1 // SPDX-License-Identifier: GPL-2.0-only
9 #include <linux/arm-smccc.h>
17 #include <ufs/ufshcd.h>
18 #include "ufshcd-pltfrm.h"
19 #include "ufs-sprd.h"
27 	WARN_ON(!host->priv);  in ufs_sprd_get_priv_data()
28 	return host->priv;  in ufs_sprd_get_priv_data()
34 	regmap_update_bits(priv->sysci[index].regmap, reg, bits, val);  in ufs_sprd_regmap_update()
40 	regmap_read(priv->sysci[index].regmap, reg, val);  in ufs_sprd_regmap_read()
47 	if (ufshcd_dme_get(hba, UIC_ARG_MIB(PA_LOCALVERINFO), &host->unipro_ver))  in ufs_sprd_get_unipro_ver()
48 		host->unipro_ver = 0;  in ufs_sprd_get_unipro_ver()
64 	rci->rc = devm_reset_control_get(dev, rci->name);  in ufs_sprd_get_reset_ctrl()
65 	if (IS_ERR(rci->rc)) {  in ufs_sprd_get_reset_ctrl()
66 		dev_err(dev, "failed to get reset ctrl:%s\n", rci->name);  in ufs_sprd_get_reset_ctrl()
67 		return PTR_ERR(rci->rc);  in ufs_sprd_get_reset_ctrl()
75 	sysci->regmap = syscon_regmap_lookup_by_phandle(dev->of_node, sysci->name);  in ufs_sprd_get_syscon_reg()
76 	if (IS_ERR(sysci->regmap)) {  in ufs_sprd_get_syscon_reg()
77 		dev_err(dev, "failed to get ufs syscon:%s\n", sysci->name);  in ufs_sprd_get_syscon_reg()
78 		return PTR_ERR(sysci->regmap);  in ufs_sprd_get_syscon_reg()
86 	vregi->vreg = devm_regulator_get(dev, vregi->name);  in ufs_sprd_get_vreg()
87 	if (IS_ERR(vregi->vreg)) {  in ufs_sprd_get_vreg()
88 		dev_err(dev, "failed to get vreg:%s\n", vregi->name);  in ufs_sprd_get_vreg()
89 		return PTR_ERR(vregi->vreg);  in ufs_sprd_get_vreg()
98 	struct ufs_sprd_priv *priv = host->priv;  in ufs_sprd_parse_dt()
103 		if (!priv->rci[i].name)  in ufs_sprd_parse_dt()
105 		ret = ufs_sprd_get_reset_ctrl(dev, &priv->rci[i]);  in ufs_sprd_parse_dt()
112 		if (!priv->sysci[i].name)  in ufs_sprd_parse_dt()
114 		ret = ufs_sprd_get_syscon_reg(dev, &priv->sysci[i]);  in ufs_sprd_parse_dt()
121 		if (!priv->vregi[i].name)  in ufs_sprd_parse_dt()
123 		ret = ufs_sprd_get_vreg(dev, &priv->vregi[i]);  in ufs_sprd_parse_dt()
134 	struct device *dev = hba->dev;  in ufs_sprd_common_init()
142 		return -ENOMEM;  in ufs_sprd_common_init()
144 	of_id = of_match_node(ufs_sprd_of_match, pdev->dev.of_node);  in ufs_sprd_common_init()
145 	if (of_id->data != NULL)  in ufs_sprd_common_init()
146 		host->priv = container_of(of_id->data, struct ufs_sprd_priv,  in ufs_sprd_common_init()
149 	host->hba = hba;  in ufs_sprd_common_init()
152 	hba->caps |= UFSHCD_CAP_CLK_GATING |  in ufs_sprd_common_init()
155 	hba->quirks |= UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS;  in ufs_sprd_common_init()
172 		if (host->unipro_ver >= UFS_UNIPRO_VER_1_8)  in sprd_ufs_pwr_change_notify()
173 			ufshcd_dme_configure_adapt(hba, dev_req_params->gear_tx,  in sprd_ufs_pwr_change_notify()
187 			spin_lock_irqsave(hba->host->host_lock, flags);  in ufs_sprd_suspend()
189 			spin_unlock_irqrestore(hba->host->host_lock, flags);  in ufs_sprd_suspend()
200 	dev_info(hba->dev, "ufs host reset!\n");  in ufs_sprd_n6_host_reset()
202 	reset_control_assert(priv->rci[SPRD_UFSHCI_SOFT_RST].rc);  in ufs_sprd_n6_host_reset()
204 	reset_control_deassert(priv->rci[SPRD_UFSHCI_SOFT_RST].rc);  in ufs_sprd_n6_host_reset()
211 	dev_info(hba->dev, "ufs device reset!\n");  in ufs_sprd_n6_device_reset()
213 	reset_control_assert(priv->rci[SPRD_UFS_DEV_RST].rc);  in ufs_sprd_n6_device_reset()
215 	reset_control_deassert(priv->rci[SPRD_UFS_DEV_RST].rc);  in ufs_sprd_n6_device_reset()
235 			retry--;  in ufs_sprd_n6_key_acc_enable()
247 	dev_err(hba->dev, "key reg access enable fail, disable crypto\n");  in ufs_sprd_n6_key_acc_enable()
248 	hba->caps &= ~UFSHCD_CAP_CRYPTO;  in ufs_sprd_n6_key_acc_enable()
262 	ret = regulator_enable(priv->vregi[SPRD_UFS_VDD_MPHY].vreg);  in ufs_sprd_n6_init()
264 		return -ENODEV;  in ufs_sprd_n6_init()
266 	if (hba->caps & UFSHCD_CAP_CRYPTO)  in ufs_sprd_n6_init()
306 		retry--;  in ufs_sprd_n6_phy_init()
309 	ret = -ETIMEDOUT;  in ufs_sprd_n6_phy_init()
336 		if (hba->caps & UFSHCD_CAP_CRYPTO)  in sprd_ufs_n6_hce_enable_notify()
343 			dev_err(hba->dev, "Phy setup failed (%d)\n", err);  in sprd_ufs_n6_hce_enable_notify()
392 	.sysci[SPRD_UFS_ANLG] = { .name = "sprd,ufs-anlg-syscon", },
393 	.sysci[SPRD_UFS_AON_APB] = { .name = "sprd,aon-apb-syscon", },
395 	.vregi[SPRD_UFS_VDD_MPHY] = { .name = "vdd-mphy", },
398 		.name = "sprd,ums9620-ufs",
409 	{ .compatible = "sprd,ums9620-ufs", .data = &n6_ufs.ufs_hba_sprd_vops},
417 	struct device *dev = &pdev->dev;  in ufs_sprd_probe()
420 	of_id = of_match_node(ufs_sprd_of_match, dev->of_node);  in ufs_sprd_probe()
421 	err = ufshcd_pltfrm_init(pdev, of_id->data);  in ufs_sprd_probe()
432 	pm_runtime_get_sync(&(pdev)->dev);  in ufs_sprd_remove()
447 		.name = "ufshcd-sprd",