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Commit a470f742 authored by Dzmitry's avatar Dzmitry
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starqltechn: automate dualbooting with u-boot 

Dual boot PostmarketOS and Android with u-boot! It works by placing an additional u-boot FIT image,
and a script into overridden initramfs. Mentioned script is used to find and select image to boot.
User should enable dual-boot explicitly by enabling commented deviceinfo options,
and placing vendor boot image into device /boot directory, running 'pmbootstrap init' and
specifying vendor boot image location, if building locally.

deviceinfo_bootimg_override_initramfs:
- add android_boot_image.itb - u-boot FIT image assembled,
using extracted kernel and ramdisk from vendor image.
- add find_image_and_boot.itb - u-boot FIT image with a script
to find and boot needed image.

Set couple new options:
- deviceinfo_bootimg_override_header_info_using_vendor_image="true"
This overrides boot image header values, written in deviceinfo, by
extracted values from vendor image. This mainly needed to trick trustzone.

- deviceinfo_bootimg_vendor_android_boot_image="vendor_boot.img"
We're counting on vendor image to be on device's /boot directory in a file
with that name.

- deviceinfo_bootimg_vendor_device_tree_identifiers="qcom,msm-id\s*=\s*<0x141\s*0x20001>; qcom,board-id\s*=\s*<0x08\s*0x0e>;"
Identifiers to find a dtb, used by stock bootloader in vendor's boot image file.
parent e3154dd0
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device/testing/device-samsung-starqltechn/APKBUILD
+ 20
− 3
View file @ a470f742
......@@ -2,14 +2,23 @@
pkgname=device-samsung-starqltechn
pkgdesc="Samsung Galaxy S9 SM-G9600"
pkgver=0.2
pkgrel=2
pkgrel=3
url="https://postmarketos.org"
license="MIT"
arch="aarch64"
options="!check !archcheck"
depends="postmarketos-base linux-postmarketos-qcom-sdm845 mkbootimg u-boot-starqltechn u-boot-tools dtc"
makedepends="devicepkg-dev dtc"
source="deviceinfo boot_image.its payload_mock.dts bootscript.sh"
source="
android_boot_image.its
boot_image.its
bootscript.sh
bootscript_android.sh
deviceinfo
find_image_and_boot.its
find_image_and_boot.sh
payload_mock.dts
"
build() {
devicepkg_build $startdir $pkgname
......@@ -27,12 +36,20 @@ package() {
"$pkgdir"/usr/share/u-boot/starqltechn/
install -D -m644 "$srcdir/"bootscript.sh \
"$pkgdir"/usr/share/u-boot/starqltechn/
install -D -m644 "$srcdir/"bootscript_android.sh \
"$pkgdir"/usr/share/u-boot/starqltechn/
install -D -m644 "$srcdir/"find_image_and_boot.sh \
"$pkgdir"/usr/share/u-boot/starqltechn/
}
sha512sums="
1a51b1a75a7ab23b0011d2952e716b6d98a3a395578a99e278d8eda4c921ce015ce1f0e386a88b89e9f657edc867f00fffd11e550a91ec9ede2769d8cbfd1718 deviceinfo
9815c6429da9df84ca802c53a68b2352edb6756dfdfa9c61b8cda3eb97ec3d28e7f4158256a868d7efd4ce0da6616f215e64111d59e335c604b1b987a66080fa deviceinfo
8ecd6621738b14fecfb8bb32f06fa86053649f46d6ef7e50cdc6dd44175d459a8b5f185e0b1d6168d23d6b8474ea31ae9aaf306385eb106df6489e6838b4fbe1 boot_image.its
31dc6cf933881ac4f9512d3e78e73c151420a307058227028c4a62f8121d6b37d0f89eb9ffa3d871a0cc50767ca1ee16e0167e82021ba61562222e94969c233b android_boot_image.its
ba782c324c14cf0947c752b51a607ae1b08def885b0cf0afe89d1fcade3491ab2f547551eb08bd8074f608dac46bdcdf75c5c633bd7a15e6eb63a10f30994c82 payload_mock.dts
fc9a353946a061b964b8d85ba40a55aabd5dc51ad079ce9013473fb2031f2bea7f987dc437f3e7b515e7f1eccc16c7ba0c616926f59f98382b1193e6875b50f3 bootscript.sh
592f9480155676878a6484850b7f9526cbbe591cecb5d4acf3c71bda5826aea69fcf10324787c12f40189f0aa3ceeb65ab7836c4708afc476960cae9fae7f09b bootscript_android.sh
26bb890f50b6430917bb0c79fe198aa2ca8e36c618560d3867f3135bec57fd8b2dd6467c7e5d9389ac8159ccbe24f629a9c845488741fba2aa53e38b7887f6a1 find_image_and_boot.its
bfc5da4030dd48e4de0a0c1803f583ffa8b09a712e48121096125e7906141b811e9b0c22392518f8bc270def57bfb16343a20b4a8309427bae69d2eb21c24577 find_image_and_boot.sh
"
device/testing/device-samsung-starqltechn/android_boot_image.its 0 → 100644
+ 68
− 0
View file @ a470f742
/dts-v1/;
/ {
description = "Samsung S9 SM-G9600 starqltechn Android FIT Image";
#address-cells = <1>;
images {
prebootscript {
description = "pre Boot script";
data = /incbin/("bootscript_android.sh");
type = "script";
compression = "none";
load = <0x90000000>;
entry = <0x90000000>;
hash {
algo = "sha1";
};
};
bootscript {
description = "Boot script";
data = /incbin/("bootscript_android.sh");
