u-boot/drivers/pci/pci_compat.c
Simon Glass ff3e077bd2 dm: pci: Add a uclass for PCI
Add a uclass for PCI controllers and a generic one for PCI devices. Adjust
the 'pci' command and the existing PCI support to work with this new uclass.
Keep most of the compatibility code in a separate file so that it can be
removed one day.

TODO: Add more header file comments to the new parts of pci.h

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-16 19:27:43 -06:00

43 lines
1 KiB
C

/*
* Compatibility functions for pre-driver-model code
*
* Copyright (C) 2014 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#define DEBUG
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <malloc.h>
#include <pci.h>
#include <dm/device-internal.h>
#include <dm/lists.h>
#define PCI_HOSE_OP(rw, name, size, type) \
int pci_hose_##rw##_config_##name(struct pci_controller *hose, \
pci_dev_t dev, \
int offset, type value) \
{ \
return pci_##rw##_config##size(dev, offset, value); \
}
PCI_HOSE_OP(read, byte, 8, u8 *)
PCI_HOSE_OP(read, word, 16, u16 *)
PCI_HOSE_OP(read, dword, 32, u32 *)
PCI_HOSE_OP(write, byte, 8, u8)
PCI_HOSE_OP(write, word, 16, u16)
PCI_HOSE_OP(write, dword, 32, u32)
pci_dev_t pci_find_devices(struct pci_device_id *ids, int index)
{
struct pci_child_platdata *pplat;
struct udevice *bus, *dev;
if (pci_find_device_id(ids, index, &dev))
return -1;
bus = dev->parent;
pplat = dev_get_parent_platdata(dev);
return PCI_ADD_BUS(bus->seq, pplat->devfn);
}