111 static void sdhci_omap_start_clock(struct sdhci_omap_host *omap_host);
112 static void sdhci_omap_stop_clock(struct sdhci_omap_host *omap_host);
126 static int sdhci_omap_set_pbias(struct sdhci_omap_host *omap_host,  in sdhci_omap_set_pbias()  argument
130 	struct device *dev = omap_host->dev;  in sdhci_omap_set_pbias()
132 	if (IS_ERR(omap_host->pbias))  in sdhci_omap_set_pbias()
136 		ret = regulator_set_voltage(omap_host->pbias, iov, iov);  in sdhci_omap_set_pbias()
142 		if (omap_host->pbias_enabled)  in sdhci_omap_set_pbias()
145 		ret = regulator_enable(omap_host->pbias);  in sdhci_omap_set_pbias()
151 		omap_host->pbias_enabled = true;  in sdhci_omap_set_pbias()
153 		if (!omap_host->pbias_enabled)  in sdhci_omap_set_pbias()
156 		ret = regulator_disable(omap_host->pbias);  in sdhci_omap_set_pbias()
161 		omap_host->pbias_enabled = false;  in sdhci_omap_set_pbias()
167 static int sdhci_omap_enable_iov(struct sdhci_omap_host *omap_host,  in sdhci_omap_enable_iov()  argument
171 	struct sdhci_host *host = omap_host->host;  in sdhci_omap_enable_iov()
174 	ret = sdhci_omap_set_pbias(omap_host, false, 0);  in sdhci_omap_enable_iov()
186 	ret = sdhci_omap_set_pbias(omap_host, true, iov);  in sdhci_omap_enable_iov()
193 static void sdhci_omap_conf_bus_power(struct sdhci_omap_host *omap_host,  in sdhci_omap_conf_bus_power()  argument
199 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_HCTL);  in sdhci_omap_conf_bus_power()
207 	sdhci_omap_writel(omap_host, SDHCI_OMAP_HCTL, reg);  in sdhci_omap_conf_bus_power()
210 	sdhci_omap_writel(omap_host, SDHCI_OMAP_HCTL, reg);  in sdhci_omap_conf_bus_power()
217 		if (sdhci_omap_readl(omap_host, SDHCI_OMAP_HCTL) & HCTL_SDBP)  in sdhci_omap_conf_bus_power()
229 	struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);  in sdhci_omap_enable_sdio_irq()  local
232 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);  in sdhci_omap_enable_sdio_irq()
237 	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);  in sdhci_omap_enable_sdio_irq()
242 static inline void sdhci_omap_set_dll(struct sdhci_omap_host *omap_host,  in sdhci_omap_set_dll()  argument
248 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_DLL);  in sdhci_omap_set_dll()
252 	sdhci_omap_writel(omap_host, SDHCI_OMAP_DLL, reg);  in sdhci_omap_set_dll()
255 	sdhci_omap_writel(omap_host, SDHCI_OMAP_DLL, reg);  in sdhci_omap_set_dll()
257 		reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_DLL);  in sdhci_omap_set_dll()
262 	sdhci_omap_writel(omap_host, SDHCI_OMAP_DLL, reg);  in sdhci_omap_set_dll()
265 static void sdhci_omap_disable_tuning(struct sdhci_omap_host *omap_host)  in sdhci_omap_disable_tuning()  argument
269 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_AC12);  in sdhci_omap_disable_tuning()
271 	sdhci_omap_writel(omap_host, SDHCI_OMAP_AC12, reg);  in sdhci_omap_disable_tuning()
273 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_DLL);  in sdhci_omap_disable_tuning()
275 	sdhci_omap_writel(omap_host, SDHCI_OMAP_DLL, reg);  in sdhci_omap_disable_tuning()
282 	struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);  in sdhci_omap_execute_tuning()  local
284 	struct device *dev = omap_host->dev;  in sdhci_omap_execute_tuning()
301 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CAPA2);  in sdhci_omap_execute_tuning()
315 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_DLL);  in sdhci_omap_execute_tuning()
317 	sdhci_omap_writel(omap_host, SDHCI_OMAP_DLL, reg);  in sdhci_omap_execute_tuning()
330 	omap_host->is_tuning = true;  in sdhci_omap_execute_tuning()
338 		sdhci_omap_set_dll(omap_host, phase_delay);  in sdhci_omap_execute_tuning()
398 		sdhci_omap_set_dll(omap_host, phase_delay + i);  in sdhci_omap_execute_tuning()
