diff options
| author | Ye Li <ye.li@nxp.com> | 2019-07-03 00:58:13 -0700 |
|---|---|---|
| committer | Ye Li <ye.li@nxp.com> | 2019-07-30 01:45:13 -0700 |
| commit | 256fcd3df1b0a0b9c0fb730fabb7497800cda3a6 (patch) | |
| tree | a142c6603bde05cab7c88b034bab7eb66e875e34 /drivers | |
| parent | 6736f4f750e66431330d6405dbe78042a3b20110 (diff) | |
MLK-22179-1 fsl_fspi: Add a config to enable dummy DQS loopback from pad
Set MCR0 RXCLKSRC to 1 to enable DQS loopback from pad to support
higher frequency.
Signed-off-by: Ye Li <ye.li@nxp.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/fsl_fspi.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/spi/fsl_fspi.c b/drivers/spi/fsl_fspi.c index 460d284401..c438dcccb3 100644 --- a/drivers/spi/fsl_fspi.c +++ b/drivers/spi/fsl_fspi.c @@ -1105,8 +1105,13 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs, fspi_module_disable(&fspi->priv, 1); /* Enable the module and set to proper value*/ +#ifdef CONFIG_FSPI_DQS_LOOPBACK + fspi_write32(fspi->priv.flags, ®s->mcr0, + 0xFFFF0010); +#else fspi_write32(fspi->priv.flags, ®s->mcr0, 0xFFFF0000); +#endif total_size = FSL_FSPI_FLASH_SIZE * FSL_FSPI_FLASH_NUM >> 10; /* @@ -1214,8 +1219,13 @@ static int fsl_fspi_probe(struct udevice *bus) fspi_module_disable(priv, 1); /* Enable the module and set to proper value*/ +#ifdef CONFIG_FSPI_DQS_LOOPBACK + fspi_write32(priv->flags, &priv->regs->mcr0, + 0xFFFF0010); +#else fspi_write32(priv->flags, &priv->regs->mcr0, 0xFFFF0000); +#endif /* Reset the DLL register to default value */ fspi_write32(priv->flags, &priv->regs->dllacr, 0x0100); |