type = "script";
compression = "none";
load = <0x90000000>;
entry = <0x90000000>;
hash {
algo = "sha1";
};
};
kernel {
description = "Kernel";
data = /incbin/("vendor_android_boot/vendor_boot.img-kernel");
type = "kernel";
arch = "arm64";
os = "linux";
compression = "gzip";
load = <0x80200000>;
entry = <0x80200000>;
hash {
algo = "sha1";
};
};
initrd {
description = "Initrd";
compression = "none";
data = /incbin/("vendor_android_boot/vendor_boot.img-ramdisk");
type = "ramdisk";
arch = "arm64";
load = <0x84000000>;
os = "linux";
hash {
algo = "sha1";
};
};
};
configurations {
default = "standard";
standard {
description = "Standard Boot";
kernel = "kernel";
ramdisk = "initrd";
hash {
algo = "sha1";
};
};
};
};
device/testing/device-samsung-starqltechn/bootscript.sh
+ 3
− 1
View file @ a470f742
#!/bin/sh
setenv bootargs 'console=tty1 loglevel=15 clk_ignore_unused'
bootm $prevbl_initrd_start_addr
bootm "$image_address"
device/testing/device-samsung-starqltechn/bootscript_android.sh 0 → 100644
+ 20
− 0
View file @ a470f742
#!/bin/sh
echo "Booting Android"
echo "searching for KASLR address..."
addr=0x80000000
until cmp "$relocaddr" "$addr" 0x100; do
setexpr addr $addr + 0x1000
done
echo "KASLR address is 0x$addr"
setenv bootm_low "0x$addr"
setenv bootm_size 0x5000000
fdt addr $prevbl_initrd_start_addr
fdt set "/images/kernel" "load" "<0x$addr>"
fdt set "/images/kernel" "entry" "<0x$addr>"
fdt addr $prevbl_fdt_addr
fdt print "/chosen"
bootm $image_address#standard $image_address#standard $prevbl_fdt_addr
device/testing/device-samsung-starqltechn/deviceinfo
+ 5
− 1
View file @ a470f742
......@@ -26,7 +26,11 @@ deviceinfo_bootimg_dtb_second="false"
deviceinfo_bootimg_override_payload="u-boot.bin"
deviceinfo_bootimg_override_payload_compression="gzip"
deviceinfo_bootimg_override_payload_append_dtb="payload_mock.dtb"
deviceinfo_bootimg_override_initramfs="boot_image.itb"
deviceinfo_bootimg_override_initramfs="find_image_and_boot.itb android_boot_image.itb boot_image.itb"
deviceinfo_bootimg_override_header_info_using_vendor_image="true"
deviceinfo_bootimg_vendor_android_boot_image="vendor_boot.img"
deviceinfo_bootimg_vendor_dependent="android_boot_image.itb"
deviceinfo_bootimg_vendor_device_tree_identifiers="qcom,msm-id\s*=\s*<0x141\s*0x20001>; qcom,board-id\s*=\s*<0x08\s*0x0e>;"
deviceinfo_flash_offset_base="0x00000000"
deviceinfo_flash_offset_kernel="0x00008000"
deviceinfo_flash_offset_ramdisk="0x02000000"
......
device/testing/device-samsung-starqltechn/find_image_and_boot.its 0 → 100644
+ 32
− 0
View file @ a470f742
/dts-v1/;
/ {
description = "Samsung S9 SM-G9600 starqltechn boot script";
#address-cells = <1>;
images {
bootscript {
description = "Boot script";
data = /incbin/("find_image_and_boot.sh");
type = "script";
compression = "none";
load = <0x90000000>;
entry = <0x90000000>;
hash {
algo = "sha1";
};
};
prebootscript {
description = "pre boot script";
data = /incbin/("find_image_and_boot.sh");
type = "script";
compression = "none";
load = <0x90000000>;
entry = <0x90000000>;
hash {
algo = "sha1";
};
};
};
};
device/testing/device-samsung-starqltechn/find_image_and_boot.sh 0 → 100644
+ 49
− 0
View file @ a470f742
#!/bin/sh
echo "searching for FIT images..."
ramdisk_addr=0xa2000000
image_addresses_start=0x80000000
image_addresses=$image_addresses_start
image_number=0
doodfeed=0xedfe0dd0
if itest $ramdisk_addr <= 0xa6001000; then
echo "true"
fi
if itest $ramdisk_addr >= 0xa0001000; then
echo "false"
fi
while itest $ramdisk_addr <= 0xa6001000; do
if itest *$ramdisk_addr == $doodfeed; then
echo "address at $ramdisk_addr matches"
if itest $image_number != 0; then
echo "######## image $image_number found at $ramdisk_addr ########"
iminfo $ramdisk_addr
mw $image_addresses $ramdisk_addr 1
setexpr image_addresses $image_addresses + 4
fi
setexpr image_number $image_number + 1
fi
setexpr ramdisk_addr $ramdisk_addr + 0x1000
done
if itest $image_number <= 1; then
echo "No images found!"
fi
if itest "${key_vol_down}" -eq "1"; then
echo "key down pressed, booting 2nd image"
setexpr image_address $image_addresses_start + 4
setexpr image_address *$image_address
echo "image_address: $image_address"
source $image_address:bootscript
else
echo "key down NOT pressed, booting 1st image"
setexpr image_address $image_addresses_start
setexpr image_address *$image_address
echo "image_address: $image_address"
source $image_address:bootscript
fi
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