415 		sdhci_omap_set_dll(omap_host, phase_delay + i);  in sdhci_omap_execute_tuning()
434 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_AC12);  in sdhci_omap_execute_tuning()
440 	sdhci_omap_set_dll(omap_host, phase_delay);  in sdhci_omap_execute_tuning()
442 	omap_host->is_tuning = false;  in sdhci_omap_execute_tuning()
447 	omap_host->is_tuning = false;  in sdhci_omap_execute_tuning()
449 	sdhci_omap_disable_tuning(omap_host);  in sdhci_omap_execute_tuning()
467 	struct sdhci_omap_host *omap_host;  in sdhci_omap_card_busy()  local
471 	omap_host = sdhci_pltfm_priv(pltfm_host);  in sdhci_omap_card_busy()
473 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);  in sdhci_omap_card_busy()
474 	ac12 = sdhci_omap_readl(omap_host, SDHCI_OMAP_AC12);  in sdhci_omap_card_busy()
479 	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);  in sdhci_omap_card_busy()
491 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_PSTATE);  in sdhci_omap_card_busy()
495 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);  in sdhci_omap_card_busy()
497 	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);  in sdhci_omap_card_busy()
514 	struct sdhci_omap_host *omap_host;  in sdhci_omap_start_signal_voltage_switch()  local
518 	omap_host = sdhci_pltfm_priv(pltfm_host);  in sdhci_omap_start_signal_voltage_switch()
519 	dev = omap_host->dev;  in sdhci_omap_start_signal_voltage_switch()
522 		reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CAPA);  in sdhci_omap_start_signal_voltage_switch()
526 		sdhci_omap_conf_bus_power(omap_host, ios->signal_voltage);  in sdhci_omap_start_signal_voltage_switch()
528 		reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_AC12);  in sdhci_omap_start_signal_voltage_switch()
530 		sdhci_omap_writel(omap_host, SDHCI_OMAP_AC12, reg);  in sdhci_omap_start_signal_voltage_switch()
534 		reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CAPA);  in sdhci_omap_start_signal_voltage_switch()
538 		sdhci_omap_conf_bus_power(omap_host, ios->signal_voltage);  in sdhci_omap_start_signal_voltage_switch()
540 		reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_AC12);  in sdhci_omap_start_signal_voltage_switch()
542 		sdhci_omap_writel(omap_host, SDHCI_OMAP_AC12, reg);  in sdhci_omap_start_signal_voltage_switch()
549 	ret = sdhci_omap_enable_iov(omap_host, iov);  in sdhci_omap_start_signal_voltage_switch()
559 static void sdhci_omap_set_timing(struct sdhci_omap_host *omap_host, u8 timing)  in sdhci_omap_set_timing()  argument
563 	struct device *dev = omap_host->dev;  in sdhci_omap_set_timing()
565 	if (!(omap_host->flags & SDHCI_OMAP_REQUIRE_IODELAY))  in sdhci_omap_set_timing()
568 	if (omap_host->timing == timing)  in sdhci_omap_set_timing()
571 	sdhci_omap_stop_clock(omap_host);  in sdhci_omap_set_timing()
573 	pinctrl_state = omap_host->pinctrl_state[timing];  in sdhci_omap_set_timing()
574 	ret = pinctrl_select_state(omap_host->pinctrl, pinctrl_state);  in sdhci_omap_set_timing()
580 	sdhci_omap_start_clock(omap_host);  in sdhci_omap_set_timing()
581 	omap_host->timing = timing;  in sdhci_omap_set_timing()
584 static void sdhci_omap_set_power_mode(struct sdhci_omap_host *omap_host,  in sdhci_omap_set_power_mode()  argument
587 	if (omap_host->bus_mode == MMC_POWER_OFF)  in sdhci_omap_set_power_mode()
588 		sdhci_omap_disable_tuning(omap_host);  in sdhci_omap_set_power_mode()
589 	omap_host->power_mode = power_mode;  in sdhci_omap_set_power_mode()
592 static void sdhci_omap_set_bus_mode(struct sdhci_omap_host *omap_host,  in sdhci_omap_set_bus_mode()  argument
597 	if (omap_host->bus_mode == mode)  in sdhci_omap_set_bus_mode()
600 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);  in sdhci_omap_set_bus_mode()
