Hi Ryan,
On 2018/1/17 20:35, oscardagrach wrote:
> According to the hi6220 datasheet, the MMC controller is JEDEC eMMC 4.5
> compliant, in addition to supporting a clock of up to 150MHz. The Hikey
> schematic also indicates the device utilizes 1.8v signaling. Define these
> parameters in the device tree to enable HS200 mode.
>
> Signed-off-by: Ryan Grachek <ryan@xxxxxxxxx>
> ---
Applied into hisilicon dt tree.
Thanks!
BR,
Wei
> arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
> index 3aee6123d161..964e43e05ac6 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
> +++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
> @@ -299,7 +299,9 @@
> /* GPIO blocks 16 thru 19 do not appear to be routed to pins */
>
> dwmmc_0: dwmmc0@f723d000 {
> + max-frequency = <150000000>;
> cap-mmc-highspeed;
> + mmc-hs200-1_8v;
> non-removable;
> bus-width = <0x8>;
> vmmc-supply = <&ldo19>;
>
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