From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chin Liang See Date: Tue, 1 Sep 2015 03:46:47 -0500 Subject: [U-Boot] [PATCH] spi: cadence_qspi: Ensure spi_calibration is run when sclk change Message-ID: <1441097207-2162-1-git-send-email-clsee@altera.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Ensuring spi_calibration is run when there is a change of sclk frequency. This will ensure the qspi flash access works for high sclk frequency Signed-off-by: Chin Liang See Cc: Dinh Nguyen Cc: Marek Vasut Cc: Stefan Roese Cc: Vikas Manocha Cc: Jagannadh Teki Cc: Pavel Machek --- 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 34a0f46..512bf2d 100644 --- a/drivers/spi/cadence_qspi.c +++ b/drivers/spi/cadence_qspi.c @@ -128,6 +128,9 @@ static int cadence_spi_set_speed(struct udevice *bus, uint hz) cadence_spi_write_speed(bus, hz); + /* to ensure spi_calibration is run when SCLK frequency change */ + plat->max_hz = hz; + /* Calibration required for different SCLK speed or chip select */ if (priv->qspi_calibrated_hz != plat->max_hz || priv->qspi_calibrated_cs != spi_chip_select(bus)) { -- 1.7.7.4