[U-Boot] [PATCH v2] x86: som-db5800-som-6867: fix SERIRQ on reset

[George McCollister]

Explicitly enable ILB_SERIRQ function 1 in
cfio_regs_pad_ilb_serirq_PCONF0.

Pad configuration for SERIRQ is not set to enable the SERIRQ function
after a reset though strangely, it is on initial boot.

Rebooting from Linux, reset command in u-boot and even pushing the reset
button on the development board all lead to the SERIRQ function being
disabled (address 0xfed0c560 with value of 0x2003cc80).

Signed-off-by: George McCollister <george.mccollister at gmail.com>
Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
---

Changes in v2:
 - Reword commit message

 arch/x86/dts/baytrail_som-db5800-som-6867.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/x86/dts/baytrail_som-db5800-som-6867.dts b/arch/x86/dts/baytrail_som-db5800-som-6867.dts
index 64e2e52..e1d81a7 100644
--- a/arch/x86/dts/baytrail_som-db5800-som-6867.dts
+++ b/arch/x86/dts/baytrail_som-db5800-som-6867.dts
@@ -63,6 +63,12 @@
 			pad-offset = <0x270>;
 			mode-func = <2>;
 		};
+
+		/* SERIRQ */
+		soc_gpio_s0_50 at 0 {
+			pad-offset = <0x560>;
+			mode-func = <1>;
+		};
 	};
 
 	chosen {
-- 
2.8.0