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 <ay...@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
