mpc8641: Make PCI and RIO mutually exclusive, fix non-PCI build

You can't actually have both, and with some coming changes to
change the memory map for the board and support 36-bit physical,
we need the extra BAT that is being consumed by having both.

I also make non-PCI configs build cleanly, for the sake of sanity.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
diff --git a/board/freescale/mpc8641hpcn/law.c b/board/freescale/mpc8641hpcn/law.c
index 8e13728..1ad186c 100644
--- a/board/freescale/mpc8641hpcn/law.c
+++ b/board/freescale/mpc8641hpcn/law.c
@@ -49,13 +49,16 @@
 #if !defined(CONFIG_SPD_EEPROM)
 	SET_LAW(CONFIG_SYS_DDR_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_DDR_1),
 #endif
+#ifdef CONFIG_PCI
 	SET_LAW(CONFIG_SYS_PCI1_MEM_BASE, LAW_SIZE_512M, LAW_TRGT_IF_PCI_1),
 	SET_LAW(CONFIG_SYS_PCI2_MEM_BASE, LAW_SIZE_512M, LAW_TRGT_IF_PCI_2),
-	SET_LAW(PIXIS_BASE, LAW_SIZE_2M, LAW_TRGT_IF_LBC),
 	SET_LAW(CONFIG_SYS_PCI1_IO_PHYS, LAW_SIZE_16M, LAW_TRGT_IF_PCI_1),
 	SET_LAW(CONFIG_SYS_PCI2_IO_PHYS, LAW_SIZE_16M, LAW_TRGT_IF_PCI_2),
+#elif defined(CONFIG_RIO)
+	SET_LAW(CONFIG_SYS_RIO_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_RIO),
+#endif
+	SET_LAW(PIXIS_BASE, LAW_SIZE_2M, LAW_TRGT_IF_LBC),
 	SET_LAW((CONFIG_SYS_FLASH_BASE & 0xfe000000), LAW_SIZE_32M, LAW_TRGT_IF_LBC),
-	SET_LAW(CONFIG_SYS_RIO_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_RIO)
 };
 
 int num_law_entries = ARRAY_SIZE(law_table);
diff --git a/board/freescale/mpc8641hpcn/mpc8641hpcn.c b/board/freescale/mpc8641hpcn/mpc8641hpcn.c
index a03ca74..5af5c4b 100644
--- a/board/freescale/mpc8641hpcn/mpc8641hpcn.c
+++ b/board/freescale/mpc8641hpcn/mpc8641hpcn.c
@@ -135,17 +135,16 @@
 
 void pci_init_board(void)
 {
-	volatile immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
-	volatile ccsr_gur_t *gur = &immap->im_gur;
-	uint devdisr = gur->devdisr;
-	uint io_sel = (gur->pordevsr & MPC8641_PORDEVSR_IO_SEL)
-		>> MPC8641_PORDEVSR_IO_SEL_SHIFT;
-
 #ifdef CONFIG_PCI1
 {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI1_ADDR;
 	struct pci_controller *hose = &pci1_hose;
 	struct pci_region *r = hose->regions;
+	volatile immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
+	volatile ccsr_gur_t *gur = &immap->im_gur;
+	uint devdisr = gur->devdisr;
+	uint io_sel = (gur->pordevsr & MPC8641_PORDEVSR_IO_SEL)
+		>> MPC8641_PORDEVSR_IO_SEL_SHIFT;
 
 #ifdef DEBUG
 	uint host1_agent = (gur->porbmsr & MPC8641_PORBMSR_HA)