Hello Matt, On Tue, 14 Apr 2015 14:07:18 -0400, Matt Porter <mpor...@konsulko.com> wrote: > On ARM v7M, the processor will return to ARM mode when executing > a blx instruction with bit 0 of the address == 0. Always set it > to 1 to stay in thumb mode.
This should be done for all targets which build with Thumb instruction set, not only ARMv7M, should it not? > Signed-off-by: Matt Porter <mpor...@konsulko.com> > --- > common/cmd_boot.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/common/cmd_boot.c b/common/cmd_boot.c > index 8f2e070..20ce652 100644 > --- a/common/cmd_boot.c > +++ b/common/cmd_boot.c > @@ -38,6 +38,10 @@ static int do_go(cmd_tbl_t *cmdtp, int flag, int argc, > char * const argv[]) > * pass address parameter as argv[0] (aka command name), > * and all remaining args > */ > +#ifdef CONFIG_CPU_V7M > + /* For ARM V7M, set bit zero to stay in Thumb mode */ > + addr++; > +#endif > rc = do_go_exec ((void *)addr, argc - 1, argv + 1); > if (rc != 0) rcode = 1; > > -- > 2.1.0 > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot Amicalement, -- Albert. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
