MIPS: Add support for NXP PNX833x (STB222/5) into linux kernel

The following patch add support for the NXP PNX833x SOC.  More
specifically it adds support for the STB222/5 variant. It fixes
the vectored interrupt issue.

Signed-off-by: daniel.j.laird <daniel.j.laird@nxp.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/Kconfig

@@ -261,6 +261,19 @@ config MACH_VR41XX
 	select SYS_HAS_CPU_VR41XX
 	select GENERIC_HARDIRQS_NO__DO_IRQ
 
+config NXP_STB220
+	bool "NXP STB220 board"
+	select SOC_PNX833X
+	help
+	 Support for NXP Semiconductors STB220 Development Board.
+
+config NXP_STB225
+	bool "NXP 225 board"
+	select SOC_PNX833X
+	select SOC_PNX8335
+	help
+	 Support for NXP Semiconductors STB225 Development Board.
+
 config PNX8550_JBS
 	bool "NXP PNX8550 based JBS board"
 	select PNX8550
@@ -849,6 +862,24 @@ config MIPS_RM9122
 	bool
 	select SERIAL_RM9000
 
+config SOC_PNX833X
+	bool
+	select CEVT_R4K
+	select CSRC_R4K
+	select IRQ_CPU
+	select DMA_NONCOHERENT
+	select SYS_HAS_CPU_MIPS32_R2
+	select SYS_SUPPORTS_32BIT_KERNEL
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_SUPPORTS_BIG_ENDIAN
+	select GENERIC_HARDIRQS_NO__DO_IRQ
+	select GENERIC_GPIO
+	select CPU_MIPSR2_IRQ_VI
+
+config SOC_PNX8335
+	bool
+	select SOC_PNX833X
+
 config PNX8550
 	bool
 	select SOC_PNX8550

arch/mips/Makefile

@@ -381,6 +381,14 @@ load-$(CONFIG_CASIO_E55)	+= 0xffffffff80004000
 #
 load-$(CONFIG_TANBAC_TB022X)	+= 0xffffffff80000000
 
+# NXP STB225
+core-$(CONFIG_SOC_PNX833X)		+= arch/mips/nxp/pnx833x/common/
+cflags-$(CONFIG_SOC_PNX833X)	+= -Iarch/mips/include/asm/mach-pnx833x
+libs-$(CONFIG_NXP_STB220)		+= arch/mips/nxp/pnx833x/stb22x/
+load-$(CONFIG_NXP_STB220)		+= 0xffffffff80001000
+libs-$(CONFIG_NXP_STB225)		+= arch/mips/nxp/pnx833x/stb22x/
+load-$(CONFIG_NXP_STB225)		+= 0xffffffff80001000
+
 #
 # Common NXP PNX8550
 #