ramips: split base-files into subtargets

While most of the target's contents are split into subtargets, the
base-files are maintained for the target as a whole.

However, OpenWrt already implements a mechanism that will use (and
even prefer) files in the subtargets' directories. This can be
exploited to make several scripts subtarget-specific and thus save
some space.

In certain cases, keeping files in parent (=target) base-files was
more convenient, and thus no splitting was performed for those.

Note that this will increase overall code lines, but reduce code
per subtarget.

base-files ipk size reduction:
master (mt7621)   60958 B
split (mt7620)    46358 B (- 14.3 kiB)
split (mt7621)    48759 B (- 11.9 kiB)
split (mt76x8)    44948 B (- 15.6 kiB)
split (rt288x)    43508 B (- 17.0 kiB)
split (rt305x)    45616 B (- 15.0 kiB)
split (rt3883)    44176 B (- 16.4 kiB)

Run-tested on:
GL.iNet GL-MT300N-V2 (mt76x8)
D-Link DWR-116 (mt7620)

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

3 files changed, 0 insertions, 188 deletions

diff --git a/target/linux/ramips/base-files/lib/preinit/04_handle_checksumming b/target/linux/ramips/base-files/lib/preinit/04_handle_checksumming
deleted file mode 100644
index 8f741faf9d..0000000000
--- a/target/linux/ramips/base-files/lib/preinit/04_handle_checksumming
+++ /dev/null
@@ -1,56 +0,0 @@
-#!/bin/sh
-
-# Netgear WNCE2001 has does a checksum check on boot and goes into recovery
-# tftp mode when the check fails.  Initializing the JFFS2 partition triggers
-# this, so we make sure to zero checksum and size to be checksummed before
-# that happens, so this needs to run very early during boot.
-
-do_checksumming_disable() {
-	. /lib/functions.sh
-
-	local board=$(board_name)
-
-	case "$board" in
-	netgear,wnce2001)
-		echo "Board is WNCE2001, updating checksum partition..."
-		local zeroes=/dev/zero
-		local tmpfile=/tmp/wnce2001_checksum
-		local partname=checksum
-		local mtd=$(find_mtd_part $partname)
-		dd if=$mtd of=$tmpfile bs=80 count=1 2>/dev/null
-		signature=$(dd if=$tmpfile bs=1 skip=24 count=20 2>/dev/null)
-		checksum=$(dd if=$tmpfile bs=1 count=4 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"')
-		if [ "$signature" != "RT3052-AP-WNCE2001-3" ]; then
-			echo "Signature of checksum partition is wrong, bailing."
-			return 0
-		fi
-		if [ "$checksum" != "00000000" ]; then
-			echo "Checksum is set, zeroing."
-			# zero out checksum
-			dd if=$zeroes of=$tmpfile conv=notrunc bs=1 seek=0 count=4 2>/dev/null
-			# zero out bytecount to be checksummed
-			dd if=$zeroes of=$tmpfile conv=notrunc bs=1 seek=60 count=4 2>/dev/null
-			mtd write $tmpfile $partname
-		else
-			echo "Checksum is already zero, nothing to do."
-		fi
-	;;
-	asus,rt-n56u)
-		echo "Board is ASUS RT-N56U, replacing uImage header..."
-		local firmware_mtd=$(find_mtd_part firmware)
-		local rootfs_mtd=$(find_mtd_part rootfs)
-		local rootfs_data_mtd=$(find_mtd_part rootfs_data)
-		local rootfs_len=$(grep \"rootfs\" /proc/mtd | awk -F' ' '{print "0x"$2}')
-		local rootfs_data_len=$(grep \"rootfs_data\" /proc/mtd | awk -F' ' '{print "0x"$2}')
-		local offset=$(echo "$rootfs_len $rootfs_data_len 0x40" | awk -F' ' '{printf "%i",$1-$2-$3}')
-		local signature=$(dd if=$rootfs_mtd skip=$offset bs=1 count=4 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"')
-		if [ "$signature" = "27051956" ]; then
-			dd conv=notrunc if=$rootfs_mtd skip=$offset of=$firmware_mtd bs=1 count=64 2>/dev/null
-		fi
-	;;
-	esac
-
-	return 0
-}
-
-boot_hook_add preinit_main do_checksumming_disable
