In case the clock framework is enabled, enable the SPI controller clock and obtain max frequency from the clock framework.
Signed-off-by: Marek Vasut marex@denx.de Cc: Jagan Teki jagan@amarulasolutions.com Cc: Stefano Babic sbabic@denx.de --- drivers/spi/mxc_spi.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c index 849808fb916..3377200d24f 100644 --- a/drivers/spi/mxc_spi.c +++ b/drivers/spi/mxc_spi.c @@ -4,6 +4,7 @@ */
#include <common.h> +#include <clk.h> #include <dm.h> #include <log.h> #include <malloc.h> @@ -617,8 +618,19 @@ static int mxc_spi_probe(struct udevice *bus) if (mxcs->base == FDT_ADDR_T_NONE) return -ENODEV;
+#if CONFIG_IS_ENABLED(CLK) + struct clk clk; + ret = clk_get_by_index(bus, 0, &clk); + if (ret) + return ret; + + clk_enable(&clk); + + mxcs->max_hz = clk_get_rate(&clk); +#else mxcs->max_hz = fdtdec_get_int(blob, node, "spi-max-frequency", 20000000); +#endif
return 0; }