On Thu, 2012-06-21 at 09:45 +0200, Loïc Minier wrote:
> On Wed, Jun 20, 2012, Ian Campbell wrote:
> > Are you suggesting that I should move the non-flash-kernel related
> > content of /dev/sdb1 (e.g. vmlinuz, initramfs etc) to /dev/sdb2:/boot
> > and remove sdb1 from the fstab, leaving it unmounted the majority of the
> > time?
>
> Exactly; also it should also keep working if you leave your system
> untouched (if you keep /dev/sdb1 in fstab and if f-k tries to mount it
> in /tmp to update boot files, it should just get bind-mounted
> automatically).
Thanks, I just left my partitions as they were in the end and switched
to Boot-Device and everything was fine.
I've also added support for appending a DTB to the kernel and a test
case for detection via /proc/device-tree/model.
> > I'm happy to do that, just want to make sure I understand before I start
> > moving stuff about.
>
> Yup; it's also best if you have some recovery mechanism -- like being
> able to pull the SD card and changing it from another device -- and some
> debug mechanism -- like serial console over mini-USB.
I've got things setup so I can boot from the network (via u-boot) so I'm
pretty good to mess around.
> > It is possible that other DP users will want /dev/sda* (the internal
> > sdcard) instead of /dev/sdb* (the external sdcard). Can I express sda vs
> > sdb in the flash-kernel db somehow?
>
> Ah, yes; that's indeed a problem. That means we need some config file
> to override the boot device (ideally an installer would create this file
> for you). This is currently missing in flash-kernel, but here I think
> it should allow overriding parts of the machine db entry.
That sounds very sensible, I didn't look at that here though. Seems like
it shouldn't be too hard to add to get_machine_field().
3 patches attached. Also pushed to gitorious
Ian.
>From 2f9d5d7e2eee338cc8b65d31ff38b0579f7da3a7 Mon Sep 17 00:00:00 2001
From: Ian Campbell <i...@hellion.org.uk>
Date: Sat, 31 Mar 2012 07:00:54 +0000
Subject: [PATCH 1/3] Use /proc/device-tree/model in preference to
/proc/cpuinfo:Hardware
If a system uses Device Tree then this node will be present and will identify
the actual hardware platform whereas /proc/cpuinfo:Hardware will only identify
the general class of platform.
Add support for "Globalscale Technologies Dreamplug" using this scheme.
---
db/all.db | 10 ++++++++++
debian/changelog | 9 +++++++++
functions | 13 ++++++++++++-
test_functions | 39 ++++++++++++++++++++++++++++++++++++++-
4 files changed, 69 insertions(+), 2 deletions(-)
diff --git a/db/all.db b/db/all.db
index b7f7caa..31246ad 100644
--- a/db/all.db
+++ b/db/all.db
@@ -199,6 +199,16 @@ Boot-Initrd-Path: /boot/uInitrd
Required-Packages: u-boot-tools
Bootloader-sets-root: no
+Machine: Globalscale Technologies Dreamplug
+Kernel-Flavors: kirkwood
+U-Boot-Kernel-Address: 0x00008000
+U-Boot-Initrd-Address: 0x0
+Boot-Device: /dev/sdb1
+Boot-Kernel-Path: uImage
+Boot-Initrd-Path: uInitrd
+Required-Packages: u-boot-tools
+Bootloader-sets-root: no
+
Machine: Marvell GuruPlug Reference Board
Kernel-Flavors: kirkwood
U-Boot-Kernel-Address: 0x00008000
diff --git a/debian/changelog b/debian/changelog
index 01bed30..3b9c842 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,12 @@
+flash-kernel (3.1) unstable; urgency=low
+
+ [ Ian Campbell ]
+ * Add support for FDT based devices using /proc/device-tree/model for
+ detection.
+ * Add support for DreamPlug.
