arm64: dts: r8a7795: Add GIC-400 virtual interfaces

Besides the distributor and the CPU interface the GIC-400 additionally supports the virtual interface control blocks and the virtual CPU interfaces.

Add the physical base addresses and size for these.

See

http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0471b/index.html
-> 3.2. GIC-400 register map

and Linux kernel's

Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt

for more details.

For the at GICH Virtual interface control blocks at 0xf1040000 cover the whole 128kB (0x20000) range. This is done based on the advice from Marc Zyngier http://www.spinics.net/lists/arm-kernel/msg483139.html

Signed-off-by Dirk Behme <[email protected]>

---
Changes in v2: Extend the GICH size to 128kB.

 arch/arm64/boot/dts/renesas/r8a7795.dtsi | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

arch/arm64/boot/dts/renesas/r8a7795.dtsi +3 -2

index 8f1ed23..65f9cc8 100644
@@ -130,7 +130,9 @@
                        #address-cells = <0>;
                        interrupt-controller;
                        reg = <0x0 0xf1010000 0 0x1000>,
-                             <0x0 0xf1020000 0 0x2000>;
+                             <0x0 0xf1020000 0 0x2000>,
+                             <0x0 0xf1040000 0 0x20000>,
+                             <0x0 0xf1060000 0 0x2000>;
                        interrupts = <GIC_PPI 9
                                        (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
                };
--

2.5.1

CC Marc

Quoted 20 lines · Dirk Behme

Besides the distributor and the CPU interface the GIC-400 additionally supports the virtual interface control blocks and the virtual CPU interfaces.

Add the physical base addresses and size for these.

See

http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0471b/index.html
-> 3.2. GIC-400 register map

and Linux kernel's

Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt

for more details.

For the at GICH Virtual interface control blocks at 0xf1040000 cover the whole 128kB (0x20000) range. This is done based on the advice from Marc Zyngier http://www.spinics.net/lists/arm-kernel/msg483139.html

Quoted 1 line

Signed-off-by Dirk Behme <[email protected]>

Thanks!

Acked-by Geert Uytterhoeven <[email protected]>