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[209.85.220.65]) by mx.google.com with SMTPS id a12sor1400455pgk.70.2020.05.06.00.51.10 for (Google Transport Security); Wed, 06 May 2020 00:51:10 -0700 (PDT) Received-SPF: pass (google.com: domain of jagan@amarulasolutions.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; X-Received: by 2002:a63:6f07:: with SMTP id k7mr6325986pgc.274.1588751469934; Wed, 06 May 2020 00:51:09 -0700 (PDT) Received: from localhost.localdomain ([2405:201:c809:c7d5:c598:8eeb:af7:7f36]) by smtp.gmail.com with ESMTPSA id y186sm1011133pfy.66.2020.05.06.00.51.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 May 2020 00:51:08 -0700 (PDT) From: Jagan Teki To: kever.yang@rock-chips.com, philipp.tomsich@theobroma-systems.com, Simon Glass , Frank Wang , wmc@rock-chips.com, chenjh@rock-chips.com, heiko@sntech.de Cc: u-boot@lists.denx.de, linux-rockchip@lists.infradead.org, Belisko Marek , linux-amarula@amarulasolutions.com, Jagan Teki Subject: [PATCH v2 6/7] phy: rockchip: Add Rockchip USB TypeC PHY driver Date: Wed, 6 May 2020 13:20:24 +0530 Message-Id: <20200506075025.1677-7-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200506075025.1677-1-jagan@amarulasolutions.com> References: <20200506075025.1677-1-jagan@amarulasolutions.com> X-Original-Sender: jagan@amarulasolutions.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=bsE9ns+0; spf=pass (google.com: domain of jagan@amarulasolutions.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=jagan@amarulasolutions.com Content-Type: text/plain; charset="UTF-8" Precedence: list Mailing-list: list linux-amarula@amarulasolutions.com; contact linux-amarula+owners@amarulasolutions.com List-ID: X-Spam-Checked-In-Group: linux-amarula@amarulasolutions.com X-Google-Group-Id: 476853432473 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , Add USB TYPEC PHY driver for rockchip platform. Referenced from Linux TypeC PHY driver, currently supporting usb3-port and dp-port need to add it in the future. Signed-off-by: Frank Wang Signed-off-by: Jagan Teki --- Changes for v2: - new patch drivers/phy/rockchip/Kconfig | 7 + drivers/phy/rockchip/Makefile | 1 + drivers/phy/rockchip/phy-rockchip-typec.c | 796 ++++++++++++++++++++++ 3 files changed, 804 insertions(+) create mode 100644 drivers/phy/rockchip/phy-rockchip-typec.c diff --git a/drivers/phy/rockchip/Kconfig b/drivers/phy/rockchip/Kconfig index d73ac695e1..84cc7c876d 100644 --- a/drivers/phy/rockchip/Kconfig +++ b/drivers/phy/rockchip/Kconfig @@ -11,4 +11,11 @@ config PHY_ROCKCHIP_INNO_USB2 help Support for Rockchip USB2.0 PHY with Innosilicon IP block. +config PHY_ROCKCHIP_TYPEC + bool "Rockchip TYPEC PHY Driver" + depends on ARCH_ROCKCHIP + select PHY + help + Enable this to support the Rockchip USB TYPEC PHY. + endmenu diff --git a/drivers/phy/rockchip/Makefile b/drivers/phy/rockchip/Makefile index 9b0cbc6acf..95b2f8a3c0 100644 --- a/drivers/phy/rockchip/Makefile +++ b/drivers/phy/rockchip/Makefile @@ -4,3 +4,4 @@ # obj-$(CONFIG_PHY_ROCKCHIP_INNO_USB2) += phy-rockchip-inno-usb2.o +obj-$(CONFIG_PHY_ROCKCHIP_TYPEC) += phy-rockchip-typec.o diff --git a/drivers/phy/rockchip/phy-rockchip-typec.c b/drivers/phy/rockchip/phy-rockchip-typec.c new file mode 100644 index 0000000000..8810dd4350 --- /dev/null +++ b/drivers/phy/rockchip/phy-rockchip-typec.c @@ -0,0 +1,796 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * ROCKCHIP Type-C PHY