+
+ -- Ian Campbell <i...@hellion.org.uk> Sat, 23 Jun 2012 16:59:12 +0000
+
flash-kernel (3.0) unstable; urgency=low
[ Aurelien Jarno ]
diff --git a/functions b/functions
index bbfa772..82bb09e 100644
--- a/functions
+++ b/functions
@@ -21,6 +21,7 @@
BOOTSCRIPTS_DIR="${FK_CHECKOUT:-$FK_DIR}/bootscript"
MACHINE_DB="$(cat "${FK_CHECKOUT:-$FK_DIR}/db/"*.db)"
PROC_CPUINFO="${FK_PROC_CPUINFO:-/proc/cpuinfo}"
+PROC_DTMODEL="${FK_PROC_DRMODEL:-/proc/device-tree/model}"
PROC_MTD="/proc/mtd"
@@ -94,6 +95,16 @@ check_supported() {
get_cpuinfo_hardware() {
grep "^Hardware" "$PROC_CPUINFO" | sed 's/Hardware\s*:\s*//'
}
+get_dt_model() {
+ cat "$PROC_DTMODEL"
+}
+get_machine() {
+ if [ -f "$PROC_DTMODEL" ] ; then
+ get_dt_model
+ else
+ get_cpuinfo_hardware
+ fi
+}
get_kfile_suffix() {
local kfile="$1"
@@ -302,7 +313,7 @@ elif [ -n "$FK_MACHINE" ]; then
machine="$FK_MACHINE"
[ "x$machine" = "xnone" ] && exit
else
- machine="$(get_cpuinfo_hardware)"
+ machine="$(get_machine)"
fi
if [ "x$1" = "x--supported" ]; then
diff --git a/test_functions b/test_functions
index 604a296..6f3fbe8 100755
--- a/test_functions
+++ b/test_functions
@@ -155,7 +155,8 @@ EOF
(
. "$functions"
PROC_CPUINFO="$mock_proc_cpuinfo"
- machine=$(get_cpuinfo_hardware)
+ PROC_DTMODEL="/this/must/not/exist"
+ machine=$(get_machine)
if [ "$machine" != "Marvell SheevaPlug Reference Board" ]; then
echo "Expected machine to be Marvell SheevaPlug Reference Board but got $machine" >&2
exit 1
@@ -164,6 +165,42 @@ EOF
}
add_test test_get_cpuinfo_hardware
+test_get_dt_hardware() {
+ get_tempfile
+ mock_proc_cpuinfo="$last_tempfile"
+ cat >"$mock_proc_cpuinfo" <<EOF
+Processor : Feroceon 88FR131 rev 1 (v5l)
+BogoMIPS : 1191.11
+Features : swp half thumb fastmult edsp
+CPU implementer : 0x56
+CPU architecture: 5TE
+CPU variant : 0x2
+CPU part : 0x131
+CPU revision : 1
+
+Hardware : Marvell Kirkwood (Flattened Device Tree)
+Revision : 0000
+Serial : 0000000000000000
+EOF
+
+ get_tempfile
+ mock_dt_model="$last_tempfile"
+ echo -n "Globalscale Technologies Dreamplug" >"$mock_dt_model"
+
+ (
+ . "$functions"
+ PROC_CPUINFO="$mock_proc_cpuinfo"
+ PROC_DTMODEL="$mock_dt_model"
+ machine=$(get_machine)
+ if [ "$machine" != "Globalscale Technologies Dreamplug" ]; then
+ echo "Expected machine to be Globalscale Technologies Dreamplug but got $machine" >&2
+ exit 1
+ fi
+ )
+
+}
+add_test test_get_dt_hardware
+
test_get_kfile_suffix() {
(
. "$functions"
--
1.7.9.1
>From 7e68068116e15770119503e9a8a16326dceff4f3 Mon Sep 17 00:00:00 2001
From: Ian Campbell <i...@hellion.org.uk>
Date: Sat, 21 Apr 2012 20:06:10 +0100
Subject: [PATCH 2/3] Add support for installing a DTB binary into /boot
Use this new functionality for the dreamplug
---
README | 6 ++++++
db/all.db | 2 ++
debian/changelog | 1 +
functions | 12 ++++++++++++
4 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/README b/README
index 1d2c600..f8c2c1e 100644
--- a/README
+++ b/README
@@ -89,6 +89,8 @@ The supported fields are:
* Machine-Id: (optional) linux mach-type to set before starting vmlinuz;
will be set by a small piece of ARM code prepended to the kernel image
+* DTB-Id: (optional) specifies the name of the DTB file for this device
+
* U-Boot-Kernel-Address, U-Boot-Initrd-Address: (optional) address where
to load in (physical) RAM the kernel and initrd, respectively; this
also indicates that U-Boot images should be generated with mkimage
@@ -108,6 +110,10 @@ The supported fields are:
Boot-Initrd-Path but for an U-Boot boot script; see also
U-Boot-Script-Name and Boot-Device
