Hi Levin,
Am Dienstag, 8. Mai 2018, 04:48:24 CEST schrieb d...@t-chip.com.cn:
> From: Levin Du
>
> In roc-rk3328-cc board, the signal voltage of sdmmc is supplied by
> the vcc_sdio regulator, which is a mux between 1.8V and 3.3V,
> controlled by a special output only gpio pin.
>
> However, this
From: Levin Du
In roc-rk3328-cc board, the signal voltage of sdmmc is supplied by
the vcc_sdio regulator, which is a mux between 1.8V and 3.3V,
controlled by a special output only gpio pin.
However, this pin, not being a normal gpio in the rockchip pinctrl,
is set by bit 1 of system register GR
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