1 .\" $NetBSD: stpcide.4,v 1.7 2004/08/21 21:46:54 nisimura Exp $
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30 .Nd STMicroelectronics STPC IDE disk controllers driver
32 .Cd "stpcide* at pci? dev ? function ? flags 0x0000"
36 driver supports the STMicroelectronics STPC x86 SoC internal IDE controllers,
37 and provides the interface with the hardware for the
40 The driver features DMA mode 2 and PIO mode 4 transfer speeds.
42 The 0x0002 flag forces the
44 driver to disable DMA on chipsets for which DMA would normally be
46 This can be used as a debugging aid, or to work around
47 problems where the IDE controller is wired up to the system incorrectly.
57 The timings used for the DMA and PIO modes are for STPC Atlas and
58 its siblings with their PCI clock configured at 33 MHz.
59 Other speeds including the STPC Vega Ultra-IDE controller will need