| Message ID | 20190403215051.29536-1-papadakospan@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm64: dts: rockchip: eMMC additions for rk3328-roc-cc | expand |
On 2019/4/4 5:50, Leonidas P. Papadakos wrote: > The eMMC 5.x that Libre Computer provide for their boards supports HS200 mode. > The support is already included in the dts for their newest board: > > La Frite (AML-S805X-AC) > dts: arch/arm64/boot/dts/amlogic/meson-gxl-s805x-libretech-ac.dts > > That same eMMC is supported in the ROC-RK3328-CC: > https://www.loverpi.com/products/libre-computer-board-emmc-5-x-module > > This increases the speed of the eMMC significantly. > > Signed-off-by: Leonidas P. Papadakos <papadakospan@gmail.com> > --- > arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts > index c213ad74d..c3cf56107 100644 > --- a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts > +++ b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts > @@ -122,6 +122,10 @@ > &emmc { > bus-width = <8>; > cap-mmc-highspeed; > + disable-wp; disable-wp isn't needed. > + max-frequency = <200000000>; AFAIK, the 200Mhz eMMC SI for rk3328 is not so good for MP, so I suggest you to limit it to 150MHz.:) > + mmc-ddr-1_8v; > + mmc-hs200-1_8v; > non-removable; > pinctrl-names = "default"; > pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>; >
diff --git a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts index c213ad74d..c3cf56107 100644 --- a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts +++ b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts @@ -122,6 +122,10 @@ &emmc { bus-width = <8>; cap-mmc-highspeed; + disable-wp; + max-frequency = <200000000>; + mmc-ddr-1_8v; + mmc-hs200-1_8v; non-removable; pinctrl-names = "default"; pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
The eMMC 5.x that Libre Computer provide for their boards supports HS200 mode. The support is already included in the dts for their newest board: La Frite (AML-S805X-AC) dts: arch/arm64/boot/dts/amlogic/meson-gxl-s805x-libretech-ac.dts That same eMMC is supported in the ROC-RK3328-CC: https://www.loverpi.com/products/libre-computer-board-emmc-5-x-module This increases the speed of the eMMC significantly. Signed-off-by: Leonidas P. Papadakos <papadakospan@gmail.com> --- arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts | 4 ++++ 1 file changed, 4 insertions(+)