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spi: imx: Define register bits in the driver

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The CSPI/ECSPI register bits do not differ between newer SoCs, instead
of having multiple copies of the same thing for each iMX SoC, define
the bits in the driver.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Marek Vasut 2021-01-19 00:58:32 +01:00 • committed by Stefano Babic
parent 85b1c11989
commit 6cd4f48b64
7 changed files with 76 additions and 200 deletions
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30
arch/arm/include/asm/arch-mx25/imx-regs.h
View file

@ -269,18 +269,6 @@ struct epit_regs {
u32 cnr; /* Counter register */
};
/* CSPI registers */
struct cspi_regs {
u32 rxdata;
u32 txdata;
u32 ctrl;
u32 intr;
u32 dma;
u32 stat;
u32 period;
u32 test;
};
#endif
#define ARCH_MXC
@ -508,24 +496,6 @@ struct cspi_regs {
/*
* CSPI register definitions
*/
#define MXC_CSPI
#define MXC_CSPICTRL_EN (1 << 0)
#define MXC_CSPICTRL_MODE (1 << 1)
#define MXC_CSPICTRL_XCH (1 << 2)
#define MXC_CSPICTRL_SMC (1 << 3)
#define MXC_CSPICTRL_POL (1 << 4)
#define MXC_CSPICTRL_PHA (1 << 5)
#define MXC_CSPICTRL_SSCTL (1 << 6)
#define MXC_CSPICTRL_SSPOL (1 << 7)
#define MXC_CSPICTRL_CHIPSELECT(x) (((x) & 0x3) << 12)
#define MXC_CSPICTRL_BITCOUNT(x) (((x) & 0xfff) << 20)
#define MXC_CSPICTRL_DATARATE(x) (((x) & 0x7) << 16)
#define MXC_CSPICTRL_TC (1 << 7)
#define MXC_CSPICTRL_RXOVF (1 << 6)
#define MXC_CSPICTRL_MAXBITS 0xfff
#define MXC_CSPIPERIOD_32KHZ (1 << 15)
#define MAX_SPI_BYTES 4
#define MXC_SPI_BASE_ADDRESSES \
IMX_CSPI1_BASE, \
IMX_CSPI2_BASE, \

31
arch/arm/include/asm/arch-mx31/imx-regs.h
View file

@ -39,17 +39,6 @@ struct clock_control_regs {
u32 pdr2;
};
struct cspi_regs {
u32 rxdata;
u32 txdata;
u32 ctrl;
u32 intr;
u32 dma;
u32 stat;
u32 period;
u32 test;
};
/* IIM control registers */
struct iim_regs {
u32 iim_stat;
@ -889,26 +878,6 @@ struct esdc_regs {
/*
* CSPI register definitions
*/
#define MXC_CSPI
#define MXC_CSPICTRL_EN (1 << 0)
#define MXC_CSPICTRL_MODE (1 << 1)
#define MXC_CSPICTRL_XCH (1 << 2)
#define MXC_CSPICTRL_SMC (1 << 3)
#define MXC_CSPICTRL_POL (1 << 4)
#define MXC_CSPICTRL_PHA (1 << 5)
#define MXC_CSPICTRL_SSCTL (1 << 6)
#define MXC_CSPICTRL_SSPOL (1 << 7)
#define MXC_CSPICTRL_CHIPSELECT(x) (((x) & 0x3) << 24)
#define MXC_CSPICTRL_BITCOUNT(x) (((x) & 0x1f) << 8)
#define MXC_CSPICTRL_DATARATE(x) (((x) & 0x7) << 16)
#define MXC_CSPICTRL_TC (1 << 8)
#define MXC_CSPICTRL_RXOVF (1 << 6)
#define MXC_CSPICTRL_MAXBITS 0x1f
#define MXC_CSPIPERIOD_32KHZ (1 << 15)
#define MAX_SPI_BYTES 4
#define MXC_SPI_BASE_ADDRESSES \
0x43fa4000, \
0x50010000, \

