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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-15 23:01:36 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-15 23:01:36 -0400
commitd10902812c9cd5583130a4ebb9ad19c60b68149d (patch)
treeb1b28587970e8cebf74ba4d61edf49537f619ab7 /arch/powerpc/kernel
parent181f977d134a9f8e3f8839f42af655b045fc059e (diff)
parent25874a299ef8037df03ce4ada570bc4e42f9748f (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/kernel')
-rw-r--r--arch/powerpc/kernel/pci-common.c1
-rw-r--r--arch/powerpc/kernel/prom_parse.c84
2 files changed, 1 insertions, 84 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 10a44e68ef1..eb341be9a4d 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -22,6 +22,7 @@
22#include <linux/init.h> 22#include <linux/init.h>
23#include <linux/bootmem.h> 23#include <linux/bootmem.h>
24#include <linux/of_address.h> 24#include <linux/of_address.h>
25#include <linux/of_pci.h>
25#include <linux/mm.h> 26#include <linux/mm.h>
26#include <linux/list.h> 27#include <linux/list.h>
27#include <linux/syscalls.h> 28#include <linux/syscalls.h>
diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index c2b7a07cc3d..47187cc2cf0 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -2,95 +2,11 @@
2 2
3#include <linux/kernel.h> 3#include <linux/kernel.h>
4#include <linux/string.h> 4#include <linux/string.h>
5#include <linux/pci_regs.h>
6#include <linux/module.h> 5#include <linux/module.h>
7#include <linux/ioport.h> 6#include <linux/ioport.h>
8#include <linux/etherdevice.h> 7#include <linux/etherdevice.h>
9#include <linux/of_address.h> 8#include <linux/of_address.h>
10#include <asm/prom.h> 9#include <asm/prom.h>
11#include <asm/pci-bridge.h>
12
13#ifdef CONFIG_PCI
14int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
15{
16 struct device_node *dn, *ppnode;
17 struct pci_dev *ppdev;
18 u32 lspec;
19 u32 laddr[3];
20 u8 pin;
21 int rc;
22
23 /* Check if we have a device node, if yes, fallback to standard OF
24 * parsing
25 */
26 dn = pci_device_to_OF_node(pdev);
27 if (dn) {
28 rc = of_irq_map_one(dn, 0, out_irq);
29 if (!rc)
30 return rc;
31 }
32
33 /* Ok, we don't, time to have fun. Let's start by building up an
34 * interrupt spec. we assume #interrupt-cells is 1, which is standard
35 * for PCI. If you do different, then don't use that routine.
36 */
37 rc = pci_read_config_byte(pdev, PCI_INTERRUPT_PIN, &pin);
38 if (rc != 0)
39 return rc;
40 /* No pin, exit */
41 if (pin == 0)
42 return -ENODEV;
43
44 /* Now we walk up the PCI tree */
45 lspec = pin;
46 for (;;) {
47 /* Get the pci_dev of our parent */
48 ppdev = pdev->bus->self;
49
50 /* Ouch, it's a host bridge... */
51 if (ppdev == NULL) {
52#ifdef CONFIG_PPC64
53 ppnode = pci_bus_to_OF_node(pdev->bus);
54#else
55 struct pci_controller *host;
56 host = pci_bus_to_host(pdev->bus);
57 ppnode = host ? host->dn : NULL;
58#endif
59 /* No node for host bridge ? give up */
60 if (ppnode == NULL)
61 return -EINVAL;
62 } else
63 /* We found a P2P bridge, check if it has a node */
64 ppnode = pci_device_to_OF_node(ppdev);
65
66 /* Ok, we have found a parent with a device-node, hand over to
67 * the OF parsing code.
68 * We build a unit address from the linux device to be used for
69 * resolution. Note that we use the linux bus number which may
70 * not match your firmware bus numbering.
71 * Fortunately, in most cases, interrupt-map-mask doesn't include
72 * the bus number as part of the matching.
73 * You should still be careful about that though if you intend
74 * to rely on this function (you ship a firmware that doesn't
75 * create device nodes for all PCI devices).
76 */
77 if (ppnode)
78 break;
79
80 /* We can only get here if we hit a P2P bridge with no node,
81 * let's do standard swizzling and try again
82 */
83 lspec = pci_swizzle_interrupt_pin(pdev, lspec);
84 pdev = ppdev;
85 }
86
87 laddr[0] = (pdev->bus->number << 16)
88 | (pdev->devfn << 8);
89 laddr[1] = laddr[2] = 0;
90 return of_irq_map_raw(ppnode, &lspec, 1, laddr, out_irq);
91}
92EXPORT_SYMBOL_GPL(of_irq_map_pci);
93#endif /* CONFIG_PCI */
94 10
95void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop, 11void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
96 unsigned long *busno, unsigned long *phys, unsigned long *size) 12 unsigned long *busno, unsigned long *phys, unsigned long *size)