1 /* 2 * (C) Copyright 2002 3 * Daniel Engström, Omicron Ceti AB, daniel@omicron.se 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #ifndef _PCI_I386_H_ 9 #define _PCI_I386_H_ 10 11 #include <pci.h> 12 13 /* bus mapping constants (used for PCI core initialization) */ 14 #define PCI_REG_ADDR 0xcf8 15 #define PCI_REG_DATA 0xcfc 16 17 #define PCI_CFG_EN 0x80000000 18 19 #ifndef __ASSEMBLY__ 20 21 int pci_x86_read_config(struct udevice *bus, pci_dev_t bdf, uint offset, 22 ulong *valuep, enum pci_size_t size); 23 24 int pci_x86_write_config(struct udevice *bus, pci_dev_t bdf, uint offset, 25 ulong value, enum pci_size_t size); 26 27 /** 28 * Assign IRQ number to a PCI device 29 * 30 * This function assigns IRQ for a PCI device. If the device does not exist 31 * or does not require interrupts then this function has no effect. 32 * 33 * @bus: PCI bus number 34 * @device: PCI device number 35 * @irq: An array of IRQ numbers that are assigned to INTA through 36 * INTD of this PCI device. 37 */ 38 void pci_assign_irqs(int bus, int device, u8 irq[4]); 39 40 #endif /* __ASSEMBLY__ */ 41 42 #endif /* _PCI_I386_H_ */ 43