From 57ae04aa40be1e83e2da2fdf92de749f694ea5f8 Mon Sep 17 00:00:00 2001 From: Artur Weber 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 --- 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