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authorStefan Roese <ml@stefan-roese.de>2007-05-01 20:29:37 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2007-07-13 03:29:45 +0400
commit6dbd682b7c6d58916096616cdf94852641bc09d9 (patch)
tree74bc2fa9038a426ac5f81969ad85cae5e4262501 /drivers/usb/host/Kconfig
parent196705c9bbc03540429b0f7cf9ee35c2f928a534 (diff)
downloadlinux-6dbd682b7c6d58916096616cdf94852641bc09d9.tar.xz
USB: EHCI support for big-endian descriptors
This patch implements supports for EHCI controllers whose in-memory data structures are represented in big-endian format. This is needed (unfortunately) for the AMCC PPC440EPx SoC EHCI controller; the EHCI spec doesn't specify little-endian format, although that's what most other implementations use. The guts of the patch are to introduce the hc32 type and change all references from le32 to hc32. All access routines are converted from cpu_to_le32(...) to cpu_to_hc32(ehci, ...) and similar for the other "direction". (This is the same approach used with OHCI.) David fixed: Whitespace fixes; refresh against ehci cpufreq patch; move glue for that PPC driver to the patch adding it; fix free symbol capture bugs in modified "constant" macros; and make "hc32" etc be "le32" unless we really need the BE options, so "sparse" can do some real good. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/Kconfig')
-rw-r--r--drivers/usb/host/Kconfig5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 62711870f8ee..a8faff646ac7 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -72,6 +72,11 @@ config USB_EHCI_BIG_ENDIAN_MMIO
depends on USB_EHCI_HCD
default n
+config USB_EHCI_BIG_ENDIAN_DESC
+ bool
+ depends on USB_EHCI_HCD
+ default n
+
config USB_ISP116X_HCD
tristate "ISP116X HCD support"
depends on USB