx6q-ccimx6sbc.dtb
    setenv initrdaddr 0x22000000
    setenv bootargs console=ttymxc3,115200 rdinit=/sbin/init
    saveenv

    tftp $loadaddr $uimage
    tftp $initrdaddr $initrdimg
    tftp $fdt_addr $fdt_file

    bootm $loadaddr $initrdaddr $fdt_addr

Signed-off-by: Alex Gonzalez <alex.gonzalez@digi.com>
This commit is contained in:
Alex Gonzalez 2014-11-27 14:28:52 +01:00
parent aef38bc285
commit 0514d03e0e
3 changed files with 23 additions and 1 deletions
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12
meta-digi-dey/recipes-core/images/dey-image-tiny-initramfs.bb Normal file
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#
# Copyright (C) 2014 Digi International.
#
DESCRIPTION = "DEY busybox only based initramfs image."
include dey-image-tiny.bb
export IMAGE_BASENAME = "dey-image-tiny-initramfs"
IMAGE_FSTYPES = "${INITRAMFS_FSTYPES}"
IMAGE_FSTYPES_append = " rootfs.initramfs"

7
meta-digi-dey/recipes-core/initscripts/initscripts-1.0/devtmpfs.sh Normal file
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#!/bin/sh
if grep -q devtmpfs /proc/filesystems; then
# mount the devtmpfs on /dev, if not already done
LANG=C awk '$2 == "/dev" && ($3 == "devtmpfs") { exit 1 }' /proc/mounts && {
mount -n -o mode=0755 -t devtmpfs none "/dev"
}
fi

5
meta-digi-dey/recipes-core/initscripts/initscripts_1.0.bbappend
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@ -2,8 +2,11 @@
FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}-${PV}:"
SRC_URI += "file://device_table.txt"
SRC_URI += "file://device_table.txt \
file://devtmpfs.sh"
do_install_append() {
install -m 755 ${WORKDIR}/devtmpfs.sh ${D}${sysconfdir}/init.d/devtmpfs.sh
update-rc.d -r ${D} devtmpfs.sh start 03 S .
install -m 0755 ${WORKDIR}/device_table.txt ${D}${sysconfdir}/device_table
}