diff options
| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2008-07-10 17:33:08 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2008-07-15 19:44:35 +0200 |
| commit | 89d63fe179520b11f54de1f26755b7444c79e73a (patch) | |
| tree | fede06c5648335652c864fc35c951d991cbab183 /arch/mips/pci/fixup-rbtx4938.c | |
| parent | [MIPS] TXx9: Reorganize code (diff) | |
| download | linux-89d63fe179520b11f54de1f26755b7444c79e73a.tar.xz linux-89d63fe179520b11f54de1f26755b7444c79e73a.zip | |
[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>
Diffstat (limited to 'arch/mips/pci/fixup-rbtx4938.c')
| -rw-r--r-- | arch/mips/pci/fixup-rbtx4938.c | 52 |
1 files changed, 11 insertions, 41 deletions
diff --git a/arch/mips/pci/fixup-rbtx4938.c b/arch/mips/pci/fixup-rbtx4938.c index 64d4510c0265..39c995830384 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; - - 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; - } + int irq = tx4938_pcic1_map_irq(dev, slot); + 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 @@ static int pci_get_irq(const struct pci_dev *dev, int pin) 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 */ |