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| author | Bin Meng <bmeng.cn@gmail.com> | 2015-05-25 22:35:04 +0800 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-06-04 02:39:39 -0600 |
| commit | 9c7dea602edd9027848d312e9b3b69f06c15f163 (patch) | |
| tree | 4893732c170a3a889b819482f7003491ecbac11c /include/dt-bindings/interrupt-router | |
| parent | 2aa3a7fb1c24afd4c0e12360acccf3234d8fe019 (diff) | |
| download | u-boot-9c7dea602edd9027848d312e9b3b69f06c15f163.tar.gz u-boot-9c7dea602edd9027848d312e9b3b69f06c15f163.tar.xz u-boot-9c7dea602edd9027848d312e9b3b69f06c15f163.zip | |
x86: Refactor PIRQ routing support
PIRQ routing is pretty much common in Intel chipset. It has several
PIRQ links (normally 8) and corresponding registers (either in PCI
configuration space or memory-mapped IBASE) to configure the legacy
8259 IRQ vector mapping. Refactor current Queensbay PIRQ routing
support using device tree and move it to a common place, so that we
can easily add PIRQ routing support on a new platform.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/dt-bindings/interrupt-router')
| -rw-r--r-- | include/dt-bindings/interrupt-router/intel-irq.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/dt-bindings/interrupt-router/intel-irq.h b/include/dt-bindings/interrupt-router/intel-irq.h new file mode 100644 index 0000000000..5092f33dfa --- /dev/null +++ b/include/dt-bindings/interrupt-router/intel-irq.h @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _DT_BINDINGS_INTEL_IRQ_H_ +#define _DT_BINDINGS_INTEL_IRQ_H_ + +/* PCI interrupt pin */ +#define INTA 1 +#define INTB 2 +#define INTC 3 +#define INTD 4 + +/* PIRQs */ +#define PIRQA 0 +#define PIRQB 1 +#define PIRQC 2 +#define PIRQD 3 +#define PIRQE 4 +#define PIRQF 5 +#define PIRQG 6 +#define PIRQH 7 + +/* PCI bdf encoding */ +#ifndef PCI_BDF +#define PCI_BDF(b, d, f) ((b) << 16 | (d) << 11 | (f) << 8) +#endif + +#endif /* _DT_BINDINGS_INTEL_IRQ_H_ */ |