[U-Boot] [PATCH] arm: make arch memset/memcpy to work with Thumb2 builds

[Bill Pringlemeir <bpringlemeir@nbsps.com>]

> On 2014-11-20 20:14, Jeroen Hofstee wrote:

>> Ok thanks for digging that up, that doesn't sound like a problem
>> then. Stefan, can you check if you can actually fix the warnings
>> instead of suppressing them?

On 21 Nov 2014, stefan at agner.ch wrote:

> Ok, I could apply the changes from your patch and it fixed the
> warnings in memset.S. However, when I build the file in ARM mode then
> (without CONFIG_SYS_THUMB_BUILD set). I get this:

> arch/arm/lib/memset.S: Assembler messages: arch/arm/lib/memset.S:92:
> Error: bad instruction `stmiage ip!,{r1,r3-r8,lr}'

I think you need '.syntax unified' if you want those in ARM mode.  I
guess you found that out too?  I see,

+	.syntax unified
+#ifdef CONFIG_SYS_THUMB_BUILD
+	.thumb
+	.thumb_func
+#endif

in '[PATCH v2] arm: build arch memset/memcpy in Thumb2 mode'; so this
solved it?

I think it is a very nice feature to have Thumb2 on Vybrid.  Many boot
devices may have limited bandwidth compared to the running system.
Thanks for your work.

Regards,
Bill Pringlemeir