i2c: lpi2c: add lpi2c driver for i.MX7ULP

Add lpi2c driver for i.MX7ULP.
Need to enable the two options to use this driver:
CONFIG_DM_I2C=y
CONFIG_SYS_I2C_IMX_LPI2C=y

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Heiko Schocher <hs@denx.de>
Cc: Stefano Babic <sbabic@denx.de>

arch/arm/include/asm/arch-mx7ulp/imx_lpi2c.h

+/*
+ * Copyright 2016 Freescale Semiconductors, Inc.
+ *
+ * I2CLP driver for i.MX
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ */
+#ifndef __IMX_LPI2C_H__
+#define __IMX_LPI2C_H__
+
+struct imx_lpi2c_bus {
+	int index;
+	ulong base;
+	ulong driver_data;
+	int speed;
+	struct i2c_pads_info *pads_info;
+	struct udevice *bus;
+};
+
+struct imx_lpi2c_reg {
+	u32 verid;
+	u32 param;
+	u8  reserved_0[8];
+	u32 mcr;
+	u32 msr;
+	u32 mier;
+	u32 mder;
+	u32 mcfgr0;
+	u32 mcfgr1;
+	u32 mcfgr2;
+	u32 mcfgr3;
+	u8  reserved_1[16];
+	u32 mdmr;
+	u8  reserved_2[4];
+	u32 mccr0;
+	u8  reserved_3[4];
+	u32 mccr1;
+	u8  reserved_4[4];
+	u32 mfcr;
+	u32 mfsr;
+	u32 mtdr;
+	u8  reserved_5[12];
+	u32 mrdr;
+	u8  reserved_6[156];
+	u32 scr;
+	u32 ssr;
+	u32 sier;
+	u32 sder;
+	u8  reserved_7[4];
+	u32 scfgr1;
+	u32 scfgr2;
+	u8  reserved_8[20];
+	u32 samr;
+	u8  reserved_9[12];
+	u32 sasr;
+	u32 star;
+	u8  reserved_10[8];
+	u32 stdr;
+	u8  reserved_11[12];
+	u32 srdr;
+};
+
+typedef enum lpi2c_status {
+	LPI2C_SUCESS = 0,
+	LPI2C_END_PACKET_ERR,
+	LPI2C_STOP_ERR,
+	LPI2C_NAK_ERR,
+	LPI2C_ARB_LOST_ERR,
+	LPI2C_FIFO_ERR,
+	LPI2C_PIN_LOW_TIMEOUT_ERR,
+	LPI2C_DATA_MATCH_ERR,
+	LPI2C_BUSY,
+	LPI2C_IDLE,
+	LPI2C_BIT_ERR,
+	LPI2C_NO_TRANS_PROG,
+	LPI2C_DMA_REQ_FAIL,
+} lpi2c_status_t;
+
+/* ----------------------------------------------------------------------------
+   -- LPI2C Register Masks
+   ---------------------------------------------------------------------------- */
+
+/*!
+ * @addtogroup LPI2C_Register_Masks LPI2C Register Masks
+ * @{
+ */
+
+/*! @name VERID - Version ID Register */
+#define LPI2C_VERID_FEATURE_MASK                 (0xFFFFU)
+#define LPI2C_VERID_FEATURE_SHIFT                (0U)
+#define LPI2C_VERID_FEATURE(x)                   (((uint32_t)(((uint32_t)(x)) << LPI2C_VERID_FEATURE_SHIFT)) & LPI2C_VERID_FEATURE_MASK)
+#define LPI2C_VERID_MINOR_MASK                   (0xFF0000U)
+#define LPI2C_VERID_MINOR_SHIFT                  (16U)
+#define LPI2C_VERID_MINOR(x)                     (((uint32_t)(((uint32_t)(x)) << LPI2C_VERID_MINOR_SHIFT)) & LPI2C_VERID_MINOR_MASK)
+#define LPI2C_VERID_MAJOR_MASK                   (0xFF000000U)
+#define LPI2C_VERID_MAJOR_SHIFT                  (24U)
+#define LPI2C_VERID_MAJOR(x)                     (((uint32_t)(((uint32_t)(x)) << LPI2C_VERID_MAJOR_SHIFT)) & LPI2C_VERID_MAJOR_MASK)
+
+/*! @name PARAM - Parameter Register */
+#define LPI2C_PARAM_MTXFIFO_MASK                 (0xFU)
+#define LPI2C_PARAM_MTXFIFO_SHIFT                (0U)
+#define LPI2C_PARAM_MTXFIFO(x)                   (((uint32_t)(((uint32_t)(x)) << LPI2C_PARAM_MTXFIFO_SHIFT)) & LPI2C_PARAM_MTXFIFO_MASK)
+#define LPI2C_PARAM_MRXFIFO_MASK                 (0xF00U)
+#define LPI2C_PARAM_MRXFIFO_SHIFT                (8U)
+#define LPI2C_PARAM_MRXFIFO(x)                   (((uint32_t)(((uint32_t)(x)) << LPI2C_PARAM_MRXFIFO_SHIFT)) & LPI2C_PARAM_MRXFIFO_MASK)
+
+/*! @name MCR - Master Control Register */
+#define LPI2C_MCR_MEN_MASK                       (0x1U)
+#define LPI2C_MCR_MEN_SHIFT                      (0U)
+#define LPI2C_MCR_MEN(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_MCR_MEN_SHIFT)) & LPI2C_MCR_MEN_MASK)
+#define LPI2C_MCR_RST_MASK                       (0x2U)
+#define LPI2C_MCR_RST_SHIFT                      (1U)
+#define LPI2C_MCR_RST(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_MCR_RST_SHIFT)) & LPI2C_MCR_RST_MASK)
+#define LPI2C_MCR_DOZEN_MASK                     (0x4U)
+#define LPI2C_MCR_DOZEN_SHIFT                    (2U)
+#define LPI2C_MCR_DOZEN(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_MCR_DOZEN_SHIFT)) & LPI2C_MCR_DOZEN_MASK)
+#define LPI2C_MCR_DBGEN_MASK                     (0x8U)
+#define LPI2C_MCR_DBGEN_SHIFT                    (3U)
+#define LPI2C_MCR_DBGEN(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_MCR_DBGEN_SHIFT)) & LPI2C_MCR_DBGEN_MASK)
+#define LPI2C_MCR_RTF_MASK                       (0x100U)
+#define LPI2C_MCR_RTF_SHIFT                      (8U)
+#define LPI2C_MCR_RTF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_MCR_RTF_SHIFT)) & LPI2C_MCR_RTF_MASK)
+#define LPI2C_MCR_RRF_MASK                       (0x200U)
+#define LPI2C_MCR_RRF_SHIFT                      (9U)
+#define LPI2C_MCR_RRF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_MCR_RRF_SHIFT)) & LPI2C_MCR_RRF_MASK)
+
+/*! @name MSR - Master Status Register */
+#define LPI2C_MSR_TDF_MASK                       (0x1U)
+#define LPI2C_MSR_TDF_SHIFT                      (0U)
+#define LPI2C_MSR_TDF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_MSR_TDF_SHIFT)) & LPI2C_MSR_TDF_MASK)
+#define LPI2C_MSR_RDF_MASK                       (0x2U)
+#define LPI2C_MSR_RDF_SHIFT                      (1U)
+#define LPI2C_MSR_RDF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_MSR_RDF_SHIFT)) & LPI2C_MSR_RDF_MASK)
+#define LPI2C_MSR_EPF_MASK                       (0x100U)
+#define LPI2C_MSR_EPF_SHIFT                      (8U)
+#define LPI2C_MSR_EPF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_MSR_EPF_SHIFT)) & LPI2C_MSR_EPF_MASK)
+#define LPI2C_MSR_SDF_MASK                       (0x200U)
+#define LPI2C_MSR_SDF_SHIFT                      (9U)
+#define LPI2C_MSR_SDF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_MSR_SDF_SHIFT)) & LPI2C_MSR_SDF_MASK)
+#define LPI2C_MSR_NDF_MASK                       (0x400U)
