Messages in this thread Patch in this message |  | | From | Bartlomiej Zolnierkiewicz <> | Date | Thu, 13 Mar 2008 23:44:26 +0100 | Subject | [PATCH 6/12] amd74xx: add "pci_clock=" parameter |
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Add "pci_clock=" parameter for specifying PCI bus clock frequency (in MHz).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> --- drivers/ide/pci/amd74xx.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
Index: b/drivers/ide/pci/amd74xx.c =================================================================== --- a/drivers/ide/pci/amd74xx.c +++ b/drivers/ide/pci/amd74xx.c @@ -32,6 +32,8 @@ enum { AMD_UDMA_TIMING = 0x50, }; +static int pci_clock; + static unsigned int amd_80w; static unsigned int amd_clock; @@ -179,7 +181,7 @@ static unsigned int __devinit init_chips * Determine the system bus clock. */ - amd_clock = system_bus_clock() * 1000; + amd_clock = (pci_clock ? pci_clock : system_bus_clock()) * 1000; switch (amd_clock) { case 33000: amd_clock = 33333; break; @@ -353,6 +355,9 @@ static int __init amd74xx_ide_init(void) module_init(amd74xx_ide_init); +module_param(pci_clock, int, 0); +MODULE_PARM_DESC(pci_clock, "PCI bus clock frequency (in MHz)"); + MODULE_AUTHOR("Vojtech Pavlik"); MODULE_DESCRIPTION("AMD PCI IDE driver"); MODULE_LICENSE("GPL");
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