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| author | Helge Wagner <Helge.Wagner@gefanuc.com> | 2008-04-29 14:20:40 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-05-10 19:31:45 +0200 |
| commit | 9096bd7a66efbe406910365c5206a32eed3875af (patch) | |
| tree | c6362db951f1f5426f7d0aabd8ae825f1a1dcc31 /arch | |
| parent | fd3c3ed5d1e3ceb37635cbe6d220ab94aae0781d (diff) | |
| download | linux-3.10-9096bd7a66efbe406910365c5206a32eed3875af.tar.gz linux-3.10-9096bd7a66efbe406910365c5206a32eed3875af.tar.bz2 linux-3.10-9096bd7a66efbe406910365c5206a32eed3875af.zip | |
x86: restrict keyboard io ports reservation to make ipmi driver work
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.
[ tglx: added 64bit fixup ]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/setup_32.c | 7 | ||||
| -rw-r--r-- | arch/x86/kernel/setup_64.c | 4 |
2 files changed, 9 insertions, 2 deletions
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c index 2283422af79..2c5f8b213e8 100644 --- a/arch/x86/kernel/setup_32.c +++ b/arch/x86/kernel/setup_32.c @@ -127,7 +127,12 @@ static struct resource standard_io_resources[] = { { }, { .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", diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c index 80d80fab700..f2fc8feb727 100644 --- a/arch/x86/kernel/setup_64.c +++ b/arch/x86/kernel/setup_64.c @@ -129,7 +129,9 @@ static struct resource standard_io_resources[] = { .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "timer1", .start = 0x50, .end = 0x53, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, - { .name = "keyboard", .start = 0x60, .end = 0x6f, + { .name = "keyboard", .start = 0x60, .end = 0x60, + .flags = IORESOURCE_BUSY | IORESOURCE_IO }, + { .name = "keyboard", .start = 0x64, .end = 0x64, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, { .name = "dma page reg", .start = 0x80, .end = 0x8f, .flags = IORESOURCE_BUSY | IORESOURCE_IO }, |