Re: [PATCH] x86: restrict keyboard io ports reservation to make ipmi driver work

[Yinghai Lu]

On Tue, Apr 29, 2008 at 2:46 PM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
> From: Helge Wagner <Helge.Wagner@xxxxxxxxxxx>
>
>  On some of our (single board computer) boards (x86) we are using an
>  IPMI controller that uses I/O ports 0x62 and 0x66 for a KCS (keyboard
>  controller style) IPMI system interface.
>
>  Trying to load the openipmi driver fails, because the ports
>  (0x62/0x66) are reserved for keyboard. keyboard reserves the full
>  range 0x60-0x6F while it doesn't need to.
>
>  Reserve only ports 0x60 and 0x64 for the legacy PS/2 i8042 keyboad
>  controller instead of 0x60-0x6F to allow the openipmi driver to work.
>
>  Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
>  ---
>   arch/x86/kernel/setup_32.c |    7 ++++++-
>   1 file changed, 6 insertions(+), 1 deletion(-)
>
>  Index: linux-2.6/arch/x86/kernel/setup_32.c
>  ===================================================================
>  --- linux-2.6.orig/arch/x86/kernel/setup_32.c
>  +++ linux-2.6/arch/x86/kernel/setup_32.c
>  @@ -127,7 +127,12 @@ static struct resource standard_io_resou
>   }, {
>         .name   = "keyboard",
>         .start  = 0x0060,
>  -       .end    = 0x006f,
>  +       .end    = 0x0060,
>  +       .flags  = IORESOURCE_BUSY | IORESOURCE_IO
>  +}, {
>  +       .name   = "keyboard",
>  +       .start  = 0x0064,
>  +       .end    = 0x0064,
>         .flags  = IORESOURCE_BUSY | IORESOURCE_IO
>   }, {
>         .name   = "dma page reg",
>  --

64 bit need to be fixed too...
        { .name = "keyboard", .start = 0x60, .end = 0x6f,
                .flags = IORESOURCE_BUSY | IORESOURCE_IO },

YH
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