summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--drivers/spi/cadence_qspi_apb.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/spi/cadence_qspi_apb.c b/drivers/spi/cadence_qspi_apb.c
index 1a35d55..1d68379 100644
--- a/drivers/spi/cadence_qspi_apb.c
+++ b/drivers/spi/cadence_qspi_apb.c
@@ -293,8 +293,11 @@ 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);
- div = (div & CQSPI_REG_CONFIG_BAUD_MASK) << CQSPI_REG_CONFIG_BAUD_LSB;
- reg |= div;
+ /* ensure the baud rate doesn't exceed the max value */
+ if (div > CQSPI_REG_CONFIG_BAUD_MASK)
+ div = CQSPI_REG_CONFIG_BAUD_MASK;
+
+ reg |= (div << CQSPI_REG_CONFIG_BAUD_LSB);
writel(reg, reg_base + CQSPI_REG_CONFIG);
cadence_qspi_apb_controller_enable(reg_base);