4  * SPDX-License-Identifier:      GPL-2.0+
11 #include <asm/kona-common/clk.h>
25 	unsigned int mask;  in init_kona_mmc_core()  local
29 		printf("%s: sd host controller reset error\n", __func__);  in init_kona_mmc_core()
30 		return -EBUSY;  in init_kona_mmc_core()
33 	/* For kona a hardware reset before anything else. */  in init_kona_mmc_core()
34 	mask = sdhci_readl(host, SDHCI_CORECTRL_OFFSET) | SDHCI_CORECTRL_RESET;  in init_kona_mmc_core()
35 	sdhci_writel(host, mask, SDHCI_CORECTRL_OFFSET);  in init_kona_mmc_core()
41 			printf("%s: reset timeout error\n", __func__);  in init_kona_mmc_core()
42 			return -ETIMEDOUT;  in init_kona_mmc_core()
44 		timeout--;  in init_kona_mmc_core()
50 	/* Clear the reset bit. */  in init_kona_mmc_core()
51 	mask = mask & ~SDHCI_CORECTRL_RESET;  in init_kona_mmc_core()
52 	sdhci_writel(host, mask, SDHCI_CORECTRL_OFFSET);  in init_kona_mmc_core()
55 	mask = sdhci_readl(host, SDHCI_CORECTRL_OFFSET);  in init_kona_mmc_core()
56 	sdhci_writel(host, mask | SDHCI_CORECTRL_EN, SDHCI_CORECTRL_OFFSET);  in init_kona_mmc_core()
62 	mask = sdhci_readl(host, SDHCI_CORESTAT_OFFSET);  in init_kona_mmc_core()
63 	sdhci_writel(host, mask | SDHCI_CORESTAT_CD_SW, SDHCI_CORESTAT_OFFSET);  in init_kona_mmc_core()
70 			return -ETIMEDOUT;  in init_kona_mmc_core()
72 		timeout--;  in init_kona_mmc_core()
88 		return -ENOMEM;  in kona_sdhci_init()
114 		ret = -EINVAL;  in kona_sdhci_init()
121 	host->name = "kona-sdhci";  in kona_sdhci_init()
122 	host->ioaddr = reg_base;  in kona_sdhci_init()
123 	host->quirks = quirks;  in kona_sdhci_init()
124 	host->max_clk = max_clk;  in kona_sdhci_init()
128 		return -EINVAL;  in kona_sdhci_init()