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>
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fd3c3ed5d1
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9096bd7a66
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@ -127,7 +127,12 @@ static struct resource standard_io_resources[] = { {
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}, {
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.name = "keyboard",
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.start = 0x0060,
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.end = 0x006f,
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.end = 0x0060,
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.flags = IORESOURCE_BUSY | IORESOURCE_IO
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}, {
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.name = "keyboard",
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.start = 0x0064,
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.end = 0x0064,
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.flags = IORESOURCE_BUSY | IORESOURCE_IO
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}, {
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.name = "dma page reg",
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@ -129,7 +129,9 @@ static struct resource standard_io_resources[] = {
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.flags = IORESOURCE_BUSY | IORESOURCE_IO },
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{ .name = "timer1", .start = 0x50, .end = 0x53,
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.flags = IORESOURCE_BUSY | IORESOURCE_IO },
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{ .name = "keyboard", .start = 0x60, .end = 0x6f,
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{ .name = "keyboard", .start = 0x60, .end = 0x60,
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.flags = IORESOURCE_BUSY | IORESOURCE_IO },
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{ .name = "keyboard", .start = 0x64, .end = 0x64,
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.flags = IORESOURCE_BUSY | IORESOURCE_IO },
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{ .name = "dma page reg", .start = 0x80, .end = 0x8f,
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.flags = IORESOURCE_BUSY | IORESOURCE_IO },
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