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 <cl...@altera.com>
Cc: Dinh Nguyen <dingu...@opensource.altera.com>
Cc: Dinh Nguyen <dinh.li...@gmail.com>
Cc: Marek Vasut <ma...@denx.de>
Cc: Stefan Roese <s...@denx.de>
Cc: Vikas Manocha <vikas.mano...@st.com>
Cc: Jagannadh Teki <jt...@openedev.com>
Cc: Pavel Machek <pa...@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);
--
1.7.7.4
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