605 	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);  in sdhci_omap_set_bus_mode()
607 	omap_host->bus_mode = mode;  in sdhci_omap_set_bus_mode()
614 	struct sdhci_omap_host *omap_host;  in sdhci_omap_set_ios()  local
617 	omap_host = sdhci_pltfm_priv(pltfm_host);  in sdhci_omap_set_ios()
619 	sdhci_omap_set_bus_mode(omap_host, ios->bus_mode);  in sdhci_omap_set_ios()
620 	sdhci_omap_set_timing(omap_host, ios->timing);  in sdhci_omap_set_ios()
622 	sdhci_omap_set_power_mode(omap_host, ios->power_mode);  in sdhci_omap_set_ios()
637 static void sdhci_omap_start_clock(struct sdhci_omap_host *omap_host)  in sdhci_omap_start_clock()  argument
641 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_SYSCTL);  in sdhci_omap_start_clock()
643 	sdhci_omap_writel(omap_host, SDHCI_OMAP_SYSCTL, reg);  in sdhci_omap_start_clock()
646 static void sdhci_omap_stop_clock(struct sdhci_omap_host *omap_host)  in sdhci_omap_stop_clock()  argument
650 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_SYSCTL);  in sdhci_omap_stop_clock()
652 	sdhci_omap_writel(omap_host, SDHCI_OMAP_SYSCTL, reg);  in sdhci_omap_stop_clock()
658 	struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);  in sdhci_omap_set_clock()  local
661 	sdhci_omap_stop_clock(omap_host);  in sdhci_omap_set_clock()
670 	sdhci_omap_start_clock(omap_host);  in sdhci_omap_set_clock()
685 	struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);  in sdhci_omap_enable_dma()  local
687 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);  in sdhci_omap_enable_dma()
689 	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);  in sdhci_omap_enable_dma()
704 	struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);  in sdhci_omap_set_bus_width()  local
707 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);  in sdhci_omap_set_bus_width()
712 	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);  in sdhci_omap_set_bus_width()
722 	struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);  in sdhci_omap_init_74_clocks()  local
724 	if (omap_host->power_mode == power_mode)  in sdhci_omap_init_74_clocks()
732 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);  in sdhci_omap_init_74_clocks()
734 	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);  in sdhci_omap_init_74_clocks()
735 	sdhci_omap_writel(omap_host, SDHCI_OMAP_CMD, 0x0);  in sdhci_omap_init_74_clocks()
742 		if (sdhci_omap_readl(omap_host, SDHCI_OMAP_STAT) & INT_CC_EN)  in sdhci_omap_init_74_clocks()
749 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);  in sdhci_omap_init_74_clocks()
751 	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);  in sdhci_omap_init_74_clocks()
752 	sdhci_omap_writel(omap_host, SDHCI_OMAP_STAT, INT_CC_EN);  in sdhci_omap_init_74_clocks()
762 	struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);  in sdhci_omap_set_uhs_signaling()  local
764 	sdhci_omap_stop_clock(omap_host);  in sdhci_omap_set_uhs_signaling()
766 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);  in sdhci_omap_set_uhs_signaling()
771 	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);  in sdhci_omap_set_uhs_signaling()
774 	sdhci_omap_start_clock(omap_host);  in sdhci_omap_set_uhs_signaling()
780 	struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);  in sdhci_omap_reset()  local
783 	if (omap_host->is_tuning)  in sdhci_omap_reset()
796 	struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);  in sdhci_omap_irq()  local
798 	if (omap_host->is_tuning && host->cmd && !host->data_early &&  in sdhci_omap_irq()
839 static int sdhci_omap_set_capabilities(struct sdhci_omap_host *omap_host)  in sdhci_omap_set_capabilities()  argument
843 	struct device *dev = omap_host->dev;  in sdhci_omap_set_capabilities()
