Commit graph

4 commits

Author SHA1 Message Date
Bin Meng
51050ff0a2 x86: irq: Support discrete PIRQ routing registers via device tree
Currently both pirq_reg_to_linkno() and pirq_linkno_to_reg() assume
consecutive PIRQ routing control registers. But this is not always
the case on some platforms. Introduce a new device tree property
intel,pirq-regmap to describe how the PIRQ routing register offset
is mapped to the link number and adjust the irq router driver to
utilize the mapping.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-13 09:50:57 +08:00
Bin Meng
d4e61f505b x86: irq: Enable SCI on IRQ9
By default SCI is disabled after power on. ACTL is the register to
enable SCI and route it to PIC/APIC. To support both ACPI in PIC
mode and APIC mode, configure SCI to use IRQ9.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Stefan Roese <sr@denx.de>
2016-05-23 15:18:00 +08:00
Simon Glass
7fd078cb8c x86: dts: Fix typo in intel,irq-router.txt
Fix a small typo in this binding file.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-08-05 08:42:42 -06:00
Bin Meng
5910955f3c x86: Document irq router device tree bindings
Describe all required properties needed by the irq router device tree.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-06-04 02:39:39 -06:00