driver. + * + * Copyright (C) 2020 Amarula Solutions(India) + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd + * Author: Chris Zhong + * Kever Yang + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +#define usleep_range(a, b) udelay((b)) + +#define CMN_SSM_BANDGAP (0x21 << 2) +#define CMN_SSM_BIAS (0x22 << 2) +#define CMN_PLLSM0_PLLEN (0x29 << 2) +#define CMN_PLLSM0_PLLPRE (0x2a << 2) +#define CMN_PLLSM0_PLLVREF (0x2b << 2) +#define CMN_PLLSM0_PLLLOCK (0x2c << 2) +#define CMN_PLLSM1_PLLEN (0x31 << 2) +#define CMN_PLLSM1_PLLPRE (0x32 << 2) +#define CMN_PLLSM1_PLLVREF (0x33 << 2) +#define CMN_PLLSM1_PLLLOCK (0x34 << 2) +#define CMN_PLLSM1_USER_DEF_CTRL (0x37 << 2) +#define CMN_ICAL_OVRD (0xc1 << 2) +#define CMN_PLL0_VCOCAL_OVRD (0x83 << 2) +#define CMN_PLL0_VCOCAL_INIT (0x84 << 2) +#define CMN_PLL0_VCOCAL_ITER (0x85 << 2) +#define CMN_PLL0_LOCK_REFCNT_START (0x90 << 2) +#define CMN_PLL0_LOCK_PLLCNT_START (0x92 << 2) +#define CMN_PLL0_LOCK_PLLCNT_THR (0x93 << 2) +#define CMN_PLL0_INTDIV (0x94 << 2) +#define CMN_PLL0_FRACDIV (0x95 << 2) +#define CMN_PLL0_HIGH_THR (0x96 << 2) +#define CMN_PLL0_DSM_DIAG (0x97 << 2) +#define CMN_PLL0_SS_CTRL1 (0x98 << 2) +#define CMN_PLL0_SS_CTRL2 (0x99 << 2) +#define CMN_PLL1_VCOCAL_START (0xa1 << 2) +#define CMN_PLL1_VCOCAL_OVRD (0xa3 << 2) +#define CMN_PLL1_VCOCAL_INIT (0xa4 << 2) +#define CMN_PLL1_VCOCAL_ITER (0xa5 << 2) +#define CMN_PLL1_LOCK_REFCNT_START (0xb0 << 2) +#define CMN_PLL1_LOCK_PLLCNT_START (0xb2 << 2) +#define CMN_PLL1_LOCK_PLLCNT_THR (0xb3 << 2) +#define CMN_PLL1_INTDIV (0xb4 << 2) +#define CMN_PLL1_FRACDIV (0xb5 << 2) +#define CMN_PLL1_HIGH_THR (0xb6 << 2) +#define CMN_PLL1_DSM_DIAG (0xb7 << 2) +#define CMN_PLL1_SS_CTRL1 (0xb8 << 2) +#define CMN_PLL1_SS_CTRL2 (0xb9 << 2) +#define CMN_RXCAL_OVRD (0xd1 << 2) + +#define CMN_TXPUCAL_CTRL (0xe0 << 2) +#define CMN_TXPUCAL_OVRD (0xe1 << 2) +#define CMN_TXPDCAL_CTRL (0xf0 << 2) +#define CMN_TXPDCAL_OVRD (0xf1 << 2) + +/* For CMN_TXPUCAL_CTRL, CMN_TXPDCAL_CTRL */ +#define CMN_TXPXCAL_START BIT(15) +#define CMN_TXPXCAL_DONE BIT(14) +#define CMN_TXPXCAL_NO_RESPONSE BIT(13) +#define CMN_TXPXCAL_CURRENT_RESPONSE BIT(12) + +#define CMN_TXPU_ADJ_CTRL (0x108 << 2) +#define CMN_TXPD_ADJ_CTRL (0x10c << 2) + +/* + * For CMN_TXPUCAL_CTRL, CMN_TXPDCAL_CTRL, + * CMN_TXPU_ADJ_CTRL, CMN_TXPDCAL_CTRL + * + * NOTE: some of these registers are documented to be 2's complement + * signed numbers, but then documented to be always positive. Weird. + * In such a case, using CMN_CALIB_CODE_POS() avoids the unnecessary + * sign extension. + */ +#define CMN_CALIB_CODE_WIDTH 7 +#define CMN_CALIB_CODE_OFFSET 0 +#define CMN_CALIB_CODE_MASK GENMASK(CMN_CALIB_CODE_WIDTH, 0) +#define CMN_CALIB_CODE(x) \ + sign_extend32((x) >> CMN_CALIB_CODE_OFFSET, CMN_CALIB_CODE_WIDTH) + +#define CMN_CALIB_CODE_POS_MASK GENMASK(CMN_CALIB_CODE_WIDTH - 1, 0) +#define CMN_CALIB_CODE_POS(x) \ + (((x) >> CMN_CALIB_CODE_OFFSET) & CMN_CALIB_CODE_POS_MASK) + +#define CMN_DIAG_PLL0_FBH_OVRD (0x1c0 << 2) +#define CMN_DIAG_PLL0_FBL_OVRD (0x1c1 << 2) +#define CMN_DIAG_PLL0_OVRD (0x1c2 << 2) +#define CMN_DIAG_PLL0_V2I_TUNE (0x1c5 << 2) +#define CMN_DIAG_PLL0_CP_TUNE (0x1c6 << 2) +#define CMN_DIAG_PLL0_LF_PROG (0x1c7 << 2) +#define CMN_DIAG_PLL1_FBH_OVRD (0x1d0 << 2) +#define CMN_DIAG_PLL1_FBL_OVRD (0x1d1 << 2) +#define CMN_DIAG_PLL1_OVRD (0x1d2 << 2) +#define CMN_DIAG_PLL1_V2I_TUNE (0x1d5 << 2) +#define CMN_DIAG_PLL1_CP_TUNE (0x1d6 << 2) +#define CMN_DIAG_PLL1_LF_PROG (0x1d7 << 2) +#define CMN_DIAG_PLL1_PTATIS_TUNE1 (0x1d8 << 2) +#define CMN_DIAG_PLL1_PTATIS_TUNE2 (0x1d9 << 2) +#define CMN_DIAG_PLL1_INCLK_CTRL (0x1da << 2) +#define CMN_DIAG_HSCLK_SEL (0x1e0 << 2) + +#define XCVR_PSM_RCTRL(n) ((0x4001 | ((n) << 9)) << 2) +#define XCVR_PSM_CAL_TMR(n) ((0x4002 | ((n) << 9)) << 2) +#define XCVR_PSM_A0IN_TMR(n) ((0x4003 | ((n) << 9)) << 2) +#define TX_TXCC_CAL_SCLR_MULT(n) ((0x4047 | ((n) << 9)) << 2) +#define TX_TXCC_CPOST_MULT_00(n) ((0x404c | ((n) << 9)) << 2) +#define TX_TXCC_CPOST_MULT_01(n) ((0x404d | ((n) << 9)) << 2) +#define TX_TXCC_CPOST_MULT_10(n) ((0x404e | ((n) << 9)) << 2) +#define TX_TXCC_CPOST_MULT_11(n) ((0x404f | ((n) << 9)) << 2) +#define TX_TXCC_MGNFS_MULT_000(n) ((0x4050 | ((n) << 9)) << 2) +#define TX_TXCC_MGNFS_MULT_001(n) ((0x4051 | ((n) << 9)) << 2) +#define TX_TXCC_MGNFS_MULT_010(n) ((0x4052 | ((n) << 9)) << 2) +#define TX_TXCC_MGNFS_MULT_011(n) ((0x4053 | ((n) << 9)) << 2) +#define TX_TXCC_MGNFS_MULT_100(n) ((0x4054 | ((n) << 9)) << 2) +#define TX_TXCC_MGNFS_MULT_101(n) ((0x4055 | ((n) << 9)) << 2) +#define TX_TXCC_MGNFS_MULT_110(n) ((0x4056 | ((n) << 9)) << 2) +#define TX_TXCC_MGNFS_MULT_111(n) ((0x4057 | ((n) << 9)) << 2) +#define TX_TXCC_MGNLS_MULT_000(n) ((0x4058 | ((n) << 9)) << 2) +#define TX_TXCC_MGNLS_MULT_001(n) ((0x4059 | ((n) << 9)) << 2) +#define TX_TXCC_MGNLS_MULT_010(n) ((0x405a | ((n) << 9)) << 2) +#define TX_TXCC_MGNLS_MULT_011(n) ((0x405b | ((n) << 9)) << 2) +#define TX_TXCC_MGNLS_MULT_100(n) ((0x405c | ((n) << 9)) << 2) +#define TX_TXCC_MGNLS_MULT_101(n) ((0x405d | ((n) << 9)) << 2) +#define TX_TXCC_MGNLS_MULT_110(n) ((0x405e | ((n) << 9)) << 2) +#define TX_TXCC_MGNLS_MULT_111(n) ((0x405f | ((n) << 9)) << 2) + +#define XCVR_DIAG_PLLDRC_CTRL(n) ((0x40e0 | ((n) << 9)) << 2) +#define XCVR_DIAG_BIDI_CTRL(n) ((0x40e8 | ((n) << 9)) << 2) +#define XCVR_DIAG_LANE_FCM_EN_MGN(n) ((0x40f2 | ((n) << 9)) << 2) +#define TX_PSC_A0(n) ((0x4100 | ((n) << 9)) << 2) +#define TX_PSC_A1(n) ((0x4101 | ((n) << 9)) << 2) +#define TX_PSC_A2(n) ((0x4102 | ((n) << 9)) << 2) +#define TX_PSC_A3(n) ((0x4103 | ((n) << 9)) << 2) +#define TX_RCVDET_CTRL(n) ((0x4120 | ((n) << 9)) << 2) +#define TX_RCVDET_EN_TMR(n) ((0x4122 | ((n) << 9)) << 2) +#define TX_RCVDET_ST_TMR(n) ((0x4123 | ((n) << 9)) << 2) +#define TX_DIAG_TX_DRV(n) ((0x41e1 | ((n) << 9)) << 2) +#define TX_DIAG_BGREF_PREDRV_DELAY (0x41e7 << 2) + +/* Use this for "n" in macros like "_MULT_XXX" to target the aux channel */ +#define AUX_CH_LANE 8 + +#define TX_ANA_CTRL_REG_1 (0x5020 << 2) + +#define TXDA_DP_AUX_EN BIT(15) +#define AUXDA_SE_EN BIT(14) +#define TXDA_CAL_LATCH_EN BIT(13) +#define AUXDA_POLARITY BIT(12) +#define TXDA_DRV_POWER_ISOLATION_EN BIT(11) +#define TXDA_DRV_POWER_EN_PH_2_N BIT(10) +#define TXDA_DRV_POWER_EN_PH_1_N BIT(9) +#define TXDA_BGREF_EN BIT(8) +#define TXDA_DRV_LDO_EN BIT(7) +#define TXDA_DECAP_EN_DEL BIT(6) +#define TXDA_DECAP_EN BIT(5) +#define TXDA_UPHY_SUPPLY_EN_DEL BIT(4) +#define TXDA_UPHY_SUPPLY_EN BIT(3) +#define TXDA_LOW_LEAKAGE_EN BIT(2) +#define TXDA_DRV_IDLE_LOWI_EN BIT(1) +#define TXDA_DRV_CMN_MODE_EN BIT(0) + +#define TX_ANA_CTRL_REG_2 (0x5021 << 2) + +#define AUXDA_DEBOUNCING_CLK BIT(15) +#define TXDA_LPBK_RECOVERED_CLK_EN BIT(14) +#define TXDA_LPBK_ISI_GEN_EN BIT(13) +#define TXDA_LPBK_SERIAL_EN BIT(12) +#define TXDA_LPBK_LINE_EN BIT(11) +#define TXDA_DRV_LDO_REDC_SINKIQ BIT(10) +#define