diff options
Diffstat (limited to 'drivers/spi/spi-cadence-quadspi.c')
| -rw-r--r-- | drivers/spi/spi-cadence-quadspi.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c index 8b3d268ac63c..b808c94641fa 100644 --- a/drivers/spi/spi-cadence-quadspi.c +++ b/drivers/spi/spi-cadence-quadspi.c @@ -37,6 +37,7 @@ #define CQSPI_NEEDS_WR_DELAY BIT(0) #define CQSPI_DISABLE_DAC_MODE BIT(1) #define CQSPI_SUPPORT_EXTERNAL_DMA BIT(2) +#define CQSPI_NO_SUPPORT_WR_COMPLETION BIT(3) /* Capabilities */ #define CQSPI_SUPPORTS_OCTAL BIT(0) @@ -86,6 +87,7 @@ struct cqspi_st { struct cqspi_flash_pdata f_pdata[CQSPI_MAX_CHIPSELECT]; bool use_dma_read; u32 pd_dev_id; + bool wr_completion; }; struct cqspi_driver_platdata { @@ -996,9 +998,11 @@ static int cqspi_write_setup(struct cqspi_flash_pdata *f_pdata, * polling on the controller's side. spinand and spi-nor will take * care of polling the status register. */ - reg = readl(reg_base + CQSPI_REG_WR_COMPLETION_CTRL); - reg |= CQSPI_REG_WR_DISABLE_AUTO_POLL; - writel(reg, reg_base + CQSPI_REG_WR_COMPLETION_CTRL); + if (cqspi->wr_completion) { + reg = readl(reg_base + CQSPI_REG_WR_COMPLETION_CTRL); + reg |= CQSPI_REG_WR_DISABLE_AUTO_POLL; + writel(reg, reg_base + CQSPI_REG_WR_COMPLETION_CTRL); + } reg = readl(reg_base + CQSPI_REG_SIZE); reg &= ~CQSPI_REG_SIZE_ADDRESS_MASK; @@ -1736,6 +1740,10 @@ static int cqspi_probe(struct platform_device *pdev) cqspi->master_ref_clk_hz = clk_get_rate(cqspi->clk); master->max_speed_hz = cqspi->master_ref_clk_hz; + + /* write completion is supported by default */ + cqspi->wr_completion = true; + ddata = of_device_get_match_data(dev); if (ddata) { if (ddata->quirks & CQSPI_NEEDS_WR_DELAY) @@ -1747,6 +1755,8 @@ static int cqspi_probe(struct platform_device *pdev) cqspi->use_direct_mode = true; if (ddata->quirks & CQSPI_SUPPORT_EXTERNAL_DMA) cqspi->use_dma_read = true; + if (ddata->quirks & CQSPI_NO_SUPPORT_WR_COMPLETION) + cqspi->wr_completion = false; if (of_device_is_compatible(pdev->dev.of_node, "xlnx,versal-ospi-1.0")) @@ -1859,6 +1869,10 @@ static const struct cqspi_driver_platdata intel_lgm_qspi = { .quirks = CQSPI_DISABLE_DAC_MODE, }; +static const struct cqspi_driver_platdata socfpga_qspi = { + .quirks = CQSPI_NO_SUPPORT_WR_COMPLETION, +}; + static const struct cqspi_driver_platdata versal_ospi = { .hwcaps_mask = CQSPI_SUPPORTS_OCTAL, .quirks = CQSPI_DISABLE_DAC_MODE | CQSPI_SUPPORT_EXTERNAL_DMA, @@ -1887,6 +1901,10 @@ static const struct of_device_id cqspi_dt_ids[] = { .compatible = "xlnx,versal-ospi-1.0", .data = (void *)&versal_ospi, }, + { + .compatible = "intel,socfpga-qspi", + .data = (void *)&socfpga_qspi, + }, { /* end of table */ } }; |