On 08/14/2016 08:30 PM, Heiko Stuebner wrote: > Am Sonntag, 14. August 2016, 19:27:23 CEST schrieb Randy Li: >> Because of a bug in hardware design, the sdcard at firefly >> rk3288 reload board can't switch the io voltage level to 1.8v. >> >> Signed-off-by: Randy Li <ayaka at soulik.info> >> --- >> arch/arm/boot/dts/rk3288-firefly-reload.dts | 7 +------ >> 1 file changed, 1 insertion(+), 6 deletions(-) >> >> diff --git a/arch/arm/boot/dts/rk3288-firefly-reload.dts >> b/arch/arm/boot/dts/rk3288-firefly-reload.dts index 43145d1..a2b1f14 100644 >> --- a/arch/arm/boot/dts/rk3288-firefly-reload.dts >> +++ b/arch/arm/boot/dts/rk3288-firefly-reload.dts >> @@ -202,18 +202,13 @@ >> bus-width = <4>; >> cap-mmc-highspeed; >> cap-sd-highspeed; >> - sd-uhs-sdr12; >> - sd-uhs-sdr25; >> - sd-uhs-sdr50; >> - sd-uhs-sdr104; >> - sd-uhs-ddr50; >> card-detect-delay = <200>; >> disable-wp; >> num-slots = <1>; >> pinctrl-names = "default"; >> pinctrl-0 = <&sdmmc_clk>, <&sdmmc_cmd>, <&sdmmc_cd>, <&sdmmc_bus4>; >> vmmc-supply = <&vcc_sd>; >> - vqmmc-supply = <&vccio_sd>; >> + vqmmc-supply = <&vcc_sd>; > that looks wrong. vccio_sd is still the vqmmc supply in the schematics even > though we don't want to switch to 1.8V . But that regulator should still be I think the vccio_sd is just the one connected to the io_domains, but the voltage source for the pull up register is not vccio_sd but vcc_io. > controllable without needing a regulator-always-on in the future. > > > Heiko
