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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-15 15:01:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-15 15:01:29 -0700
commit7e2225d860772aaa07e1cebca6a5aa6f93f9aa91 (patch)
tree8a4c3076c2043d011fcf2357835f4f16be7606a7 /arch/mips/pci/fixup-rbtx4927.c
parent3a628b0fd42f7eaf9d052447784d48ceae9ffb8e (diff)
parentb27418aa551a153e8bf1bd16cf93e5786f9590a9 (diff)
downloadtalos-op-linux-7e2225d860772aaa07e1cebca6a5aa6f93f9aa91.tar.gz
talos-op-linux-7e2225d860772aaa07e1cebca6a5aa6f93f9aa91.zip
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (54 commits) [MIPS] Remove mips_machtype for LASAT machines [MIPS] Remove mips_machtype from EMMA2RH machines [MIPS] Remove mips_machtype from ARC based machines [MIPS] MTX-1 flash partition setup move to platform devices registration [MIPS] TXx9: cleanup and fix some sparse warnings [MIPS] TXx9: rename asm-mips/mach-jmr3927 to asm-mips/mach-tx39xx [MIPS] remove machtype for group Toshiba [MIPS] separate rbtx4927_time_init() and rbtx4937_time_init() [MIPS] separate rbtx4927_arch_init() and rbtx4937_arch_init() [MIPS] txx9_cpu_clock setup move to rbtx4927_time_init() [MIPS] txx9_board_vec set directly without mips_machtype [MIPS] IP22: Add platform device for Indy volume buttons [MIPS] cmbvr4133: Remove support [MIPS] remove wrppmc_machine_power_off() [MIPS] replace inline assembler to cpu_wait() [MIPS] IP22/28: Add platform devices for HAL2 [MIPS] TXx9: Update and merge defconfigs [MIPS] TXx9: Make single kernel can support multiple boards [MIPS] TXx9: Update defconfigs [MIPS] TXx9: Reorganize PCI code ...
Diffstat (limited to 'arch/mips/pci/fixup-rbtx4927.c')
-rw-r--r--arch/mips/pci/fixup-rbtx4927.c119
1 files changed, 26 insertions, 93 deletions
diff --git a/arch/mips/pci/fixup-rbtx4927.c b/arch/mips/pci/fixup-rbtx4927.c
index 7450c335b387..321db265829c 100644
--- a/arch/mips/pci/fixup-rbtx4927.c
+++ b/arch/mips/pci/fixup-rbtx4927.c
@@ -33,108 +33,41 @@
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
+#include <asm/txx9/pci.h>
+#include <asm/txx9/rbtx4927.h>
-#include <asm/tx4927/tx4927.h>
-#include <asm/tx4927/tx4927_pci.h>
-
-#undef DEBUG
-#ifdef DEBUG
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-/* look up table for backplane pci irq for slots 17-20 by pin # */
-static unsigned char backplane_pci_irq[4][4] = {
- /* PJ6 SLOT: 17, PIN: 1 */ {TX4927_IRQ_IOC_PCIA,
- /* PJ6 SLOT: 17, PIN: 2 */
- TX4927_IRQ_IOC_PCIB,
- /* PJ6 SLOT: 17, PIN: 3 */
- TX4927_IRQ_IOC_PCIC,
- /* PJ6 SLOT: 17, PIN: 4 */
- TX4927_IRQ_IOC_PCID},
- /* SB SLOT: 18, PIN: 1 */ {TX4927_IRQ_IOC_PCIB,
- /* SB SLOT: 18, PIN: 2 */
- TX4927_IRQ_IOC_PCIC,
- /* SB SLOT: 18, PIN: 3 */
- TX4927_IRQ_IOC_PCID,
- /* SB SLOT: 18, PIN: 4 */
- TX4927_IRQ_IOC_PCIA},
- /* PJ5 SLOT: 19, PIN: 1 */ {TX4927_IRQ_IOC_PCIC,
- /* PJ5 SLOT: 19, PIN: 2 */
- TX4927_IRQ_IOC_PCID,
- /* PJ5 SLOT: 19, PIN: 3 */
- TX4927_IRQ_IOC_PCIA,
- /* PJ5 SLOT: 19, PIN: 4 */
- TX4927_IRQ_IOC_PCIB},
- /* PJ4 SLOT: 20, PIN: 1 */ {TX4927_IRQ_IOC_PCID,
- /* PJ4 SLOT: 20, PIN: 2 */
- TX4927_IRQ_IOC_PCIA,
- /* PJ4 SLOT: 20, PIN: 3 */
- TX4927_IRQ_IOC_PCIB,
- /* PJ4 SLOT: 20, PIN: 4 */
- TX4927_IRQ_IOC_PCIC}
-};
-
-static int pci_get_irq(const struct pci_dev *dev, int pin)
+int __init rbtx4927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
unsigned char irq = pin;
- DBG("pci_get_irq: pin is %d\n", pin);
/* IRQ rotation */
irq--; /* 0-3 */
- if (dev->bus->parent == NULL &&
- PCI_SLOT(dev->devfn) == TX4927_PCIC_IDSEL_AD_TO_SLOT(23)) {
- printk("Onboard PCI_SLOT(dev->devfn) is %d\n",
- PCI_SLOT(dev->devfn));
- /* IDSEL=A23 is tx4927 onboard pci slot */
- irq = (irq + PCI_SLOT(dev->devfn)) % 4;
- irq++; /* 1-4 */
- DBG("irq is now %d\n", irq);
-
- switch (irq) {
- case 1:
- irq = TX4927_IRQ_IOC_PCIA;
- break;
- case 2:
- irq = TX4927_IRQ_IOC_PCIB;
- break;
- case 3:
- irq = TX4927_IRQ_IOC_PCIC;
- break;
- case 4:
- irq = TX4927_IRQ_IOC_PCID;
- break;
- }
+ if (slot == TX4927_PCIC_IDSEL_AD_TO_SLOT(23)) {
+ /* PCI CardSlot (IDSEL=A23) */
+ /* PCIA => PCIA */
+ irq = (irq + 0 + slot) % 4;
} else {
/* PCI Backplane */
- DBG("PCI Backplane PCI_SLOT(dev->devfn) is %d\n",
- PCI_SLOT(dev->devfn));
- irq = backplane_pci_irq[PCI_SLOT(dev->devfn) - 17][irq];
+ if (txx9_pci_option & TXX9_PCI_OPT_PICMG)
+ irq = (irq + 33 - slot) % 4;
+ else
+ irq = (irq + 3 + slot) % 4;
}
- DBG("assigned irq %d\n", irq);
- return irq;
-}
-
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
- unsigned char irq;
-
- printk("PCI Setup for pin %d \n", pin);
-
- if (dev->device == 0x9130) /* IDE */
- irq = 14;
- else
- irq = pci_get_irq(dev, pin);
+ irq++; /* 1-4 */
+ switch (irq) {
+ case 1:
+ irq = RBTX4927_IRQ_IOC_PCIA;
+ break;
+ case 2:
+ irq = RBTX4927_IRQ_IOC_PCIB;
+ break;
+ case 3:
+ irq = RBTX4927_IRQ_IOC_PCIC;
+ break;
+ case 4:
+ irq = RBTX4927_IRQ_IOC_PCID;
+ break;
+ }
return irq;
}
-
-/* Do platform specific device initialization at pci_enable_device() time */
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
- return 0;
-}
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