diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-15 20:01:36 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-15 20:01:36 -0700 |
commit | d10902812c9cd5583130a4ebb9ad19c60b68149d (patch) | |
tree | b1b28587970e8cebf74ba4d61edf49537f619ab7 /arch/powerpc | |
parent | 181f977d134a9f8e3f8839f42af655b045fc059e (diff) | |
parent | 25874a299ef8037df03ce4ada570bc4e42f9748f (diff) |
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (27 commits)
x86: Clean up apic.c and apic.h
x86: Remove superflous goal definition of tsc_sync
x86: dt: Correct local apic documentation in device tree bindings
x86: dt: Cleanup local apic setup
x86: dt: Fix OLPC=y/INTEL_CE=n build
rtc: cmos: Add OF bindings
x86: ce4100: Use OF to setup devices
x86: ioapic: Add OF bindings for IO_APIC
x86: dtb: Add generic bus probe
x86: dtb: Add support for PCI devices backed by dtb nodes
x86: dtb: Add device tree support for HPET
x86: dtb: Add early parsing of IO_APIC
x86: dtb: Add irq domain abstraction
x86: dtb: Add a device tree for CE4100
x86: Add device tree support
x86: e820: Remove conditional early mapping in parse_e820_ext
x86: OLPC: Make OLPC=n build again
x86: OLPC: Remove extra OLPC_OPENFIRMWARE_DT indirection
x86: OLPC: Cleanup config maze completely
x86: OLPC: Hide OLPC_OPENFIRMWARE config switch
...
Fix up conflicts in arch/x86/platform/ce4100/ce4100.c
Diffstat (limited to 'arch/powerpc')
-rw-r--r-- | arch/powerpc/include/asm/pci-bridge.h | 10 | ||||
-rw-r--r-- | arch/powerpc/include/asm/prom.h | 15 | ||||
-rw-r--r-- | arch/powerpc/kernel/pci-common.c | 1 | ||||
-rw-r--r-- | arch/powerpc/kernel/prom_parse.c | 84 |
4 files changed, 11 insertions, 99 deletions
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 51e9e6f90d12..edeb80fdd2c3 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -171,6 +171,16 @@ static inline struct pci_controller *pci_bus_to_host(const struct pci_bus *bus) return bus->sysdata; } +static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus) +{ + struct pci_controller *host; + + if (bus->self) + return pci_device_to_OF_node(bus->self); + host = pci_bus_to_host(bus); + return host ? host->dn : NULL; +} + static inline int isa_vaddr_is_ioport(void __iomem *address) { /* No specific ISA handling on ppc32 at this stage, it diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h index d72757585595..c189aa5fe1f4 100644 --- a/arch/powerpc/include/asm/prom.h +++ b/arch/powerpc/include/asm/prom.h @@ -70,21 +70,6 @@ static inline int of_node_to_nid(struct device_node *device) { return 0; } #endif #define of_node_to_nid of_node_to_nid -/** - * of_irq_map_pci - Resolve the interrupt for a PCI device - * @pdev: the device whose interrupt is to be resolved - * @out_irq: structure of_irq filled by this function - * - * This function resolves the PCI interrupt for a given PCI device. If a - * device-node exists for a given pci_dev, it will use normal OF tree - * walking. If not, it will implement standard swizzling and walk up the - * PCI tree until an device-node is found, at which point it will finish - * resolving using the OF tree walking. - */ -struct pci_dev; -struct of_irq; -extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq); - extern void of_instantiate_rtc(void); /* These includes are put at the bottom because they may contain things diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 10a44e68ef11..eb341be9a4d9 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -22,6 +22,7 @@ #include <linux/init.h> #include <linux/bootmem.h> #include <linux/of_address.h> +#include <linux/of_pci.h> #include <linux/mm.h> #include <linux/list.h> #include <linux/syscalls.h> diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c index c2b7a07cc3d3..47187cc2cf00 100644 --- a/arch/powerpc/kernel/prom_parse.c +++ b/arch/powerpc/kernel/prom_parse.c @@ -2,95 +2,11 @@ #include <linux/kernel.h> #include <linux/string.h> -#include <linux/pci_regs.h> #include <linux/module.h> #include <linux/ioport.h> #include <linux/etherdevice.h> #include <linux/of_address.h> #include <asm/prom.h> -#include <asm/pci-bridge.h> - -#ifdef CONFIG_PCI -int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq) -{ - struct device_node *dn, *ppnode; - struct pci_dev *ppdev; - u32 lspec; - u32 laddr[3]; - u8 pin; - int rc; - - /* Check if we have a device node, if yes, fallback to standard OF - * parsing - */ - dn = pci_device_to_OF_node(pdev); - if (dn) { - rc = of_irq_map_one(dn, 0, out_irq); - if (!rc) - return rc; - } - - /* Ok, we don't, time to have fun. Let's start by building up an - * interrupt spec. we assume #interrupt-cells is 1, which is standard - * for PCI. If you do different, then don't use that routine. - */ - rc = pci_read_config_byte(pdev, PCI_INTERRUPT_PIN, &pin); - if (rc != 0) - return rc; - /* No pin, exit */ - if (pin == 0) - return -ENODEV; - - /* Now we walk up the PCI tree */ - lspec = pin; - for (;;) { - /* Get the pci_dev of our parent */ - ppdev = pdev->bus->self; - - /* Ouch, it's a host bridge... */ - if (ppdev == NULL) { -#ifdef CONFIG_PPC64 - ppnode = pci_bus_to_OF_node(pdev->bus); -#else - struct pci_controller *host; - host = pci_bus_to_host(pdev->bus); - ppnode = host ? host->dn : NULL; -#endif - /* No node for host bridge ? give up */ - if (ppnode == NULL) - return -EINVAL; - } else - /* We found a P2P bridge, check if it has a node */ - ppnode = pci_device_to_OF_node(ppdev); - - /* Ok, we have found a parent with a device-node, hand over to - * the OF parsing code. - * We build a unit address from the linux device to be used for - * resolution. Note that we use the linux bus number which may - * not match your firmware bus numbering. - * Fortunately, in most cases, interrupt-map-mask doesn't include - * the bus number as part of the matching. - * You should still be careful about that though if you intend - * to rely on this function (you ship a firmware that doesn't - * create device nodes for all PCI devices). - */ - if (ppnode) - break; - - /* We can only get here if we hit a P2P bridge with no node, - * let's do standard swizzling and try again - */ - lspec = pci_swizzle_interrupt_pin(pdev, lspec); - pdev = ppdev; - } - - laddr[0] = (pdev->bus->number << 16) - | (pdev->devfn << 8); - laddr[1] = laddr[2] = 0; - return of_irq_map_raw(ppnode, &lspec, 1, laddr, out_irq); -} -EXPORT_SYMBOL_GPL(of_irq_map_pci); -#endif /* CONFIG_PCI */ void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop, unsigned long *busno, unsigned long *phys, unsigned long *size) |