Using BX has the effect to set the T bit, so it can return to a thumb
function
With this change, rockbox runs fine on Clipv2 built with -mthumb (for
most files which don't use inline 32 bits ARM assembly)
Some other places use code which change the T bit on armv5 but not on
armv4 so armv4 won't run
See FS#6734
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26386 a1c6a512-1295-4272-9138-f99709370657
It is only used by gigabeats, and is defined in mmu-armv6.S already
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25630 a1c6a512-1295-4272-9138-f99709370657
clean_dcache and invalidate_dcache were incorrect and too tied to the
arm920t/arm922t 64-way set associative caches
Make those functions smaller on as3525, as this CPU has a smaller cache
than the gigabeat F/X
Flyspray: FS#11106
Authors: Jack Halpin and myself
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25628 a1c6a512-1295-4272-9138-f99709370657
