diff options
author | Alim Akhtar <alim.akhtar@samsung.com> | 2022-06-10 16:11:16 +0530 |
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committer | Vinod Koul <vkoul@kernel.org> | 2022-06-16 17:18:37 -0700 |
commit | f1b2d06de11209771c8d8cfb68a5e48d4ef6146f (patch) | |
tree | 789884906e1feef1f91109b288fff68d32f4de27 /drivers/phy/samsung | |
parent | e313216b52813a9c51cad0bf406b60d3248b268f (diff) | |
download | linux-f1b2d06de11209771c8d8cfb68a5e48d4ef6146f.tar.bz2 |
phy: samsung-ufs: add support for FSD ufs phy driver
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>
Reviewed-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220610104119.66401-4-alim.akhtar@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/phy/samsung')
-rw-r--r-- | drivers/phy/samsung/Makefile | 1 | ||||
-rw-r--r-- | drivers/phy/samsung/phy-fsd-ufs.c | 58 | ||||
-rw-r--r-- | drivers/phy/samsung/phy-samsung-ufs.c | 3 | ||||
-rw-r--r-- | drivers/phy/samsung/phy-samsung-ufs.h | 1 |
4 files changed, 63 insertions, 0 deletions
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..c78b6c16027d --- /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 = { + .cfgs = 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 8cec7652b459..e4334529ffbc 100644 --- a/drivers/phy/samsung/phy-samsung-ufs.c +++ b/drivers/phy/samsung/phy-samsung-ufs.c @@ -358,6 +358,9 @@ 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 913542ebff7a..6320ac852f29 100644 --- a/drivers/phy/samsung/phy-samsung-ufs.h +++ b/drivers/phy/samsung/phy-samsung-ufs.h @@ -145,5 +145,6 @@ 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_ */ |