XCVR_DECAP_EN_DEL BIT(9) +#define XCVR_DECAP_EN BIT(8) +#define TXDA_MPHY_ENABLE_HS_NT BIT(7) +#define TXDA_MPHY_SA_MODE BIT(6) +#define TXDA_DRV_LDO_RBYR_FB_EN BIT(5) +#define TXDA_DRV_RST_PULL_DOWN BIT(4) +#define TXDA_DRV_LDO_BG_FB_EN BIT(3) +#define TXDA_DRV_LDO_BG_REF_EN BIT(2) +#define TXDA_DRV_PREDRV_EN_DEL BIT(1) +#define TXDA_DRV_PREDRV_EN BIT(0) + +#define TXDA_COEFF_CALC_CTRL (0x5022 << 2) + +#define TX_HIGH_Z BIT(6) +#define TX_VMARGIN_OFFSET 3 +#define TX_VMARGIN_MASK 0x7 +#define LOW_POWER_SWING_EN BIT(2) +#define TX_FCM_DRV_MAIN_EN BIT(1) +#define TX_FCM_FULL_MARGIN BIT(0) + +#define TX_DIG_CTRL_REG_2 (0x5024 << 2) + +#define TX_HIGH_Z_TM_EN BIT(15) +#define TX_RESCAL_CODE_OFFSET 0 +#define TX_RESCAL_CODE_MASK 0x3f + +#define TXDA_CYA_AUXDA_CYA (0x5025 << 2) +#define TX_ANA_CTRL_REG_3 (0x5026 << 2) +#define TX_ANA_CTRL_REG_4 (0x5027 << 2) +#define TX_ANA_CTRL_REG_5 (0x5029 << 2) + +#define RX_PSC_A0(n) ((0x8000 | ((n) << 9)) << 2) +#define RX_PSC_A1(n) ((0x8001 | ((n) << 9)) << 2) +#define RX_PSC_A2(n) ((0x8002 | ((n) << 9)) << 2) +#define RX_PSC_A3(n) ((0x8003 | ((n) << 9)) << 2) +#define RX_PSC_CAL(n) ((0x8006 | ((n) << 9)) << 2) +#define RX_PSC_RDY(n) ((0x8007 | ((n) << 9)) << 2) +#define RX_IQPI_ILL_CAL_OVRD (0x8023 << 2) +#define RX_EPI_ILL_CAL_OVRD (0x8033 << 2) +#define RX_SDCAL0_OVRD (0x8041 << 2) +#define RX_SDCAL1_OVRD (0x8049 << 2) +#define RX_SLC_INIT (0x806d << 2) +#define RX_SLC_RUN (0x806e << 2) +#define RX_CDRLF_CNFG2 (0x8081 << 2) +#define RX_SIGDET_HL_FILT_TMR(n) ((0x8090 | ((n) << 9)) << 2) +#define RX_SLC_IOP0_OVRD (0x8101 << 2) +#define RX_SLC_IOP1_OVRD (0x8105 << 2) +#define RX_SLC_QOP0_OVRD (0x8109 << 2) +#define RX_SLC_QOP1_OVRD (0x810d << 2) +#define RX_SLC_EOP0_OVRD (0x8111 << 2) +#define RX_SLC_EOP1_OVRD (0x8115 << 2) +#define RX_SLC_ION0_OVRD (0x8119 << 2) +#define RX_SLC_ION1_OVRD (0x811d << 2) +#define RX_SLC_QON0_OVRD (0x8121 << 2) +#define RX_SLC_QON1_OVRD (0x8125 << 2) +#define RX_SLC_EON0_OVRD (0x8129 << 2) +#define RX_SLC_EON1_OVRD (0x812d << 2) +#define RX_SLC_IEP0_OVRD (0x8131 << 2) +#define RX_SLC_IEP1_OVRD (0x8135 << 2) +#define RX_SLC_QEP0_OVRD (0x8139 << 2) +#define RX_SLC_QEP1_OVRD (0x813d << 2) +#define RX_SLC_EEP0_OVRD (0x8141 << 2) +#define RX_SLC_EEP1_OVRD (0x8145 << 2) +#define RX_SLC_IEN0_OVRD (0x8149 << 2) +#define RX_SLC_IEN1_OVRD (0x814d << 2) +#define RX_SLC_QEN0_OVRD (0x8151 << 2) +#define RX_SLC_QEN1_OVRD (0x8155 << 2) +#define RX_SLC_EEN0_OVRD (0x8159 << 2) +#define RX_SLC_EEN1_OVRD (0x815d << 2) +#define RX_REE_CTRL_DATA_MASK(n) ((0x81bb | ((n) << 9)) << 2) +#define RX_DIAG_SIGDET_TUNE(n) ((0x81dc | ((n) << 9)) << 2) +#define RX_DIAG_SC2C_DELAY (0x81e1 << 2) + +#define PMA_LANE_CFG (0xc000 << 2) +#define PIPE_CMN_CTRL1 (0xc001 << 2) +#define PIPE_CMN_CTRL2 (0xc002 << 2) +#define PIPE_COM_LOCK_CFG1 (0xc003 << 2) +#define PIPE_COM_LOCK_CFG2 (0xc004 << 2) +#define PIPE_RCV_DET_INH (0xc005 << 2) +#define DP_MODE_CTL (0xc008 << 2) +#define DP_CLK_CTL (0xc009 << 2) +#define STS (0xc00F << 2) +#define PHY_ISO_CMN_CTRL (0xc010 << 2) +#define PHY_DP_TX_CTL (0xc408 << 2) +#define PMA_CMN_CTRL1 (0xc800 << 2) +#define PHY_PMA_ISO_CMN_CTRL (0xc810 << 2) +#define PHY_ISOLATION_CTRL (0xc81f << 2) +#define PHY_PMA_ISO_XCVR_CTRL(n) ((0xcc11 | ((n) << 6)) << 2) +#define PHY_PMA_ISO_LINK_MODE(n) ((0xcc12 | ((n) << 6)) << 2) +#define PHY_PMA_ISO_PWRST_CTRL(n) ((0xcc13 | ((n) << 6)) << 2) +#define PHY_PMA_ISO_TX_DATA_LO(n) ((0xcc14 | ((n) << 6)) << 2) +#define PHY_PMA_ISO_TX_DATA_HI(n) ((0xcc15 | ((n) << 6)) << 2) +#define PHY_PMA_ISO_RX_DATA_LO(n) ((0xcc16 | ((n) << 6)) << 2) +#define PHY_PMA_ISO_RX_DATA_HI(n) ((0xcc17 | ((n) << 6)) << 2) +#define TX_BIST_CTRL(n) ((0x4140 | ((n) << 9)) << 2) +#define TX_BIST_UDDWR(n) ((0x4141 | ((n) << 9)) << 2) + +/* + * Selects which PLL clock will be driven on the analog high speed + * clock 0: PLL 0 div 1 + * clock 1: PLL 1 div 2 + */ +#define CLK_PLL_CONFIG 0X30 +#define CLK_PLL_MASK 0x33 + +#define CMN_READY BIT(0) + +#define DP_PLL_CLOCK_ENABLE BIT(2) +#define DP_PLL_ENABLE BIT(0) +#define DP_PLL_DATA_RATE_RBR ((2 << 12) | (4 << 8)) +#define DP_PLL_DATA_RATE_HBR ((2 << 12) | (4 << 8)) +#define DP_PLL_DATA_RATE_HBR2 ((1 << 12) | (2 << 8)) + +#define DP_MODE_A0 BIT(4) +#define DP_MODE_A2 BIT(6) +#define DP_MODE_ENTER_A0 0xc101 +#define DP_MODE_ENTER_A2 0xc104 + +#define PHY_MODE_SET_TIMEOUT 100000 + +#define PIN_ASSIGN_C_E 0x51d9 +#define PIN_ASSIGN_D_F 0x5100 + +#define MODE_DISCONNECT 0 +#define MODE_UFP_USB BIT(0) +#define MODE_DFP_USB BIT(1) +#define MODE_DFP_DP BIT(2) + +struct usb3phy_reg { + u32 offset; + u32 enable_bit; + u32 write_enable; +}; + +/** + * struct rockchip_usb3phy_port_cfg: usb3-phy port configuration. + * @reg: the base address for usb3-phy config. + * @typec_conn_dir: the register of type-c connector direction. + * @usb3tousb2_en: the register of type-c force usb2 to usb2 enable. + * @external_psm: the register of type-c phy external psm clock. + * @pipe_status: the register of type-c phy pipe status. + * @usb3_host_disable: the register of type-c usb3 host disable. + * @usb3_host_port: the register of type-c usb3 host port. + * @uphy_dp_sel: the register of type-c phy DP select control. + */ +struct rockchip_usb3phy_port_cfg { + unsigned int reg; + struct usb3phy_reg typec_conn_dir; + struct usb3phy_reg usb3tousb2_en; + struct usb3phy_reg external_psm; + struct usb3phy_reg pipe_status; + struct usb3phy_reg usb3_host_disable; + struct usb3phy_reg usb3_host_port; + struct usb3phy_reg uphy_dp_sel; +}; + +struct rockchip_tcphy { + void __iomem *reg_base; + void __iomem *grf_base; + struct clk clk_core; + struct clk clk_ref; + struct reset_ctl uphy_rst; + struct reset_ctl pipe_rst; + struct reset_ctl tcphy_rst; + const struct rockchip_usb3phy_port_cfg *port_cfgs; + u8 mode; +}; + +struct phy_reg { + u16 value; + u32 addr; +}; + +static struct phy_reg usb3_pll_cfg[] = { + { 0xf0, CMN_PLL0_VCOCAL_INIT }, + { 0x18, CMN_PLL0_VCOCAL_ITER }, + { 0xd0, CMN_PLL0_INTDIV }, + { 0x4a4a, CMN_PLL0_FRACDIV }, + { 0x34, CMN_PLL0_HIGH_THR }, + { 0x1ee, CMN_PLL0_SS_CTRL1 }, + { 0x7f03, CMN_PLL0_SS_CTRL2 }, + { 0x20, CMN_PLL0_DSM_DIAG }, + { 0, CMN_DIAG_PLL0_OVRD }, + { 0, CMN_DIAG_PLL0_FBH_OVRD }, + { 0, CMN_DIAG_PLL0_FBL_OVRD }, + { 0x7, CMN_DIAG_PLL0_V2I_TUNE }, + { 0x45, CMN_DIAG_PLL0_CP_TUNE }, + { 0x8, CMN_DIAG_PLL0_LF_PROG }, +}; + +static inline int property_enable(struct rockchip_tcphy *priv, + const struct usb3phy_reg *reg, bool en) +{ + u32 mask = 1 << reg->write_enable; + u32 val = en << reg->enable_bit; + + return writel(val | mask, priv->grf_base + reg->offset); +} + +static int rockchip_tcphy_get_mode(struct rockchip_tcphy *priv) +{ + /* TODO: Add proper logic to find DP or USB3 mode */ + return MODE_DFP_USB | MODE_UFP_USB; +} + +static void rockchip_tcphy_cfg_24m(struct rockchip_tcphy *priv) +{ + u32 i, rdata; + + /* + * cmn_ref_clk_sel = 3, select the 24Mhz for clk parent + * cmn_psm_clk_dig_div = 2, set the clk division to 2 + */ + writel(0x830, priv->reg_base + PMA_CMN_CTRL1); + for (i = 0; i < 4; i++) { + /* + * The following PHY configuration assumes a 24 MHz reference + * clock. + */ + writel(0x90, priv->reg_base + XCVR_DIAG_LANE_FCM_EN_MGN(i)); + writel(0x960, priv->reg_base + TX_RCVDET_EN_TMR(i)); + writel(0x30, priv->reg_base + TX_RCVDET_ST_TMR(i)); + } + + rdata = readl(priv->reg_base + CMN_DIAG_HSCLK_SEL); + rdata &= ~CLK_PLL_MASK; + rdata |= CLK_PLL_CONFIG; + writel(rdata, priv->reg_base + CMN_DIAG_HSCLK_SEL); +} + +static void rockchip_tcphy_cfg_usb3_pll(struct rockchip_tcphy *priv) +{ + u32 i; + + /* load the configuration of PLL0 */ + for (i = 0; i < ARRAY_SIZE(usb3_pll_cfg); i++) + writel(usb3_pll_cfg[i].value, + priv->reg_base + usb3_pll_cfg[i].addr); +} + +static void rockchip_tcphy_tx_usb3_cfg_lane(struct rockchip_tcphy *priv, + u32 lane) +{ + writel(0x7799, priv->reg_base + TX_PSC_A0(lane)); + writel(0x7798, priv->reg_base + TX_PSC_A1(lane)); + writel(0x5098, priv->reg_base + TX_PSC_A2(lane)); + writel(0x5098, priv->reg_base + TX_PSC_A3(lane)); + writel(0, priv->reg_base + TX_TXCC_MGNFS_MULT_000(lane)); + writel(0xbf, priv->reg_base + XCVR_DIAG_BIDI_CTRL(lane)); +} + +static void rockchip_tcphy_rx_usb3_cfg_lane(struct rockchip_tcphy *priv, + u32 lane) +{ + writel(0xa6fd, priv->reg_base + RX_PSC_A0(lane)); + writel(0xa6fd, priv->reg_base + RX_PSC_A1(lane)); + writel(0xa410, priv->reg_base + RX_PSC_A2(lane)); + writel(0x2410, priv->reg_base + RX_PSC_A3(lane)); + writel(0x23ff, priv->reg_base + RX_PSC_CAL(lane)); + writel(0x13, priv->reg_base + RX_SIGDET_HL_FILT_TMR(lane)); + writel(0x03e7, priv->reg_base + RX_REE_CTRL_DATA_MASK(lane)); + writel(0x1004, priv->reg_base + RX_DIAG_SIGDET_TUNE(lane)); + writel(0x2010, priv->reg_base + RX_PSC_RDY(lane)); + writel(0xfb, priv->reg_base + XCVR_DIAG_BIDI_CTRL(lane)); +} + +static int rockchip_tcphy_init(struct rockchip_tcphy *priv) +{ + const struct rockchip_usb3phy_port_cfg *cfg = priv->port_cfgs; + u32 val; + int ret; + + ret = clk_enable(&priv->clk_core); + if (ret) { + dev_err(phy->dev, "failed to enable core clk (ret=%d)\n", ret); + return ret; + } + + ret = clk_enable(&priv->clk_ref); + if (ret) { + dev_err(phy->dev, "failed to enable ref clk (ret=%d)\n", ret); + goto err_clk_core; + } + + ret = reset_deassert(&priv->tcphy_rst); + if (ret) { + dev_err(phy->dev, "failed to deassert uphy-tcphy reset (ret=%d)\n", + ret); + goto err_clk_ref; + } + + property_enable(priv, &cfg->typec_conn_dir, 0); + + rockchip_tcphy_cfg_24m(priv); + + rockchip_tcphy_cfg_usb3_pll(priv); + + rockchip_tcphy_tx_usb3_cfg_lane(priv, 0); + rockchip_tcphy_rx_usb3_cfg_lane(priv, 1); + + ret = reset_deassert(&priv->uphy_rst); + if (ret) { + dev_err(phy->dev, "failed to deassert uphy rst (ret=%d)\n", + ret); + goto err_tcphy_rst; + } + + ret = readl_poll_sleep_timeout(priv->reg_base + PMA_CMN_CTRL1, + val, val & CMN_READY, 10, + PHY_MODE_SET_TIMEOUT); + if (ret < 0) { + dev_err(phy->dev, "PMA Timeout!