Re: [U-Boot] [PATCH V4 12/19] i2c: lpi2c: add lpi2c driver for i.MX7ULP
On 24/02/2017 04:56, Peng Fan wrote: > 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 > Acked-by: Heiko Schocher > Cc: Stefano Babic > --- > Fine with me - I have integrate your patches in my own tree (not yet pushed). I will check Jagan's before sending my PR to Tom. Regards, Stefano -- Meet DENX at the Embedded World Trade Show 14 Mar - 16 Mar 2017, Nuremberg Trade Fair Centre, Hall 4, Booth 581 -- = DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sba...@denx.de = ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
[U-Boot] [PATCH V4 12/19] 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 Acked-by: Heiko Schocher Cc: Stefano Babic --- I do not repost the whole patch set, only post the single lpi2c patch in V4. Other patches are still valid in V3. V4: Use SYS_I2C_IMX_LPI2C as the Kconfig entry Add Ack tag V3: none V2: none arch/arm/include/asm/arch-mx7ulp/imx_lpi2c.h | 520 +++ drivers/i2c/Kconfig | 6 + drivers/i2c/Makefile | 1 + drivers/i2c/imx_lpi2c.c | 462 4 files changed, 989 insertions(+) create mode 100644 arch/arm/include/asm/arch-mx7ulp/imx_lpi2c.h create mode 100644 drivers/i2c/imx_lpi2c.c diff --git a/arch/arm/include/asm/arch-mx7ulp/imx_lpi2c.h b/arch/arm/include/asm/arch-mx7ulp/imx_lpi2c.h new file mode 100644 index 000..f1b3113 --- /dev/null +++ b/arch/arm/include/asm/arch-mx7ulp/imx_lpi2c.h @@ -0,0 +1,520 @@ +/* + * 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 (0xU) +#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 (0xFFU) +#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 (0xFF00U) +#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) (((
[U-Boot] [PATCH V4 12/19] 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 Acked-by: Heiko Schocher Cc: Stefano Babic --- I do not repost the whole patch set, only post the single lpi2c patch in V4. Other patches are still valid in V3. V4: Use SYS_I2C_IMX_LPI2C as the Kconfig entry Add Ack tag V3: none V2: none arch/arm/include/asm/arch-mx7ulp/imx_lpi2c.h | 520 +++ drivers/i2c/Kconfig | 6 + drivers/i2c/Makefile | 1 + drivers/i2c/imx_lpi2c.c | 462 4 files changed, 989 insertions(+) create mode 100644 arch/arm/include/asm/arch-mx7ulp/imx_lpi2c.h create mode 100644 drivers/i2c/imx_lpi2c.c diff --git a/arch/arm/include/asm/arch-mx7ulp/imx_lpi2c.h b/arch/arm/include/asm/arch-mx7ulp/imx_lpi2c.h new file mode 100644 index 000..f1b3113 --- /dev/null +++ b/arch/arm/include/asm/arch-mx7ulp/imx_lpi2c.h @@ -0,0 +1,520 @@ +/* + * 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 (0xU) +#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 (0xFFU) +#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 (0xFF00U) +#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) (((