Hi, On 29 August 2016 at 21:02, 陈豪 <jacobchen...@gmail.com> wrote: > Hi, > > You probably did not short the clock of eMMC. > If we don't press maskrom buttons(short the clock of eMMC), SPL will > detect eMMC and try to load image from eMMC. if the eMMC is blank, it > hangs. > So if we specifies board_boot_order and want to boot from SD in > FireFly, we have to short the clock of eMMC. > > The current code(spl_boot_device) will force to boot from SD rather > than boot from whatever media it started > with,.So we have to specifies board_boot_order if we want to boot from eMMC. > > Of course, It might be inconvenie to short the clock of eMMC in > FireFly. Do you have any better idea? >
(Please don't top post) I think that if it boots from SD then it should continue to boot from SD: SPL -> U-Boot -> Linux If it boots from eMMC then it should continue to boot from eMMC. How can we do this? Presumably there is a way to find out how we booted? - Simon > 2016-08-30 0:17 GMT+08:00 陈豪 <jacobchen...@gmail.com>: >> Hi, >> >> I just copied thos code from the other boards. >> >> On the other boards, I didn't meet this situation.It will load u-boot >> from sd if it didn't detect u-boot in eMMC. >> >> I'll check why it's different in firefly. >> >> 2016-08-28 0:06 GMT+08:00, Simon Glass <s...@chromium.org>: >>> Hi, >>> >>> On 12 August 2016 at 11:20, Simon Glass <s...@chromium.org> wrote: >>>> On 9 August 2016 at 19:56, Jacob Chen <jacob2.c...@rock-chips.com> wrote: >>>>> Add eMMC dt node and define fallback boot devices. >>>>> >>>>> Signed-off-by: Jacob Chen <jacob2.c...@rock-chips.com> >>>>> --- >>>>> >>>>> arch/arm/dts/rk3288-firefly.dts | 5 +++++ >>>>> board/firefly/firefly-rk3288/firefly-rk3288.c | 8 ++++++++ >>>>> 2 files changed, 13 insertions(+) >>>> >>>> Acked-by: Simon Glass <s...@chromium.org> >>> >>> Unfortunately I cannot apply this. It appears to actually force >>> booting from eMMC. So if the eMMC is blank, it hangs at 'Trying to >>> boot from MMC2'. >>> >>> I think it should continue to boot from whatever media it started >>> with. So if it booted SPL from SD then it should load U-Boot from SD. >>> >>> Regards, >>> Simon >>> _______________________________________________ >>> U-Boot mailing list >>> U-Boot@lists.denx.de >>> http://lists.denx.de/mailman/listinfo/u-boot >>> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
