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This patch aims to fix the GIC register ranges for Amlogic T7 SoC family. - Context Kernel log shows a warning about GIC [ 0.000000] GIC: GICv2 detected, but range too small and irqchip.gicv2_force_probe not set Using cat /proc/interrupts command shows GIC as GIC-0 Adding some peripherals sometimes causes hangs on interrupts. - According to the GIC-400 ARM doc, the memory map is like: 0x1000-0x1FFF Distributor 0x2000-0x3FFF CPU interfaces 0x4000-0x5FFF Virtual interface control block 0x6000-0x7FFF Virtual CPU interfaces - Identify GIC model from distributor register Offset | Name | Type | Reset 0x008 | GICD_IIDR | RO | 0x0200143B kvim4# md.l 0xFFF01008 1 fff01008: 0200143b - Identify CPU interface from CPU interface register Offset | Name | Type | Reset 0x00FC | GICC_IIDR | RO | 0x0202143B kvim4# md.l 0xFFF020FC 1 fff020fc: 0202143b - Virtual interface control register check Offset | Name | Type | Reset 0x004 | GICH_VTR | RO | 0x90000003 kvim4# md.l 0xFFF04004 1 fff04004: 90000003 - Virtual CPU interfaces check Offset | Name | Type | Reset 0x00FC | GICV_IIDR | RO | 0x0202143B kvim4# md.l 0xFFF060FC 1 fff060fc: 0202143b - After this patch there is no warning anymore. GICv2 is correctly identified. [ 0.000000] GIC: Using split EOI/Deactivate mode Using cat /proc/interrupts command shows GIC as GICv2 Signed-off-by: Ronald Claveau <linux-kernel-dev@aliel.fr> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patch.msgid.link/20260305-fix-amlt7-gic-dts-v1-1-5944415c74bf@aliel.fr Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
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