[U-Boot] [PATCH 3/4] x86: Support platform PIRQ routing

[Simon Glass]

On 21 April 2015 at 19:56, Bin Meng <bmeng.cn at gmail.com> wrote:
> On x86 boards, platform chipset receives up to four different
> interrupt signals from PCI devices (INTA/B/C/D), which in turn
> will be routed to chipset internal PIRQ lines then routed to
> 8259 PIC finally if configuring the whole system to work under
> the so-called PIC mode (in contrast to symmetric IO mode which
> uses IOAPIC).
>
> We add two major APIs to aid this, one for routing PIRQ and the
> other one for generating a PIRQ routing table.
>
> Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
> ---
>
>  arch/x86/Kconfig                    |  31 ++++++++
>  arch/x86/include/asm/pirq_routing.h | 139 ++++++++++++++++++++++++++++++++++++
>  arch/x86/lib/Makefile               |   1 +
>  arch/x86/lib/pirq_routing.c         | 129 +++++++++++++++++++++++++++++++++
>  4 files changed, 300 insertions(+)
>  create mode 100644 arch/x86/include/asm/pirq_routing.h
>  create mode 100644 arch/x86/lib/pirq_routing.c

Acked-by: Simon Glass <sjg at chromium.org>