+#define LPI2C_MSR_NDF_SHIFT                      (10U)
+#define LPI2C_MSR_NDF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_MSR_NDF_SHIFT)) & LPI2C_MSR_NDF_MASK)
+#define LPI2C_MSR_ALF_MASK                       (0x800U)
+#define LPI2C_MSR_ALF_SHIFT                      (11U)
+#define LPI2C_MSR_ALF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_MSR_ALF_SHIFT)) & LPI2C_MSR_ALF_MASK)
+#define LPI2C_MSR_FEF_MASK                       (0x1000U)
+#define LPI2C_MSR_FEF_SHIFT                      (12U)
+#define LPI2C_MSR_FEF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_MSR_FEF_SHIFT)) & LPI2C_MSR_FEF_MASK)
+#define LPI2C_MSR_PLTF_MASK                      (0x2000U)
+#define LPI2C_MSR_PLTF_SHIFT                     (13U)
+#define LPI2C_MSR_PLTF(x)                        (((uint32_t)(((uint32_t)(x)) << LPI2C_MSR_PLTF_SHIFT)) & LPI2C_MSR_PLTF_MASK)
+#define LPI2C_MSR_DMF_MASK                       (0x4000U)
+#define LPI2C_MSR_DMF_SHIFT                      (14U)
+#define LPI2C_MSR_DMF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_MSR_DMF_SHIFT)) & LPI2C_MSR_DMF_MASK)
+#define LPI2C_MSR_MBF_MASK                       (0x1000000U)
+#define LPI2C_MSR_MBF_SHIFT                      (24U)
+#define LPI2C_MSR_MBF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_MSR_MBF_SHIFT)) & LPI2C_MSR_MBF_MASK)
+#define LPI2C_MSR_BBF_MASK                       (0x2000000U)
+#define LPI2C_MSR_BBF_SHIFT                      (25U)
+#define LPI2C_MSR_BBF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_MSR_BBF_SHIFT)) & LPI2C_MSR_BBF_MASK)
+
+/*! @name MIER - Master Interrupt Enable Register */
+#define LPI2C_MIER_TDIE_MASK                     (0x1U)
+#define LPI2C_MIER_TDIE_SHIFT                    (0U)
+#define LPI2C_MIER_TDIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_MIER_TDIE_SHIFT)) & LPI2C_MIER_TDIE_MASK)
+#define LPI2C_MIER_RDIE_MASK                     (0x2U)
+#define LPI2C_MIER_RDIE_SHIFT                    (1U)
+#define LPI2C_MIER_RDIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_MIER_RDIE_SHIFT)) & LPI2C_MIER_RDIE_MASK)
+#define LPI2C_MIER_EPIE_MASK                     (0x100U)
+#define LPI2C_MIER_EPIE_SHIFT                    (8U)
+#define LPI2C_MIER_EPIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_MIER_EPIE_SHIFT)) & LPI2C_MIER_EPIE_MASK)
+#define LPI2C_MIER_SDIE_MASK                     (0x200U)
+#define LPI2C_MIER_SDIE_SHIFT                    (9U)
+#define LPI2C_MIER_SDIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_MIER_SDIE_SHIFT)) & LPI2C_MIER_SDIE_MASK)
+#define LPI2C_MIER_NDIE_MASK                     (0x400U)
+#define LPI2C_MIER_NDIE_SHIFT                    (10U)
+#define LPI2C_MIER_NDIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_MIER_NDIE_SHIFT)) & LPI2C_MIER_NDIE_MASK)
+#define LPI2C_MIER_ALIE_MASK                     (0x800U)
+#define LPI2C_MIER_ALIE_SHIFT                    (11U)
+#define LPI2C_MIER_ALIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_MIER_ALIE_SHIFT)) & LPI2C_MIER_ALIE_MASK)
+#define LPI2C_MIER_FEIE_MASK                     (0x1000U)
+#define LPI2C_MIER_FEIE_SHIFT                    (12U)
+#define LPI2C_MIER_FEIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_MIER_FEIE_SHIFT)) & LPI2C_MIER_FEIE_MASK)
+#define LPI2C_MIER_PLTIE_MASK                    (0x2000U)
+#define LPI2C_MIER_PLTIE_SHIFT                   (13U)
+#define LPI2C_MIER_PLTIE(x)                      (((uint32_t)(((uint32_t)(x)) << LPI2C_MIER_PLTIE_SHIFT)) & LPI2C_MIER_PLTIE_MASK)
+#define LPI2C_MIER_DMIE_MASK                     (0x4000U)
+#define LPI2C_MIER_DMIE_SHIFT                    (14U)
+#define LPI2C_MIER_DMIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_MIER_DMIE_SHIFT)) & LPI2C_MIER_DMIE_MASK)
+
+/*! @name MDER - Master DMA Enable Register */
+#define LPI2C_MDER_TDDE_MASK                     (0x1U)
+#define LPI2C_MDER_TDDE_SHIFT                    (0U)
+#define LPI2C_MDER_TDDE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_MDER_TDDE_SHIFT)) & LPI2C_MDER_TDDE_MASK)
+#define LPI2C_MDER_RDDE_MASK                     (0x2U)
+#define LPI2C_MDER_RDDE_SHIFT                    (1U)
+#define LPI2C_MDER_RDDE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_MDER_RDDE_SHIFT)) & LPI2C_MDER_RDDE_MASK)
+
+/*! @name MCFGR0 - Master Configuration Register 0 */
+#define LPI2C_MCFGR0_HREN_MASK                   (0x1U)
+#define LPI2C_MCFGR0_HREN_SHIFT                  (0U)
+#define LPI2C_MCFGR0_HREN(x)                     (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR0_HREN_SHIFT)) & LPI2C_MCFGR0_HREN_MASK)
+#define LPI2C_MCFGR0_HRPOL_MASK                  (0x2U)
+#define LPI2C_MCFGR0_HRPOL_SHIFT                 (1U)
+#define LPI2C_MCFGR0_HRPOL(x)                    (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR0_HRPOL_SHIFT)) & LPI2C_MCFGR0_HRPOL_MASK)
+#define LPI2C_MCFGR0_HRSEL_MASK                  (0x4U)
+#define LPI2C_MCFGR0_HRSEL_SHIFT                 (2U)
+#define LPI2C_MCFGR0_HRSEL(x)                    (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR0_HRSEL_SHIFT)) & LPI2C_MCFGR0_HRSEL_MASK)
+#define LPI2C_MCFGR0_CIRFIFO_MASK                (0x100U)
+#define LPI2C_MCFGR0_CIRFIFO_SHIFT               (8U)
+#define LPI2C_MCFGR0_CIRFIFO(x)                  (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR0_CIRFIFO_SHIFT)) & LPI2C_MCFGR0_CIRFIFO_MASK)
+#define LPI2C_MCFGR0_RDMO_MASK                   (0x200U)
+#define LPI2C_MCFGR0_RDMO_SHIFT                  (9U)
+#define LPI2C_MCFGR0_RDMO(x)                     (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR0_RDMO_SHIFT)) & LPI2C_MCFGR0_RDMO_MASK)
+
+/*! @name MCFGR1 - Master Configuration Register 1 */
+#define LPI2C_MCFGR1_PRESCALE_MASK               (0x7U)
