ARM: dts: TS-4800: add FPGA's IRQ controller support

Enable FPGA's IRQ controller. It is in charge of dispatching interrupts
generated by IPs in the FPGA. The SoC is notified that an interrupt
occurred through a GPIO.

Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

1 files changed, 17 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx51-ts4800.dts b/arch/arm/boot/dts/imx51-ts4800.dts
index 0ff76a1bc0f1..0e80fb7bfb2d 100644
--- a/arch/arm/boot/dts/imx51-ts4800.dts
+++ b/arch/arm/boot/dts/imx51-ts4800.dts
@@ -165,6 +165,17 @@
                         reg = <0x12000 0x1000>;
                         syscon = <&syscon 0x10 6>;
                 };
+
+                fpga_irqc: fpga-irqc@15000 {
+                        compatible = "technologic,ts4800-irqc";
+                        reg = <0x15000 0x1000>;
+                        pinctrl-names = "default";
+                        pinctrl-0 = <&pinctrl_interrupt_fpga>;
+                        interrupt-parent = <&gpio2>;
+                        interrupts= <9 IRQ_TYPE_LEVEL_HIGH>;
+                        interrupt-controller;
+                        #interrupt-cells = <1>;
+                };
         };
 };
 
@@ -228,6 +239,12 @@
                 >;
         };
 
+        pinctrl_interrupt_fpga: fpgaicgrp {
+                fsl,pins = <
+                        MX51_PAD_EIM_D27__GPIO2_9               0xe5
+                >;
+        };
+
         pinctrl_lcd: lcdgrp {
                 fsl,pins = <
                         MX51_PAD_DISP1_DAT0__DISP1_DAT0         0x5