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| author | Chin Liang See <clsee@altera.com> | 2015-10-17 08:32:38 -0500 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2015-11-05 02:34:15 +0100 |
| commit | 4e609b6cb1e6e8cb14c55fd50c73c5affcba26b5 (patch) | |
| tree | ffd2305483ba308f194d2fa2fcb02b9ee14b6a7d /drivers/spi | |
| parent | 040f4ba742700529d950a92da5ddbe99d9ae335e (diff) | |
| download | u-boot-4e609b6cb1e6e8cb14c55fd50c73c5affcba26b5.tar.gz u-boot-4e609b6cb1e6e8cb14c55fd50c73c5affcba26b5.tar.bz2 u-boot-4e609b6cb1e6e8cb14c55fd50c73c5affcba26b5.zip | |
spi: cadence_qspi: Ensure check for max frequency in place
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>
Acked-by: Pavel Machek <pavel@denx.de>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/cadence_qspi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c index 5756178761..4f7fd52532 100644 --- a/drivers/spi/cadence_qspi.c +++ b/drivers/spi/cadence_qspi.c @@ -122,6 +122,9 @@ 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; + /* Disable QSPI */ cadence_qspi_apb_controller_disable(priv->regbase); |