openwrt/target/linux/mediatek/patches-5.15/190-arm64-dts-mediatek-mt7622-fix-GICv2-range.patch
Daniel Golle 5d135fcf9d
mediatek: backport recent DTS improvements for MT7622 SoC
Daniel Golle:
 190-arm64-dts-mediatek-mt7622-fix-GICv2-range.patch

Rui Salvaterra:
 191-arm64-dts-mt7622-specify-the-L2-cache-topology.patch
 192-arm64-dts-mt7622-specify-the-number-of-DMA-requests.patch

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2022-04-30 16:00:10 +01:00

107 lines
4.9 KiB
Diff

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Date: Tue, 26 Apr 2022 20:51:36 +0100
From: Daniel Golle <daniel@makrotopia.org>
To: devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Matthias Brugger <matthias.bgg@gmail.com>
Subject: [PATCH] arm64: dts: mediatek: mt7622: fix GICv2 range
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With the current range specified for the CPU interface there is an
error message at boot:
GIC: GICv2 detected, but range too small and irqchip.gicv2_force_probe not set
Setting irqchip.gicv2_force_probe=1 in bootargs results in:
GIC: Aliased GICv2 at 0x0000000010320000, trying to find the canonical range over 128kB
GIC: Adjusting CPU interface base to 0x000000001032f000
GIC: Using split EOI/Deactivate mode
Using the adjusted CPU interface base and 8K size results in only the
final line remaining and fully working system as well as /proc/interrupts
showing additional IPI3,4,5,6:
IPI3: 0 0 CPU stop (for crash dump) interrupts
IPI4: 0 0 Timer broadcast interrupts
IPI5: 0 0 IRQ work interrupts
IPI6: 0 0 CPU wake-up interrupts
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
arch/arm64/boot/dts/mediatek/mt7622.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
@@ -339,7 +339,7 @@
#interrupt-cells = <3>;
interrupt-parent = <&gic>;
reg = <0 0x10310000 0 0x1000>,
- <0 0x10320000 0 0x1000>,
+ <0 0x1032f000 0 0x2000>,
<0 0x10340000 0 0x2000>,
<0 0x10360000 0 0x2000>;
};