Blackfin arch: Enable BF54x PIN/GPIO interrupts

Signed-off-bu: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

diff --git a/arch/blackfin/mach-bf548/Kconfig b/arch/blackfin/mach-bf548/Kconfig
index b28625e..e78b03d 100644
--- a/arch/blackfin/mach-bf548/Kconfig
+++ b/arch/blackfin/mach-bf548/Kconfig
@@ -277,6 +277,40 @@
 
 endmenu
 
+comment "Pin Interrupt to Port Assignment"
+menu "Assignment"
+
+config PINTx_REASSIGN
+	bool "Reprogram PINT Assignment"
+	default n
+	help
+	  The interrupt assignment registers controls the pin-to-interrupt
+	  assignment in a byte-wide manner. Each option allows you to select
+	  a set of pins (High/Low Byte) of an specific Port being mapped
+	  to one of the four PIN Interrupts IRQ_PINTx.
+
+	  You shouldn't change any of these unless you know exactly what you're doing.
+	  Please consult the Blackfin BF54x Processor Hardware Reference Manual.
+
+config PINT0_ASSIGN
+	hex "PINT0_ASSIGN"
+	depends on PINTx_REASSIGN
+	default 0x00000101
+config PINT1_ASSIGN
+	hex "PINT1_ASSIGN"
+	depends on PINTx_REASSIGN
+	default 0x01010000
+config PINT2_ASSIGN
+	hex "PINT2_ASSIGN"
+	depends on PINTx_REASSIGN
+	default 0x00000101
+config PINT3_ASSIGN
+	hex "PINT3_ASSIGN"
+	depends on PINTx_REASSIGN
+	default 0x02020303
+
+endmenu
+
 endmenu
 
 endif