u-boot/arch/x86/include/asm/ioapic.h
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

43 lines
936 B
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* From coreboot file of the same name
*
* Copyright (C) 2010 coresystems GmbH
*/
#ifndef __ASM_IOAPIC_H
#define __ASM_IOAPIC_H
#define IO_APIC_ADDR 0xfec00000
/* Direct addressed register */
#define IO_APIC_INDEX (IO_APIC_ADDR + 0x00)
#define IO_APIC_DATA (IO_APIC_ADDR + 0x10)
/* Indirect addressed register offset */
#define IO_APIC_ID 0x00
#define IO_APIC_VER 0x01
/**
* io_apic_read() - Read I/O APIC register
*
* This routine reads I/O APIC indirect addressed register.
*
* @reg: address of indirect addressed register
* @return: register value to read
*/
u32 io_apic_read(u32 reg);
/**
* io_apic_write() - Write I/O APIC register
*
* This routine writes I/O APIC indirect addressed register.
*
* @reg: address of indirect addressed register
* @val: register value to write
*/
void io_apic_write(u32 reg, u32 val);
void io_apic_set_id(int ioapic_id);
#endif