1 // SPDX-License-Identifier: GPL-2.0
3  * sdhci-pci-arasan.c - Driver for Arasan PCI Controller with
15 #include "sdhci-pci.h"
88 /* Arasan private data */
105 			return -EBUSY;  in arasan_phy_addr_poll()
109 static int arasan_phy_write(struct sdhci_host *host, u8 data, u8 offset)  in arasan_phy_write()  argument
111 	sdhci_writew(host, data, PHY_DAT_REG);  in arasan_phy_write()
116 static int arasan_phy_read(struct sdhci_host *host, u8 offset, u8 *data)  in arasan_phy_read()  argument
124 	/* Masking valid data bits */  in arasan_phy_read()
125 	*data = sdhci_readw(host, PHY_DAT_REG) & DATA_MASK;  in arasan_phy_read()
140 			return -EBUSY;  in arasan_phy_sts_poll()
144 			return -EBUSY;  in arasan_phy_sts_poll()
159 		return -EBUSY;  in arasan_phy_init()
162 		return -EBUSY;  in arasan_phy_init()
164 	/* Program CMD/Data lines */  in arasan_phy_init()
184 		return -EBUSY;  in arasan_phy_init()
190 			  u8 drv_type, u8 itap, u8 trim, u8 clk)  in arasan_phy_set()  argument
226 		ret = arasan_phy_write(host, trim, DLL_TRIM);  in arasan_phy_set()
239 			return -EBUSY;  in arasan_phy_set()
250 	if (arasan_host->chg_clk == host->mmc->ios.clock)  in arasan_select_phy_clock()
253 	arasan_host->chg_clk = host->mmc->ios.clock;  in arasan_select_phy_clock()
254 	if (host->mmc->ios.clock == 200000000)  in arasan_select_phy_clock()
256 	else if (host->mmc->ios.clock == 100000000)  in arasan_select_phy_clock()
258 	else if (host->mmc->ios.clock == 50000000)  in arasan_select_phy_clock()
263 	if (host->mmc_host_ops.hs400_enhanced_strobe) {  in arasan_select_phy_clock()
267 		switch (host->mmc->ios.timing) {  in arasan_select_phy_clock()
280 				       host->mmc->ios.drv_type, 0x0,  in arasan_select_phy_clock()
290 				       host->mmc->ios.drv_type, 0xa,  in arasan_select_phy_clock()
304 	slot->host->mmc->caps |= MMC_CAP_NONREMOVABLE | MMC_CAP_8_BIT_DATA;  in arasan_pci_probe_slot()
305 	err = arasan_phy_init(slot->host);  in arasan_pci_probe_slot()
307 		return -ENODEV;  in arasan_pci_probe_slot()