+#define LPI2C_MCFGR1_PRESCALE_SHIFT              (0U)
+#define LPI2C_MCFGR1_PRESCALE(x)                 (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR1_PRESCALE_SHIFT)) & LPI2C_MCFGR1_PRESCALE_MASK)
+#define LPI2C_MCFGR1_AUTOSTOP_MASK               (0x100U)
+#define LPI2C_MCFGR1_AUTOSTOP_SHIFT              (8U)
+#define LPI2C_MCFGR1_AUTOSTOP(x)                 (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR1_AUTOSTOP_SHIFT)) & LPI2C_MCFGR1_AUTOSTOP_MASK)
+#define LPI2C_MCFGR1_IGNACK_MASK                 (0x200U)
+#define LPI2C_MCFGR1_IGNACK_SHIFT                (9U)
+#define LPI2C_MCFGR1_IGNACK(x)                   (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR1_IGNACK_SHIFT)) & LPI2C_MCFGR1_IGNACK_MASK)
+#define LPI2C_MCFGR1_TIMECFG_MASK                (0x400U)
+#define LPI2C_MCFGR1_TIMECFG_SHIFT               (10U)
+#define LPI2C_MCFGR1_TIMECFG(x)                  (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR1_TIMECFG_SHIFT)) & LPI2C_MCFGR1_TIMECFG_MASK)
+#define LPI2C_MCFGR1_MATCFG_MASK                 (0x70000U)
+#define LPI2C_MCFGR1_MATCFG_SHIFT                (16U)
+#define LPI2C_MCFGR1_MATCFG(x)                   (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR1_MATCFG_SHIFT)) & LPI2C_MCFGR1_MATCFG_MASK)
+#define LPI2C_MCFGR1_PINCFG_MASK                 (0x7000000U)
+#define LPI2C_MCFGR1_PINCFG_SHIFT                (24U)
+#define LPI2C_MCFGR1_PINCFG(x)                   (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR1_PINCFG_SHIFT)) & LPI2C_MCFGR1_PINCFG_MASK)
+
+/*! @name MCFGR2 - Master Configuration Register 2 */
+#define LPI2C_MCFGR2_BUSIDLE_MASK                (0xFFFU)
+#define LPI2C_MCFGR2_BUSIDLE_SHIFT               (0U)
+#define LPI2C_MCFGR2_BUSIDLE(x)                  (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR2_BUSIDLE_SHIFT)) & LPI2C_MCFGR2_BUSIDLE_MASK)
+#define LPI2C_MCFGR2_FILTSCL_MASK                (0xF0000U)
+#define LPI2C_MCFGR2_FILTSCL_SHIFT               (16U)
+#define LPI2C_MCFGR2_FILTSCL(x)                  (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR2_FILTSCL_SHIFT)) & LPI2C_MCFGR2_FILTSCL_MASK)
+#define LPI2C_MCFGR2_FILTSDA_MASK                (0xF000000U)
+#define LPI2C_MCFGR2_FILTSDA_SHIFT               (24U)
+#define LPI2C_MCFGR2_FILTSDA(x)                  (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR2_FILTSDA_SHIFT)) & LPI2C_MCFGR2_FILTSDA_MASK)
+
+/*! @name MCFGR3 - Master Configuration Register 3 */
+#define LPI2C_MCFGR3_PINLOW_MASK                 (0xFFF00U)
+#define LPI2C_MCFGR3_PINLOW_SHIFT                (8U)
+#define LPI2C_MCFGR3_PINLOW(x)                   (((uint32_t)(((uint32_t)(x)) << LPI2C_MCFGR3_PINLOW_SHIFT)) & LPI2C_MCFGR3_PINLOW_MASK)
+
+/*! @name MDMR - Master Data Match Register */
+#define LPI2C_MDMR_MATCH0_MASK                   (0xFFU)
+#define LPI2C_MDMR_MATCH0_SHIFT                  (0U)
+#define LPI2C_MDMR_MATCH0(x)                     (((uint32_t)(((uint32_t)(x)) << LPI2C_MDMR_MATCH0_SHIFT)) & LPI2C_MDMR_MATCH0_MASK)
+#define LPI2C_MDMR_MATCH1_MASK                   (0xFF0000U)
+#define LPI2C_MDMR_MATCH1_SHIFT                  (16U)
+#define LPI2C_MDMR_MATCH1(x)                     (((uint32_t)(((uint32_t)(x)) << LPI2C_MDMR_MATCH1_SHIFT)) & LPI2C_MDMR_MATCH1_MASK)
+
+/*! @name MCCR0 - Master Clock Configuration Register 0 */
+#define LPI2C_MCCR0_CLKLO_MASK                   (0x3FU)
+#define LPI2C_MCCR0_CLKLO_SHIFT                  (0U)
+#define LPI2C_MCCR0_CLKLO(x)                     (((uint32_t)(((uint32_t)(x)) << LPI2C_MCCR0_CLKLO_SHIFT)) & LPI2C_MCCR0_CLKLO_MASK)
+#define LPI2C_MCCR0_CLKHI_MASK                   (0x3F00U)
+#define LPI2C_MCCR0_CLKHI_SHIFT                  (8U)
+#define LPI2C_MCCR0_CLKHI(x)                     (((uint32_t)(((uint32_t)(x)) << LPI2C_MCCR0_CLKHI_SHIFT)) & LPI2C_MCCR0_CLKHI_MASK)
+#define LPI2C_MCCR0_SETHOLD_MASK                 (0x3F0000U)
+#define LPI2C_MCCR0_SETHOLD_SHIFT                (16U)
+#define LPI2C_MCCR0_SETHOLD(x)                   (((uint32_t)(((uint32_t)(x)) << LPI2C_MCCR0_SETHOLD_SHIFT)) & LPI2C_MCCR0_SETHOLD_MASK)
+#define LPI2C_MCCR0_DATAVD_MASK                  (0x3F000000U)
+#define LPI2C_MCCR0_DATAVD_SHIFT                 (24U)
+#define LPI2C_MCCR0_DATAVD(x)                    (((uint32_t)(((uint32_t)(x)) << LPI2C_MCCR0_DATAVD_SHIFT)) & LPI2C_MCCR0_DATAVD_MASK)
+
+/*! @name MCCR1 - Master Clock Configuration Register 1 */
+#define LPI2C_MCCR1_CLKLO_MASK                   (0x3FU)
+#define LPI2C_MCCR1_CLKLO_SHIFT                  (0U)
+#define LPI2C_MCCR1_CLKLO(x)                     (((uint32_t)(((uint32_t)(x)) << LPI2C_MCCR1_CLKLO_SHIFT)) & LPI2C_MCCR1_CLKLO_MASK)
+#define LPI2C_MCCR1_CLKHI_MASK                   (0x3F00U)
+#define LPI2C_MCCR1_CLKHI_SHIFT                  (8U)
+#define LPI2C_MCCR1_CLKHI(x)                     (((uint32_t)(((uint32_t)(x)) << LPI2C_MCCR1_CLKHI_SHIFT)) & LPI2C_MCCR1_CLKHI_MASK)
+#define LPI2C_MCCR1_SETHOLD_MASK                 (0x3F0000U)
+#define LPI2C_MCCR1_SETHOLD_SHIFT                (16U)
+#define LPI2C_MCCR1_SETHOLD(x)                   (((uint32_t)(((uint32_t)(x)) << LPI2C_MCCR1_SETHOLD_SHIFT)) & LPI2C_MCCR1_SETHOLD_MASK)
+#define LPI2C_MCCR1_DATAVD_MASK                  (0x3F000000U)
+#define LPI2C_MCCR1_DATAVD_SHIFT                 (24U)
+#define LPI2C_MCCR1_DATAVD(x)                    (((uint32_t)(((uint32_t)(x)) << LPI2C_MCCR1_DATAVD_SHIFT)) & LPI2C_MCCR1_DATAVD_MASK)
+
+/*! @name MFCR - Master FIFO Control Register */
+#define LPI2C_MFCR_TXWATER_MASK                  (0xFFU)
+#define LPI2C_MFCR_TXWATER_SHIFT                 (0U)
+#define LPI2C_MFCR_TXWATER(x)                    (((uint32_t)(((uint32_t)(x)) << LPI2C_MFCR_TXWATER_SHIFT)) & LPI2C_MFCR_TXWATER_MASK)
