The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x c1472ec1dc4419d0bae663c1a1e6cb98dc7881ad # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2025021033-chariot-imminent-753d@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From c1472ec1dc4419d0bae663c1a1e6cb98dc7881ad Mon Sep 17 00:00:00 2001 From: Romain Naour romain.naour@skf.com Date: Fri, 15 Nov 2024 11:25:37 +0100 Subject: [PATCH] ARM: dts: dra7: Add bus_dma_limit for l4 cfg bus
A bus_dma_limit was added for l3 bus by commit cfb5d65f2595 ("ARM: dts: dra7: Add bus_dma_limit for L3 bus") to fix an issue observed only with SATA on DRA7-EVM with 4GB RAM and CONFIG_ARM_LPAE enabled.
Since kernel 5.13, the SATA issue can be reproduced again following the SATA node move from L3 bus to L4_cfg in commit 8af15365a368 ("ARM: dts: Configure interconnect target module for dra7 sata").
Fix it by adding an empty dma-ranges property to l4_cfg and segment@100000 nodes (parent device tree node of SATA controller) to inherit the 2GB dma ranges limit from l3 bus node.
Note: A similar fix was applied for PCIe controller by commit 90d4d3f4ea45 ("ARM: dts: dra7: Fix bus_dma_limit for PCIe").
Fixes: 8af15365a368 ("ARM: dts: Configure interconnect target module for dra7 sata"). Link: https://lore.kernel.org/linux-omap/c583e1bb-f56b-4489-8012-ce742e85f233@smil... Cc: stable@vger.kernel.org # 5.13 Signed-off-by: Romain Naour romain.naour@skf.com Link: https://lore.kernel.org/r/20241115102537.1330300-1-romain.naour@smile.fr Signed-off-by: Kevin Hilman khilman@baylibre.com
diff --git a/arch/arm/boot/dts/ti/omap/dra7-l4.dtsi b/arch/arm/boot/dts/ti/omap/dra7-l4.dtsi index 6e67d99832ac..ba7fdaae9c6e 100644 --- a/arch/arm/boot/dts/ti/omap/dra7-l4.dtsi +++ b/arch/arm/boot/dts/ti/omap/dra7-l4.dtsi @@ -12,6 +12,7 @@ &l4_cfg { /* 0x4a000000 */ ranges = <0x00000000 0x4a000000 0x100000>, /* segment 0 */ <0x00100000 0x4a100000 0x100000>, /* segment 1 */ <0x00200000 0x4a200000 0x100000>; /* segment 2 */ + dma-ranges;
segment@0 { /* 0x4a000000 */ compatible = "simple-pm-bus"; @@ -557,6 +558,7 @@ segment@100000 { /* 0x4a100000 */ <0x0007e000 0x0017e000 0x001000>, /* ap 124 */ <0x00059000 0x00159000 0x001000>, /* ap 125 */ <0x0005a000 0x0015a000 0x001000>; /* ap 126 */ + dma-ranges;
target-module@2000 { /* 0x4a102000, ap 27 3c.0 */ compatible = "ti,sysc";