mmc/host/sdhci-of-at91.c

16 #include <linux/mmc/host.h>
53 static void sdhci_at91_set_force_card_detect(struct sdhci_host *host)
57 	mc1r = readb(host->ioaddr + SDMMC_MC1R);
59 	writeb(mc1r, host->ioaddr + SDMMC_MC1R);
62 static void sdhci_at91_set_clock(struct sdhci_host *host, unsigned int clock)
66 	host->mmc->actual_clock = 0;
76 	clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL);
78 	sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
83 	clk = sdhci_calc_clk(host, clock, &host->mmc->actual_clock);
86 	sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
90 			      1000, 20000, false, host, SDHCI_CLOCK_CONTROL)) {
92 		       mmc_hostname(host->mmc));
97 	sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
100 static void sdhci_at91_set_uhs_signaling(struct sdhci_host *host,
106 		mc1r = sdhci_readb(host, SDMMC_MC1R);
108 		sdhci_writeb(host, mc1r, SDMMC_MC1R);
110 	sdhci_set_uhs_signaling(host, timing);
113 static void sdhci_at91_reset(struct sdhci_host *host, u8 mask)
115 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
119 	sdhci_reset(host, mask);
121 	if ((host->mmc->caps & MMC_CAP_NONREMOVABLE)
122 	    || mmc_gpio_get_cd(host->mmc) >= 0)
123 		sdhci_at91_set_force_card_detect(host);
126 		u32 calcr = sdhci_readl(host, SDMMC_CALCR);
128 		sdhci_writel(host, calcr | SDMMC_CALCR_ALWYSON | SDMMC_CALCR_EN,
132 				      10, 20000, false, host, SDMMC_CALCR))
133 			dev_err(mmc_dev(host->mmc), "Failed to calibrate\n");
169 	struct sdhci_host *host = dev_get_drvdata(dev);
170 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
178 	caps0 = readl(host->ioaddr + SDHCI_CAPABILITIES);
179 	caps1 = readl(host->ioaddr + SDHCI_CAPABILITIES_1);
195 	writel(SDMMC_CACR_KEY | SDMMC_CACR_CAPWREN, host->ioaddr + SDMMC_CACR);
196 	writel(caps0, host->ioaddr + SDHCI_CAPABILITIES);
197 	writel(caps1, host->ioaddr + SDHCI_CAPABILITIES_1);
199 	writel(0, host->ioaddr + SDMMC_CACR);
212 	       host->ioaddr + SDHCI_PRESET_FOR_SDR12);
215 	       host->ioaddr + SDHCI_PRESET_FOR_SDR25);
218 	       host->ioaddr + SDHCI_PRESET_FOR_SDR50);
221 	       host->ioaddr + SDHCI_PRESET_FOR_SDR104);
224 	       host->ioaddr + SDHCI_PRESET_FOR_DDR50);
235 	struct sdhci_host *host = dev_get_drvdata(dev);
236 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
251 	struct sdhci_host *host = dev_get_drvdata(dev);
252 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
256 	ret = sdhci_runtime_suspend_host(host);
258 	if (host->tuning_mode != SDHCI_TUNING_MODE_3)
259 		mmc_retune_needed(host->mmc);
270 	struct sdhci_host *host = dev_get_drvdata(dev);
271 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
303 	return sdhci_runtime_resume_host(host, 0);
317 	struct sdhci_host		*host;
326 	host = sdhci_pltfm_init(pdev, soc_data->pdata, sizeof(*priv));
327 	if (IS_ERR(host))
328 		return PTR_ERR(host);
330 	pltfm_host = sdhci_priv(host);
373 	ret = mmc_of_parse(host->mmc);
386 	host->quirks2 |= SDHCI_QUIRK2_BROKEN_HS200;
388 	ret = sdhci_add_host(host);
405 	if (mmc_card_is_removable(host->mmc) &&
406 	    mmc_gpio_get_cd(host->mmc) < 0) {
407 		host->mmc->caps |= MMC_CAP_NEEDS_POLL;
408 		host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION;
425 	if ((host->mmc->caps & MMC_CAP_NONREMOVABLE)
426 	    || mmc_gpio_get_cd(host->mmc) >= 0)
427 		sdhci_at91_set_force_card_detect(host);
448 	struct sdhci_host	*host = platform_get_drvdata(pdev);
449 	struct sdhci_pltfm_host	*pltfm_host = sdhci_priv(host);