Ensuring the baudrate divisor value doesn't exceed the max value in the calculation.It will be capped at max value to ensure the correct value being written into the register.
Signed-off-by: Chin Liang See <[email protected]> Cc: Marek Vasut <[email protected]> Cc: Jagan Teki <[email protected]> Cc: Dinh Nguyen <[email protected]> --- drivers/spi/cadence_qspi_apb.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/spi/cadence_qspi_apb.c b/drivers/spi/cadence_qspi_apb.c index 1a35d55..e6a8ecb 100644 --- a/drivers/spi/cadence_qspi_apb.c +++ b/drivers/spi/cadence_qspi_apb.c @@ -293,6 +293,10 @@ void cadence_qspi_apb_config_baudrate_div(void *reg_base, debug("%s: ref_clk %dHz sclk %dHz Div 0x%x\n", __func__, ref_clk_hz, sclk_hz, div); + /* ensure the baud rate doesn't exceed the max value */ + if (div > CQSPI_REG_CONFIG_BAUD_MASK) + div = CQSPI_REG_CONFIG_BAUD_MASK; + div = (div & CQSPI_REG_CONFIG_BAUD_MASK) << CQSPI_REG_CONFIG_BAUD_LSB; reg |= div; writel(reg, reg_base + CQSPI_REG_CONFIG); -- 2.2.2 _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
