pmaports/device/community/linux-postmarketos-exynos4/tab3-limit-memory.patch
knuxify 0bb531b926
community/linux-postmarketos-exynos4: Add patch needed for booting samsung-lt01 (MR 4435)
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
2024-03-24 14:57:52 +01:00

36 lines
1.2 KiB
Diff

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