Add support for NSLU2 devices on arm but don't activate it yet.

r34023

build/config/arm.cfg

@@ -1,4 +1,4 @@
-SUBARCH_SUPPORTED = netwinder bast lart riscpc riscstation ads
+SUBARCH_SUPPORTED = netwinder bast lart riscpc riscstation ads # nslu2
 
 KERNELMAJOR = 2.4
 KERNELMINOR = 27

build/config/arm/nslu2.cfg

@@ -0,0 +1,7 @@
+MEDIUM_SUPPORTED = netboot
+
+KERNELVERSION := $(KERNELVERSION_2.6)-nslu2
+KERNELMAJOR = 2.6
+
+INITRD_FS = cramfs
+

build/config/arm/nslu2/netboot.cfg

@@ -0,0 +1,23 @@
+MEDIA_TYPE = netboot image
+
+TARGET = swap_initrd fix_swap_kernel
+EXTRANAME = $(MEDIUM)/
+
+MANIFEST-INITRD = "netboot initrd"
+MANIFEST-KERNEL = "kernel image to netboot"
+
+# byteswap the initrd
+swap_initrd: $(INITRD)
+	util/arm/nslu2/pad-initrd $(TEMP)
+	devio "<<"$(TEMP)/initrd.gz > $(SOME_DEST)/$(EXTRANAME)initrd.gz \
+	    'xp $$,4'
+
+# fix the system id and byteswap the kernel
+fix_swap_kernel: $(KERNEL)
+	devio "<<"$(TEMP)/$(KERNELNAME) > $(SOME_DEST)/$(EXTRANAME)$(KERNELNAME) \
+	    'wb 0xe3a01c02,4' 'wb 0xe3811055,4' \
+	    'wb 0xee110f10,4' \
+	    'wb 0xe3c00080,4' \
+	    'wb 0xee010f10,4' \
+	    'xp $$,4'
+

build/pkg-lists/netboot/arm/nslu2.cfg

@@ -0,0 +1,5 @@
+#oldsys-preseed
+# In case people want to use a USB NIC instead of the proprietary
+# IXP400 ethernet driver.
+usb-modules-${kernel:Version}
+nic-usb-modules-${kernel:Version}

build/util/arm/nslu2/pad-initrd

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+TEMP=$1
+
+if [ -z "$TEMP" ]; then
+	echo "Usage: "pad-initrd PATH""
+	exit 1
+fi
+
+if [ ! -e $TEMP/initrd.gz ]; then
+	echo "initrd.gz does not exist at $TEMP"
+	exit 1
+fi
+size=$(wc -c $TEMP/initrd.gz | cut -d " " -f 1)
+mod=$(($size % 4))
+pad=$((4 - $mod))
+if [ $pad -gt 0 ]; then
+	tmp=$TEMP/initrd.padding
+	dd if=/dev/zero of=$tmp bs=1 count=$pad
+	cat $tmp >> $TEMP/initrd.gz
+fi
+

debian/changelog

@@ -57,6 +57,7 @@ debian-installer (20051116) UNRELEASED; urgency=low
   [ Martin Michlmayr ]
   * Add initial support for BCM947xx mipsel devices but don't activate it.
   * Add support for 2.6 Netwinder images but don't active it yet.
+  * Add support for NSLU2 devices on arm but don't activate it yet.
 
   [ Joey Hess ]
   * Switch i386 to the 2.6.15-1 kernel.

debian/control

@@ -65,7 +65,7 @@ Build-Depends: debhelper (>= 4), apt, gnupg, dpkg (>= 1.13.9), grep-dctrl, bc, d
 #		Used by cdebconf. Should be a udeb, but isn't.
 #
 # Filesystem tools:
-#	- cramfsprogs [powerpc ia64 mips mipsel]
+#	- cramfsprogs [powerpc ia64 mips mipsel arm]
 #		For arches that use cramfs initrds.
 #	- genext2fs (>= 1.3-7.1)
 #		For creating ext2 filesystems without being root.
@@ -91,6 +91,9 @@ Build-Depends: debhelper (>= 4), apt, gnupg, dpkg (>= 1.13.9), grep-dctrl, bc, d
 #		m68k uses it for atari floppies
 #	- cpio
 #		For creating initramfs images.
+#	- devio [arm]
+#		Tool to read and write from block devices, used to byteswap
+#		kernels.
 #
 # Boot loaders:
 #	On many arches boot loaders are copied onto or ran on the boot