+* Boot-DTB-Path: (optional) like Boot-Kernel-Path and Boot-Initrd-Path
+ but for a DTB file. The DTB file named by DTB-Id will be copied
+ here; see also DTB-Id
+
* Required-packages: (optional) list of packages which must be added
during installer phase for flash-kernel to work properly; failure to
add these packages aborts the installation
diff --git a/db/all.db b/db/all.db
index 31246ad..dbf3bf6 100644
--- a/db/all.db
+++ b/db/all.db
@@ -201,11 +201,13 @@ Bootloader-sets-root: no
Machine: Globalscale Technologies Dreamplug
Kernel-Flavors: kirkwood
+DTB-Id: kirkwood-dreamplug.dtb
U-Boot-Kernel-Address: 0x00008000
U-Boot-Initrd-Address: 0x0
Boot-Device: /dev/sdb1
Boot-Kernel-Path: uImage
Boot-Initrd-Path: uInitrd
+Boot-DTB-Path: dtb
Required-Packages: u-boot-tools
Bootloader-sets-root: no
diff --git a/debian/changelog b/debian/changelog
index 3b9c842..4448c13 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -3,6 +3,7 @@ flash-kernel (3.1) unstable; urgency=low
[ Ian Campbell ]
* Add support for FDT based devices using /proc/device-tree/model for
detection.
+ * Add support for installing a DTB file into the boot partition.
* Add support for DreamPlug.
-- Ian Campbell <i...@hellion.org.uk> Sat, 23 Jun 2012 16:59:12 +0000
diff --git a/functions b/functions
index 82bb09e..586140f 100644
--- a/functions
+++ b/functions
@@ -382,6 +382,7 @@ machine_id="$(get_machine_field "$machine" "Machine-Id")" || :
method="$(get_machine_field "$machine" "Method")" || method="generic"
mtd_kernel="$(get_machine_field "$machine" "Mtd-Kernel")" || :
mtd_initrd="$(get_machine_field "$machine" "Mtd-Initrd")" || :
+dtb_name="$(get_machine_field "$machine" "DTB-Id")" || :
ukaddr="$(get_machine_field "$machine" "U-Boot-Kernel-Address")" || :
uiaddr="$(get_machine_field "$machine" "U-Boot-Initrd-Address")" || :
umaddr="$(get_machine_field "$machine" "U-Boot-Multi-Address")" || :
@@ -391,6 +392,7 @@ boot_device="$(get_machine_field "$machine" "Boot-Device")" || :
boot_kernel_path="$(get_machine_field "$machine" "Boot-Kernel-Path")" || :
boot_initrd_path="$(get_machine_field "$machine" "Boot-Initrd-Path")" || :
boot_script_path="$(get_machine_field "$machine" "Boot-Script-Path")" || :
+boot_dtb_path="$(get_machine_field "$machine" "Boot-DTB-Path")" || :
boot_multi_path="$(get_machine_field "$machine" "Boot-Multi-Path")" || :
android_boot_device="$(get_machine_field "$machine" "Android-Boot-Device")" || :
@@ -537,6 +539,16 @@ case "$method" in
boot_script="$tmpdir/boot.scr"
backup_and_install "$boot_script" "$boot_script_path"
fi
+ if [ -n "$boot_dtb_path" ] ; then
+ boot_dtb_path="$boot_mnt_dir/$boot_dtb_path"
+ boot_dtb="/usr/lib/linux-image-$kvers/$dtb_name"
+ if [ ! -f "$boot_dtb" ] ; then
+ error "Couldn't find $boot_dtb"
+ fi
+ dtb="$tmpdir/dtb"
+ cp "$boot_dtb" "$dtb"
+ backup_and_install "$dtb" "$boot_dtb_path"
+ fi
;;
"symlink")
rm -f /boot/initrd /boot/zImage
--
1.7.9.1
>From e7fc8e9ef6de21428acba96b8cec97744a46da6b Mon Sep 17 00:00:00 2001
From: Ian Campbell <i...@hellion.org.uk>
Date: Sat, 23 Jun 2012 12:07:03 +0000
Subject: [PATCH 3/3] Support for appended DTB
Use it on DreamPlug
---
README | 3 +++
db/all.db | 1 +
debian/changelog | 1 +
functions | 20 ++++++++++++++++++++
4 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/README b/README
index f8c2c1e..81b65d2 100644
--- a/README
+++ b/README
@@ -91,6 +91,9 @@ The supported fields are:
* DTB-Id: (optional) specifies the name of the DTB file for this device
+* DTB-Append: (optional) when yes the DTB specified by DTB-Id will be appended
+ to the kernel image.
