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arm64: dts: st: Use 128kB size for aliased GIC400 register access on …
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…stm32mp25 SoCs

[ Upstream commit 06c231f ]

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 12e1406 ("irqchip/GIC: Add workaround for aliased GIC400")

Fixes: 5d30d03 ("arm64: dts: st: introduce stm32mp25 SoCs family")
Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Christian Bruel <christian.bruel@foss.st.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20250415111654.2103767-3-christian.bruel@foss.st.com
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Christian Bruel authored and Greg Kroah-Hartman committed May 9, 2025
1 parent c332953 commit bb5f0c2
Showing 1 changed file with 3 additions and 3 deletions.
6 changes: 3 additions & 3 deletions arch/arm64/boot/dts/st/stm32mp251.dtsi
Original file line number Diff line number Diff line change
Expand Up @@ -119,9 +119,9 @@
#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 {
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