Since mt76x8 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. HC5661A is a router which used this pinmap so that all 5 ethernet ports and SDXC interface can be used simutaneously. I think this patchset is kind of hacky so I decided to send it here for review/suggestions. Chuanhong Guo (3): ramips: mtk-mmc: mt76x8: check ESD_MODE before applying AGPIO_CFG ramips: mt76x8: pinctrl: add a hack for ESD_MODE bit in GPIO1_MODE ramips: enable sdxc driver for hc5661a .../ramips/dts/mt7628an_hiwifi_hc5661a.dts | 17 ++++++ .../files-4.14/drivers/mmc/host/mtk-mmc/sd.c | 12 ++-- target/linux/ramips/image/mt76x8.mk | 1 + .../500-hack-mt76x8-pinctrl-esdmode.patch | 55 +++++++++++++++++++ 4 files changed, 77 insertions(+), 8 deletions(-) create mode 100644 target/linux/ramips/patches-4.14/500-hack-mt76x8-pinctrl-esdmode.patch -- 2.21.0 _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