+
* U-Boot-Kernel-Address, U-Boot-Initrd-Address: (optional) address where
to load in (physical) RAM the kernel and initrd, respectively; this
also indicates that U-Boot images should be generated with mkimage
diff --git a/db/all.db b/db/all.db
index dbf3bf6..f1917fe 100644
--- a/db/all.db
+++ b/db/all.db
@@ -202,6 +202,7 @@ Bootloader-sets-root: no
Machine: Globalscale Technologies Dreamplug
Kernel-Flavors: kirkwood
DTB-Id: kirkwood-dreamplug.dtb
+DTB-Append: yes
U-Boot-Kernel-Address: 0x00008000
U-Boot-Initrd-Address: 0x0
Boot-Device: /dev/sdb1
diff --git a/debian/changelog b/debian/changelog
index 4448c13..f4621c1 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -4,6 +4,7 @@ flash-kernel (3.1) unstable; urgency=low
* Add support for FDT based devices using /proc/device-tree/model for
detection.
* Add support for installing a DTB file into the boot partition.
+ * Add support for appending a DTB to the kernel.
* Add support for DreamPlug.
-- Ian Campbell <i...@hellion.org.uk> Sat, 23 Jun 2012 16:59:12 +0000
diff --git a/functions b/functions
index 586140f..df00a86 100644
--- a/functions
+++ b/functions
@@ -186,6 +186,17 @@ gen_kernel() {
} >"$output"
}
+append_dtb() {
+ local kernel="$1"
+ local dtb="$2"
+ local output="$3"
+
+ {
+ cat "$kernel"
+ cat "$dtb"
+ } >"$output"
+}
+
flash_kernel() {
local input_file="$1"
local output_mtd="$2"
@@ -383,6 +394,7 @@ method="$(get_machine_field "$machine" "Method")" || method="generic"
mtd_kernel="$(get_machine_field "$machine" "Mtd-Kernel")" || :
mtd_initrd="$(get_machine_field "$machine" "Mtd-Initrd")" || :
dtb_name="$(get_machine_field "$machine" "DTB-Id")" || :
+dtb_append="$(get_machine_field "$machine" "DTB-Append")" || :
ukaddr="$(get_machine_field "$machine" "U-Boot-Kernel-Address")" || :
uiaddr="$(get_machine_field "$machine" "U-Boot-Initrd-Address")" || :
umaddr="$(get_machine_field "$machine" "U-Boot-Multi-Address")" || :
@@ -472,6 +484,14 @@ case "$method" in
gen_kernel "$kernel" "$tmpdir/kernel" "$machine_id"
kernel="$tmpdir/kernel"
fi
+ if [ x"$dtb_append" = "xyes" ] ; then
+ dtb="/usr/lib/linux-image-$kvers/$dtb_name"
+ if [ ! -f "$dtb" ] ; then
+ error "Couldn't find $dtb"
+ fi
+ append_dtb "$kernel" "$dtb" "$tmpdir/kernel"
+ kernel="$tmpdir/kernel"
+ fi
if [ -n "$ukaddr" ]; then
mkimage_kernel "$ukaddr" "$desc" "$kernel" \
"$tmpdir/uImage"
--
1.7.9.1
