[PATCH 07/11] add a generic default environment

[Marc Kleine-Budde]

Uwe Kleine-König wrote:
> Hello Sascha,
> 
>> diff --git a/defaultenv/bin/boot b/defaultenv/bin/boot
>> new file mode 100644
>> index 0000000..8c300a3
>> --- /dev/null
>> +++ b/defaultenv/bin/boot
>> @@ -0,0 +1,110 @@
>> +#!/bin/sh
>> +
>> +. /env/config
>> +
>> +if [ x$1 = xnand ]; then
>> +	rootfs_loc=nand
>> +	kernel_loc=nand
>> +elif [ x$1 = xnor ]; then
>> +	rootfs_loc=nor
>> +	kernel_loc=nor
>> +elif [ x$1 = xnet ]; then
>> +	rootfs_loc=net
>> +	kernel_loc=net
>> +fi
> case "$1" in
> nand|nor|net)
> 	rootfs_loc=$1;
> 	kernel_loc=$1;
> 	;;
> esac

AFAIK, the barebox shell doesn't support case.

> 
>> +
>> +
>> +if [ x$ip = xdhcp ]; then
>> +	bootargs="$bootargs ip=dhcp"
>> +elif [ x$ip = xnone ]; then
>> +	bootargs="ip=none"
>> +else
>> +	bootargs="$bootargs ip=$eth0.ipaddr::$eth0.gateway:$eth0.netmask:::"
>> +fi
>> +
>> +
>> +if [ $rootfs_loc = net ]; then
> "x$rootfs_loc" = "xnet"
> 
>> +	bootargs="$bootargs root=/dev/nfs nfsroot=$nfsroot,v3,tcp noinitrd"
>> +elif [ $rootfs_loc = initrd ]; then
>> +	bootargs="$bootargs root=/dev/ram0 rdinit=/sbin/init"
> Wouldn't it be nice to load the initrd into /dev/ram0, too?

at least for ARM barebox only supports initrd compiled into the kernel,
thus there's no need to load the inird explicitly.

> 
>> +else
>> +	if [ x$rootfs_loc = xnand ]; then
>> +		rootfs_mtdblock=$rootfs_mtdblock_nand
>> +	else
>> +		rootfs_mtdblock=$rootfs_mtdblock_nor
>> +	fi
>> +
>> +	if [ $rootfs_type = ubifs ]; then
>> +		bootargs="$bootargs root=ubi0:root ubi.mtd=$rootfs_mtdblock"
>> +	else
>> +		bootargs="$bootargs root=/dev/mtdblock$rootfs_mtdblock"
>> +	fi
>> +
>> +	bootargs="$bootargs rootfstype=$rootfs_type noinitrd"
>> +fi
>> +
>> +if [ -n $nor_parts ]; then
>> +	mtdparts="${mtdparts}physmap-flash.o:${nor_parts};"
>> +fi
>> +
>> +if [ -n $nand_parts ]; then
>> +	mtdparts="${mtdparts}$nand_device:${nor_parts};"
>> +fi
>> +
>> +if [ -n $mtdparts ]; then
>> +	bootargs="${bootargs} mtdparts=\"${mtdparts}\""
>> +fi
>> +
>> +if [ ! -e /dev/ram0.kernelraw ]; then
>> +	# arm raw kernel images are usually located at sdram start + 0x8000
>> +	addpart dev/ram0 8M at 0x8000(kernelraw)
>> +fi
>> +
>> +if [ ! -e /dev/ram0.kernel ]; then
>> +	# Here we can safely put the kernel without risking of overwriting it
>> +	# while extracting
>> +	addpart dev/ram0 8M(kernel)
>> +fi
>> +
>> +if [ $kernel_loc = net ]; then
>> +	if [ x$ip = xdhcp ]; then
>> +		dhcp
>> +	fi
>> +	if [ $kernelimage_type = uimage ]; then
>> +		netload="/dev/ram0.kernel"
>> +	elif [ $kernelimage_type = zimage ]; then
>> +		netload="/dev/ram0.kernel"
>> +	elif [ $kernelimage_type = raw ]; then
>> +		netload="/dev/ram0.kernelraw"
>> +	elif [ $kernelimage_type = raw_lzo ]; then
>> +		netload="/dev/ram0.kernel"
>> +	else
>> +		echo "error: missing kernel_image_type"
>> +		exit 1
>> +	fi
>> +	tftp $kernelimage $netload || exit 1
>> +	kdev="$netload"
>> +elif [ $kernel_loc = nor ]; then
>> +	kdev="/dev/nor0.kernel"
>> +elif [ $kernel_loc = nand ]; then
>> +	kdev="/dev/nand0.kernel.bb"
>> +else
>> +	echo "error: missing kernel_loc"
>> +	exit 1
>> +fi
>> +
>> +if [ $kernelimage_type = uimage ]; then
>> +	bootm $kdev
>> +elif [ $kernelimage_type = zimage ]; then
>> +	bootz $kdev
>> +elif [ $kernelimage_type = raw ]; then
>> +	if [ $kernel_loc != net ]; then
>> +		ec
> maybe better spell that out?
> 
>> +		cp $kdev /dev/ram0.kernelraw
>> +	fi
>> +	bootu /dev/ram0.kernelraw
>> +elif [ $kernelimage_type = raw_lzo ]; then
>> +	unlzo $kdev /dev/ram0.kernelraw
>> +	bootu /dev/ram0.kernelraw
>> +fi
>> +
> trailing new line
> 
> Best regards
> Uwe
> 

cheers, Marc

-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |

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