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USB: Align buffers at cacheline

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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>
This commit is contained in:
Puneet Saxena 2012-04-03 14:56:06 +05:30 • committed by Marek Vasut
parent 66cf64107b
commit f57661394a
6 changed files with 61 additions and 58 deletions
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4
include/usb.h
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@ -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 */