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