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Pine Phone

Yes, you read it correct, we're still speaking about pinephone. Librem5 is still out there. Not in here. Regardless, Pine64 started selling CE upgrade for the braveheart and as soon as I figured that I decided to upgrade one of mine pine phones with 3GB. The upgrade is delievered as a new mainboard and for braveheart owners there's a discount. This week the board finally arrived to my post-office and they decided it's too big for them to deliver it (they always do it regardless of the size and weight, that's the way they work).

Before swapping the board I've decided to pre-cook a new image with latest PureOS for L5 converted to PP. This time to make sure I can rebuild it whenever I want I've decided to make it hard way - by creating a build script which would allow me re-cooking the image on demand. Actually I've tried to create that script even for the first build but then another phone came, I started playing with various OSes and forgot this one. While playing with other OSes I've realized there's now pretty well-prepared kernel for PP maintained by Megous(aka Megi) - so the new build will actually be based on this kernel. And u-boot. And atf.

The build process still follows my original approach - take latest successful L5 PureOS build from jenkins artifacts, build latest u-boot, inject u-boot into the image, put a kernel into the root (modules) and boot (image and boot.scr) fs, and deploy the image onto micro-sd card. To avoid bricking the image by doing next upgrade (which will likely pull a new kernel and regenerate L5 boot vector) the script pins the kernel package preventing it from being upgraded. Hence original L5 kernel remains in the system (it is also a dependency for a number of packages so you cannot just remove it). And if you accidentally force-upgrade it you'd need to remove sd-card and re-generate boot.scr file on its boot partition.

While building and testing I've noticed the purism's build server very frequently (almost always) aborts download prematurely - perhaps they put some protection against abuse, dunno, so I've made the script to try to continue download if the file already exists. In addition to that, to be able to tinker with the image if you add anything after the script (eg. ./build_image 1) it will also preserve original pureos image archive so that you can re-extract and do whatever you want with it.

Also to pretend it's more complex than it really is the script runs in a verbose/debug/tracing/-x mode so you can see where it fails (if it does). Although because initial time consuming tasks (build and image download) are running as background tasks in parallel - it might be very tough to understand where it actually failed (eg download may fail while the build is still running and you see the error only after the build has finished).

...
  LD      spl/drivers/power/built-in.o
  LD      spl/drivers/power/pmic/built-in.o
  LD      spl/drivers/power/regulator/built-in.o
  CC      spl/drivers/serial/serial.o
  CC      spl/drivers/serial/serial_ns16550.o
  CC      spl/drivers/serial/ns16550.o
  LD      spl/drivers/serial/built-in.o
  LD      spl/drivers/soc/built-in.o
  LD      spl/drivers/built-in.o
  LD      spl/dts/built-in.o
  CC      spl/fs/fs_internal.o
  LD      spl/fs/built-in.o
  LDS     spl/u-boot-spl.lds
  LD      spl/u-boot-spl
  OBJCOPY spl/u-boot-spl-nodtb.bin
  COPY    spl/u-boot-spl.bin
  MKSUNXI spl/sunxi-spl.bin
  MKIMAGE u-boot.img
  COPY    u-boot.dtb
  MKIMAGE u-boot-dtb.img
./"board/sunxi/mksunxi_fit_atf.sh" \
arch/arm/dts/sun50i-a64-pine64-lts.dtb > u-boot.its
  MKIMAGE u-boot.itb
  CAT     u-boot-sunxi-with-spl.bin
===================== WARNING ======================
This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate
to binman instead, to avoid the proliferation of
arch-specific scripts with no tests.
====================================================
  CFGCHK  u-boot.cfg
+ cp u-boot-sunxi-with-spl.bin ../
+ cd ..
+ wait -f
+ xzcat librem5r3.img.xz
xzcat: librem5r3.img.xz: Unerwartetes Ende der Eingabe

Here you can see the build has finished, then the script resumed sequential execution and failed at unpacking the image. After this kind of error you just need to re-execute the script and it will continue downloading the pureos image while partially rebuilding the u-boot.

