85xx: Introduce CONFIG_SYS_PCI*_IO_VIRT for FSL boards

Introduce a new define to seperate out the virtual address that PCI
IO space is at from the physical address.  In most situations these are
mapped 1:1.  However any code accessing the bus should use VIRT.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Andy Fleming <afleming@freescale.com>
diff --git a/include/configs/MPC8568MDS.h b/include/configs/MPC8568MDS.h
index fcaca1a..58ff52b 100644
--- a/include/configs/MPC8568MDS.h
+++ b/include/configs/MPC8568MDS.h
@@ -326,6 +326,7 @@
 #define CONFIG_SYS_PCI1_MEM_BUS	0x80000000
 #define CONFIG_SYS_PCI1_MEM_PHYS	0x80000000
 #define CONFIG_SYS_PCI1_MEM_SIZE	0x20000000	/* 512M */
+#define CONFIG_SYS_PCI1_IO_VIRT	0xe2000000
 #define CONFIG_SYS_PCI1_IO_BUS	0x00000000
 #define CONFIG_SYS_PCI1_IO_PHYS	0xe2000000
 #define CONFIG_SYS_PCI1_IO_SIZE	0x00800000	/* 8M */
@@ -334,6 +335,7 @@
 #define CONFIG_SYS_PCIE1_MEM_BUS	0xa0000000
 #define CONFIG_SYS_PCIE1_MEM_PHYS	0xa0000000
 #define CONFIG_SYS_PCIE1_MEM_SIZE	0x20000000	/* 512M */
+#define CONFIG_SYS_PCIE1_IO_VIRT	0xe2800000
 #define CONFIG_SYS_PCIE1_IO_BUS	0x00000000
 #define CONFIG_SYS_PCIE1_IO_PHYS	0xe2800000
 #define CONFIG_SYS_PCIE1_IO_SIZE	0x00800000	/* 8M */