[PATCH v1 2/2] arm64: dts: st: Use 128kB size or aliased GIC400 register access

Christian Bruel christian.bruel at foss.st.com
Thu Apr 10 03:07:58 PDT 2025


Adjust the size of 8kB GIC regions to 128kB so that each 4kB is mapped 16 times
over a 64kB region. The offset is then adjusted in the irq-gic driver.

see commit 12e14066f4835 ("irqchip/GIC: Add workaround for aliased GIC400")

Fixes: 5d30d03aaf785 ("arm64: dts: st: introduce stm32mp25 SoCs family")
Signed-off-by: Christian Bruel <christian.bruel at foss.st.com>
Suggested-by: Marc Zyngier <maz at kernel.org>
Acked-by: Marc Zyngier <maz at kernel.org>
---
v1: Fixed patch comment.

 arch/arm64/boot/dts/st/stm32mp251.dtsi | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
index 379e290313dc..87110f91e489 100644
--- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
@@ -119,9 +119,9 @@ intc: interrupt-controller at 4ac00000 {
 		#interrupt-cells = <3>;
 		interrupt-controller;
 		reg = <0x0 0x4ac10000 0x0 0x1000>,
-		      <0x0 0x4ac20000 0x0 0x2000>,
-		      <0x0 0x4ac40000 0x0 0x2000>,
-		      <0x0 0x4ac60000 0x0 0x2000>;
+		      <0x0 0x4ac20000 0x0 0x20000>,
+		      <0x0 0x4ac40000 0x0 0x20000>,
+		      <0x0 0x4ac60000 0x0 0x20000>;
 	};
 
 	psci {
-- 
2.34.1




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