Contributors: 20
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Benjamin Herrenschmidt |
173 |
59.66% |
8 |
22.86% |
| Grant C. Likely |
18 |
6.21% |
5 |
14.29% |
| Stephen Rothwell |
17 |
5.86% |
3 |
8.57% |
| Paul Mackerras |
16 |
5.52% |
2 |
5.71% |
| John Rose |
13 |
4.48% |
1 |
2.86% |
| Ishizaki Kou |
12 |
4.14% |
1 |
2.86% |
| Arnd Bergmann |
10 |
3.45% |
1 |
2.86% |
| Anton Blanchard |
7 |
2.41% |
2 |
5.71% |
| Gavin Shan |
5 |
1.72% |
1 |
2.86% |
| Jeff Mahoney |
3 |
1.03% |
1 |
2.86% |
| Linas Vepstas |
3 |
1.03% |
1 |
2.86% |
| Dominik Brodowski |
2 |
0.69% |
1 |
2.86% |
| Oliver O'Halloran |
2 |
0.69% |
1 |
2.86% |
| Thomas Gleixner |
2 |
0.69% |
1 |
2.86% |
| Geliang Tang |
2 |
0.69% |
1 |
2.86% |
| Paul Gortmaker |
1 |
0.34% |
1 |
2.86% |
| Rob Herring |
1 |
0.34% |
1 |
2.86% |
| Uwe Kleine-König |
1 |
0.34% |
1 |
2.86% |
| Adam Buchbinder |
1 |
0.34% |
1 |
2.86% |
| Arun Sharma |
1 |
0.34% |
1 |
2.86% |
| Total |
290 |
|
35 |
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
* <benh@kernel.crashing.org>
* and Arnd Bergmann, IBM Corp.
*/
#undef DEBUG
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/mod_devicetable.h>
#include <linux/pci.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <linux/atomic.h>
#include <asm/errno.h>
#include <asm/topology.h>
#include <asm/pci-bridge.h>
#include <asm/ppc-pci.h>
#include <asm/eeh.h>
#ifdef CONFIG_PPC_OF_PLATFORM_PCI
/* The probing of PCI controllers from of_platform is currently
* 64 bits only, mostly due to gratuitous differences between
* the 32 and 64 bits PCI code on PowerPC and the 32 bits one
* lacking some bits needed here.
*/
static int of_pci_phb_probe(struct platform_device *dev)
{
struct pci_controller *phb;
/* Check if we can do that ... */
if (ppc_md.pci_setup_phb == NULL)
return -ENODEV;
pr_info("Setting up PCI bus %pOF\n", dev->dev.of_node);
/* Alloc and setup PHB data structure */
phb = pcibios_alloc_controller(dev->dev.of_node);
if (!phb)
return -ENODEV;
/* Setup parent in sysfs */
phb->parent = &dev->dev;
/* Setup the PHB using arch provided callback */
if (ppc_md.pci_setup_phb(phb)) {
pcibios_free_controller(phb);
return -ENODEV;
}
/* Process "ranges" property */
pci_process_bridge_OF_ranges(phb, dev->dev.of_node, 0);
/* Init pci_dn data structures */
pci_devs_phb_init_dynamic(phb);
/* Create EEH PE for the PHB */
eeh_phb_pe_create(phb);
/* Scan the bus */
pcibios_scan_phb(phb);
if (phb->bus == NULL)
return -ENXIO;
/* Claim resources. This might need some rework as well depending
* whether we are doing probe-only or not, like assigning unassigned
* resources etc...
*/
pcibios_claim_one_bus(phb->bus);
/* Add probed PCI devices to the device model */
pci_bus_add_devices(phb->bus);
return 0;
}
static const struct of_device_id of_pci_phb_ids[] = {
{ .type = "pci", },
{ .type = "pcix", },
{ .type = "pcie", },
{ .type = "pciex", },
{ .type = "ht", },
{}
};
static struct platform_driver of_pci_phb_driver = {
.probe = of_pci_phb_probe,
.driver = {
.name = "of-pci",
.of_match_table = of_pci_phb_ids,
},
};
builtin_platform_driver(of_pci_phb_driver);
#endif /* CONFIG_PPC_OF_PLATFORM_PCI */