[U-Boot] [RESPIN PATCH v2 09/15] x86: Add I/O APIC register access routines

Simon Glass sjg at chromium.org
Wed Jun 24 03:45:22 CEST 2015


On 22 June 2015 at 22:18, Bin Meng <bmeng.cn at gmail.com> wrote:
> I/O APIC registers are addressed indirectly. Add io_apic_read() and
> io_apic_write() routines to help register access. Two macros for I/O
> APIC ID and version register offset are also added.
>
> Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
>
> ---
>
> Changes in v2:
> - Do not use inline for register access
>
>  arch/x86/cpu/Makefile         |  2 +-
>  arch/x86/cpu/ioapic.c         | 21 +++++++++++++++++++++
>  arch/x86/include/asm/ioapic.h | 24 ++++++++++++++++++++++++
>  3 files changed, 46 insertions(+), 1 deletion(-)
>  create mode 100644 arch/x86/cpu/ioapic.c

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


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