+#define LPI2C_MFCR_RXWATER_MASK                  (0xFF0000U)
+#define LPI2C_MFCR_RXWATER_SHIFT                 (16U)
+#define LPI2C_MFCR_RXWATER(x)                    (((uint32_t)(((uint32_t)(x)) << LPI2C_MFCR_RXWATER_SHIFT)) & LPI2C_MFCR_RXWATER_MASK)
+
+/*! @name MFSR - Master FIFO Status Register */
+#define LPI2C_MFSR_TXCOUNT_MASK                  (0xFFU)
+#define LPI2C_MFSR_TXCOUNT_SHIFT                 (0U)
+#define LPI2C_MFSR_TXCOUNT(x)                    (((uint32_t)(((uint32_t)(x)) << LPI2C_MFSR_TXCOUNT_SHIFT)) & LPI2C_MFSR_TXCOUNT_MASK)
+#define LPI2C_MFSR_RXCOUNT_MASK                  (0xFF0000U)
+#define LPI2C_MFSR_RXCOUNT_SHIFT                 (16U)
+#define LPI2C_MFSR_RXCOUNT(x)                    (((uint32_t)(((uint32_t)(x)) << LPI2C_MFSR_RXCOUNT_SHIFT)) & LPI2C_MFSR_RXCOUNT_MASK)
+
+/*! @name MTDR - Master Transmit Data Register */
+#define LPI2C_MTDR_DATA_MASK                     (0xFFU)
+#define LPI2C_MTDR_DATA_SHIFT                    (0U)
+#define LPI2C_MTDR_DATA(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_MTDR_DATA_SHIFT)) & LPI2C_MTDR_DATA_MASK)
+#define LPI2C_MTDR_CMD_MASK                      (0x700U)
+#define LPI2C_MTDR_CMD_SHIFT                     (8U)
+#define LPI2C_MTDR_CMD(x)                        (((uint32_t)(((uint32_t)(x)) << LPI2C_MTDR_CMD_SHIFT)) & LPI2C_MTDR_CMD_MASK)
+
+/*! @name MRDR - Master Receive Data Register */
+#define LPI2C_MRDR_DATA_MASK                     (0xFFU)
+#define LPI2C_MRDR_DATA_SHIFT                    (0U)
+#define LPI2C_MRDR_DATA(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_MRDR_DATA_SHIFT)) & LPI2C_MRDR_DATA_MASK)
+#define LPI2C_MRDR_RXEMPTY_MASK                  (0x4000U)
+#define LPI2C_MRDR_RXEMPTY_SHIFT                 (14U)
+#define LPI2C_MRDR_RXEMPTY(x)                    (((uint32_t)(((uint32_t)(x)) << LPI2C_MRDR_RXEMPTY_SHIFT)) & LPI2C_MRDR_RXEMPTY_MASK)
+
+/*! @name SCR - Slave Control Register */
+#define LPI2C_SCR_SEN_MASK                       (0x1U)
+#define LPI2C_SCR_SEN_SHIFT                      (0U)
+#define LPI2C_SCR_SEN(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SCR_SEN_SHIFT)) & LPI2C_SCR_SEN_MASK)
+#define LPI2C_SCR_RST_MASK                       (0x2U)
+#define LPI2C_SCR_RST_SHIFT                      (1U)
+#define LPI2C_SCR_RST(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SCR_RST_SHIFT)) & LPI2C_SCR_RST_MASK)
+#define LPI2C_SCR_FILTEN_MASK                    (0x10U)
+#define LPI2C_SCR_FILTEN_SHIFT                   (4U)
+#define LPI2C_SCR_FILTEN(x)                      (((uint32_t)(((uint32_t)(x)) << LPI2C_SCR_FILTEN_SHIFT)) & LPI2C_SCR_FILTEN_MASK)
+#define LPI2C_SCR_FILTDZ_MASK                    (0x20U)
+#define LPI2C_SCR_FILTDZ_SHIFT                   (5U)
+#define LPI2C_SCR_FILTDZ(x)                      (((uint32_t)(((uint32_t)(x)) << LPI2C_SCR_FILTDZ_SHIFT)) & LPI2C_SCR_FILTDZ_MASK)
+#define LPI2C_SCR_RTF_MASK                       (0x100U)
+#define LPI2C_SCR_RTF_SHIFT                      (8U)
+#define LPI2C_SCR_RTF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SCR_RTF_SHIFT)) & LPI2C_SCR_RTF_MASK)
+#define LPI2C_SCR_RRF_MASK                       (0x200U)
+#define LPI2C_SCR_RRF_SHIFT                      (9U)
+#define LPI2C_SCR_RRF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SCR_RRF_SHIFT)) & LPI2C_SCR_RRF_MASK)
+
+/*! @name SSR - Slave Status Register */
+#define LPI2C_SSR_TDF_MASK                       (0x1U)
+#define LPI2C_SSR_TDF_SHIFT                      (0U)
+#define LPI2C_SSR_TDF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SSR_TDF_SHIFT)) & LPI2C_SSR_TDF_MASK)
+#define LPI2C_SSR_RDF_MASK                       (0x2U)
+#define LPI2C_SSR_RDF_SHIFT                      (1U)
+#define LPI2C_SSR_RDF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SSR_RDF_SHIFT)) & LPI2C_SSR_RDF_MASK)
+#define LPI2C_SSR_AVF_MASK                       (0x4U)
+#define LPI2C_SSR_AVF_SHIFT                      (2U)
+#define LPI2C_SSR_AVF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SSR_AVF_SHIFT)) & LPI2C_SSR_AVF_MASK)
+#define LPI2C_SSR_TAF_MASK                       (0x8U)
+#define LPI2C_SSR_TAF_SHIFT                      (3U)
+#define LPI2C_SSR_TAF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SSR_TAF_SHIFT)) & LPI2C_SSR_TAF_MASK)
+#define LPI2C_SSR_RSF_MASK                       (0x100U)
+#define LPI2C_SSR_RSF_SHIFT                      (8U)
+#define LPI2C_SSR_RSF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SSR_RSF_SHIFT)) & LPI2C_SSR_RSF_MASK)
+#define LPI2C_SSR_SDF_MASK                       (0x200U)
+#define LPI2C_SSR_SDF_SHIFT                      (9U)
+#define LPI2C_SSR_SDF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SSR_SDF_SHIFT)) & LPI2C_SSR_SDF_MASK)
+#define LPI2C_SSR_BEF_MASK                       (0x400U)
+#define LPI2C_SSR_BEF_SHIFT                      (10U)
+#define LPI2C_SSR_BEF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SSR_BEF_SHIFT)) & LPI2C_SSR_BEF_MASK)
+#define LPI2C_SSR_FEF_MASK                       (0x800U)
+#define LPI2C_SSR_FEF_SHIFT                      (11U)
+#define LPI2C_SSR_FEF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SSR_FEF_SHIFT)) & LPI2C_SSR_FEF_MASK)
+#define LPI2C_SSR_AM0F_MASK                      (0x1000U)
+#define LPI2C_SSR_AM0F_SHIFT                     (12U)
+#define LPI2C_SSR_AM0F(x)                        (((uint32_t)(((uint32_t)(x)) << LPI2C_SSR_AM0F_SHIFT)) & LPI2C_SSR_AM0F_MASK)
+#define LPI2C_SSR_AM1F_MASK                      (0x2000U)
+#define LPI2C_SSR_AM1F_SHIFT                     (13U)
+#define LPI2C_SSR_AM1F(x)                        (((uint32_t)(((uint32_t)(x)) << LPI2C_SSR_AM1F_SHIFT)) & LPI2C_SSR_AM1F_MASK)
+#define LPI2C_SSR_GCF_MASK                       (0x4000U)