\n"); + ret = -ETIMEDOUT; + goto err_uphy_rst; + } + + ret = reset_deassert(&priv->pipe_rst); + if (ret) { + dev_err(phy->dev, "failed to deassert pipe rst (ret=%d)\n", + ret); + goto err_uphy_rst; + } + + return 0; + +err_uphy_rst: + reset_assert(&priv->uphy_rst); +err_tcphy_rst: + reset_assert(&priv->tcphy_rst); +err_clk_ref: + clk_disable(&priv->clk_ref); +err_clk_core: + clk_disable(&priv->clk_core); + return ret; +} + +static void rockchip_tcphy_exit(struct rockchip_tcphy *priv) +{ + reset_assert(&priv->tcphy_rst); + reset_assert(&priv->uphy_rst); + reset_assert(&priv->pipe_rst); + clk_disable(&priv->clk_core); + clk_disable(&priv->clk_ref); +} + +static int tcphy_cfg_usb3_to_usb2_only(struct rockchip_tcphy *priv, + bool value) +{ + const struct rockchip_usb3phy_port_cfg *cfg = priv->port_cfgs; + + property_enable(priv, &cfg->usb3tousb2_en, value); + property_enable(priv, &cfg->usb3_host_disable, value); + property_enable(priv, &cfg->usb3_host_port, !value); + + return 0; +} + +static int rockchip_usb3_phy_power_on(struct phy *phy) +{ + struct udevice *parent = dev_get_parent(phy->dev); + struct rockchip_tcphy *priv = dev_get_priv(parent); + const struct rockchip_usb3phy_port_cfg *cfg = priv->port_cfgs; + const struct usb3phy_reg *reg = &cfg->pipe_status; + int timeout, new_mode; + u32 val; + int ret; + + new_mode = rockchip_tcphy_get_mode(priv); + if (new_mode < 0) { + dev_err(phy->dev, "invalid mode %d\n", new_mode); + return new_mode; + } + + if (priv->mode == new_mode) + return 0; + + if (priv->mode == MODE_DISCONNECT) { + ret = rockchip_tcphy_init(priv); + if (ret) { + dev_err(dev, "failed to init tcphy (ret=%d)\n", ret); + return ret; + } + } + + /* wait TCPHY for pipe ready */ + for (timeout = 0; timeout < 100; timeout++) { + val = readl(priv->grf_base + reg->offset); + if (!(val & BIT(reg->enable_bit))) { + priv->mode |= new_mode & (MODE_DFP_USB | MODE_UFP_USB); + + /* enable usb3 host */ + tcphy_cfg_usb3_to_usb2_only(priv, false); + return 0; + } + usleep_range(10, 20); + } + + if (priv->mode == MODE_DISCONNECT) + rockchip_tcphy_exit(priv); + + return -ETIMEDOUT; +} + +static int rockchip_usb3_phy_power_off(struct phy *phy) +{ + struct udevice *parent = dev_get_parent(phy->dev); + struct rockchip_tcphy *priv = dev_get_priv(parent); + + tcphy_cfg_usb3_to_usb2_only(priv, false); + + if (priv->mode == MODE_DISCONNECT) + goto exit; + + priv->mode &= ~(MODE_UFP_USB | MODE_DFP_USB); + if (priv->mode == MODE_DISCONNECT) + rockchip_tcphy_exit(priv); + +exit: + return 0; +} + +static struct phy_ops rockchip_tcphy_usb3_ops = { + .power_on = rockchip_usb3_phy_power_on, + .power_off = rockchip_usb3_phy_power_off, +}; + +static void rockchip_tcphy_pre_init(struct udevice *dev) +{ + struct rockchip_tcphy *priv = dev_get_priv(dev); + const struct rockchip_usb3phy_port_cfg *cfg = priv->port_cfgs; + + reset_assert(&priv->tcphy_rst); + reset_assert(&priv->uphy_rst); + reset_assert(&priv->pipe_rst); + + /* select external psm clock */ + property_enable(priv, &cfg->external_psm, 1); + property_enable(priv, &cfg->usb3tousb2_en, 0); + + priv->mode = MODE_DISCONNECT; +} + +static int rockchip_tcphy_parse_dt(struct udevice *dev) +{ + struct rockchip_tcphy *priv = dev_get_priv(dev); + int ret; + + priv->grf_base = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); + if (IS_ERR(priv->grf_base)) + return PTR_ERR(priv->grf_base); + + ret = clk_get_by_name(dev, "tcpdcore", &priv->clk_core); + if (ret) { + dev_err(dev, "failed to get tcpdcore clk (ret=%d)\n", ret); + return ret; + } + + ret = clk_get_by_name(dev, "tcpdphy-ref", &priv->clk_ref); + if (ret) { + dev_err(dev, "failed to get tcpdphy-ref clk (ret=%d)\n", ret); + return ret; + } + + ret = reset_get_by_name(dev, "uphy", &priv->uphy_rst); + if (ret) { + dev_err(dev, "failed