diff --git a/target/linux/ramips/base-files/lib/upgrade/platform.sh b/target/linux/ramips/base-files/lib/upgrade/platform.sh
deleted file mode 100755
index 03e994dfa4..0000000000
--- a/target/linux/ramips/base-files/lib/upgrade/platform.sh
+++ /dev/null
@@ -1,54 +0,0 @@
-#
-# Copyright (C) 2010 OpenWrt.org
-#
-
-PART_NAME=firmware
-REQUIRE_IMAGE_METADATA=1
-
-platform_check_image() {
-	return 0
-}
-
-platform_do_upgrade() {
-	local board=$(board_name)
-
-	case "$board" in
-	mikrotik,rb750gr3|\
-	mikrotik,rbm11g|\
-	mikrotik,rbm33g)
-		[ -z "$(rootfs_type)" ] && mtd erase firmware
-		;;
-	asus,rt-ac65p|\
-	asus,rt-ac85p)
-		echo "Backing up firmware"
-		dd if=/dev/mtd4 bs=1024 count=4096  > /tmp/backup_firmware.bin
-		dd if=/dev/mtd5 bs=1024 count=52224 >> /tmp/backup_firmware.bin
-		mtd -e firmware2 write /tmp/backup_firmware.bin firmware2
-		;;
-	esac
-
-	case "$board" in
-	asus,rt-ac65p|\
-	asus,rt-ac85p|\
-	hiwifi,hc5962|\
-	netgear,r6220|\
-	netgear,r6260|\
-	netgear,r6350|\
-	netgear,r6850|\
-	xiaomi,mir3g|\
-	xiaomi,mir3p)
-		nand_do_upgrade "$1"
-		;;
-	tplink,archer-c50-v4)
-		MTD_ARGS="-t romfile"
-		default_do_upgrade "$1"
-		;;
-	ubiquiti,edgerouterx|\
-	ubiquiti,edgerouterx-sfp)
-		platform_upgrade_ubnt_erx "$1"
-		;;
-	*)
-		default_do_upgrade "$1"
-		;;
-	esac
-}
diff --git a/target/linux/ramips/base-files/lib/upgrade/ubnt.sh b/target/linux/ramips/base-files/lib/upgrade/ubnt.sh
deleted file mode 100644
index 748ec8e628..0000000000
--- a/target/linux/ramips/base-files/lib/upgrade/ubnt.sh
+++ /dev/null
@@ -1,78 +0,0 @@
-#
-# Copyright (C) 2015 OpenWrt.org
-#
-
-. /lib/functions.sh
-#Note: this code also uses some functions from nand.sh, but it is expected to be run by nand.sh, so we are not
-#sourcing it explicitly here
-
-UBNT_ERX_KERNEL_INDEX_OFFSET=160
-
-ubnt_get_target_kernel() {
-	local factory_mtd=$1
-	local current_kernel_index=$(hexdump -s $UBNT_ERX_KERNEL_INDEX_OFFSET -n 1 -e '/1 "%X "' ${factory_mtd})
-
-	if [ $current_kernel_index == "0" ]; then
-		echo 'kernel2'
-	elif [ $current_kernel_index == "1" ]; then
-		echo 'kernel1'
-	fi
-}
-
-ubnt_update_target_kernel() {
-	local factory_mtd=$1
-	local kernel_part=$2
-
-	local new_kernel_index
-	if [ $kernel_part == "kernel1" ]; then
-		new_kernel_index="\x00"
-	elif [ $kernel_part == "kernel2" ]; then
-		new_kernel_index="\x01"
-	else
-		echo 'Unknown kernel image index' >&2
-		return 1
-	fi
-
-	if ! (echo -e $new_kernel_index | dd of=${factory_mtd} bs=1 count=1 seek=$UBNT_ERX_KERNEL_INDEX_OFFSET); then
-		echo 'Failed to update kernel bootup index' >&2
-		return 1
-	fi
-}
-
-platform_upgrade_ubnt_erx() {
-	local factory_mtd=$(find_mtd_part factory)
-	if [ -z "$factory_mtd" ]; then
-		echo "cannot find factory partition" >&2
-		exit 1
-	fi
-
-	local kernel_part="$(ubnt_get_target_kernel ${factory_mtd})"
-	if [ -z "$kernel_part" ]; then
-		echo "cannot find factory partition" >&2
-		exit 1
-	fi
-
-	# This is a global defined in nand.sh, sets partition kernel will be flashed into
-	CI_KERNPART=${kernel_part}
-
-	#Remove volume possibly left over from stock firmware
-	local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
-	if [ -z "$ubidev" ]; then
-		local mtdnum="$( find_mtd_index "$CI_UBIPART" )"
-		if [ -z "$mtdnum" ]; then
-			echo "cannot find ubi mtd partition $CI_UBIPART" >&2
-			exit 1
-		fi
-		ubiattach -m "$mtdnum"
-		sync
-		ubidev="$( nand_find_ubi "$CI_UBIPART" )"
-	fi
-	if [ -n "$ubidev" ]; then
-		local troot_ubivol="$( nand_find_volume $ubidev troot )"
-		[ -n "$troot_ubivol" ] && ubirmvol /dev/$ubidev -N troot || true
-	fi
-
-	ubnt_update_target_kernel ${factory_mtd} ${kernel_part} || exit 1
-
-	nand_do_upgrade "$1"
-}