samsung-i9100: add mainline kernel

Kernel config based on: https://github.com/Sekilsgs2/i9100_kernel_mainline_port/blob/master/arch/arm/configs/i9100_defconfig

How to get serial output

I made a USB debug cable using a 523K resistor. You can get bootloader output by holding the HOME button while booting. To enter prompt hold the RETURN key until you get the SBL> prompt. Now change the CMDLINE and boot with:

setenv SWITCH_SEL 3
setenv CMDLINE loglevel=7 console=ttySAC2,115200 PMOS_NO_OUTPUT_REDIRECT
saveenv
boot

Setting SWITCH_SEL somehow enables serial output on the USB connector.

TODO

• Boot to debug-shell
• Boot to pmOS
• USB Network
• 3D Acceleration
• Wifi
• Bluetooth
• Everything else

device/testing/device-samsung-i9100/APKBUILD

 # Reference: <https://postmarketos.org/devicepkg>
 pkgname=device-samsung-i9100
-pkgver=1
-pkgrel=29
+pkgver=2
+pkgrel=0
 pkgdesc="Samsung Galaxy SII"
 url="https://postmarketos.org"
 arch="armv7"
 license="MIT"
-depends="postmarketos-base linux-samsung-i9100 libsamsung-ipc mesa-dri-swrast"
+depends="postmarketos-base libsamsung-ipc"
 makedepends="devicepkg-dev"
 install="$pkgname.post-install"
-subpackages="$pkgname-nonfree-firmware:nonfree_firmware"
+options="!check !archcheck"
+subpackages="
+	$pkgname-kernel-downstream:kernel_downstream
+	$pkgname-kernel-mainline:kernel_mainline
+	$pkgname-nonfree-firmware:nonfree_firmware
+	$pkgname-weston:weston
+"
 source="
 	deviceinfo
 	90-android-touch-dev.rules
+	weston.ini
 "
-options="!check !archcheck"
 
 build() {
 	devicepkg_build $startdir $pkgname
@@ -26,11 +32,30 @@ package() {
 		"$pkgdir"/etc/udev/rules.d/90-android-touch-dev.rules
 }
 
+kernel_downstream() {
+	pkgdesc="Downstream kernel"
+	depends="linux-samsung-i9100 mesa-dri-swrast"
+	devicepkg_subpackage_kernel $startdir $pkgname $subpkgname
+}
+
+kernel_mainline() {
+	pkgdesc="Close to mainline kernel"
+	depends="linux-samsung-i9100-mainline mesa-dri-gallium"
+	devicepkg_subpackage_kernel $startdir $pkgname $subpkgname
+}
+
 nonfree_firmware() {
 	pkgdesc="Wifi firmware"
 	depends="firmware-samsung-i9100"
 	mkdir "$subpkgdir"
 }
 
+weston() {
+	install_if="$pkgname-kernel-mainline weston"
+	install -Dm644 "$srcdir"/weston.ini \
+		"$subpkgdir"/etc/xdg/weston/weston.ini
+}
+
 sha512sums="2ae133ce0126b38ee05e62f3cf560d1b336816928c2fd896686bd8b64fcab1920a1b0270df1a844dc7b977948308a02110f88b82225ee0f0cbcab17b9fa10a3d  deviceinfo
-089635daddd88eec35451bfe98dc3713035e3623c896dd21305b990ecf422e8fbb54e010cf347919bbb3a7385f639ab119280477fe0783df3228168d97d96fc6  90-android-touch-dev.rules"
+089635daddd88eec35451bfe98dc3713035e3623c896dd21305b990ecf422e8fbb54e010cf347919bbb3a7385f639ab119280477fe0783df3228168d97d96fc6  90-android-touch-dev.rules
+de794566118f1744d068a94e6a75b61d43f6749a4b0871a5270fa7a2048164d609c71fcffa61845c2a7dd4cb5fbeb72c0e4f8b73b382f36d6ff0bcc9b8a5ae25  weston.ini"