misc: Add CARMA DATA-FPGA Programmer support

This adds support for programming the data processing FPGAs on the OVRO
CARMA board. These FPGAs have a special programming sequence that
requires that we program the Freescale DMA engine, which is only
available inside the kernel.

Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

drivers/misc/carma/Kconfig

@@ -7,3 +7,11 @@ config CARMA_FPGA
 	  Say Y here to include support for communicating with the data
 	  processing FPGAs on the OVRO CARMA board.
 
+config CARMA_FPGA_PROGRAM
+	tristate "CARMA DATA-FPGA Programmer"
+	depends on FSL_SOC && PPC_83xx && MEDIA_SUPPORT && HAS_DMA && FSL_DMA
+	select VIDEOBUF_DMA_SG
+	default n
+	help
+	  Say Y here to include support for programming the data processing
+	  FPGAs on the OVRO CARMA board.

drivers/misc/carma/Makefile

@@ -1 +1,2 @@
 obj-$(CONFIG_CARMA_FPGA)		+= carma-fpga.o
+obj-$(CONFIG_CARMA_FPGA_PROGRAM)	+= carma-fpga-program.o