30
arch/arm/include/asm/arch-mx35/imx-regs.h
View file

@ -170,24 +170,6 @@
/*
* CSPI register definitions
*/
#define MXC_CSPI
#define MXC_CSPICTRL_EN (1 << 0)
#define MXC_CSPICTRL_MODE (1 << 1)
#define MXC_CSPICTRL_XCH (1 << 2)
#define MXC_CSPICTRL_SMC (1 << 3)
#define MXC_CSPICTRL_POL (1 << 4)
#define MXC_CSPICTRL_PHA (1 << 5)
#define MXC_CSPICTRL_SSCTL (1 << 6)
#define MXC_CSPICTRL_SSPOL (1 << 7)
#define MXC_CSPICTRL_CHIPSELECT(x) (((x) & 0x3) << 12)
#define MXC_CSPICTRL_BITCOUNT(x) (((x) & 0xfff) << 20)
#define MXC_CSPICTRL_DATARATE(x) (((x) & 0x7) << 16)
#define MXC_CSPICTRL_TC (1 << 7)
#define MXC_CSPICTRL_RXOVF (1 << 6)
#define MXC_CSPICTRL_MAXBITS 0xfff
#define MXC_CSPIPERIOD_32KHZ (1 << 15)
#define MAX_SPI_BYTES 4
#define MXC_SPI_BASE_ADDRESSES \
0x43fa4000, \
0x50010000,
@ -280,18 +262,6 @@ struct gpt_regs {
u32 counter; /* counter */
};
/* CSPI registers */
struct cspi_regs {
u32 rxdata;
u32 txdata;
u32 ctrl;
u32 intr;
u32 dma;
u32 stat;
u32 period;
u32 test;
};
struct esdc_regs {
u32 esdctl0;
u32 esdcfg0;

36
arch/arm/include/asm/arch-mx5/imx-regs.h
View file

@ -204,30 +204,6 @@
/*
* CSPI register definitions
*/
#define MXC_ECSPI
#define MXC_CSPICTRL_EN (1 << 0)
#define MXC_CSPICTRL_MODE (1 << 1)
#define MXC_CSPICTRL_XCH (1 << 2)
#define MXC_CSPICTRL_MODE_MASK (0xf << 4)
#define MXC_CSPICTRL_CHIPSELECT(x) (((x) & 0x3) << 12)
#define MXC_CSPICTRL_BITCOUNT(x) (((x) & 0xfff) << 20)
#define MXC_CSPICTRL_PREDIV(x) (((x) & 0xF) << 12)
#define MXC_CSPICTRL_POSTDIV(x) (((x) & 0xF) << 8)
#define MXC_CSPICTRL_SELCHAN(x) (((x) & 0x3) << 18)
#define MXC_CSPICTRL_MAXBITS 0xfff
#define MXC_CSPICTRL_TC (1 << 7)
#define MXC_CSPICTRL_RXOVF (1 << 6)
#define MXC_CSPIPERIOD_32KHZ (1 << 15)
#define MAX_SPI_BYTES 32
/* Bit position inside CTRL register to be associated with SS */
#define MXC_CSPICTRL_CHAN 18
/* Bit position inside CON register to be associated with SS */
#define MXC_CSPICON_PHA 0 /* SCLK phase control */
#define MXC_CSPICON_POL 4 /* SCLK polarity */
#define MXC_CSPICON_SSPOL 12 /* SS polarity */
#define MXC_CSPICON_CTL 20 /* inactive state of SCLK */
#define MXC_SPI_BASE_ADDRESSES \
CSPI1_BASE_ADDR, \
CSPI2_BASE_ADDR, \
@ -476,18 +452,6 @@ struct srtc_regs {
u32 hpienr; /* 0x38 */
};
/* CSPI registers */
struct cspi_regs {
u32 rxdata;
u32 txdata;
u32 ctrl;
u32 cfg;
u32 intr;
u32 dma;
u32 stat;
u32 period;
};
struct iim_regs {
u32 stat;
u32 statm;

