[PATCH 2/2] phy: samsung-ufs: support exynosauto ufs phy driver

[Chanho Park]

This patch adds to support phy-exynosauto-ufs driver for ExynosAuto v9
series SoCs. The patch adds "samsung,exynosauto-ufs-phy" compatible.
Unlike previous exynos ufs phy, the chip uses 0x50 offset as
PHY_TRSV_REG_CFG_OFFSET.

Change-Id: I4ea333d4565af537c26a8876d1b27144eea3c3c6
Signed-off-by: Chanho Park <chanho61.park at samsung.com>
---
 .../bindings/phy/samsung,ufs-phy.yaml         |  1 +
 drivers/phy/samsung/phy-exynosauto-ufs.h      | 70 +++++++++++++++++++
 drivers/phy/samsung/phy-samsung-ufs.c         |  3 +
 drivers/phy/samsung/phy-samsung-ufs.h         |  1 +
 4 files changed, 75 insertions(+)
 create mode 100644 drivers/phy/samsung/phy-exynosauto-ufs.h

diff --git a/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml b/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml
index 636cc501b54f..8e13f8cec6a7 100644
--- a/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml
@@ -16,6 +16,7 @@ properties:
   compatible:
     enum:
       - samsung,exynos7-ufs-phy
+      - samsung,exynosauto-ufs-phy
 
   reg:
     maxItems: 1
diff --git a/drivers/phy/samsung/phy-exynosauto-ufs.h b/drivers/phy/samsung/phy-exynosauto-ufs.h
new file mode 100644
index 000000000000..3e7d7bb7f0e6
--- /dev/null
+++ b/drivers/phy/samsung/phy-exynosauto-ufs.h
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * UFS PHY driver data for Samsung EXYNOSAUTO SoC
+ *
+ * Copyright (C) 2021 Samsung Electronics Co., Ltd.
+ */
+#ifndef _PHY_EXYNOSAUTO_UFS_H_
+#define _PHY_EXYNOSAUTO_UFS_H_
+
+#include "phy-samsung-ufs.h"
+
+#define EXYNOSAUTO_EMBEDDED_COMBO_PHY_CTRL	0x728
+#define EXYNOSAUTO_EMBEDDED_COMBO_PHY_CTRL_MASK	0x1
+#define EXYNOSAUTO_EMBEDDED_COMBO_PHY_CTRL_EN	BIT(0)
+
+#define PHY_TRSV_REG_CFG_AUTO(o, v, d)	PHY_TRSV_REG_CFG_OFFSET(o, v, d, 0x50)
+
+/* Calibration for phy initialization */
+static const struct samsung_ufs_phy_cfg exynosauto_pre_init_cfg[] = {
+	PHY_COMN_REG_CFG(0x023, 0x80, PWR_MODE_ANY),
+	PHY_COMN_REG_CFG(0x01d, 0x10, PWR_MODE_ANY),
+
+	PHY_TRSV_REG_CFG_AUTO(0x044, 0xb5, PWR_MODE_ANY),
+	PHY_TRSV_REG_CFG_AUTO(0x04d, 0x43, PWR_MODE_ANY),
+	PHY_TRSV_REG_CFG_AUTO(0x05b, 0x20, PWR_MODE_ANY),
+	PHY_TRSV_REG_CFG_AUTO(0x05e, 0xc0, PWR_MODE_ANY),
+	PHY_TRSV_REG_CFG_AUTO(0x038, 0x12, PWR_MODE_ANY),
+	PHY_TRSV_REG_CFG_AUTO(0x059, 0x58, PWR_MODE_ANY),
+	PHY_TRSV_REG_CFG_AUTO(0x06c, 0x18, PWR_MODE_ANY),
+	PHY_TRSV_REG_CFG_AUTO(0x06d, 0x02, PWR_MODE_ANY),
+
+	PHY_COMN_REG_CFG(0x023, 0xc0, PWR_MODE_ANY),
+	PHY_COMN_REG_CFG(0x023, 0x00, PWR_MODE_ANY),
+
+	PHY_TRSV_REG_CFG(0x042, 0x5d, PWR_MODE_ANY),
+	PHY_TRSV_REG_CFG(0x043, 0x80, PWR_MODE_ANY),
+
+	END_UFS_PHY_CFG,
+};
+
+/* Calibration for HS mode series A/B */
+static const struct samsung_ufs_phy_cfg exynosauto_pre_pwr_hs_cfg[] = {
+	PHY_TRSV_REG_CFG(0x032, 0xbc, PWR_MODE_HS_ANY),
+	PHY_TRSV_REG_CFG(0x03c, 0x7f, PWR_MODE_HS_ANY),
+	PHY_TRSV_REG_CFG(0x048, 0xc0, PWR_MODE_HS_ANY),
+
+	PHY_TRSV_REG_CFG(0x04a, 0x00, PWR_MODE_HS_G3_SER_B),
+	PHY_TRSV_REG_CFG(0x04b, 0x10, PWR_MODE_HS_G1_SER_B |
+				      PWR_MODE_HS_G3_SER_B),
+	PHY_TRSV_REG_CFG(0x04d, 0x63, PWR_MODE_HS_G3_SER_B),
+
+	END_UFS_PHY_CFG,
+};
+
+static const struct samsung_ufs_phy_cfg *exynosauto_ufs_phy_cfgs[CFG_TAG_MAX] = {
+	[CFG_PRE_INIT]		= exynosauto_pre_init_cfg,
+	[CFG_PRE_PWR_HS]	= exynosauto_pre_pwr_hs_cfg,
+};
+
+static struct samsung_ufs_phy_drvdata exynosauto_ufs_phy = {
+	.cfg = exynosauto_ufs_phy_cfgs,
+	.isol = {
+		.offset = EXYNOSAUTO_EMBEDDED_COMBO_PHY_CTRL,
+		.mask = EXYNOSAUTO_EMBEDDED_COMBO_PHY_CTRL_MASK,
+		.en = EXYNOSAUTO_EMBEDDED_COMBO_PHY_CTRL_EN,
+	},
+	.has_symbol_clk = 0,
+};
+
+#endif /* _PHY_EXYNOSAUTO_UFS_H_ */
diff --git a/drivers/phy/samsung/phy-samsung-ufs.c b/drivers/phy/samsung/phy-samsung-ufs.c
index dd9ab1519d83..ae58db9228b8 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.c
+++ b/drivers/phy/samsung/phy-samsung-ufs.c
@@ -347,6 +347,9 @@ static const struct of_device_id samsung_ufs_phy_match[] = {
 	{
 		.compatible = "samsung,exynos7-ufs-phy",
 		.data = &exynos7_ufs_phy,
+	}, {
+		.compatible = "samsung,exynosauto-ufs-phy",
+		.data = &exynosauto_ufs_phy,
 	},
 	{},
 };
diff --git a/drivers/phy/samsung/phy-samsung-ufs.h b/drivers/phy/samsung/phy-samsung-ufs.h
index ea1ac38889c1..357876f541b0 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.h
+++ b/drivers/phy/samsung/phy-samsung-ufs.h
@@ -138,5 +138,6 @@ static inline void samsung_ufs_phy_ctrl_isol(
 }
 
 #include "phy-exynos7-ufs.h"
+#include "phy-exynosauto-ufs.h"
 
 #endif /* _PHY_SAMSUNG_UFS_ */
-- 
2.32.0