[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-jmr3927.c b/arch/mips/pci/fixup-jmr3927.c
index 41dcd6a..d5edaf2 100644
--- a/arch/mips/pci/fixup-jmr3927.c
+++ b/arch/mips/pci/fixup-jmr3927.c
@@ -28,36 +28,31 @@
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-
+#include <asm/txx9/pci.h>
#include <asm/txx9/jmr3927.h>
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
unsigned char irq = pin;
- /* SMSC SLC90E66 IDE uses irq 14, 15 (default) */
- if (dev->vendor == PCI_VENDOR_ID_EFAR &&
- dev->device == PCI_DEVICE_ID_EFAR_SLC90E66_1)
- return irq;
/* IRQ rotation (PICMG) */
irq--; /* 0-3 */
- if (dev->bus->parent == NULL &&
- slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(23)) {
+ if (slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(23)) {
/* PCI CardSlot (IDSEL=A23, DevNu=12) */
/* PCIA => PCIC (IDSEL=A23) */
/* NOTE: JMR3927 JP1 must be set to OPEN */
irq = (irq + 2) % 4;
- } else if (dev->bus->parent == NULL &&
- slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(22)) {
+ } else if (slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(22)) {
/* PCI CardSlot (IDSEL=A22, DevNu=11) */
/* PCIA => PCIA (IDSEL=A22) */
/* NOTE: JMR3927 JP1 must be set to OPEN */
irq = (irq + 0) % 4;
} else {
/* PCI Backplane */
- irq = (irq + 3 + slot) % 4;
+ if (txx9_pci_option & TXX9_PCI_OPT_PICMG)
+ irq = (irq + 33 - slot) % 4;
+ else
+ irq = (irq + 3 + slot) % 4;
}
irq++; /* 1-4 */
@@ -66,15 +61,13 @@
irq = JMR3927_IRQ_IOC_PCIA;
break;
case 2:
- // wrong for backplane irq = JMR3927_IRQ_IOC_PCIB;
- irq = JMR3927_IRQ_IOC_PCID;
+ irq = JMR3927_IRQ_IOC_PCIB;
break;
case 3:
irq = JMR3927_IRQ_IOC_PCIC;
break;
case 4:
- // wrong for backplane irq = JMR3927_IRQ_IOC_PCID;
- irq = JMR3927_IRQ_IOC_PCIB;
+ irq = JMR3927_IRQ_IOC_PCID;
break;
}