$ ./build_image.sh 
+ GIT_URL_ATF=https://megous.com/git/atf
+ GIT_URL_UBM=https://megous.com/git/u-boot
+ PINE_LINUX_REPO=https://gitlab.com/pine64-org/linux
+ PINE_LINUX_BRANCH=pine64-kernel-5.5.y
+ LIBREM5_CI=https://arm01.puri.sm/job/Images/job/Image%20Build/api/xml
+ LIBREM5_IMG=librem5r3
+ CI_FILTER='contains(description,%20%27librem5r3%27)%20and%20contains(result,\
	%20%27SUCCESS%27)'
+ SYS_IMG=librem5r3.img
+ KERNEL_URL=https://xff.cz/kernels/5.9/pp.tar.gz
+ fetch_system
++ curl -sg 'https://arm01.puri.sm/job/Images/job/Image%20Build/api/xml?depth=1&...
++ sed 's/<<[^>]\+>//g'
+ LAST=https://arm01.puri.sm/job/Images/job/Image%20Build/6058/
+ IMG_URL=https://arm01.puri.sm/job/Images/job/Image%20Build/6058//artifact/\
	librem5r3.img.xz
+ fetch_kernel
+ curl https://arm01.puri.sm/job/Images/job/Image%20Build/6058//artifact/\
	librem5r3.img.xz -O -C -
+ '[' x = x ']'
+ build_uboot
+ curl -O https://xff.cz/kernels/5.9/pp.tar.gz -C -
+ test -d atf
+ git -C atf pull
** Resuming transfer from byte position 220252415
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
** Resuming transfer from byte position 13343754
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   190  100   190    0     0    524      0 --:--:-- --:--:-- --:--:--   524
Bereits aktuell.
+ cd atf
+ make CROSS_COMPILE=aarch64-linux-gnu- PLAT=sun50i_a64 DEBUG=1 bl31

...

+ wait -f
100  647M  100  647M    0     0  3038k      0  0:03:38  0:03:38 --:--:-- 3019k
+ xzcat librem5r3.img.xz
+ dd if=u-boot-sunxi-with-spl.bin of=librem5r3.img bs=8k seek=1 conv=notrunc
86+1 Datensätze ein
86+1 Datensätze aus
707804 Bytes (708 kB, 691 KiB) kopiert, 0,00577333 s, 123 MB/s
+ MNT=sd
+ test -d sd
+ mkdir sd
++ losetup -f
+ LO=/dev/loop1
+ sudo losetup -P /dev/loop1 librem5r3.img
[sudo] Passwort für ruff: 
+ sudo mount /dev/loop1p2 sd
+ sudo mount /dev/loop1p1 sd/boot
+ sudo tar xf pp.tar.gz -C sd/boot --strip-components=1 --exclude=modules \
	--exclude=headers
+ sudo tar xf pp.tar.gz -C sd/lib/modules --strip-components=4 --wildcards \
	'*/lib/modules/*'
+ sudo tar xf pp.tar.gz -C sd/usr/src/ --strip-components=1 --wildcards '*/headers/*'
+ echo 'setenv bootargs root=/dev/mmcblk0p2 rootwait console=ttyS0,115200 loglevel=7 \
	panic=10
load mmc 0:1 $kernel_addr_r Image
load mmc 0:1 $fdt_addr_r sun50i-a64-pinephone.dtb
#load mmc 0:1 $ramdisk_addr_r initrd.uimg &&
#booti $kernel_addr_r $ramdisk_addr_r $fdt_addr_r
booti $kernel_addr_r - $fdt_addr_r'
+ cd sd/boot
+ sudo mv boot.scr boot.scr.orig
+ sudo mkimage -A arm64 -T script -n pinephone -d ../../boot.txt boot.scr
Image Name:   pinephone
Created:      Thu Dec 10 21:17:56 2020
Image Type:   AArch64 Linux Script (gzip compressed)
Data Size:    308 Bytes = 0.30 KiB = 0.00 MiB
Load Address: 00000000
Entry Point:  00000000
Contents:
   Image 0: 300 Bytes = 0.29 KiB = 0.00 MiB
+ sudo ln -s board-1.1.dtb sun50i-a64-pinephone.dtb
+ cd ../..
+ sudo umount -R sd
+ sudo losetup -d /dev/loop1
+ '[' x = x ']'
+ rm librem5r3.img.xz
+ rm u-boot-sunxi-with-spl.bin
+ rm boot.txt
+ rm -r sd
+ echo 'Copy image librem5r3.img to SD card with
dd if=librem5r3.img of=/dev/sdX bs=16k
'
Copy image librem5r3.img to SD card with
dd if=librem5r3.img of=/dev/sdX bs=16k

This is how the script succeeds. After that you need to follow the lead and do what it suggests (replacing X with actual drive letter). And then put the card into the pphone and you should get something like this

Chapter 2: CE Upgrade

There's a video Martjin Braam uploaded which shows in details how to replace the boards. What the video misses is that the CE upgrade board comes actually without camera modules so you'd need to swap them from the old board. Which again is pretty straight forward process. So unscrew, pull the flex connectors, pull the antenae cables, pry the board from one side and remove it, remove the cameras. Then repeat in reverse order with the new board.

Unfortunatelly after assembling my board and booting into new image the touch-screen was not working for me. And after I swapped the original board back - the screen was working again. I've opened the case with Pine64 and they suggested to RMA the board (which I'm still about to do). So bear with me on that one, once I got it RMAd I'll finish the chapter.

Sun Dec 6 23:11:34 2020 Upd.: Fri Dec 18 12:48:03 2020
 
 
© ruff 2011