+#define LPI2C_SSR_GCF_SHIFT                      (14U)
+#define LPI2C_SSR_GCF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SSR_GCF_SHIFT)) & LPI2C_SSR_GCF_MASK)
+#define LPI2C_SSR_SARF_MASK                      (0x8000U)
+#define LPI2C_SSR_SARF_SHIFT                     (15U)
+#define LPI2C_SSR_SARF(x)                        (((uint32_t)(((uint32_t)(x)) << LPI2C_SSR_SARF_SHIFT)) & LPI2C_SSR_SARF_MASK)
+#define LPI2C_SSR_SBF_MASK                       (0x1000000U)
+#define LPI2C_SSR_SBF_SHIFT                      (24U)
+#define LPI2C_SSR_SBF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SSR_SBF_SHIFT)) & LPI2C_SSR_SBF_MASK)
+#define LPI2C_SSR_BBF_MASK                       (0x2000000U)
+#define LPI2C_SSR_BBF_SHIFT                      (25U)
+#define LPI2C_SSR_BBF(x)                         (((uint32_t)(((uint32_t)(x)) << LPI2C_SSR_BBF_SHIFT)) & LPI2C_SSR_BBF_MASK)
+
+/*! @name SIER - Slave Interrupt Enable Register */
+#define LPI2C_SIER_TDIE_MASK                     (0x1U)
+#define LPI2C_SIER_TDIE_SHIFT                    (0U)
+#define LPI2C_SIER_TDIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_SIER_TDIE_SHIFT)) & LPI2C_SIER_TDIE_MASK)
+#define LPI2C_SIER_RDIE_MASK                     (0x2U)
+#define LPI2C_SIER_RDIE_SHIFT                    (1U)
+#define LPI2C_SIER_RDIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_SIER_RDIE_SHIFT)) & LPI2C_SIER_RDIE_MASK)
+#define LPI2C_SIER_AVIE_MASK                     (0x4U)
+#define LPI2C_SIER_AVIE_SHIFT                    (2U)
+#define LPI2C_SIER_AVIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_SIER_AVIE_SHIFT)) & LPI2C_SIER_AVIE_MASK)
+#define LPI2C_SIER_TAIE_MASK                     (0x8U)
+#define LPI2C_SIER_TAIE_SHIFT                    (3U)
+#define LPI2C_SIER_TAIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_SIER_TAIE_SHIFT)) & LPI2C_SIER_TAIE_MASK)
+#define LPI2C_SIER_RSIE_MASK                     (0x100U)
+#define LPI2C_SIER_RSIE_SHIFT                    (8U)
+#define LPI2C_SIER_RSIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_SIER_RSIE_SHIFT)) & LPI2C_SIER_RSIE_MASK)
+#define LPI2C_SIER_SDIE_MASK                     (0x200U)
+#define LPI2C_SIER_SDIE_SHIFT                    (9U)
+#define LPI2C_SIER_SDIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_SIER_SDIE_SHIFT)) & LPI2C_SIER_SDIE_MASK)
+#define LPI2C_SIER_BEIE_MASK                     (0x400U)
+#define LPI2C_SIER_BEIE_SHIFT                    (10U)
+#define LPI2C_SIER_BEIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_SIER_BEIE_SHIFT)) & LPI2C_SIER_BEIE_MASK)
+#define LPI2C_SIER_FEIE_MASK                     (0x800U)
+#define LPI2C_SIER_FEIE_SHIFT                    (11U)
+#define LPI2C_SIER_FEIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_SIER_FEIE_SHIFT)) & LPI2C_SIER_FEIE_MASK)
+#define LPI2C_SIER_AM0IE_MASK                    (0x1000U)
+#define LPI2C_SIER_AM0IE_SHIFT                   (12U)
+#define LPI2C_SIER_AM0IE(x)                      (((uint32_t)(((uint32_t)(x)) << LPI2C_SIER_AM0IE_SHIFT)) & LPI2C_SIER_AM0IE_MASK)
+#define LPI2C_SIER_AM1F_MASK                     (0x2000U)
+#define LPI2C_SIER_AM1F_SHIFT                    (13U)
+#define LPI2C_SIER_AM1F(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_SIER_AM1F_SHIFT)) & LPI2C_SIER_AM1F_MASK)
+#define LPI2C_SIER_GCIE_MASK                     (0x4000U)
+#define LPI2C_SIER_GCIE_SHIFT                    (14U)
+#define LPI2C_SIER_GCIE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_SIER_GCIE_SHIFT)) & LPI2C_SIER_GCIE_MASK)
+#define LPI2C_SIER_SARIE_MASK                    (0x8000U)
+#define LPI2C_SIER_SARIE_SHIFT                   (15U)
+#define LPI2C_SIER_SARIE(x)                      (((uint32_t)(((uint32_t)(x)) << LPI2C_SIER_SARIE_SHIFT)) & LPI2C_SIER_SARIE_MASK)
+
+/*! @name SDER - Slave DMA Enable Register */
+#define LPI2C_SDER_TDDE_MASK                     (0x1U)
+#define LPI2C_SDER_TDDE_SHIFT                    (0U)
+#define LPI2C_SDER_TDDE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_SDER_TDDE_SHIFT)) & LPI2C_SDER_TDDE_MASK)
+#define LPI2C_SDER_RDDE_MASK                     (0x2U)
+#define LPI2C_SDER_RDDE_SHIFT                    (1U)
+#define LPI2C_SDER_RDDE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_SDER_RDDE_SHIFT)) & LPI2C_SDER_RDDE_MASK)
+#define LPI2C_SDER_AVDE_MASK                     (0x4U)
+#define LPI2C_SDER_AVDE_SHIFT                    (2U)
+#define LPI2C_SDER_AVDE(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_SDER_AVDE_SHIFT)) & LPI2C_SDER_AVDE_MASK)
+
+/*! @name SCFGR1 - Slave Configuration Register 1 */
+#define LPI2C_SCFGR1_ADRSTALL_MASK               (0x1U)
+#define LPI2C_SCFGR1_ADRSTALL_SHIFT              (0U)
+#define LPI2C_SCFGR1_ADRSTALL(x)                 (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR1_ADRSTALL_SHIFT)) & LPI2C_SCFGR1_ADRSTALL_MASK)
+#define LPI2C_SCFGR1_RXSTALL_MASK                (0x2U)
+#define LPI2C_SCFGR1_RXSTALL_SHIFT               (1U)
+#define LPI2C_SCFGR1_RXSTALL(x)                  (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR1_RXSTALL_SHIFT)) & LPI2C_SCFGR1_RXSTALL_MASK)
+#define LPI2C_SCFGR1_TXDSTALL_MASK               (0x4U)
+#define LPI2C_SCFGR1_TXDSTALL_SHIFT              (2U)
+#define LPI2C_SCFGR1_TXDSTALL(x)                 (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR1_TXDSTALL_SHIFT)) & LPI2C_SCFGR1_TXDSTALL_MASK)
+#define LPI2C_SCFGR1_ACKSTALL_MASK               (0x8U)
+#define LPI2C_SCFGR1_ACKSTALL_SHIFT              (3U)
+#define LPI2C_SCFGR1_ACKSTALL(x)                 (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR1_ACKSTALL_SHIFT)) & LPI2C_SCFGR1_ACKSTALL_MASK)
+#define LPI2C_SCFGR1_GCEN_MASK                   (0x100U)
