microblaze: Remove unused prom_parse.c

of_parse_dma_window is completely unused.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/microblaze/kernel/Makefile

@@ -16,7 +16,7 @@ extra-y := head.o vmlinux.lds
 
 obj-y += dma.o exceptions.o \
 	hw_exception_handler.o intc.o irq.o \
-	platform.o process.o prom.o prom_parse.o ptrace.o \
+	platform.o process.o prom.o ptrace.o \
 	reset.o setup.o signal.o sys_microblaze.o timer.o traps.o unwind.o
 
 obj-y += cpu/

arch/microblaze/kernel/prom_parse.c

-#undef DEBUG
-
-#include <linux/export.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/ioport.h>
-#include <linux/etherdevice.h>
-#include <linux/of_address.h>
-#include <asm/prom.h>
-
-void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
-		unsigned long *busno, unsigned long *phys, unsigned long *size)
-{
-	const u32 *dma_window;
-	u32 cells;
-	const unsigned char *prop;
-
-	dma_window = dma_window_prop;
-
-	/* busno is always one cell */
-	*busno = *(dma_window++);
-
-	prop = of_get_property(dn, "ibm,#dma-address-cells", NULL);
-	if (!prop)
-		prop = of_get_property(dn, "#address-cells", NULL);
-
-	cells = prop ? *(u32 *)prop : of_n_addr_cells(dn);
-	*phys = of_read_number(dma_window, cells);
-
-	dma_window += cells;
-
-	prop = of_get_property(dn, "ibm,#dma-size-cells", NULL);
-	cells = prop ? *(u32 *)prop : of_n_size_cells(dn);
-	*size = of_read_number(dma_window, cells);
-}