ARM: DaVinci: IRAM alloc/free routines

This adds IRAM allocation and free routines which
will be used to fix audio underrun/overrun problems.
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>

arch/arm/mach-davinci/Makefile

@@ -5,7 +5,7 @@
 
 # Common objects
 obj-y 			:= time.o irq.o clock.o serial.o io.o id.o psc.o \
-			   gpio.o mux.o devices.o usb.o dma.o common.o
+			   gpio.o mux.o devices.o usb.o dma.o common.o iram.o
 
 # Board specific
 obj-$(CONFIG_MACH_DAVINCI_EVM)  	+= board-evm.o

arch/arm/mach-davinci/include/mach/edma.h

@@ -560,4 +560,7 @@ void davinci_free_dma(int lch);
  * DMA channel
  **/
 void davinci_dma_getposition(int lch, dma_addr_t *src, dma_addr_t *dst);
+
+int davinci_alloc_iram(unsigned size);
+void davinci_free_iram(unsigned addr, unsigned size);
 #endif