+#define LPI2C_SCFGR1_GCEN_SHIFT                  (8U)
+#define LPI2C_SCFGR1_GCEN(x)                     (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR1_GCEN_SHIFT)) & LPI2C_SCFGR1_GCEN_MASK)
+#define LPI2C_SCFGR1_SAEN_MASK                   (0x200U)
+#define LPI2C_SCFGR1_SAEN_SHIFT                  (9U)
+#define LPI2C_SCFGR1_SAEN(x)                     (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR1_SAEN_SHIFT)) & LPI2C_SCFGR1_SAEN_MASK)
+#define LPI2C_SCFGR1_TXCFG_MASK                  (0x400U)
+#define LPI2C_SCFGR1_TXCFG_SHIFT                 (10U)
+#define LPI2C_SCFGR1_TXCFG(x)                    (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR1_TXCFG_SHIFT)) & LPI2C_SCFGR1_TXCFG_MASK)
+#define LPI2C_SCFGR1_RXCFG_MASK                  (0x800U)
+#define LPI2C_SCFGR1_RXCFG_SHIFT                 (11U)
+#define LPI2C_SCFGR1_RXCFG(x)                    (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR1_RXCFG_SHIFT)) & LPI2C_SCFGR1_RXCFG_MASK)
+#define LPI2C_SCFGR1_IGNACK_MASK                 (0x1000U)
+#define LPI2C_SCFGR1_IGNACK_SHIFT                (12U)
+#define LPI2C_SCFGR1_IGNACK(x)                   (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR1_IGNACK_SHIFT)) & LPI2C_SCFGR1_IGNACK_MASK)
+#define LPI2C_SCFGR1_HSMEN_MASK                  (0x2000U)
+#define LPI2C_SCFGR1_HSMEN_SHIFT                 (13U)
+#define LPI2C_SCFGR1_HSMEN(x)                    (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR1_HSMEN_SHIFT)) & LPI2C_SCFGR1_HSMEN_MASK)
+#define LPI2C_SCFGR1_ADDRCFG_MASK                (0x70000U)
+#define LPI2C_SCFGR1_ADDRCFG_SHIFT               (16U)
+#define LPI2C_SCFGR1_ADDRCFG(x)                  (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR1_ADDRCFG_SHIFT)) & LPI2C_SCFGR1_ADDRCFG_MASK)
+
+/*! @name SCFGR2 - Slave Configuration Register 2 */
+#define LPI2C_SCFGR2_CLKHOLD_MASK                (0xFU)
+#define LPI2C_SCFGR2_CLKHOLD_SHIFT               (0U)
+#define LPI2C_SCFGR2_CLKHOLD(x)                  (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR2_CLKHOLD_SHIFT)) & LPI2C_SCFGR2_CLKHOLD_MASK)
+#define LPI2C_SCFGR2_DATAVD_MASK                 (0x3F00U)
+#define LPI2C_SCFGR2_DATAVD_SHIFT                (8U)
+#define LPI2C_SCFGR2_DATAVD(x)                   (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR2_DATAVD_SHIFT)) & LPI2C_SCFGR2_DATAVD_MASK)
+#define LPI2C_SCFGR2_FILTSCL_MASK                (0xF0000U)
+#define LPI2C_SCFGR2_FILTSCL_SHIFT               (16U)
+#define LPI2C_SCFGR2_FILTSCL(x)                  (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR2_FILTSCL_SHIFT)) & LPI2C_SCFGR2_FILTSCL_MASK)
+#define LPI2C_SCFGR2_FILTSDA_MASK                (0xF000000U)
+#define LPI2C_SCFGR2_FILTSDA_SHIFT               (24U)
+#define LPI2C_SCFGR2_FILTSDA(x)                  (((uint32_t)(((uint32_t)(x)) << LPI2C_SCFGR2_FILTSDA_SHIFT)) & LPI2C_SCFGR2_FILTSDA_MASK)
+
+/*! @name SAMR - Slave Address Match Register */
+#define LPI2C_SAMR_ADDR0_MASK                    (0x7FEU)
+#define LPI2C_SAMR_ADDR0_SHIFT                   (1U)
+#define LPI2C_SAMR_ADDR0(x)                      (((uint32_t)(((uint32_t)(x)) << LPI2C_SAMR_ADDR0_SHIFT)) & LPI2C_SAMR_ADDR0_MASK)
+#define LPI2C_SAMR_ADDR1_MASK                    (0x7FE0000U)
+#define LPI2C_SAMR_ADDR1_SHIFT                   (17U)
+#define LPI2C_SAMR_ADDR1(x)                      (((uint32_t)(((uint32_t)(x)) << LPI2C_SAMR_ADDR1_SHIFT)) & LPI2C_SAMR_ADDR1_MASK)
+
+/*! @name SASR - Slave Address Status Register */
+#define LPI2C_SASR_RADDR_MASK                    (0x7FFU)
+#define LPI2C_SASR_RADDR_SHIFT                   (0U)
+#define LPI2C_SASR_RADDR(x)                      (((uint32_t)(((uint32_t)(x)) << LPI2C_SASR_RADDR_SHIFT)) & LPI2C_SASR_RADDR_MASK)
+#define LPI2C_SASR_ANV_MASK                      (0x4000U)
+#define LPI2C_SASR_ANV_SHIFT                     (14U)
+#define LPI2C_SASR_ANV(x)                        (((uint32_t)(((uint32_t)(x)) << LPI2C_SASR_ANV_SHIFT)) & LPI2C_SASR_ANV_MASK)
+
+/*! @name STAR - Slave Transmit ACK Register */
+#define LPI2C_STAR_TXNACK_MASK                   (0x1U)
+#define LPI2C_STAR_TXNACK_SHIFT                  (0U)
+#define LPI2C_STAR_TXNACK(x)                     (((uint32_t)(((uint32_t)(x)) << LPI2C_STAR_TXNACK_SHIFT)) & LPI2C_STAR_TXNACK_MASK)
+
+/*! @name STDR - Slave Transmit Data Register */
+#define LPI2C_STDR_DATA_MASK                     (0xFFU)
+#define LPI2C_STDR_DATA_SHIFT                    (0U)
+#define LPI2C_STDR_DATA(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_STDR_DATA_SHIFT)) & LPI2C_STDR_DATA_MASK)
+
+/*! @name SRDR - Slave Receive Data Register */
+#define LPI2C_SRDR_DATA_MASK                     (0xFFU)
+#define LPI2C_SRDR_DATA_SHIFT                    (0U)
+#define LPI2C_SRDR_DATA(x)                       (((uint32_t)(((uint32_t)(x)) << LPI2C_SRDR_DATA_SHIFT)) & LPI2C_SRDR_DATA_MASK)
+#define LPI2C_SRDR_RXEMPTY_MASK                  (0x4000U)
+#define LPI2C_SRDR_RXEMPTY_SHIFT                 (14U)
+#define LPI2C_SRDR_RXEMPTY(x)                    (((uint32_t)(((uint32_t)(x)) << LPI2C_SRDR_RXEMPTY_SHIFT)) & LPI2C_SRDR_RXEMPTY_MASK)
+#define LPI2C_SRDR_SOF_MASK                      (0x8000U)
+#define LPI2C_SRDR_SOF_SHIFT                     (15U)
+#define LPI2C_SRDR_SOF(x)                        (((uint32_t)(((uint32_t)(x)) << LPI2C_SRDR_SOF_SHIFT)) & LPI2C_SRDR_SOF_MASK)
+
+#endif /* __ASM_ARCH_IMX_I2C_H__ */

drivers/i2c/Kconfig

@@ -109,6 +109,12 @@ config SYS_I2C_INTEL
 	  the I2C API meaning that any I2C operations will immediately fail
 	  for now.
 
+config SYS_I2C_IMX_LPI2C
+	bool "NXP i.MX LPI2C driver"
+	depends on ARCH_MX7ULP
+	help
+	  Add support for the NXP i.MX LPI2C driver.
