ieee1394: sbp2: more help in Kconfig

[firefly-linux-kernel-4.4.55.git] / drivers / ieee1394 / Kconfig

diff --git a/drivers/ieee1394/Kconfig b/drivers/ieee1394/Kconfig
index 06783c1e3dc54bf69196a85a2fc344eef9749fa4..2769e505f051530cb676cf60df41b59a34161ceb 100644 (file)
--- a/drivers/ieee1394/Kconfig
+++ b/drivers/ieee1394/Kconfig
@@ -120,16 +120,23 @@ config IEEE1394_VIDEO1394
          this option only if you have an IEEE 1394 video device connected to
          an OHCI-1394 card.
 
+comment "SBP-2 support (for storage devices) requires SCSI"
+       depends on IEEE1394 && SCSI=n
+
 config IEEE1394_SBP2
        tristate "SBP-2 support (Harddisks etc.)"
        depends on IEEE1394 && SCSI && (PCI || BROKEN)
        help
-         This option enables you to use SBP-2 devices connected to your IEEE
-         1394 bus.  SBP-2 devices include harddrives and DVD devices.
+         This option enables you to use SBP-2 devices connected to an IEEE
+         1394 bus.  SBP-2 devices include storage devices like harddisks and
+         DVD drives, also some other FireWire devices like scanners.
+
+         You should also enable support for disks, CD-ROMs, etc. in the SCSI
+         configuration section.
 
 config IEEE1394_SBP2_PHYS_DMA
        bool "Enable replacement for physical DMA in SBP2"
-       depends on IEEE1394 && IEEE1394_SBP2 && EXPERIMENTAL
+       depends on IEEE1394 && IEEE1394_SBP2 && EXPERIMENTAL && (X86_32 || PPC_32)
        help
          This builds sbp2 for use with non-OHCI host adapters which do not
          support physical DMA or for when ohci1394 is run with phys_dma=0.