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community/linux-postmarketos-exynos4: Add patch needed for booting samsung-lt01 (MR 4435)

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This one has stalled a bit due to some upstream shenanigans,
but is now confirmed to be fine; since it hasn't been merged
yet, add it here manually.

[ci:skip-build]: already built successfully in CI
This commit is contained in:
knuxify 2024-03-23 20:24:10 +01:00 committed by Stefan Hansson
parent b37ce13469
commit 0bb531b926
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GPG key ID: 8A700086A9FE41FD
2 changed files with 39 additions and 1 deletions
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4
device/community/linux-postmarketos-exynos4/APKBUILD
View file

@ -4,7 +4,7 @@
pkgname=linux-postmarketos-exynos4
pkgver=6.7.6
pkgrel=1
pkgrel=2
pkgdesc="Mainline kernel fork for Samsung Exynos4 devices"
arch="armv7"
_carch="arm"
@ -42,6 +42,7 @@ source="
$_config
initramfs.list
init
tab3-limit-memory.patch
"
builddir="$srcdir/linux-$_tag"
@ -83,4 +84,5 @@ sha512sums="
ee4cec8100ebe1d85bd18ba0ba5bdf9746f1fb7a7cb6dff0d8f6782d03f51e5d87f0d05a388ff641c276db7857e729ceb900bf33061d079e97cf6e7b43dd5027 config-postmarketos-exynos4.armv7
aaff0332b90e1f9f62de1128cace934717336e54ab09de46477369fa808302482d97334e43a85ee8597c1bcab64d3484750103559fea2ce8cd51776156bf7591 initramfs.list
09f1f214a24300696809727a7b04378887c06ca6f40803ca51a12bf2176a360b2eb8632139d6a0722094e05cb2038bdb04018a1e3d33fc2697674552ade03bee init
aea665e80dee318ec3be23d3f28b88e87eb551d2756e14d896781a0861a4387920f6969990eb171e8c7d6f86c36cef63a89337d63bfee7e44b9de7a8efb36c73 tab3-limit-memory.patch
"

36
device/community/linux-postmarketos-exynos4/tab3-limit-memory.patch Normal file
View file

@ -0,0 +1,36 @@
From 57ae04aa40be1e83e2da2fdf92de749f694ea5f8 Mon Sep 17 00:00:00 2001
From: Artur Weber <aweber.kernel@gmail.com>
Date: Sat, 17 Feb 2024 12:34:46 +0100
Link: https://gitlab.com/exynos4-mainline/linux/-/merge_requests/13
Subject: [PATCH] ARM: dts: exynos4212-tab3: Limit usable memory range
The stock bootloader on the Samsung Galaxy Tab 3 8.0 provides an
incorrect available memory range over ATAG_MEM. Limit the usable
memory in the DTS to prevent it from doing so, without having to
disable ATAG support.
Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
---
arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi b/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi
index 87a1317f9220..996cd5cb0c07 100644
--- a/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi
+++ b/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi
@@ -45,6 +45,12 @@ chosen {
/* Default S-BOOT bootloader loads initramfs here */
linux,initrd-start = <0x42000000>;
linux,initrd-end = <0x42800000>;
+
+ /*
+ * S-BOOT provides incorrect memory size in bootloader;
+ * override it here
+ */
+ linux,usable-memory-range = <0x40000000 0x3fc00000>;
};
firmware@204f000 {
--
2.44.0