| Message ID | 20180712030417.15881-1-wens@csie.org (mailing list archive) |
|---|---|
| State | Mainlined, archived |
| Headers | show |
On Thu, Jul 12, 2018 at 11:04:17AM +0800, Chen-Yu Tsai wrote: > The Libretech ALL-H3-CC has a high density connector for attaching > an eMMC module. The module form factor and connection is specific > to Libretech, and has provisions for split vmmc/vqmmc (core and I/O) > voltage supplies, but this board does not wire the vqmmc side. The > H2+/H3/H5 SoCs do not support alternate I/O voltages for eMMC either. > Only 3.3V is supported. A specific module that ties vqmmc to vmmc, > with both at 3.3V, must be used. > > Given that a) eMMC is not designed to be hotplugged, b) power is > always provided on the pins, and c) MMC controllers can deal with > missing cards, we can enable this by default. If a module is attached > it will be picked up by the system. > > Signed-off-by: Chen-Yu Tsai <wens@csie.org> Applied, thanks! Maxime
diff --git a/arch/arm/boot/dts/sunxi-libretech-all-h3-cc.dtsi b/arch/arm/boot/dts/sunxi-libretech-all-h3-cc.dtsi index f7ffdd6658a2..1eadc132390c 100644 --- a/arch/arm/boot/dts/sunxi-libretech-all-h3-cc.dtsi +++ b/arch/arm/boot/dts/sunxi-libretech-all-h3-cc.dtsi @@ -178,6 +178,15 @@ status = "okay"; }; +&mmc2 { + pinctrl-names = "default"; + pinctrl-0 = <&mmc2_8bit_pins>; + vmmc-supply = <®_vcc_io>; + bus-width = <8>; + non-removable; + status = "okay"; +}; + &ohci0 { status = "okay"; };
The Libretech ALL-H3-CC has a high density connector for attaching an eMMC module. The module form factor and connection is specific to Libretech, and has provisions for split vmmc/vqmmc (core and I/O) voltage supplies, but this board does not wire the vqmmc side. The H2+/H3/H5 SoCs do not support alternate I/O voltages for eMMC either. Only 3.3V is supported. A specific module that ties vqmmc to vmmc, with both at 3.3V, must be used. Given that a) eMMC is not designed to be hotplugged, b) power is always provided on the pins, and c) MMC controllers can deal with missing cards, we can enable this by default. If a module is attached it will be picked up by the system. Signed-off-by: Chen-Yu Tsai <wens@csie.org> --- arch/arm/boot/dts/sunxi-libretech-all-h3-cc.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+)