+
 config SYS_I2C_MXC
 	bool "NXP i.MX I2C driver"
 	depends on MX6

drivers/i2c/Makefile

@@ -24,6 +24,7 @@ obj-$(CONFIG_SYS_I2C_FSL) += fsl_i2c.o
 obj-$(CONFIG_SYS_I2C_FTI2C010) += fti2c010.o
 obj-$(CONFIG_SYS_I2C_IHS) += ihs_i2c.o
 obj-$(CONFIG_SYS_I2C_INTEL) += intel_i2c.o
+obj-$(CONFIG_SYS_I2C_IMX_LPI2C) += imx_lpi2c.o
 obj-$(CONFIG_SYS_I2C_KONA) += kona_i2c.o
 obj-$(CONFIG_SYS_I2C_LPC32XX) += lpc32xx_i2c.o
 obj-$(CONFIG_SYS_I2C_MVTWSI) += mvtwsi.o

drivers/i2c/imx_lpi2c.c

+/*
+ * Copyright 2016 Freescale Semiconductors, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/imx_lpi2c.h>
+#include <asm/arch/sys_proto.h>
+#include <dm.h>
+#include <fdtdec.h>
+#include <i2c.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+#define LPI2C_FIFO_SIZE 4
+#define LPI2C_TIMEOUT_MS 100
+
+/* Weak linked function for overridden by some SoC power function */
+int __weak init_i2c_power(unsigned i2c_num)
+{
+	return 0;
+}
+
+static int imx_lpci2c_check_busy_bus(struct udevice *bus)
+{
+	struct imx_lpi2c_reg *regs = (struct imx_lpi2c_reg *)dev_get_addr(bus);
+	lpi2c_status_t result = LPI2C_SUCESS;
+	u32 status;
+
+	status = readl(&regs->msr);
+
+	if ((status & LPI2C_MSR_BBF_MASK) && !(status & LPI2C_MSR_MBF_MASK))
+		result = LPI2C_BUSY;
+
+	return result;
+}
+
+static int imx_lpci2c_check_clear_error(struct udevice *bus)
+{
+	struct imx_lpi2c_reg *regs = (struct imx_lpi2c_reg *)dev_get_addr(bus);
+	lpi2c_status_t result = LPI2C_SUCESS;
+	u32 val, status;
+
+	status = readl(&regs->msr);
+	/* errors to check for */
+	status &= LPI2C_MSR_NDF_MASK | LPI2C_MSR_ALF_MASK |
+		LPI2C_MSR_FEF_MASK | LPI2C_MSR_PLTF_MASK;
+
+	if (status) {
+		if (status & LPI2C_MSR_PLTF_MASK)
+			result = LPI2C_PIN_LOW_TIMEOUT_ERR;
+		else if (status & LPI2C_MSR_ALF_MASK)
+			result = LPI2C_ARB_LOST_ERR;
+		else if (status & LPI2C_MSR_NDF_MASK)
+			result = LPI2C_NAK_ERR;
+		else if (status & LPI2C_MSR_FEF_MASK)
+			result = LPI2C_FIFO_ERR;
+
+		/* clear status flags */
+		writel(0x7f00, &regs->msr);
+		/* reset fifos */
+		val = readl(&regs->mcr);
+		val |= LPI2C_MCR_RRF_MASK | LPI2C_MCR_RTF_MASK;
+		writel(val, &regs->mcr);
+	}
+
+	return result;
+}
+
+static int bus_i2c_wait_for_tx_ready(struct udevice *bus)
+{
+	struct imx_lpi2c_reg *regs = (struct imx_lpi2c_reg *)dev_get_addr(bus);
+	lpi2c_status_t result = LPI2C_SUCESS;
+	u32 txcount = 0;
+	ulong start_time = get_timer(0);
+
+	do {
+		txcount = LPI2C_MFSR_TXCOUNT(readl(&regs->mfsr));
+		txcount = LPI2C_FIFO_SIZE - txcount;
+		result = imx_lpci2c_check_clear_error(bus);
+		if (result) {
+			debug("i2c: wait for tx ready: result 0x%x\n", result);
+			return result;
+		}
+		if (get_timer(start_time) > LPI2C_TIMEOUT_MS) {
+			debug("i2c: wait for tx ready: timeout\n");
+			return -1;
+		}
+	} while (!txcount);
+
+	return result;
+}
+
+static int bus_i2c_send(struct udevice *bus, u8 *txbuf, int len)
+{
+	struct imx_lpi2c_reg *regs = (struct imx_lpi2c_reg *)dev_get_addr(bus);
+	lpi2c_status_t result = LPI2C_SUCESS;
+
+	/* empty tx */
+	if (!len)
+		return result;
+
+	while (len--) {
+		result = bus_i2c_wait_for_tx_ready(bus);
+		if (result) {
+			debug("i2c: send wait fot tx ready: %d\n", result);
+			return result;
+		}
+		writel(*txbuf++, &regs->mtdr);
+	}
+
+	return result;
+}
+
+static int bus_i2c_receive(struct udevice *bus, u8 *rxbuf, int len)
+{
+	struct imx_lpi2c_reg *regs = (struct imx_lpi2c_reg *)dev_get_addr(bus);
+	lpi2c_status_t result = LPI2C_SUCESS;
+	u32 val;
+	ulong start_time = get_timer(0);
+
+	/* empty read */
+	if (!len)
+		return result;
+
+	result = bus_i2c_wait_for_tx_ready(bus);
+	if (result) {
+		debug("i2c: receive wait fot tx ready: %d\n", result);
+		return result;
+	}
+
+	/* clear all status flags */
+	writel(0x7f00, &regs->msr);
+	/* send receive command */
+	val = LPI2C_MTDR_CMD(0x1) | LPI2C_MTDR_DATA(len - 1);
+	writel(val, &regs->mtdr);
+
+	while (len--) {
+		do {
+			result = imx_lpci2c_check_clear_error(bus);
+			if (result) {
+				debug("i2c: receive check clear error: %d\n", result);
+				return result;
+			}
+			if (get_timer(start_time) > LPI2C_TIMEOUT_MS) {
+				debug("i2c: receive mrdr: timeout\n");
+				return -1;
+			}
+			val = readl(&regs->mrdr);
+		} while (val & LPI2C_MRDR_RXEMPTY_MASK);
+		*rxbuf++ = LPI2C_MRDR_DATA(val);
+	}
+
+	return result;
+}
+
+static int bus_i2c_start(struct udevice *bus, u8 addr, u8 dir)
+{
+	struct imx_lpi2c_reg *regs = (struct imx_lpi2c_reg *)dev_get_addr(bus);
+	lpi2c_status_t result = LPI2C_SUCESS;
+	u32 val;
+
+	result = imx_lpci2c_check_busy_bus(bus);
+	if (result) {
+		debug("i2c: start check busy bus: 0x%x\n", result);
+		return result;
+	}
+	/* clear all status flags */
+	writel(0x7f00, &regs->msr);
+	/* turn off auto-stop condition */
+	val = readl(&regs->mcfgr1) & ~LPI2C_MCFGR1_AUTOSTOP_MASK;
+	writel(val, &regs->mcfgr1);
+	/* wait tx fifo ready */
+	result = bus_i2c_wait_for_tx_ready(bus);
+	if (result) {
+		debug("i2c: start wait for tx ready: 0x%x\n", result);
+		return result;
+	}
+	/* issue start command */
+	val = LPI2C_MTDR_CMD(0x4) | (addr << 0x1) | dir;
+	writel(val, &regs->mtdr);
+
+	return result;
+}
+static int bus_i2c_stop(struct udevice *bus)
+{
+	struct imx_lpi2c_reg *regs = (struct imx_lpi2c_reg *)dev_get_addr(bus);
+	lpi2c_status_t result = LPI2C_SUCESS;
+	u32 status;
+
+	result = bus_i2c_wait_for_tx_ready(bus);
+	if (result) {
+		debug("i2c: stop wait for tx ready: 0x%x\n", result);
+		return result;
+	}
+
+	/* send stop command */
+	writel(LPI2C_MTDR_CMD(0x2), &regs->mtdr);
+
+	while (result == LPI2C_SUCESS) {
+		status = readl(&regs->msr);
+		result = imx_lpci2c_check_clear_error(bus);
+		/* stop detect flag */
+		if (status & LPI2C_MSR_SDF_MASK) {
+			/* clear stop flag */
+			status &= LPI2C_MSR_SDF_MASK;
+			writel(status, &regs->msr);
+			break;
+		}
+	}
+
+	return result;
+}
+
+static int bus_i2c_read(struct udevice *bus, u32 chip, u8 *buf, int len)
+{
