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 183d232878SBin Meng /* Indirect addressed register offset */ 193d232878SBin Meng #define IO_APIC_ID 0x00 203d232878SBin Meng #define IO_APIC_VER 0x01 213d232878SBin Meng 223d232878SBin Meng /** 233d232878SBin Meng * io_apic_read() - Read I/O APIC register 243d232878SBin Meng * 253d232878SBin Meng * This routine reads I/O APIC indirect addressed register. 263d232878SBin Meng * 273d232878SBin Meng * @reg: address of indirect addressed register 283d232878SBin Meng * @return: register value to read 293d232878SBin Meng */ 303d232878SBin Meng u32 io_apic_read(u32 reg); 313d232878SBin Meng 323d232878SBin Meng /** 333d232878SBin Meng * io_apic_write() - Write I/O APIC register 343d232878SBin Meng * 353d232878SBin Meng * This routine writes I/O APIC indirect addressed register. 363d232878SBin Meng * 373d232878SBin Meng * @reg: address of indirect addressed register 383d232878SBin Meng * @val: register value to write 393d232878SBin Meng */ 403d232878SBin Meng void io_apic_write(u32 reg, u32 val); 413d232878SBin Meng 42*1cb1611fSSimon Glass void io_apic_set_id(int ioapic_id); 43*1cb1611fSSimon Glass 44a2f5d091SSimon Glass #endif 45