diff options
| author | Philippe Schenker <philippe.schenker@toradex.com> | 2019-05-31 17:03:47 +0200 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2020-02-09 22:45:43 +0100 |
| commit | 8f91cf1ae14493c3cfc7b96e6bc405cfc6e1d70d (patch) | |
| tree | e09293c48782d731faab4310bab5758784255d6e | |
| parent | bdf2208c0f94144136c17313e22b6d28ec80dc11 (diff) | |
ARM: dts: add UHS-I pinmuxing
The iMX7 is supporting UHS-I but as those pins are shared
a define is needed to let the user decide if he wants UHS-I.
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
| -rw-r--r-- | arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi b/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi index 4b8b3949ab80..7ccae7666ea8 100644 --- a/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi +++ b/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi @@ -343,7 +343,29 @@ status = "okay"; }; +/* The define SD_1_8 allows to use the SD interface at a higher speed mode + * if the card supports it. For this the signaling voltage is switched from + * 3.3V to 1.8V under the usdhc1's drivers control. + * All pins supplied with NVCC_SD1 must be able to cope with this + * and must (MUST!!!) not be driven with a voltage higher than 1.8V or + * the interface will not work. + */ +/* #define SD_1_8 */ &usdhc1 { +#ifdef SD_1_8 + pinctrl-names = "default", "state_100mhz", "state_200mhz"; + pinctrl-0 = <&pinctrl_usdhc1 &pinctrl_cd_usdhc1>; + pinctrl-1 = <&pinctrl_usdhc1_100mhz &pinctrl_cd_usdhc1>; + pinctrl-2 = <&pinctrl_usdhc1_200mhz &pinctrl_cd_usdhc1>; + vqmmc-supply = <®_LDO2>; +#else + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usdhc1 &pinctrl_cd_usdhc1>; + no-1-8-v; +#endif + cd-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>; + disable-wp; + enable-sdio-wakeup; keep-power-in-suspend; wakeup-source; vmmc-supply = <®_3v3>; |