+	lpi2c_status_t result = LPI2C_SUCESS;
+
+	result = bus_i2c_start(bus, chip, 1);
+	if (result)
+		return result;
+	result = bus_i2c_receive(bus, buf, len);
+	if (result)
+		return result;
+	result = bus_i2c_stop(bus);
+	if (result)
+		return result;
+
+	return result;
+}
+
+static int bus_i2c_write(struct udevice *bus, u32 chip, u8 *buf, int len)
+{
+	lpi2c_status_t result = LPI2C_SUCESS;
+
+	result = bus_i2c_start(bus, chip, 0);
+	if (result)
+		return result;
+	result = bus_i2c_send(bus, buf, len);
+	if (result)
+		return result;
+	result = bus_i2c_stop(bus);
+	if (result)
+		return result;
+
+	return result;
+}
+
+
+static int bus_i2c_set_bus_speed(struct udevice *bus, int speed)
+{
+	struct imx_lpi2c_reg *regs = (struct imx_lpi2c_reg *)dev_get_addr(bus);
+	u32 val;
+	u32 preescale = 0, best_pre = 0, clkhi = 0;
+	u32 best_clkhi = 0, abs_error = 0, rate;
+	u32 error = 0xffffffff;
+	u32 clock_rate;
+	bool mode;
+	int i;
+
+	clock_rate = imx_get_i2cclk(bus->seq + 4);
+	if (!clock_rate)
+		return -EPERM;
+
+	mode = (readl(&regs->mcr) & LPI2C_MCR_MEN_MASK) >> LPI2C_MCR_MEN_SHIFT;
+	/* disable master mode */
+	val = readl(&regs->mcr) & ~LPI2C_MCR_MEN_MASK;
+	writel(val | LPI2C_MCR_MEN(0), &regs->mcr);
+
+	for (preescale = 1; (preescale <= 128) &&
+		(error != 0); preescale = 2 * preescale) {
+		for (clkhi = 1; clkhi < 32; clkhi++) {
+			if (clkhi == 1)
+				rate = (clock_rate / preescale) / (1 + 3 + 2 + 2 / preescale);
+			else
+				rate = (clock_rate / preescale / (3 * clkhi + 2 + 2 / preescale));
+
+			abs_error = speed > rate ? speed - rate : rate - speed;
+
+			if (abs_error < error) {
+				best_pre = preescale;
+				best_clkhi = clkhi;
+				error = abs_error;
+				if (abs_error == 0)
+					break;
+			}
+		}
+	}
+
+	/* Standard, fast, fast mode plus and ultra-fast transfers. */
+	val = LPI2C_MCCR0_CLKHI(best_clkhi);
+	if (best_clkhi < 2)
+		val |= LPI2C_MCCR0_CLKLO(3) | LPI2C_MCCR0_SETHOLD(2) | LPI2C_MCCR0_DATAVD(1);
+	else
+		val |= LPI2C_MCCR0_CLKLO(2 * best_clkhi) | LPI2C_MCCR0_SETHOLD(best_clkhi) |
+			LPI2C_MCCR0_DATAVD(best_clkhi / 2);
+	writel(val, &regs->mccr0);
+
+	for (i = 0; i < 8; i++) {
+		if (best_pre == (1 << i)) {
+			best_pre = i;
+			break;
+		}
+	}
+
+	val = readl(&regs->mcfgr1) & ~LPI2C_MCFGR1_PRESCALE_MASK;
+	writel(val | LPI2C_MCFGR1_PRESCALE(best_pre), &regs->mcfgr1);
+
+	if (mode) {
+		val = readl(&regs->mcr) & ~LPI2C_MCR_MEN_MASK;
+		writel(val | LPI2C_MCR_MEN(1), &regs->mcr);
+	}
+
+	return 0;
+}
+
+static int bus_i2c_init(struct udevice *bus, int speed)
+{
+	struct imx_lpi2c_reg *regs = (struct imx_lpi2c_reg *)dev_get_addr(bus);
+	u32 val;
+	int ret;
+
+	/* reset peripheral */
+	writel(LPI2C_MCR_RST_MASK, &regs->mcr);
+	writel(0x0, &regs->mcr);
+	/* Disable Dozen mode */
+	writel(LPI2C_MCR_DBGEN(0) | LPI2C_MCR_DOZEN(1), &regs->mcr);
+	/* host request disable, active high, external pin */
+	val = readl(&regs->mcfgr0);
+	val &= (~(LPI2C_MCFGR0_HREN_MASK | LPI2C_MCFGR0_HRPOL_MASK |
+				LPI2C_MCFGR0_HRSEL_MASK));
+	val |= LPI2C_MCFGR0_HRPOL(0x1);
+	writel(val, &regs->mcfgr0);
+	/* pincfg and ignore ack */
+	val = readl(&regs->mcfgr1);
+	val &= ~(LPI2C_MCFGR1_PINCFG_MASK | LPI2C_MCFGR1_IGNACK_MASK);
+	val |= LPI2C_MCFGR1_PINCFG(0x0); /* 2 pin open drain */
+	val |= LPI2C_MCFGR1_IGNACK(0x0); /* ignore nack */
+	writel(val, &regs->mcfgr1);
+
+	ret = bus_i2c_set_bus_speed(bus, speed);
+
+	/* enable lpi2c in master mode */
+	val = readl(&regs->mcr) & ~LPI2C_MCR_MEN_MASK;
+	writel(val | LPI2C_MCR_MEN(1), &regs->mcr);
+
+	debug("i2c : controller bus %d, speed %d:\n", bus->seq, speed);
+
+	return ret;
+}
+
+static int imx_lpi2c_probe_chip(struct udevice *bus, u32 chip,
+				u32 chip_flags)
+{
+	lpi2c_status_t result = LPI2C_SUCESS;
+
+	result = bus_i2c_start(bus, chip, 0);
+	if (result) {
+		bus_i2c_stop(bus);
+		bus_i2c_init(bus, 100000);
+		return result;
+	}
+
+	result = bus_i2c_stop(bus);
+	if (result) {
+		bus_i2c_init(bus, 100000);
+		return -result;
+	}
+
+	return result;
+}
+
+static int imx_lpi2c_xfer(struct udevice *bus, struct i2c_msg *msg, int nmsgs)
+{
+	int ret = 0;
+
+	for (; nmsgs > 0; nmsgs--, msg++) {
+		debug("i2c_xfer: chip=0x%x, len=0x%x\n", msg->addr, msg->len);
+		if (msg->flags & I2C_M_RD)
+			ret = bus_i2c_read(bus, msg->addr, msg->buf,
+					   msg->len);
+		else {
+			ret = bus_i2c_write(bus, msg->addr, msg->buf,
+					    msg->len);
+			if (ret)
+				break;
+		}
+	}
+
+	if (ret)
+		debug("i2c_write: error sending\n");
+
+	return ret;
+}
+
+static int imx_lpi2c_set_bus_speed(struct udevice *bus, unsigned int speed)
+{
+	return bus_i2c_set_bus_speed(bus, speed);
+}
+
+static int imx_lpi2c_probe(struct udevice *bus)
+{
+	struct imx_lpi2c_bus *i2c_bus = dev_get_priv(bus);
+	fdt_addr_t addr;
+	int ret;
+
+	i2c_bus->driver_data = dev_get_driver_data(bus);
+
+	addr = dev_get_addr(bus);
+	if (addr == FDT_ADDR_T_NONE)
+		return -ENODEV;
+
+	i2c_bus->base = addr;
+	i2c_bus->index = bus->seq;
+	i2c_bus->bus = bus;
+
+	/* power up i2c resource */
+	ret = init_i2c_power(bus->seq + 4);
+	if (ret) {
+		debug("init_i2c_power err = %d\n", ret);
+		return ret;
+	}
+
+	/* Enable clk, only i2c4-7 can be handled by A7 core */
+	ret = enable_i2c_clk(1, bus->seq + 4);
+	if (ret < 0)
+		return ret;
+
+	ret = bus_i2c_init(bus, 100000);
+	if (ret < 0)
+		return ret;
+
+	debug("i2c : controller bus %d at %lu , speed %d: ",
+	      bus->seq, i2c_bus->base,
+	      i2c_bus->speed);
+
+	return 0;
+}
+
+static const struct dm_i2c_ops imx_lpi2c_ops = {
+	.xfer		= imx_lpi2c_xfer,
+	.probe_chip	= imx_lpi2c_probe_chip,
+	.set_bus_speed	= imx_lpi2c_set_bus_speed,
+};
+
+static const struct udevice_id imx_lpi2c_ids[] = {
+	{ .compatible = "fsl,imx7ulp-lpi2c", },
+	{}
+};
+
+U_BOOT_DRIVER(imx_lpi2c) = {
+	.name = "imx_lpi2c",
+	.id = UCLASS_I2C,
+	.of_match = imx_lpi2c_ids,
+	.probe = imx_lpi2c_probe,
+	.priv_auto_alloc_size = sizeof(struct imx_lpi2c_bus),
+	.ops = &imx_lpi2c_ops,
+};