1a2f5d091SSimon Glass /* 2a2f5d091SSimon Glass * From coreboot file of the same name 3a2f5d091SSimon Glass * 4a2f5d091SSimon Glass * Copyright (C) 2010 coresystems GmbH 5a2f5d091SSimon Glass * 6a2f5d091SSimon Glass * SPDX-License-Identifier: GPL-2.0 7a2f5d091SSimon Glass */ 8a2f5d091SSimon Glass 9a2f5d091SSimon Glass #ifndef __ASM_IOAPIC_H 10a2f5d091SSimon Glass #define __ASM_IOAPIC_H 11a2f5d091SSimon Glass 12a2f5d091SSimon Glass #define IO_APIC_ADDR 0xfec00000 13ba9091f5SBin Meng 14ba9091f5SBin Meng /* Direct addressed register */ 15ba9091f5SBin Meng #define IO_APIC_INDEX (IO_APIC_ADDR + 0x00) 16a2f5d091SSimon Glass #define IO_APIC_DATA (IO_APIC_ADDR + 0x10) 17a2f5d091SSimon Glass 18*3d232878SBin Meng /* Indirect addressed register offset */ 19*3d232878SBin Meng #define IO_APIC_ID 0x00 20*3d232878SBin Meng #define IO_APIC_VER 0x01 21*3d232878SBin Meng 22*3d232878SBin Meng /** 23*3d232878SBin Meng * io_apic_read() - Read I/O APIC register 24*3d232878SBin Meng * 25*3d232878SBin Meng * This routine reads I/O APIC indirect addressed register. 26*3d232878SBin Meng * 27*3d232878SBin Meng * @reg: address of indirect addressed register 28*3d232878SBin Meng * @return: register value to read 29*3d232878SBin Meng */ 30*3d232878SBin Meng u32 io_apic_read(u32 reg); 31*3d232878SBin Meng 32*3d232878SBin Meng /** 33*3d232878SBin Meng * io_apic_write() - Write I/O APIC register 34*3d232878SBin Meng * 35*3d232878SBin Meng * This routine writes I/O APIC indirect addressed register. 36*3d232878SBin Meng * 37*3d232878SBin Meng * @reg: address of indirect addressed register 38*3d232878SBin Meng * @val: register value to write 39*3d232878SBin Meng */ 40*3d232878SBin Meng void io_apic_write(u32 reg, u32 val); 41*3d232878SBin Meng 42a2f5d091SSimon Glass #endif 43