| Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (c) 2013 Google, Inc |
| Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 4 | */ |
| 5 | |
| Sughosh Ganu | 6012c1e | 2024-07-30 16:41:32 +0530 | [diff] [blame] | 6 | #include <vsprintf.h> |
| Simon Glass | 0b591e0 | 2019-12-06 21:41:38 -0700 | [diff] [blame] | 7 | #include <dm/device.h> |
| Bin Meng | dddc3a8 | 2018-10-10 22:06:57 -0700 | [diff] [blame] | 8 | #include <dm/ofnode.h> |
| Simon Glass | 0b591e0 | 2019-12-06 21:41:38 -0700 | [diff] [blame] | 9 | #include <dm/read.h> |
| Masahiro Yamada | 3247fdb | 2017-06-22 16:50:01 +0900 | [diff] [blame] | 10 | #include <dm/util.h> |
| Masahiro Yamada | 75f82d0 | 2018-03-05 01:20:11 +0900 | [diff] [blame] | 11 | #include <linux/libfdt.h> |
| Sughosh Ganu | 6012c1e | 2024-07-30 16:41:32 +0530 | [diff] [blame] | 12 | #include <linux/list.h> |
| Heiko Stübner | 9a2cdca | 2017-02-18 19:46:21 +0100 | [diff] [blame] | 13 | |
| Simon Glass | 9288265 | 2021-08-07 07:24:04 -0600 | [diff] [blame] | 14 | #if CONFIG_IS_ENABLED(OF_REAL) |
| Simon Glass | 0b591e0 | 2019-12-06 21:41:38 -0700 | [diff] [blame] | 15 | int pci_get_devfn(struct udevice *dev) |
| 16 | { |
| 17 | struct fdt_pci_addr addr; |
| 18 | int ret; |
| 19 | |
| 20 | /* Extract the devfn from fdt_pci_addr */ |
| 21 | ret = ofnode_read_pci_addr(dev_ofnode(dev), FDT_PCI_SPACE_CONFIG, |
| Simon Glass | 4289c26 | 2023-09-26 08:14:58 -0600 | [diff] [blame] | 22 | "reg", &addr, NULL); |
| Simon Glass | 0b591e0 | 2019-12-06 21:41:38 -0700 | [diff] [blame] | 23 | if (ret) { |
| 24 | if (ret != -ENOENT) |
| 25 | return -EINVAL; |
| 26 | } |
| 27 | |
| 28 | return addr.phys_hi & 0xff00; |
| 29 | } |
| 30 | #endif |