diff options
Diffstat (limited to 'drivers/spi/spi-dw-core.c')
| -rw-r--r-- | drivers/spi/spi-dw-core.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/spi/spi-dw-core.c b/drivers/spi/spi-dw-core.c index b9f809989fda..42536b448ddd 100644 --- a/drivers/spi/spi-dw-core.c +++ b/drivers/spi/spi-dw-core.c @@ -824,6 +824,20 @@ static void dw_spi_hw_init(struct device *dev, struct dw_spi *dws) dw_spi_reset_chip(dws); /* + * Retrieve the Synopsys component version if it hasn't been specified + * by the platform. CoreKit version ID is encoded as a 3-chars ASCII + * code enclosed with '*' (typical for the most of Synopsys IP-cores). + */ + if (!dws->ver) { + dws->ver = dw_readl(dws, DW_SPI_VERSION); + + dev_dbg(dev, "Synopsys DWC%sSSI v%c.%c%c\n", + (dws->caps & DW_SPI_CAP_DWC_HSSI) ? " " : " APB ", + DW_SPI_GET_BYTE(dws->ver, 3), DW_SPI_GET_BYTE(dws->ver, 2), + DW_SPI_GET_BYTE(dws->ver, 1)); + } + + /* * Try to detect the FIFO depth if not set by interface driver, * the depth could be from 2 to 256 from HW spec */ |