i2c: zynq: Add support for Xilinx Zynq

Support Xilinx Zynq i2c controller.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Tom Rini <trini@ti.com>
diff --git a/arch/arm/include/asm/arch-zynq/hardware.h b/arch/arm/include/asm/arch-zynq/hardware.h
index 8eb4e1a..6af892a 100644
--- a/arch/arm/include/asm/arch-zynq/hardware.h
+++ b/arch/arm/include/asm/arch-zynq/hardware.h
@@ -31,6 +31,8 @@
 #define ZYNQ_GEM_BASEADDR1		0xE000C000
 #define ZYNQ_SDHCI_BASEADDR0		0xE0100000
 #define ZYNQ_SDHCI_BASEADDR1		0xE0101000
+#define ZYNQ_I2C_BASEADDR0		0xE0004000
+#define ZYNQ_I2C_BASEADDR1		0xE0005000
 
 /* Reflect slcr offsets */
 struct slcr_regs {