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authorPuneet Saxena <puneets@nvidia.com>2012-04-03 14:56:06 +0530
committerMarek Vasut <marex@denx.de>2012-05-20 08:32:32 +0200
commitf57661394a8b00029e37a5567a869e92bd13f3b8 (patch)
treed00363f82c23324c8e69353c7bfb38ae183c803c /include/usb.h
parent66cf64107b891d1cc8112ff76b5687195af2f5b0 (diff)
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USB: Align buffers at cacheline
This avoids cache-alignment warnings shown in console when a usb command is entered. Whenever X bytes of unaligned buffer is invalidated, arm core invalidates X + Y bytes as per the cache line size and throws these warnings. Signed-off-by: Puneet Saxena <puneets@nvidia.com> Signed-off-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'include/usb.h')
-rw-r--r--include/usb.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/usb.h b/include/usb.h
index 48e4bcd..6da91e7 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -109,7 +109,9 @@ struct usb_device {
int epmaxpacketout[16]; /* OUTput endpoint specific maximums */
int configno; /* selected config number */
- struct usb_device_descriptor descriptor; /* Device Descriptor */
+ /* Device Descriptor */
+ struct usb_device_descriptor descriptor
+ __attribute__((aligned(ARCH_DMA_MINALIGN)));
struct usb_config config; /* config descriptor */
int have_langid; /* whether string_langid is valid yet */