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| author | Simon Glass <sjg@chromium.org> | 2014-11-14 18:18:27 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2014-11-25 06:33:59 -0700 |
| commit | a2f5d091ccdc6ffd8fa11c140bc5a93234ee4833 (patch) | |
| tree | d4b87a789a7576f99588f26f14fbb9c5f5013783 /arch/x86/include/asm | |
| parent | c6577f7219489725924c646a360dc2d50cc5402b (diff) | |
| download | u-boot-imx-a2f5d091ccdc6ffd8fa11c140bc5a93234ee4833.zip u-boot-imx-a2f5d091ccdc6ffd8fa11c140bc5a93234ee4833.tar.gz u-boot-imx-a2f5d091ccdc6ffd8fa11c140bc5a93234ee4833.tar.bz2 | |
x86: Add ioapic.h header
Add definitions for the I/O Advanced Peripheral Interrupt Controller.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/ioapic.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/x86/include/asm/ioapic.h b/arch/x86/include/asm/ioapic.h new file mode 100644 index 0000000..699160f --- /dev/null +++ b/arch/x86/include/asm/ioapic.h @@ -0,0 +1,38 @@ +/* + * From coreboot file of the same name + * + * Copyright (C) 2010 coresystems GmbH + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef __ASM_IOAPIC_H +#define __ASM_IOAPIC_H + +#define IO_APIC_ADDR 0xfec00000 +#define IO_APIC_INDEX IO_APIC_ADDR +#define IO_APIC_DATA (IO_APIC_ADDR + 0x10) +#define IO_APIC_INTERRUPTS 24 + +#define ALL (0xff << 24) +#define NONE 0 +#define DISABLED (1 << 16) +#define ENABLED (0 << 16) +#define TRIGGER_EDGE (0 << 15) +#define TRIGGER_LEVEL (1 << 15) +#define POLARITY_HIGH (0 << 13) +#define POLARITY_LOW (1 << 13) +#define PHYSICAL_DEST (0 << 11) +#define LOGICAL_DEST (1 << 11) +#define ExtINT (7 << 8) +#define NMI (4 << 8) +#define SMI (2 << 8) +#define INT (1 << 8) + +u32 io_apic_read(u32 ioapic_base, u32 reg); +void io_apic_write(u32 ioapic_base, u32 reg, u32 value); +void set_ioapic_id(u32 ioapic_base, u8 ioapic_id); +void setup_ioapic(u32 ioapic_base, u8 ioapic_id); +void clear_ioapic(u32 ioapic_base); + +#endif |