to get uphy reset (ret=%d)\n", ret); + return ret; + } + + ret = reset_get_by_name(dev, "uphy-pipe", &priv->pipe_rst); + if (ret) { + dev_err(dev, "failed to get uphy-pipe reset (ret=%d)\n", ret); + return ret; + } + + ret = reset_get_by_name(dev, "uphy-tcphy", &priv->tcphy_rst); + if (ret) { + dev_err(dev, "failed to get uphy-tcphy reset (ret=%d)\n", ret); + return ret; + } + + return 0; +} + +static int rockchip_tcphy_probe(struct udevice *dev) +{ + struct rockchip_tcphy *priv = dev_get_priv(dev); + const struct rockchip_usb3phy_port_cfg *phy_cfgs; + unsigned int reg; + int index, ret; + + priv->reg_base = (void __iomem *)dev_read_addr(dev); + if (IS_ERR(priv->reg_base)) + return PTR_ERR(priv->reg_base); + + ret = dev_read_u32_index(dev, "reg", 1, ®); + if (ret) { + dev_err(dev, "failed to read reg property (ret = %d)\n", ret); + return ret; + } + + phy_cfgs = (const struct rockchip_usb3phy_port_cfg *) + dev_get_driver_data(dev); + if (!phy_cfgs) + return -EINVAL; + + /* find out a proper config which can be matched with dt. */ + index = 0; + while (phy_cfgs[index].reg) { + if (phy_cfgs[index].reg == reg) { + priv->port_cfgs = &phy_cfgs[index]; + break; + } + + ++index; + } + + if (!priv->port_cfgs) { + dev_err(dev, "failed find proper phy-cfg\n"); + return -EINVAL; + } + + ret = rockchip_tcphy_parse_dt(dev); + if (ret) + return ret; + + rockchip_tcphy_pre_init(dev); + + return 0; +} + +static int rockchip_tcphy_bind(struct udevice *dev) +{ + struct udevice *tcphy_dev; + ofnode node; + const char *name; + int ret = 0; + + dev_for_each_subnode(node, dev) { + if (!ofnode_valid(node)) { + dev_info(dev, "subnode %s not found\n", dev->name); + return -ENXIO; + } + + name = ofnode_get_name(node); + dev_dbg(dev, "subnode %s\n", name); + + if (!strcasecmp(name, "dp-port")) { + printf("Warning: dp-port not supported yet!\n"); + continue; + } else if (!strcasecmp(name, "usb3-port")) { + ret = device_bind_driver_to_node(dev, + "rockchip_tcphy_usb3_port", + name, node, &tcphy_dev); + if (ret) { + dev_err(dev, + "'%s' cannot bind 'rockchip_tcphy_usb3_port'\n", + name); + return ret; + } + } + } + + return ret; +} + +static const struct rockchip_usb3phy_port_cfg rk3399_typec_phy_cfgs[] = { + { + .reg = 0xff7c0000, + .typec_conn_dir = { 0xe580, 0, 16 }, + .usb3tousb2_en = { 0xe580, 3, 19 }, + .external_psm = { 0xe588, 14, 30 }, + .pipe_status = { 0xe5c0, 0, 0 }, + .usb3_host_disable = { 0x2434, 0, 16 }, + .usb3_host_port = { 0x2434, 12, 28 }, + .uphy_dp_sel = { 0x6268, 19, 19 }, + }, + { + .reg = 0xff800000, + .typec_conn_dir = { 0xe58c, 0, 16 }, + .usb3tousb2_en = { 0xe58c, 3, 19 }, + .external_psm = { 0xe594, 14, 30 }, + .pipe_status = { 0xe5c0, 16, 16 }, + .usb3_host_disable = { 0x2444, 0, 16 }, + .usb3_host_port = { 0x2444, 12, 28 }, + .uphy_dp_sel = { 0x6268, 3, 19 }, + }, + { /* sentinel */ } +}; + +static const struct udevice_id rockchip_typec_phy_ids[] = { + { + .compatible = "rockchip,rk3399-typec-phy", + .data = (ulong)&rk3399_typec_phy_cfgs, + }, + { /* sentinel */ } +}; + +U_BOOT_DRIVER(rockchip_tcphy_usb3_port) = { + .name = "rockchip_tcphy_usb3_port", + .id = UCLASS_PHY, + .ops = &rockchip_tcphy_usb3_ops, +}; + +U_BOOT_DRIVER(rockchip_typec_phy) = { + .name = "rockchip_typec_phy", + .id = UCLASS_PHY, + .of_match = rockchip_typec_phy_ids, + .probe = rockchip_tcphy_probe, + .bind = rockchip_tcphy_bind, + .priv_auto_alloc_size = sizeof(struct rockchip_tcphy), +};