Hi Bin Bin Meng <bmeng...@gmail.com> 於 2019年10月29日 週二 下午10:42寫道： > > Hi Rick, > > On Fri, Oct 25, 2019 at 2:17 PM Andes <ub...@andestech.com> wrote: > > > > From: Rick Chen <r...@andestech.com> > > > > To get memory size from device tree instead of > > get_ram_size(). This can avoid memory access fault > > Could you please explain a little more about why get_ram_size() causes > PMP access fault?
OpenSBI will configure pmpcfg and pmpaddr for memory protection in specific range. When get_ram_size() try to store or load memory address, it will appear access fault exception. Thanks Rick > > > in U-Boot proper after PMP configurations in OpenSbi. > > > > Signed-off-by: Rick Chen <r...@andestech.com> > > Cc: KC Lin <kc...@andestech.com> > > Cc: Alan Kao <alan...@andestech.com> > > --- > > board/AndesTech/ax25-ae350/ax25-ae350.c | 21 ++------------------- > > 1 file changed, 2 insertions(+), 19 deletions(-) > > > > Regards, > Bin _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
