[MIPS] TXx9: Reorganize PCI code

Split out PCIC dependent code and SoC dependent code from board dependent
code.  Now TX4927 PCIC code is independent from TX4927/TX4938 SoC code.
Also fix some build problems on CONFIG_PCI=n.

As a bonus, "FPCIB0 Backplane Support" is available for all TX39/TX49 boards
and PCI66 support is available for all TX49 boards.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/txx9/rbtx4927.h b/include/asm-mips/txx9/rbtx4927.h
index 5531342..5b6f488 100644
--- a/include/asm-mips/txx9/rbtx4927.h
+++ b/include/asm-mips/txx9/rbtx4927.h
@@ -29,10 +29,33 @@
 
 #include <asm/txx9/tx4927.h>
 
+#define RBTX4927_PCIMEM		0x08000000
+#define RBTX4927_PCIMEM_SIZE	0x08000000
+#define RBTX4927_PCIIO		0x16000000
+#define RBTX4927_PCIIO_SIZE	0x01000000
+
+#define rbtx4927_pcireset_addr	((__u8 __iomem *)0xbc00f006UL)
+
+/* bits for ISTAT/IMASK/IMSTAT */
+#define RBTX4927_INTB_PCID	0
+#define RBTX4927_INTB_PCIC	1
+#define RBTX4927_INTB_PCIB	2
+#define RBTX4927_INTB_PCIA	3
+#define RBTX4927_INTF_PCID	(1 << RBTX4927_INTB_PCID)
+#define RBTX4927_INTF_PCIC	(1 << RBTX4927_INTB_PCIC)
+#define RBTX4927_INTF_PCIB	(1 << RBTX4927_INTB_PCIB)
+#define RBTX4927_INTF_PCIA	(1 << RBTX4927_INTB_PCIA)
+
+#define RBTX4927_IRQ_IOC	(TX4927_IRQ_PIC_BEG + TX4927_NUM_IR)
+#define RBTX4927_IRQ_IOC_PCID	(RBTX4927_IRQ_IOC + RBTX4927_INTB_PCID)
+#define RBTX4927_IRQ_IOC_PCIC	(RBTX4927_IRQ_IOC + RBTX4927_INTB_PCIC)
+#define RBTX4927_IRQ_IOC_PCIB	(RBTX4927_IRQ_IOC + RBTX4927_INTB_PCIB)
+#define RBTX4927_IRQ_IOC_PCIA	(RBTX4927_IRQ_IOC + RBTX4927_INTB_PCIA)
+
 #ifdef CONFIG_PCI
-#define TBTX4927_ISA_IO_OFFSET TX4927_PCIIO
+#define RBTX4927_ISA_IO_OFFSET RBTX4927_PCIIO
 #else
-#define TBTX4927_ISA_IO_OFFSET 0
+#define RBTX4927_ISA_IO_OFFSET 0
 #endif
 
 #define RBTX4927_SW_RESET_DO         (void __iomem *)0xbc00f000UL
@@ -41,7 +64,7 @@
 #define RBTX4927_SW_RESET_ENABLE     (void __iomem *)0xbc00f002UL
 #define RBTX4927_SW_RESET_ENABLE_SET            0x01
 
-#define RBTX4927_RTL_8019_BASE (0x1c020280-TBTX4927_ISA_IO_OFFSET)
+#define RBTX4927_RTL_8019_BASE (0x1c020280 - RBTX4927_ISA_IO_OFFSET)
 #define RBTX4927_RTL_8019_IRQ  (TX4927_IRQ_PIC_BEG + 5)
 
 int toshiba_rbtx4927_irq_nested(int sw_irq);