36
arch/arm/include/asm/arch-mx6/imx-regs.h
View file

@ -668,46 +668,10 @@ struct gpc {
#define IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0 (IOMUXC_GPR2_MODE_ENABLED_DI0<<IOMUXC_GPR2_LVDS_CH0_MODE_OFFSET)
#define IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI1 (IOMUXC_GPR2_MODE_ENABLED_DI1<<IOMUXC_GPR2_LVDS_CH0_MODE_OFFSET)
/* ECSPI registers */
struct cspi_regs {
u32 rxdata;
u32 txdata;
u32 ctrl;
u32 cfg;
u32 intr;
u32 dma;
u32 stat;
u32 period;
};
/*
* CSPI register definitions
*/
#define MXC_ECSPI
#define MXC_CSPICTRL_EN (1 << 0)
#define MXC_CSPICTRL_MODE (1 << 1)
#define MXC_CSPICTRL_XCH (1 << 2)
#define MXC_CSPICTRL_MODE_MASK (0xf << 4)
#define MXC_CSPICTRL_CHIPSELECT(x) (((x) & 0x3) << 12)
#define MXC_CSPICTRL_BITCOUNT(x) (((x) & 0xfff) << 20)
#define MXC_CSPICTRL_PREDIV(x) (((x) & 0xF) << 12)
#define MXC_CSPICTRL_POSTDIV(x) (((x) & 0xF) << 8)
#define MXC_CSPICTRL_SELCHAN(x) (((x) & 0x3) << 18)
#define MXC_CSPICTRL_MAXBITS 0xfff
#define MXC_CSPICTRL_TC (1 << 7)
#define MXC_CSPICTRL_RXOVF (1 << 6)
#define MXC_CSPIPERIOD_32KHZ (1 << 15)
#define MAX_SPI_BYTES 32
#define SPI_MAX_NUM 4
/* Bit position inside CTRL register to be associated with SS */
#define MXC_CSPICTRL_CHAN 18
/* Bit position inside CON register to be associated with SS */
#define MXC_CSPICON_PHA 0 /* SCLK phase control */
#define MXC_CSPICON_POL 4 /* SCLK polarity */
#define MXC_CSPICON_SSPOL 12 /* SS polarity */
#define MXC_CSPICON_CTL 20 /* inactive state of SCLK */
#if defined(CONFIG_MX6SLL) || defined(CONFIG_MX6SL) || \
defined(CONFIG_MX6DL) || defined(CONFIG_MX6UL) || defined(CONFIG_MX6ULL)
#define MXC_SPI_BASE_ADDRESSES \

37
arch/arm/include/asm/arch-mx7/imx-regs.h
View file

@ -842,46 +842,9 @@ struct iomuxc_gpr_base_regs {
u32 gpr[23]; /* 0x000 */
};
/* ECSPI registers */
struct cspi_regs {
u32 rxdata;
u32 txdata;
u32 ctrl;
u32 cfg;
u32 intr;
u32 dma;
u32 stat;
u32 period;
};
/*
* CSPI register definitions
*/
#define MXC_ECSPI
#define MXC_CSPICTRL_EN (1 << 0)
#define MXC_CSPICTRL_MODE (1 << 1)
#define MXC_CSPICTRL_XCH (1 << 2)
#define MXC_CSPICTRL_MODE_MASK (0xf << 4)
#define MXC_CSPICTRL_CHIPSELECT(x) (((x) & 0x3) << 12)
#define MXC_CSPICTRL_BITCOUNT(x) (((x) & 0xfff) << 20)
#define MXC_CSPICTRL_PREDIV(x) (((x) & 0xF) << 12)
#define MXC_CSPICTRL_POSTDIV(x) (((x) & 0xF) << 8)
#define MXC_CSPICTRL_SELCHAN(x) (((x) & 0x3) << 18)
#define MXC_CSPICTRL_MAXBITS 0xfff
#define MXC_CSPICTRL_TC (1 << 7)
#define MXC_CSPICTRL_RXOVF (1 << 6)
#define MXC_CSPIPERIOD_32KHZ (1 << 15)
#define MAX_SPI_BYTES 32
/* Bit position inside CTRL register to be associated with SS */
#define MXC_CSPICTRL_CHAN 18
/* Bit position inside CON register to be associated with SS */
#define MXC_CSPICON_PHA 0 /* SCLK phase control */
#define MXC_CSPICON_POL 4 /* SCLK polarity */
#define MXC_CSPICON_SSPOL 12 /* SS polarity */
#define MXC_CSPICON_CTL 20 /* inactive state of SCLK */
#define MXC_SPI_BASE_ADDRESSES \
ECSPI1_BASE_ADDR, \
ECSPI2_BASE_ADDR, \

