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powerpc: Make PCI device node device tree accesses endian safe

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Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Anton Blanchard 2013-08-07 02:01:42 +10:00 committed by Benjamin Herrenschmidt
parent a795dc548a
commit c6296b9627
1 changed files with 11 additions and 9 deletions
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20
arch/powerpc/kernel/pci_dn.c
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@ -47,9 +47,8 @@ struct pci_dn *pci_get_pdn(struct pci_dev *pdev)
void *update_dn_pci_info(struct device_node *dn, void *data)
{
struct pci_controller *phb = data;
const int *type =
of_get_property(dn, "ibm,pci-config-space-type", NULL);
const u32 *regs;
const __be32 *type = of_get_property(dn, "ibm,pci-config-space-type", NULL);
const __be32 *regs;
struct pci_dn *pdn;
pdn = zalloc_maybe_bootmem(sizeof(*pdn), GFP_KERNEL);
@ -63,12 +62,14 @@ void *update_dn_pci_info(struct device_node *dn, void *data)
#endif
regs = of_get_property(dn, "reg", NULL);
if (regs) {
u32 addr = of_read_number(regs, 1);
/* First register entry is addr (00BBSS00) */
pdn->busno = (regs[0] >> 16) & 0xff;
pdn->devfn = (regs[0] >> 8) & 0xff;
pdn->busno = (addr >> 16) & 0xff;
pdn->devfn = (addr >> 8) & 0xff;
}
pdn->pci_ext_config_space = (type && *type == 1);
pdn->pci_ext_config_space = (type && of_read_number(type, 1) == 1);
return NULL;
}
@ -98,12 +99,13 @@ void *traverse_pci_devices(struct device_node *start, traverse_func pre,
/* We started with a phb, iterate all childs */
for (dn = start->child; dn; dn = nextdn) {
const u32 *classp;
u32 class;
const __be32 *classp;
u32 class = 0;
nextdn = NULL;
classp = of_get_property(dn, "class-code", NULL);
class = classp ? *classp : 0;
if (classp)
class = of_read_number(classp, 1);
if (pre && ((ret = pre(dn, data)) != NULL))
return ret;