1 // SPDX-License-Identifier: GPL-2.0-or-later
21 #include "dw_mmc-pltfm.h"
22 #include "dw_mmc-zx.h"
36 	struct dw_mci_zx_priv_data *priv = host->priv;  in dw_mci_zx_emmc_set_delay()
37 	struct regmap *sysc_base = priv->sysc_base;  in dw_mci_zx_emmc_set_delay()
43 		return -EINVAL;  in dw_mci_zx_emmc_set_delay()
78 	} while (--loop && !(clksel & ZX_DLL_LOCKED));  in dw_mci_zx_emmc_set_delay()
81 		dev_err(host->dev, "Error: %s dll lock fail\n", __func__);  in dw_mci_zx_emmc_set_delay()
82 		return -EIO;  in dw_mci_zx_emmc_set_delay()
90 	struct dw_mci *host = slot->host;  in dw_mci_zx_emmc_execute_tuning()
91 	struct mmc_host *mmc = slot->mmc;  in dw_mci_zx_emmc_execute_tuning()
98 				end = delay - 1;  in dw_mci_zx_emmc_execute_tuning()
100 				if ((end - start) > len) {  in dw_mci_zx_emmc_execute_tuning()
102 					len = end - start;  in dw_mci_zx_emmc_execute_tuning()
105 			start = -1;  in dw_mci_zx_emmc_execute_tuning()
114 		end = delay - 1;  in dw_mci_zx_emmc_execute_tuning()
115 		if ((end - start) > len) {  in dw_mci_zx_emmc_execute_tuning()
117 			len = end - start;  in dw_mci_zx_emmc_execute_tuning()
121 		return -EIO;  in dw_mci_zx_emmc_execute_tuning()
123 	dev_info(host->dev, "%s best range: start %d end %d\n", __func__,  in dw_mci_zx_emmc_execute_tuning()
133 	/* config phase shift as 90 degree */  in dw_mci_zx_prepare_hs400_tuning()
136 		return -EIO;  in dw_mci_zx_prepare_hs400_tuning()
143 	struct dw_mci *host = slot->host;  in dw_mci_zx_execute_tuning()
145 	if (host->verid == 0x290a) /* only for emmc */  in dw_mci_zx_execute_tuning()
154 	struct device_node *np = host->dev->of_node;  in dw_mci_zx_parse_dt()
160 	node = of_parse_phandle(np, "zte,aon-syscon", 0);  in dw_mci_zx_parse_dt()
166 			return dev_err_probe(host->dev, PTR_ERR(sysc_base),  in dw_mci_zx_parse_dt()
172 	priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL);  in dw_mci_zx_parse_dt()
174 		return -ENOMEM;  in dw_mci_zx_parse_dt()
175 	priv->sysc_base = sysc_base;  in dw_mci_zx_parse_dt()
176 	host->priv = priv;  in dw_mci_zx_parse_dt()
196 	{ .compatible = "zte,zx296718-dw-mshc", .data = &zx_drv_data},
206 	match = of_match_node(dw_mci_zx_match, pdev->dev.of_node);  in dw_mci_zx_probe()
207 	drv_data = match->data;  in dw_mci_zx_probe()