Ensure the intended SCLK frequency not exceeding the maximum frequency. If that happen, SCLK will set to maximum frequency.
Signed-off-by: Chin Liang See clsee@altera.com Cc: Dinh Nguyen dinguyen@opensource.altera.com Cc: Dinh Nguyen dinh.linux@gmail.com Cc: Marek Vasut marex@denx.de Cc: Stefan Roese sr@denx.de Cc: Vikas Manocha vikas.manocha@st.com Cc: Jagannadh Teki jteki@openedev.com Cc: Pavel Machek pavel@denx.de --- drivers/spi/cadence_qspi.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c index a00af87..52c29d5 100644 --- a/drivers/spi/cadence_qspi.c +++ b/drivers/spi/cadence_qspi.c @@ -123,6 +123,11 @@ static int cadence_spi_set_speed(struct udevice *bus, uint hz) struct cadence_spi_priv *priv = dev_get_priv(bus); int err;
+ if (hz > plat->max_hz) { + hz = plat->max_hz; + puts("SF: Default to maximum supported SCLK frequency\n"); + } + /* Disable QSPI */ cadence_qspi_apb_controller_disable(priv->regbase);