lkml.org 
[lkml]   [2015]   [Jan]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH v3 3/3] ARM: dts: Specify VMMC and VQMMC on rk3288-evb
Date
Hi Doug,

Am Montag, 15. Dezember 2014, 16:22:20 schrieb Doug Anderson:
> Specifying these rails should eventually let us do UHS.
>
> Signed-off-by: Doug Anderson <dianders@chromium.org>
> ---
> Changes in v3: None
> Changes in v2:
> - Fix subject line
>
> arch/arm/boot/dts/rk3288-evb.dtsi | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi
> b/arch/arm/boot/dts/rk3288-evb.dtsi index 3e067dd..d660fe6 100644
> --- a/arch/arm/boot/dts/rk3288-evb.dtsi
> +++ b/arch/arm/boot/dts/rk3288-evb.dtsi
> @@ -114,6 +114,8 @@
> pinctrl-names = "default";
> pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
> status = "okay";
> + vmmc-supply = <&vcc_io>;

according to the schematics there is a switch between the card and vcc_io with
a controlling pin called SDMMC_PWR providing a supply called vcc_sd.

So there should probably be a fixed-regulator get introduced for this, like the
older rockchip boards do.


Heiko


\
 
 \ /
  Last update: 2015-01-06 19:01    [W:0.068 / U:0.156 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site