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yaml
---
r: 256793
b: refs/heads/master
c: bf13a6f
h: refs/heads/master
i:
  256791: 3cbf82f
v: v3
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Benjamin Herrenschmidt committed Jun 7, 2011
1 parent 1b4c888 commit f712e1d
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Showing 4 changed files with 114 additions and 140 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 72bdee79f89ffc9ce425611cdaf88d28a96b8b66
refs/heads/master: bf13a6fa09b8db7f1fd59b5e2ed3674a89a6a25c
2 changes: 1 addition & 1 deletion trunk/arch/microblaze/pci/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -2,5 +2,5 @@
# Makefile
#

obj-$(CONFIG_PCI) += pci_32.o pci-common.o indirect_pci.o iomap.o
obj-$(CONFIG_PCI) += pci-common.o indirect_pci.o iomap.o
obj-$(CONFIG_PCI_XILINX) += xilinx_pci.o
112 changes: 112 additions & 0 deletions trunk/arch/microblaze/pci/pci-common.c
Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,11 @@ unsigned int pci_flags;

static struct dma_map_ops *pci_dma_ops = &dma_direct_ops;

unsigned long isa_io_base;
unsigned long pci_dram_offset;
static int pci_bus_count;


void set_pci_dma_ops(struct dma_map_ops *dma_ops)
{
pci_dma_ops = dma_ops;
Expand Down Expand Up @@ -1558,6 +1563,112 @@ void __devinit pcibios_setup_phb_resources(struct pci_controller *hose)
(unsigned long)hose->io_base_virt - _IO_BASE);
}

struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus)
{
struct pci_controller *hose = bus->sysdata;

return of_node_get(hose->dn);
}

static void __devinit pcibios_scan_phb(struct pci_controller *hose)
{
struct pci_bus *bus;
struct device_node *node = hose->dn;
unsigned long io_offset;
struct resource *res = &hose->io_resource;

pr_debug("PCI: Scanning PHB %s\n",
node ? node->full_name : "<NO NAME>");

/* Create an empty bus for the toplevel */
bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops, hose);
if (bus == NULL) {
printk(KERN_ERR "Failed to create bus for PCI domain %04x\n",
hose->global_number);
return;
}
bus->secondary = hose->first_busno;
hose->bus = bus;

/* Fixup IO space offset */
io_offset = (unsigned long)hose->io_base_virt - isa_io_base;
res->start = (res->start + io_offset) & 0xffffffffu;
res->end = (res->end + io_offset) & 0xffffffffu;

/* Wire up PHB bus resources */
pcibios_setup_phb_resources(hose);

/* Scan children */
hose->last_busno = bus->subordinate = pci_scan_child_bus(bus);
}

static int __init pcibios_init(void)
{
struct pci_controller *hose, *tmp;
int next_busno = 0;

printk(KERN_INFO "PCI: Probing PCI hardware\n");

/* Scan all of the recorded PCI controllers. */
list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
hose->last_busno = 0xff;
pcibios_scan_phb(hose);
printk(KERN_INFO "calling pci_bus_add_devices()\n");
pci_bus_add_devices(hose->bus);
if (next_busno <= hose->last_busno)
next_busno = hose->last_busno + 1;
}
pci_bus_count = next_busno;

/* Call common code to handle resource allocation */
pcibios_resource_survey();

return 0;
}

subsys_initcall(pcibios_init);

static struct pci_controller *pci_bus_to_hose(int bus)
{
struct pci_controller *hose, *tmp;

list_for_each_entry_safe(hose, tmp, &hose_list, list_node)
if (bus >= hose->first_busno && bus <= hose->last_busno)
return hose;
return NULL;
}

/* Provide information on locations of various I/O regions in physical
* memory. Do this on a per-card basis so that we choose the right
* root bridge.
* Note that the returned IO or memory base is a physical address
*/

long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn)
{
struct pci_controller *hose;
long result = -EOPNOTSUPP;

hose = pci_bus_to_hose(bus);
if (!hose)
return -ENODEV;

switch (which) {
case IOBASE_BRIDGE_NUMBER:
return (long)hose->first_busno;
case IOBASE_MEMORY:
return (long)hose->pci_mem_offset;
case IOBASE_IO:
return (long)hose->io_base_phys;
case IOBASE_ISA_IO:
return (long)isa_io_base;
case IOBASE_ISA_MEM:
return (long)isa_mem_base;
}

return result;
}

/*
* Null PCI config access functions, for the case when we can't
* find a hose.
Expand Down Expand Up @@ -1626,3 +1737,4 @@ int early_find_capability(struct pci_controller *hose, int bus, int devfn,
{
return pci_bus_find_capability(fake_pci_bus(hose, bus), devfn, cap);
}

138 changes: 0 additions & 138 deletions trunk/arch/microblaze/pci/pci_32.c

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