79 static inline u8 dw_mci_exynos_get_ciu_div(struct dw_mci *host)  in dw_mci_exynos_get_ciu_div()  argument
81 	struct dw_mci_exynos_priv_data *priv = host->priv;  in dw_mci_exynos_get_ciu_div()
89 		return SDMMC_CLKSEL_GET_DIV(mci_readl(host, CLKSEL64)) + 1;  in dw_mci_exynos_get_ciu_div()
91 		return SDMMC_CLKSEL_GET_DIV(mci_readl(host, CLKSEL)) + 1;  in dw_mci_exynos_get_ciu_div()
94 static int dw_mci_exynos_priv_init(struct dw_mci *host)  in dw_mci_exynos_priv_init()  argument
96 	struct dw_mci_exynos_priv_data *priv = host->priv;  in dw_mci_exynos_priv_init()
100 		mci_writel(host, MPSBEGIN0, 0);  in dw_mci_exynos_priv_init()
101 		mci_writel(host, MPSEND0, SDMMC_ENDING_SEC_NR_MAX);  in dw_mci_exynos_priv_init()
102 		mci_writel(host, MPSCTRL0, SDMMC_MPSCTRL_SECURE_WRITE_BIT |  in dw_mci_exynos_priv_init()
109 		priv->saved_strobe_ctrl = mci_readl(host, HS400_DLINE_CTRL);  in dw_mci_exynos_priv_init()
110 		priv->saved_dqs_en = mci_readl(host, HS400_DQS_EN);  in dw_mci_exynos_priv_init()
112 		mci_writel(host, HS400_DQS_EN, priv->saved_dqs_en);  in dw_mci_exynos_priv_init()
121 static int dw_mci_exynos_setup_clock(struct dw_mci *host)  in dw_mci_exynos_setup_clock()  argument
123 	struct dw_mci_exynos_priv_data *priv = host->priv;  in dw_mci_exynos_setup_clock()
125 	host->bus_hz /= (priv->ciu_div + 1);  in dw_mci_exynos_setup_clock()
130 static void dw_mci_exynos_set_clksel_timing(struct dw_mci *host, u32 timing)  in dw_mci_exynos_set_clksel_timing()  argument
132 	struct dw_mci_exynos_priv_data *priv = host->priv;  in dw_mci_exynos_set_clksel_timing()
137 		clksel = mci_readl(host, CLKSEL64);  in dw_mci_exynos_set_clksel_timing()
139 		clksel = mci_readl(host, CLKSEL);  in dw_mci_exynos_set_clksel_timing()
145 		mci_writel(host, CLKSEL64, clksel);  in dw_mci_exynos_set_clksel_timing()
147 		mci_writel(host, CLKSEL, clksel);  in dw_mci_exynos_set_clksel_timing()
153 	struct dw_mci *host = dev_get_drvdata(dev);  in dw_mci_exynos_suspend()  local
155 	return dw_mci_suspend(host);  in dw_mci_exynos_suspend()
160 	struct dw_mci *host = dev_get_drvdata(dev);  in dw_mci_exynos_resume()  local
162 	dw_mci_exynos_priv_init(host);  in dw_mci_exynos_resume()
163 	return dw_mci_resume(host);  in dw_mci_exynos_resume()
179 	struct dw_mci *host = dev_get_drvdata(dev);  in dw_mci_exynos_resume_noirq()  local
180 	struct dw_mci_exynos_priv_data *priv = host->priv;  in dw_mci_exynos_resume_noirq()
185 		clksel = mci_readl(host, CLKSEL64);  in dw_mci_exynos_resume_noirq()
187 		clksel = mci_readl(host, CLKSEL);  in dw_mci_exynos_resume_noirq()
192 			mci_writel(host, CLKSEL64, clksel);  in dw_mci_exynos_resume_noirq()
194 			mci_writel(host, CLKSEL, clksel);  in dw_mci_exynos_resume_noirq()
205 static void dw_mci_exynos_prepare_command(struct dw_mci *host, u32 *cmdr)  in dw_mci_exynos_prepare_command()  argument
207 	struct dw_mci_exynos_priv_data *priv = host->priv;  in dw_mci_exynos_prepare_command()
217 		if (SDMMC_CLKSEL_GET_DRV_WD3(mci_readl(host, CLKSEL64)))  in dw_mci_exynos_prepare_command()
220 		if (SDMMC_CLKSEL_GET_DRV_WD3(mci_readl(host, CLKSEL)))  in dw_mci_exynos_prepare_command()
225 static void dw_mci_exynos_config_hs400(struct dw_mci *host, u32 timing)  in dw_mci_exynos_config_hs400()  argument
227 	struct dw_mci_exynos_priv_data *priv = host->priv;  in dw_mci_exynos_config_hs400()
247 	mci_writel(host, HS400_DQS_EN, dqs);  in dw_mci_exynos_config_hs400()
248 	mci_writel(host, HS400_DLINE_CTRL, strobe);  in dw_mci_exynos_config_hs400()
251 static void dw_mci_exynos_adjust_clock(struct dw_mci *host, unsigned int wanted)  in dw_mci_exynos_adjust_clock()  argument
253 	struct dw_mci_exynos_priv_data *priv = host->priv;  in dw_mci_exynos_adjust_clock()
