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 <gch981...@gmail.com>
---
.../ramips/files-4.14/drivers/mmc/host/mtk-mmc/sd.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/sd.c
b/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/sd.c
index 4ced4b6605..cb0aa4231a 100644
--- a/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/sd.c
+++ b/target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/sd.c
@@ -2205,16 +2205,12 @@ static int msdc_drv_probe(struct platform_device *pdev)
struct msdc_host *host;
struct msdc_hw *hw;
int ret;
- u32 reg;
//FIXME: this should be done by pinconf and not by the sd driver
- if (ralink_soc == MT762X_SOC_MT7688 ||
- ralink_soc == MT762X_SOC_MT7628AN) {
- /* set EPHY pads to digital mode */
- reg = sdr_read32((void __iomem *)(RALINK_SYSCTL_BASE + 0x3c));
- reg |= 0x1e << 16;
- sdr_write32((void __iomem *)(RALINK_SYSCTL_BASE + 0x3c), reg);
- }
+ if ((ralink_soc == MT762X_SOC_MT7688 ||
+ ralink_soc == MT762X_SOC_MT7628AN) &&
+ (!(rt_sysc_r32(0x60) & BIT(15))))
+ rt_sysc_m32(0xf << 17, 0xf << 17, 0x3c);
hw = &msdc0_hw;
--
2.21.0
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