Am Montag, 17. September 2018, 15:47:14 CEST schrieb Vicente Bergas: > The microSD card slot in the Sapphire board is not working because of > several issues: > 1.- The vmmc power supply is missing in the DTS. It is capable of 3.0V > and has a GPIO-based enable control. > 2.- The vqmmc power supply can provide up to 3.3V, but it is capped in > the DTS to just 3.0V because of the vmmc capability. This results in a > conflict from the mmc driver requesting an unsupportable voltage range > from 3.3V to 3.0V (min > max) as reported in dmesg. So, extend the > range up to 3.3V. The hw should be able to stand this 0.3V tolerance. > See mmc_regulator_set_vqmmc in drivers/mmc/core/core.c. > 3.- The card detect signal is non-working. There is a known conflict > with jtag, but the workaround in drivers/soc/rockchip/grf.c does not > work. Adding the broken-cd attribute to the DTS fixes the issue. > > Signed-off-by: Vicente Bergas <vicencb@xxxxxxxxx> applied for 4.20 Thanks Heiko _______________________________________________ Linux-rockchip mailing list Linux-rockchip@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-rockchip
