diff options
| author | Han Xu <han.xu@nxp.com> | 2017-08-11 14:48:25 -0500 |
|---|---|---|
| committer | Ye Li <ye.li@nxp.com> | 2018-04-27 02:32:29 -0700 |
| commit | 71368855b63c16998ca5681984e70a913e1f4d84 (patch) | |
| tree | 66077f3ee21db378ce1ced1464c90d096770a9b2 /drivers/spi | |
| parent | 24c5cdaa45fda19b885783054820f309c05bab16 (diff) | |
MLK-16186: spi: flexspi: reset the flexspi DLL register to default value
i.MX8QM ROM didn't calculate the DLL correctly in some cases, to avoid
the wrong DLL setting impact the following functions, reset them to the
default value when probe.
Signed-off-by: Han Xu <han.xu@nxp.com>
(cherry picked from commit da3c2a9f09afa45a428809b7bf3f981a1ccb7f2e)
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/fsl_fspi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/spi/fsl_fspi.c b/drivers/spi/fsl_fspi.c index b3c6209585..06369d0a9b 100644 --- a/drivers/spi/fsl_fspi.c +++ b/drivers/spi/fsl_fspi.c @@ -1178,6 +1178,10 @@ static int fsl_fspi_probe(struct udevice *bus) fspi_write32(priv->flags, &priv->regs->mcr0, 0xFFFF0000); + /* Reset the DLL register to default value */ + fspi_write32(priv->flags, &priv->regs->dllacr, 0x0100); + fspi_write32(priv->flags, &priv->regs->dllbcr, 0x0100); + /* Flash Size in KByte */ total_size = FSL_FSPI_FLASH_SIZE * FSL_FSPI_FLASH_NUM >> 10; |