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* dm: x86: Drop the weak cpu_irq_init() functionSimon Glass2016-01-241-10/+0
| | | | | | | | There are no callers now. Platforms which need to set up interrupts their own way can implement an interrupt driver. Drop this function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* dm: x86: Add a common PIRQ init functionSimon Glass2016-01-241-0/+7
| | | | | | | | | Most x86 interrupt drivers will want to use the standard PIRQ routing and table setup. Put this code in a common function so it can be used by those drivers that want it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* dm: x86: Set up interrupt routing from interrupt_init()Simon Glass2016-01-241-10/+0
| | | | | | | | | | | | | | | At present interrupt routing is set up from arch_misc_init(). We can do it a little later instead, in interrupt_init(). This removes the manual pirq_init() call. Where the platform does not have an interrupt router defined in its device tree, no error is generated. Some platforms do not have this. Drop pirq_init() since it is no-longer used. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Allow pirq_init() to return an errorSimon Glass2015-08-141-1/+3
| | | | | | | | This function can fail. In this case we should return the error rather than swallowing it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Refactor PIRQ routing supportBin Meng2015-06-041-0/+76
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>
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