[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/arch/mips/pci/fixup-rbtx4938.c b/arch/mips/pci/fixup-rbtx4938.c
index 64d4510..39c9958 100644
--- a/arch/mips/pci/fixup-rbtx4938.c
+++ b/arch/mips/pci/fixup-rbtx4938.c
@@ -10,45 +10,28 @@
* Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
*/
#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-
+#include <asm/txx9/pci.h>
#include <asm/txx9/rbtx4938.h>
-extern struct pci_controller tx4938_pci_controller[];
-
-static int pci_get_irq(const struct pci_dev *dev, int pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
- int irq = pin;
- u8 slot = PCI_SLOT(dev->devfn);
- struct pci_controller *controller = (struct pci_controller *)dev->sysdata;
+ int irq = tx4938_pcic1_map_irq(dev, slot);
- if (controller == &tx4938_pci_controller[1]) {
- /* TX4938 PCIC1 */
- switch (slot) {
- case TX4938_PCIC_IDSEL_AD_TO_SLOT(31):
- if (tx4938_ccfgptr->pcfg & TX4938_PCFG_ETH0_SEL)
- return RBTX4938_IRQ_IRC + TX4938_IR_ETH0;
- break;
- case TX4938_PCIC_IDSEL_AD_TO_SLOT(30):
- if (tx4938_ccfgptr->pcfg & TX4938_PCFG_ETH1_SEL)
- return RBTX4938_IRQ_IRC + TX4938_IR_ETH1;
- break;
- }
- return 0;
- }
-
+ if (irq >= 0)
+ return irq;
+ irq = pin;
/* IRQ rotation */
irq--; /* 0-3 */
- if (dev->bus->parent == NULL &&
- (slot == TX4938_PCIC_IDSEL_AD_TO_SLOT(23))) {
+ if (slot == TX4927_PCIC_IDSEL_AD_TO_SLOT(23)) {
/* PCI CardSlot (IDSEL=A23) */
/* PCIA => PCIA (IDSEL=A23) */
irq = (irq + 0 + slot) % 4;
} else {
/* PCI Backplane */
- irq = (irq + 33 - slot) % 4;
+ if (txx9_pci_option & TXX9_PCI_OPT_PICMG)
+ irq = (irq + 33 - slot) % 4;
+ else
+ irq = (irq + 3 + slot) % 4;
}
irq++; /* 1-4 */
@@ -69,19 +52,6 @@
return irq;
}
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
- unsigned char irq = 0;
-
- irq = pci_get_irq(dev, pin);
-
- printk(KERN_INFO "PCI: 0x%02x:0x%02x(0x%02x,0x%02x) IRQ=%d\n",
- dev->bus->number, dev->devfn, PCI_SLOT(dev->devfn),
- PCI_FUNC(dev->devfn), irq);
-
- return irq;
-}
-
/*
* Do platform specific device initialization at pci_enable_device() time
*/