1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
102 	{ "rockchip,rk3399-emmc-phy",	1 },
112 #define	LOWEST_SET_BIT(mask)	((((mask) - 1) & (mask)) ^ (mask))  argument
113 #define	SHIFTIN(x, mask)	((x) * LOWEST_SET_BIT(mask))  argument
116 static int rk_emmcphy_enable(struct phynode *phynode, bool enable);
126 rk_emmcphy_enable(struct phynode *phynode, bool enable)  in rk_emmcphy_enable()  argument
132 	uint32_t mask, val;  in rk_emmcphy_enable()  local
146 	if (enable) {  in rk_emmcphy_enable()
148 		mask = PHYCTRL_DR_TY;  in rk_emmcphy_enable()
150 		SYSCON_WRITE_4(sc->syscon, GRF_EMMCPHY_CON6,  in rk_emmcphy_enable()
151 		    (mask << 16) | val);  in rk_emmcphy_enable()
153 		/* Enable output tap delay */  in rk_emmcphy_enable()
154 		mask = PHYCTRL_OTAPDLYENA | PHYCTRL_OTAPDLYSEL;  in rk_emmcphy_enable()
156 		SYSCON_WRITE_4(sc->syscon, GRF_EMMCPHY_CON0,  in rk_emmcphy_enable()
157 		    (mask << 16) | val);  in rk_emmcphy_enable()
161 	mask = PHYCTRL_ENDLL | PHYCTRL_PDB;  in rk_emmcphy_enable()
163 	SYSCON_WRITE_4(sc->syscon, GRF_EMMCPHY_CON6, (mask << 16) | val);  in rk_emmcphy_enable()
165 	if (enable == false)  in rk_emmcphy_enable()
168 	sc->phy_conf = (struct rk_emmcphy_conf *)ofw_bus_search_compatible(dev,  in rk_emmcphy_enable()
169 	    compat_data)->ocd_data;  in rk_emmcphy_enable()
172 	error = clk_get_by_ofw_name(dev, 0, "emmcclk", &sc->clk);  in rk_emmcphy_enable()
175 		sc->clk = NULL;  in rk_emmcphy_enable()
179 	if (sc->clk) {  in rk_emmcphy_enable()
180 		error = clk_get_freq(sc->clk, &rate);  in rk_emmcphy_enable()
203 	mask = PHYCTRL_PDB;  in rk_emmcphy_enable()
205 	SYSCON_WRITE_4(sc->syscon, GRF_EMMCPHY_CON6, (mask << 16) | val);  in rk_emmcphy_enable()
209 	val = SYSCON_READ_4(sc->syscon, GRF_EMMCPHY_STATUS);  in rk_emmcphy_enable()
216 	mask = PHYCTRL_FRQSEL;  in rk_emmcphy_enable()
218 	SYSCON_WRITE_4(sc->syscon, GRF_EMMCPHY_CON0, (mask << 16) | val);  in rk_emmcphy_enable()
220 	/* Enable DLL */  in rk_emmcphy_enable()
221 	mask = PHYCTRL_ENDLL;  in rk_emmcphy_enable()
223 	SYSCON_WRITE_4(sc->syscon, GRF_EMMCPHY_CON6, (mask << 16) | val);  in rk_emmcphy_enable()
245 		val = SYSCON_READ_4(sc->syscon, GRF_EMMCPHY_STATUS);  in rk_emmcphy_enable()
262 	if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)  in rk_emmcphy_probe()
289 	if (OF_hasprop(xnode, "arasan,soc-ctl-syscon") &&  in rk_emmcphy_attach()
291 	    "arasan,soc-ctl-syscon", &sc->syscon) != 0) {  in rk_emmcphy_attach()
296 	if (sc->syscon == NULL) {  in rk_emmcphy_attach()