[OpenWrt-Devel] [PATCH RFC 1/3] ramips: mtk-mmc: mt76x8: check ESD_MODE before applying AGPIO_CFG

[Chuanhong Guo]

On Mon, Jul 15, 2019 at 12:34 AM Chuanhong Guo <gch981213 at gmail.com> wrote:
>
> Since mt76x8an ver1 eco2, SDXC pins can be switched to the
> following pinmap:
> sd_d1  -> PAD_I2S_SDI
> sd_d0  -> PAD_I2S_WS
> sd_cmd -> PAD_I2S_CLK
> sd_d3  -> PAD_I2C_SCLK
> sd_d2  -> PAD_I2C_SD
> sd_clk -> PAD_GPIO0
> sd_wp  -> PAD_TXD1
> sd_cd  -> PAD_RXD1
>
> To use this pinmap, one would need to set ESD_MODE bit (bit 15)
> to 1 in GPIO1_MODE and switch other used pads into GPIO mode.
> In this mode, we don't need to switch ethernet pins to digital
> pad.
>
> Check ESD_MODE bit before applying AGPIO_CFG and use rt_sysc_m32
> to set it.
>
> Signed-off-by: Chuanhong Guo <gch981213 at gmail.com>

Pushed this single patch since it's just a fix for the original hack anyway.

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