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Subject[PATCH v2 3/7] phy: samsung-ufs: add support for FSD ufs phy driver
Date
Adds support for Tesla Full Self-Driving (FSD) ufs phy driver.
This SoC has different cdr lock status offset.

Signed-off-by: Bharat Uppal <bharat.uppal@samsung.com>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
---
drivers/phy/samsung/Makefile | 1 +
drivers/phy/samsung/phy-fsd-ufs.c | 58 +++++++++++++++++++++++++++
drivers/phy/samsung/phy-samsung-ufs.c | 3 ++
drivers/phy/samsung/phy-samsung-ufs.h | 1 +
4 files changed, 63 insertions(+)
create mode 100644 drivers/phy/samsung/phy-fsd-ufs.c

diff --git a/drivers/phy/samsung/Makefile b/drivers/phy/samsung/Makefile
index 65e4cc59403f..afb34a153e34 100644
--- a/drivers/phy/samsung/Makefile
+++ b/drivers/phy/samsung/Makefile
@@ -6,6 +6,7 @@ obj-$(CONFIG_PHY_SAMSUNG_UFS) += phy-exynos-ufs.o
phy-exynos-ufs-y += phy-samsung-ufs.o
phy-exynos-ufs-y += phy-exynos7-ufs.o
phy-exynos-ufs-y += phy-exynosautov9-ufs.o
+phy-exynos-ufs-y += phy-fsd-ufs.o
obj-$(CONFIG_PHY_SAMSUNG_USB2) += phy-exynos-usb2.o
phy-exynos-usb2-y += phy-samsung-usb2.o
phy-exynos-usb2-$(CONFIG_PHY_EXYNOS4210_USB2) += phy-exynos4210-usb2.o
diff --git a/drivers/phy/samsung/phy-fsd-ufs.c b/drivers/phy/samsung/phy-fsd-ufs.c
new file mode 100644
index 000000000000..0503625bfcec
--- /dev/null
+++ b/drivers/phy/samsung/phy-fsd-ufs.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * UFS PHY driver data for FSD SoC
+ *
+ * Copyright (C) 2022 Samsung Electronics Co., Ltd.
+ *
+ */
+#include "phy-samsung-ufs.h"
+
+#define FSD_EMBEDDED_COMBO_PHY_CTRL 0x724
+#define FSD_EMBEDDED_COMBO_PHY_CTRL_MASK 0x1
+#define FSD_EMBEDDED_COMBO_PHY_CTRL_EN BIT(0)
+#define FSD_EMBEDDED_COMBO_PHY_CDR_LOCK_STATUS 0x6e
+
+static const struct samsung_ufs_phy_cfg fsd_pre_init_cfg[] = {
+ PHY_COMN_REG_CFG(0x00f, 0xfa, PWR_MODE_ANY),
+ PHY_COMN_REG_CFG(0x010, 0x82, PWR_MODE_ANY),
+ PHY_COMN_REG_CFG(0x011, 0x1e, PWR_MODE_ANY),
+ PHY_COMN_REG_CFG(0x017, 0x94, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x035, 0x58, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x036, 0x32, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x037, 0x40, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x03b, 0x83, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x042, 0x88, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x043, 0xa6, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x048, 0x74, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x04c, 0x5b, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x04d, 0x83, PWR_MODE_ANY),
+ PHY_TRSV_REG_CFG(0x05c, 0x14, PWR_MODE_ANY),
+ END_UFS_PHY_CFG
+};
+
+/* Calibration for HS mode series A/B */
+static const struct samsung_ufs_phy_cfg fsd_pre_pwr_hs_cfg[] = {
+ END_UFS_PHY_CFG
+};
+
+/* Calibration for HS mode series A/B atfer PMC */
+static const struct samsung_ufs_phy_cfg fsd_post_pwr_hs_cfg[] = {
+ END_UFS_PHY_CFG
+};
+
+static const struct samsung_ufs_phy_cfg *fsd_ufs_phy_cfgs[CFG_TAG_MAX] = {
+ [CFG_PRE_INIT] = fsd_pre_init_cfg,
+ [CFG_PRE_PWR_HS] = fsd_pre_pwr_hs_cfg,
+ [CFG_POST_PWR_HS] = fsd_post_pwr_hs_cfg,
+};
+
+const struct samsung_ufs_phy_drvdata fsd_ufs_phy = {
+ .cfg = fsd_ufs_phy_cfgs,
+ .isol = {
+ .offset = FSD_EMBEDDED_COMBO_PHY_CTRL,
+ .mask = FSD_EMBEDDED_COMBO_PHY_CTRL_MASK,
+ .en = FSD_EMBEDDED_COMBO_PHY_CTRL_EN,
+ },
+ .has_symbol_clk = 0,
+ .cdr_lock_status_offset = FSD_EMBEDDED_COMBO_PHY_CDR_LOCK_STATUS,
+};
diff --git a/drivers/phy/samsung/phy-samsung-ufs.c b/drivers/phy/samsung/phy-samsung-ufs.c
index 8e5ae228daa7..935c5c7a6d1e 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.c
+++ b/drivers/phy/samsung/phy-samsung-ufs.c
@@ -351,6 +351,9 @@ static const struct of_device_id samsung_ufs_phy_match[] = {
}, {
.compatible = "samsung,exynosautov9-ufs-phy",
.data = &exynosautov9_ufs_phy,
+ }, {
+ .compatible = "tesla,fsd-ufs-phy",
+ .data = &fsd_ufs_phy,
},
{},
};
diff --git a/drivers/phy/samsung/phy-samsung-ufs.h b/drivers/phy/samsung/phy-samsung-ufs.h
index 965c79bbc278..74b40ef8e1d8 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.h
+++ b/drivers/phy/samsung/phy-samsung-ufs.h
@@ -142,5 +142,6 @@ static inline void samsung_ufs_phy_ctrl_isol(

extern const struct samsung_ufs_phy_drvdata exynos7_ufs_phy;
extern const struct samsung_ufs_phy_drvdata exynosautov9_ufs_phy;
+extern const struct samsung_ufs_phy_drvdata fsd_ufs_phy;

#endif /* _PHY_SAMSUNG_UFS_ */
--
2.25.1
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