spi: Add zynq spi controller driver

Zynq spi controller driver supports 2 buses and
3 chipselects on each bus.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Acked-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/include/asm/arch-zynq/hardware.h b/arch/arm/include/asm/arch-zynq/hardware.h
index 25f0e3d..081624e 100644
--- a/arch/arm/include/asm/arch-zynq/hardware.h
+++ b/arch/arm/include/asm/arch-zynq/hardware.h
@@ -17,6 +17,8 @@
 #define ZYNQ_SDHCI_BASEADDR1		0xE0101000
 #define ZYNQ_I2C_BASEADDR0		0xE0004000
 #define ZYNQ_I2C_BASEADDR1		0xE0005000
+#define ZYNQ_SPI_BASEADDR0		0xE0006000
+#define ZYNQ_SPI_BASEADDR1		0xE0007000
 
 /* Reflect slcr offsets */
 struct slcr_regs {