diff options
| -rw-r--r-- | drivers/spi/spi-nxp-fspi.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/spi/spi-nxp-fspi.c b/drivers/spi/spi-nxp-fspi.c index 76168cc1e00d..6735c22b9137 100644 --- a/drivers/spi/spi-nxp-fspi.c +++ b/drivers/spi/spi-nxp-fspi.c @@ -997,7 +997,11 @@ static int nxp_fspi_default_setup(struct nxp_fspi *f) /* Disable the module */ fspi_writel(f, FSPI_MCR0_MDIS, base + FSPI_MCR0); - /* Reset the DLL register to default value */ + /* + * Config the DLL register to default value, enable the slave clock delay + * line delay cell override mode, and use 1 fixed delay cell in DLL delay + * chain, this is the suggested setting when clock rate < 100MHz. + */ fspi_writel(f, FSPI_DLLACR_OVRDEN, base + FSPI_DLLACR); fspi_writel(f, FSPI_DLLBCR_OVRDEN, base + FSPI_DLLBCR); |