From fae125781eefcbc60e233c39b39a3c62120ae194 Mon Sep 17 00:00:00 2001 From: Chuanhong Guo Date: Sat, 13 Jul 2019 17:59:03 +0800 Subject: ramips: mtk-mmc: mt76x8: check ESD_MODE before applying AGPIO_CFG 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 --- target/linux/ramips/files-4.14/drivers/mmc/host/mtk-mmc/sd.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) (limited to 'target/linux/ramips/files-4.14/drivers') 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; -- cgit v1.2.3