853 	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CAPA);  in sdhci_omap_set_capabilities()
861 	sdhci_omap_writel(omap_host, SDHCI_OMAP_CAPA, reg);  in sdhci_omap_set_capabilities()
899 *sdhci_omap_iodelay_pinctrl_state(struct sdhci_omap_host *omap_host, char *mode,  in sdhci_omap_iodelay_pinctrl_state()  argument
902 	struct device *dev = omap_host->dev;  in sdhci_omap_iodelay_pinctrl_state()
903 	char *version = omap_host->version;  in sdhci_omap_iodelay_pinctrl_state()
912 		pinctrl_state = pinctrl_lookup_state(omap_host->pinctrl, str);  in sdhci_omap_iodelay_pinctrl_state()
916 		pinctrl_state = pinctrl_lookup_state(omap_host->pinctrl, mode);  in sdhci_omap_iodelay_pinctrl_state()
928 						   *omap_host)  in sdhci_omap_config_iodelay_pinctrl_state()
930 	struct device *dev = omap_host->dev;  in sdhci_omap_config_iodelay_pinctrl_state()
931 	struct sdhci_host *host = omap_host->host;  in sdhci_omap_config_iodelay_pinctrl_state()
938 	if (!(omap_host->flags & SDHCI_OMAP_REQUIRE_IODELAY))  in sdhci_omap_config_iodelay_pinctrl_state()
948 	omap_host->pinctrl = devm_pinctrl_get(omap_host->dev);  in sdhci_omap_config_iodelay_pinctrl_state()
949 	if (IS_ERR(omap_host->pinctrl)) {  in sdhci_omap_config_iodelay_pinctrl_state()
951 		return PTR_ERR(omap_host->pinctrl);  in sdhci_omap_config_iodelay_pinctrl_state()
954 	state = pinctrl_lookup_state(omap_host->pinctrl, "default");  in sdhci_omap_config_iodelay_pinctrl_state()
961 	state = sdhci_omap_iodelay_pinctrl_state(omap_host, "sdr104", caps,  in sdhci_omap_config_iodelay_pinctrl_state()
966 	state = sdhci_omap_iodelay_pinctrl_state(omap_host, "ddr50", caps,  in sdhci_omap_config_iodelay_pinctrl_state()
971 	state = sdhci_omap_iodelay_pinctrl_state(omap_host, "sdr50", caps,  in sdhci_omap_config_iodelay_pinctrl_state()
976 	state = sdhci_omap_iodelay_pinctrl_state(omap_host, "sdr25", caps,  in sdhci_omap_config_iodelay_pinctrl_state()
981 	state = sdhci_omap_iodelay_pinctrl_state(omap_host, "sdr12", caps,  in sdhci_omap_config_iodelay_pinctrl_state()
986 	state = sdhci_omap_iodelay_pinctrl_state(omap_host, "ddr_1_8v", caps,  in sdhci_omap_config_iodelay_pinctrl_state()
991 		state = sdhci_omap_iodelay_pinctrl_state(omap_host, "ddr_3_3v",  in sdhci_omap_config_iodelay_pinctrl_state()
998 	state = sdhci_omap_iodelay_pinctrl_state(omap_host, "hs", caps,  in sdhci_omap_config_iodelay_pinctrl_state()
1003 	state = sdhci_omap_iodelay_pinctrl_state(omap_host, "hs", caps,  in sdhci_omap_config_iodelay_pinctrl_state()
1008 	state = sdhci_omap_iodelay_pinctrl_state(omap_host, "hs200_1_8v", caps2,  in sdhci_omap_config_iodelay_pinctrl_state()
1013 	omap_host->pinctrl_state = pinctrl_state;  in sdhci_omap_config_iodelay_pinctrl_state()
1035 	struct sdhci_omap_host *omap_host;  in sdhci_omap_probe()  local
1053 				sizeof(*omap_host));  in sdhci_omap_probe()
1060 	omap_host = sdhci_pltfm_priv(pltfm_host);  in sdhci_omap_probe()
1061 	omap_host->host = host;  in sdhci_omap_probe()
1062 	omap_host->base = host->ioaddr;  in sdhci_omap_probe()
1063 	omap_host->dev = dev;  in sdhci_omap_probe()
1064 	omap_host->power_mode = MMC_POWER_UNDEFINED;  in sdhci_omap_probe()
1065 	omap_host->timing = MMC_TIMING_LEGACY;  in sdhci_omap_probe()
1066 	omap_host->flags = data->flags;  in sdhci_omap_probe()
1077 		omap_host->version = "rev11";  in sdhci_omap_probe()
1101 	omap_host->pbias = devm_regulator_get_optional(dev, "pbias");  in sdhci_omap_probe()
1102 	if (IS_ERR(omap_host->pbias)) {  in sdhci_omap_probe()
1103 		ret = PTR_ERR(omap_host->pbias);  in sdhci_omap_probe()
1108 	omap_host->pbias_enabled = false;  in sdhci_omap_probe()
1124 	ret = sdhci_omap_set_capabilities(omap_host);  in sdhci_omap_probe()
1141 	ret = sdhci_omap_config_iodelay_pinctrl_state(omap_host);  in sdhci_omap_probe()