Dear Marek,
I did the changes suggested by you and tested the build. The issue
didn't come up. Then I reverted the code to the original (attributes
retained and ehci directly de-referencing the pointers. The issue didn't
come here too.
Today, I used armv7-linux-gcc (GCC) v4.6.2
So I suspect there has been some fix done in the GCC.
Now, even with the packed attributes, the word fields are accessed
word-by-word in contrast to the earlier observed behavior
(byte-by-byte). I could see ldr and str in the disassembly.
May be, we can discard this patch and keep drivers/usb/host/ehci.h intact.
Can you check with different toolchain please?
Do you mean different toolchains for ARM? I can surely check if you can
help me. I have used ST's internal distribution till date and I guess I
need to download and install other ARM toolchains in order to verify
this issue.
Or, we can work this way that my source code is compiled by someone
already installed/using other tool chains. I can test it on my board and
report the results?
Thanks
Amit Virdi
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