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authorHelge Wagner <Helge.Wagner@gefanuc.com>2008-04-29 08:20:40 -0400
committerThomas Gleixner <tglx@linutronix.de>2008-05-10 13:31:45 -0400
commit9096bd7a66efbe406910365c5206a32eed3875af (patch)
treec6362db951f1f5426f7d0aabd8ae825f1a1dcc31 /arch
parentfd3c3ed5d1e3ceb37635cbe6d220ab94aae0781d (diff)
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.c7
-rw-r--r--arch/x86/kernel/setup_64.c4
2 files changed, 9 insertions, 2 deletions
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 2283422af794..2c5f8b213e86 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[] = { {
127}, { 127}, {
128 .name = "keyboard", 128 .name = "keyboard",
129 .start = 0x0060, 129 .start = 0x0060,
130 .end = 0x006f, 130 .end = 0x0060,
131 .flags = IORESOURCE_BUSY | IORESOURCE_IO
132}, {
133 .name = "keyboard",
134 .start = 0x0064,
135 .end = 0x0064,
131 .flags = IORESOURCE_BUSY | IORESOURCE_IO 136 .flags = IORESOURCE_BUSY | IORESOURCE_IO
132}, { 137}, {
133 .name = "dma page reg", 138 .name = "dma page reg",
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 80d80fab7006..f2fc8feb727d 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[] = {
129 .flags = IORESOURCE_BUSY | IORESOURCE_IO }, 129 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
130 { .name = "timer1", .start = 0x50, .end = 0x53, 130 { .name = "timer1", .start = 0x50, .end = 0x53,
131 .flags = IORESOURCE_BUSY | IORESOURCE_IO }, 131 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
132 { .name = "keyboard", .start = 0x60, .end = 0x6f, 132 { .name = "keyboard", .start = 0x60, .end = 0x60,
133 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
134 { .name = "keyboard", .start = 0x64, .end = 0x64,
133 .flags = IORESOURCE_BUSY | IORESOURCE_IO }, 135 .flags = IORESOURCE_BUSY | IORESOURCE_IO },
134 { .name = "dma page reg", .start = 0x80, .end = 0x8f, 136 { .name = "dma page reg", .start = 0x80, .end = 0x8f,
135 .flags = IORESOURCE_BUSY | IORESOURCE_IO }, 137 .flags = IORESOURCE_BUSY | IORESOURCE_IO },