76
drivers/spi/mxc_spi.c
View file

@ -20,6 +20,82 @@
DECLARE_GLOBAL_DATA_PTR;
/* MX35 and older is CSPI */
#if defined(CONFIG_MX25) || defined(CONFIG_MX31) || defined(CONFIG_MX35)
#define MXC_CSPI
struct cspi_regs {
u32 rxdata;
u32 txdata;
u32 ctrl;
u32 intr;
u32 dma;
u32 stat;
u32 period;
u32 test;
};
#define MXC_CSPICTRL_EN BIT(0)
#define MXC_CSPICTRL_MODE BIT(1)
#define MXC_CSPICTRL_XCH BIT(2)
#define MXC_CSPICTRL_SMC BIT(3)
#define MXC_CSPICTRL_POL BIT(4)
#define MXC_CSPICTRL_PHA BIT(5)
#define MXC_CSPICTRL_SSCTL BIT(6)
#define MXC_CSPICTRL_SSPOL BIT(7)
#define MXC_CSPICTRL_DATARATE(x) (((x) & 0x7) << 16)
#define MXC_CSPICTRL_RXOVF BIT(6)
#define MXC_CSPIPERIOD_32KHZ BIT(15)
#define MAX_SPI_BYTES 4
#if defined(CONFIG_MX25) || defined(CONFIG_MX35)
#define MXC_CSPICTRL_CHIPSELECT(x) (((x) & 0x3) << 12)
#define MXC_CSPICTRL_BITCOUNT(x) (((x) & 0xfff) << 20)
#define MXC_CSPICTRL_TC BIT(7)
#define MXC_CSPICTRL_MAXBITS 0xfff
#else /* MX31 */
#define MXC_CSPICTRL_CHIPSELECT(x) (((x) & 0x3) << 24)
#define MXC_CSPICTRL_BITCOUNT(x) (((x) & 0x1f) << 8)
#define MXC_CSPICTRL_TC BIT(8)
#define MXC_CSPICTRL_MAXBITS 0x1f
#endif
#else /* MX51 and newer is ECSPI */
#define MXC_ECSPI
struct cspi_regs {
u32 rxdata;
u32 txdata;
u32 ctrl;
u32 cfg;
u32 intr;
u32 dma;
u32 stat;
u32 period;
};
#define MXC_CSPICTRL_EN BIT(0)
#define MXC_CSPICTRL_MODE BIT(1)
#define MXC_CSPICTRL_XCH BIT(2)
#define MXC_CSPICTRL_MODE_MASK (0xf << 4)
#define MXC_CSPICTRL_CHIPSELECT(x) (((x) & 0x3) << 12)
#define MXC_CSPICTRL_BITCOUNT(x) (((x) & 0xfff) << 20)
#define MXC_CSPICTRL_PREDIV(x) (((x) & 0xF) << 12)
#define MXC_CSPICTRL_POSTDIV(x) (((x) & 0xF) << 8)
#define MXC_CSPICTRL_SELCHAN(x) (((x) & 0x3) << 18)
#define MXC_CSPICTRL_MAXBITS 0xfff
#define MXC_CSPICTRL_TC BIT(7)
#define MXC_CSPICTRL_RXOVF BIT(6)
#define MXC_CSPIPERIOD_32KHZ BIT(15)
#define MAX_SPI_BYTES 32
/* Bit position inside CTRL register to be associated with SS */
#define MXC_CSPICTRL_CHAN 18
/* Bit position inside CON register to be associated with SS */
#define MXC_CSPICON_PHA 0 /* SCLK phase control */
#define MXC_CSPICON_POL 4 /* SCLK polarity */
#define MXC_CSPICON_SSPOL 12 /* SS polarity */
#define MXC_CSPICON_CTL 20 /* inactive state of SCLK */
#endif
#ifdef CONFIG_MX27
/* i.MX27 has a completely wrong register layout and register definitions in the
* datasheet, the correct one is in the Freescale's Linux driver */