zynq: use pl310 device tree bindings

The Zynq has a PL310 L2 cache controller.  Convert in-tree uses to using
the device tree.

Signed-off-by: Josh Cartwright <josh.cartwright@ni.com>
Cc: John Linn <john.linn@xilinx.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c
index d73963b..056091a 100644
--- a/arch/arm/mach-zynq/common.c
+++ b/arch/arm/mach-zynq/common.c
@@ -45,12 +45,10 @@
  */
 static void __init xilinx_init_machine(void)
 {
-#ifdef CONFIG_CACHE_L2X0
 	/*
 	 * 64KB way size, 8-way associativity, parity disabled
 	 */
-	l2x0_init(PL310_L2CC_BASE, 0x02060000, 0xF0F0FFFF);
-#endif
+	l2x0_of_init(0x02060000, 0xF0F0FFFF);
 
 	of_platform_bus_probe(NULL, zynq_of_bus_ids, NULL);
 }
@@ -83,11 +81,6 @@
 		.pfn		= __phys_to_pfn(SCU_PERIPH_PHYS),
 		.length		= SZ_8K,
 		.type		= MT_DEVICE,
-	}, {
-		.virtual	= PL310_L2CC_VIRT,
-		.pfn		= __phys_to_pfn(PL310_L2CC_PHYS),
-		.length		= SZ_4K,
-		.type		= MT_DEVICE,
 	},
 
 #ifdef CONFIG_DEBUG_LL