diff options
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/spi/spi-imx.c | 70 |
2 files changed, 19 insertions, 56 deletions
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 9aafa98..c327cf3 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -161,10 +161,7 @@ config SPI_IMX_VER_0_0 def_bool y if SOC_IMX21 || SOC_IMX27 config SPI_IMX_VER_0_4 - def_bool y if SOC_IMX31 - -config SPI_IMX_VER_0_7 - def_bool y if ARCH_MX25 || SOC_IMX35 || SOC_IMX51 || SOC_IMX53 + def_bool y if ARCH_MX25 || SOC_IMX31 || SOC_IMX35 || SOC_IMX51 || SOC_IMX53 config SPI_IMX_VER_2_3 def_bool y if SOC_IMX51 || SOC_IMX53 diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 0fbd378..615a84c 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -45,9 +45,6 @@ #define MXC_CSPIINT 0x0c #define MXC_RESET 0x1c -#define MX3_CSPISTAT 0x14 -#define MX3_CSPISTAT_RR (1 << 3) - /* generic defines to abstract from the different register layouts */ #define MXC_INT_RR (1 << 0) /* Receive data ready interrupt */ #define MXC_INT_TE (1 << 1) /* Transmit FIFO empty interrupt */ @@ -63,8 +60,6 @@ enum spi_imx_devtype { SPI_IMX_VER_IMX1, SPI_IMX_VER_0_0, SPI_IMX_VER_0_4, - SPI_IMX_VER_0_5, - SPI_IMX_VER_0_7, SPI_IMX_VER_2_3, }; @@ -343,32 +338,7 @@ static void __maybe_unused mx31_trigger(struct spi_imx_data *spi_imx) writel(reg, spi_imx->base + MXC_CSPICTRL); } -static int __maybe_unused spi_imx0_4_config(struct spi_imx_data *spi_imx, - struct spi_imx_config *config) -{ - unsigned int reg = MX31_CSPICTRL_ENABLE | MX31_CSPICTRL_MASTER; - int cs = spi_imx->chipselect[config->cs]; - - reg |= spi_imx_clkdiv_2(spi_imx->spi_clk, config->speed_hz) << - MX31_CSPICTRL_DR_SHIFT; - - reg |= (config->bpw - 1) << MX31_CSPICTRL_BC_SHIFT; - - if (config->mode & SPI_CPHA) - reg |= MX31_CSPICTRL_PHA; - if (config->mode & SPI_CPOL) - reg |= MX31_CSPICTRL_POL; - if (config->mode & SPI_CS_HIGH) - reg |= MX31_CSPICTRL_SSPOL; - if (cs < 0) - reg |= (cs + 32) << MX31_CSPICTRL_CS_SHIFT; - - writel(reg, spi_imx->base + MXC_CSPICTRL); - - return 0; -} - -static int __maybe_unused spi_imx0_7_config(struct spi_imx_data *spi_imx, +static int __maybe_unused mx31_config(struct spi_imx_data *spi_imx, struct spi_imx_config *config) { unsigned int reg = MX31_CSPICTRL_ENABLE | MX31_CSPICTRL_MASTER; @@ -377,8 +347,12 @@ static int __maybe_unused spi_imx0_7_config(struct spi_imx_data *spi_imx, reg |= spi_imx_clkdiv_2(spi_imx->spi_clk, config->speed_hz) << MX31_CSPICTRL_DR_SHIFT; - reg |= (config->bpw - 1) << MX35_CSPICTRL_BL_SHIFT; - reg |= MX31_CSPICTRL_SSCTL; + if (cpu_is_mx35()) { + reg |= (config->bpw - 1) << MX35_CSPICTRL_BL_SHIFT; + reg |= MX31_CSPICTRL_SSCTL; + } else { + reg |= (config->bpw - 1) << MX31_CSPICTRL_BC_SHIFT; + } if (config->mode & SPI_CPHA) reg |= MX31_CSPICTRL_PHA; @@ -387,7 +361,9 @@ static int __maybe_unused spi_imx0_7_config(struct spi_imx_data *spi_imx, if (config->mode & SPI_CS_HIGH) reg |= MX31_CSPICTRL_SSPOL; if (cs < 0) - reg |= (cs + 32) << MX35_CSPICTRL_CS_SHIFT; + reg |= (cs + 32) << + (cpu_is_mx35() ? MX35_CSPICTRL_CS_SHIFT : + MX31_CSPICTRL_CS_SHIFT); writel(reg, spi_imx->base + MXC_CSPICTRL); @@ -399,10 +375,10 @@ static int __maybe_unused mx31_rx_available(struct spi_imx_data *spi_imx) return readl(spi_imx->base + MX31_CSPISTATUS) & MX31_STATUS_RR; } -static void __maybe_unused spi_imx0_4_reset(struct spi_imx_data *spi_imx) +static void __maybe_unused mx31_reset(struct spi_imx_data *spi_imx) { /* drain receive buffer */ - while (readl(spi_imx->base + MX3_CSPISTAT) & MX3_CSPISTAT_RR) + while (readl(spi_imx->base + MX31_CSPISTATUS) & MX31_STATUS_RR) readl(spi_imx->base + MXC_CSPIRXDATA); } @@ -563,20 +539,10 @@ static struct spi_imx_devtype_data spi_imx_devtype_data[] = { #ifdef CONFIG_SPI_IMX_VER_0_4 [SPI_IMX_VER_0_4] = { .intctrl = mx31_intctrl, - .config = spi_imx0_4_config, + .config = mx31_config, .trigger = mx31_trigger, .rx_available = mx31_rx_available, - .reset = spi_imx0_4_reset, - .fifosize = 8, - }, -#endif -#ifdef CONFIG_SPI_IMX_VER_0_7 - [SPI_IMX_VER_0_7] = { - .intctrl = mx31_intctrl, - .config = spi_imx0_7_config, - .trigger = mx31_trigger, - .rx_available = mx31_rx_available, - .reset = spi_imx0_4_reset, + .reset = mx31_reset, .fifosize = 8, }, #endif @@ -732,7 +698,7 @@ static struct platform_device_id spi_imx_devtype[] = { .driver_data = SPI_IMX_VER_0_0, }, { .name = "imx25-cspi", - .driver_data = SPI_IMX_VER_0_7, + .driver_data = SPI_IMX_VER_0_4, }, { .name = "imx27-cspi", .driver_data = SPI_IMX_VER_0_0, @@ -741,16 +707,16 @@ static struct platform_device_id spi_imx_devtype[] = { .driver_data = SPI_IMX_VER_0_4, }, { .name = "imx35-cspi", - .driver_data = SPI_IMX_VER_0_7, + .driver_data = SPI_IMX_VER_0_4, }, { .name = "imx51-cspi", - .driver_data = SPI_IMX_VER_0_7, + .driver_data = SPI_IMX_VER_0_4, }, { .name = "imx51-ecspi", .driver_data = SPI_IMX_VER_2_3, }, { .name = "imx53-cspi", - .driver_data = SPI_IMX_VER_0_7, + .driver_data = SPI_IMX_VER_0_4, }, { .name = "imx53-ecspi", .driver_data = SPI_IMX_VER_2_3, |
