diff options
| author | Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com> | 2024-09-26 10:25:05 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2024-10-09 09:01:54 -0600 |
| commit | 34da258bb0465de4bf44dc8949a9536cc06bf725 (patch) | |
| tree | 7aa92b21cd25503e3ad8ed496a38a3ef080546c1 /drivers/spi/fsl_dspi.c | |
| parent | c480ec2c45b221b2044c6268c9773e78fa47f305 (diff) | |
spi: spi-uclass: Read chipselect and restrict capabilities
Read chipselect properties from DT which are populated using 'reg'
property and save it in plat->cs[] array for later use.
Also read multi chipselect capability which is used for
parallel-memories and return errors if they are passed on using DT but
driver is not capable of handling it.
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@amd.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Diffstat (limited to 'drivers/spi/fsl_dspi.c')
| -rw-r--r-- | drivers/spi/fsl_dspi.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/spi/fsl_dspi.c b/drivers/spi/fsl_dspi.c index 1d4d90ce5aa..f2393c041f4 100644 --- a/drivers/spi/fsl_dspi.c +++ b/drivers/spi/fsl_dspi.c @@ -452,9 +452,9 @@ static int fsl_dspi_child_pre_probe(struct udevice *dev) unsigned char pcssck = 0, cssck = 0; unsigned char pasc = 0, asc = 0; - if (slave_plat->cs >= priv->num_chipselect) { + if (slave_plat->cs[0] >= priv->num_chipselect) { debug("DSPI invalid chipselect number %d(max %d)!\n", - slave_plat->cs, priv->num_chipselect - 1); + slave_plat->cs[0], priv->num_chipselect - 1); return -EINVAL; } @@ -469,12 +469,12 @@ static int fsl_dspi_child_pre_probe(struct udevice *dev) /* Set After SCK delay scale values */ ns_delay_scale(&pasc, &asc, sck_cs_delay, priv->bus_clk); - priv->ctar_val[slave_plat->cs] = DSPI_CTAR_DEFAULT_VALUE | + priv->ctar_val[slave_plat->cs[0]] = DSPI_CTAR_DEFAULT_VALUE | DSPI_CTAR_PCSSCK(pcssck) | DSPI_CTAR_PASC(pasc); debug("DSPI pre_probe slave device on CS %u, max_hz %u, mode 0x%x.\n", - slave_plat->cs, slave_plat->max_hz, slave_plat->mode); + slave_plat->cs[0], slave_plat->max_hz, slave_plat->mode); return 0; } @@ -527,13 +527,13 @@ static int fsl_dspi_claim_bus(struct udevice *dev) priv = dev_get_priv(bus); /* processor special preparation work */ - cpu_dspi_claim_bus(dev_seq(bus), slave_plat->cs); + cpu_dspi_claim_bus(dev_seq(bus), slave_plat->cs[0]); /* configure transfer mode */ - fsl_dspi_cfg_ctar_mode(priv, slave_plat->cs, priv->mode); + fsl_dspi_cfg_ctar_mode(priv, slave_plat->cs[0], priv->mode); /* configure active state of CSX */ - fsl_dspi_cfg_cs_active_state(priv, slave_plat->cs, + fsl_dspi_cfg_cs_active_state(priv, slave_plat->cs[0], priv->mode); fsl_dspi_clr_fifo(priv); @@ -559,7 +559,7 @@ static int fsl_dspi_release_bus(struct udevice *dev) dspi_halt(priv, 1); /* processor special release work */ - cpu_dspi_release_bus(dev_seq(bus), slave_plat->cs); + cpu_dspi_release_bus(dev_seq(bus), slave_plat->cs[0]); return 0; } @@ -615,7 +615,7 @@ static int fsl_dspi_xfer(struct udevice *dev, unsigned int bitlen, bus = dev->parent; priv = dev_get_priv(bus); - return dspi_xfer(priv, slave_plat->cs, bitlen, dout, din, flags); + return dspi_xfer(priv, slave_plat->cs[0], bitlen, dout, din, flags); } static int fsl_dspi_set_speed(struct udevice *bus, uint speed) |