261 	if (!wanted || IS_ERR(host->ciu_clk))  in dw_mci_exynos_adjust_clock()
271 	div = dw_mci_exynos_get_ciu_div(host);  in dw_mci_exynos_adjust_clock()
272 	ret = clk_set_rate(host->ciu_clk, wanted * div);  in dw_mci_exynos_adjust_clock()
274 		dev_warn(host->dev,  in dw_mci_exynos_adjust_clock()
277 	actual = clk_get_rate(host->ciu_clk);  in dw_mci_exynos_adjust_clock()
278 	host->bus_hz = actual / div;  in dw_mci_exynos_adjust_clock()
280 	host->current_speed = 0;  in dw_mci_exynos_adjust_clock()
283 static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios)  in dw_mci_exynos_set_ios()  argument
285 	struct dw_mci_exynos_priv_data *priv = host->priv;  in dw_mci_exynos_set_ios()
307 	dw_mci_exynos_set_clksel_timing(host, clksel);  in dw_mci_exynos_set_ios()
310 	dw_mci_exynos_config_hs400(host, timing);  in dw_mci_exynos_set_ios()
313 	dw_mci_exynos_adjust_clock(host, wanted);  in dw_mci_exynos_set_ios()
316 static int dw_mci_exynos_parse_dt(struct dw_mci *host)  in dw_mci_exynos_parse_dt()  argument
319 	struct device_node *np = host->dev->of_node;  in dw_mci_exynos_parse_dt()
325 	priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL);  in dw_mci_exynos_parse_dt()
361 		dev_dbg(host->dev,  in dw_mci_exynos_parse_dt()
366 	host->priv = priv;  in dw_mci_exynos_parse_dt()
370 static inline u8 dw_mci_exynos_get_clksmpl(struct dw_mci *host)  in dw_mci_exynos_get_clksmpl()  argument
372 	struct dw_mci_exynos_priv_data *priv = host->priv;  in dw_mci_exynos_get_clksmpl()
376 		return SDMMC_CLKSEL_CCLK_SAMPLE(mci_readl(host, CLKSEL64));  in dw_mci_exynos_get_clksmpl()
378 		return SDMMC_CLKSEL_CCLK_SAMPLE(mci_readl(host, CLKSEL));  in dw_mci_exynos_get_clksmpl()
381 static inline void dw_mci_exynos_set_clksmpl(struct dw_mci *host, u8 sample)  in dw_mci_exynos_set_clksmpl()  argument
384 	struct dw_mci_exynos_priv_data *priv = host->priv;  in dw_mci_exynos_set_clksmpl()
388 		clksel = mci_readl(host, CLKSEL64);  in dw_mci_exynos_set_clksmpl()
390 		clksel = mci_readl(host, CLKSEL);  in dw_mci_exynos_set_clksmpl()
394 		mci_writel(host, CLKSEL64, clksel);  in dw_mci_exynos_set_clksmpl()
396 		mci_writel(host, CLKSEL, clksel);  in dw_mci_exynos_set_clksmpl()
399 static inline u8 dw_mci_exynos_move_next_clksmpl(struct dw_mci *host)  in dw_mci_exynos_move_next_clksmpl()  argument
401 	struct dw_mci_exynos_priv_data *priv = host->priv;  in dw_mci_exynos_move_next_clksmpl()
407 		clksel = mci_readl(host, CLKSEL64);  in dw_mci_exynos_move_next_clksmpl()
409 		clksel = mci_readl(host, CLKSEL);  in dw_mci_exynos_move_next_clksmpl()
416 		mci_writel(host, CLKSEL64, clksel);  in dw_mci_exynos_move_next_clksmpl()
418 		mci_writel(host, CLKSEL, clksel);  in dw_mci_exynos_move_next_clksmpl()
451 	struct dw_mci *host = slot->host;  in dw_mci_exynos_execute_tuning()  local
452 	struct dw_mci_exynos_priv_data *priv = host->priv;  in dw_mci_exynos_execute_tuning()
458 	start_smpl = dw_mci_exynos_get_clksmpl(host);  in dw_mci_exynos_execute_tuning()
461 		mci_writel(host, TMOUT, ~0);  in dw_mci_exynos_execute_tuning()
462 		smpl = dw_mci_exynos_move_next_clksmpl(host);  in dw_mci_exynos_execute_tuning()
471 		dw_mci_exynos_set_clksmpl(host, found);  in dw_mci_exynos_execute_tuning()
480 static int dw_mci_exynos_prepare_hs400_tuning(struct dw_mci *host,  in dw_mci_exynos_prepare_hs400_tuning()  argument
483 	struct dw_mci_exynos_priv_data *priv = host->priv;  in dw_mci_exynos_prepare_hs400_tuning()
485 	dw_mci_exynos_set_clksel_timing(host, priv->hs400_timing);  in dw_mci_exynos_prepare_hs400_tuning()
486 	dw_mci_exynos_adjust_clock(host, (ios->clock) << 1);  in dw_mci_exynos_prepare_hs400_tuning()