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/bcm63xx_hsspi.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/bcm63xx_hsspi.c')
| -rw-r--r-- | drivers/spi/bcm63xx_hsspi.c | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/drivers/spi/bcm63xx_hsspi.c b/drivers/spi/bcm63xx_hsspi.c index 1aa43fd3a23..e9f0b343abb 100644 --- a/drivers/spi/bcm63xx_hsspi.c +++ b/drivers/spi/bcm63xx_hsspi.c @@ -174,7 +174,7 @@ static void bcm63xx_hsspi_activate_cs(struct bcm63xx_hsspi_priv *priv, set = DIV_ROUND_UP(2048, set); set &= SPI_PFL_CLK_FREQ_MASK; set |= SPI_PFL_CLK_RSTLOOP_MASK; - writel(set, priv->regs + SPI_PFL_CLK_REG(plat->cs)); + writel(set, priv->regs + SPI_PFL_CLK_REG(plat->cs[0])); /* profile signal */ set = 0; @@ -192,29 +192,29 @@ static void bcm63xx_hsspi_activate_cs(struct bcm63xx_hsspi_priv *priv, if (speed > SPI_MAX_SYNC_CLOCK) set |= SPI_PFL_SIG_ASYNCIN_MASK; - clrsetbits_32(priv->regs + SPI_PFL_SIG_REG(plat->cs), clr, set); + clrsetbits_32(priv->regs + SPI_PFL_SIG_REG(plat->cs[0]), clr, set); /* global control */ set = 0; clr = 0; if (priv->xfer_mode == HSSPI_XFER_MODE_PREPEND) { - if (priv->cs_pols & BIT(plat->cs)) - set |= BIT(plat->cs); + if (priv->cs_pols & BIT(plat->cs[0])) + set |= BIT(plat->cs[0]); else - clr |= BIT(plat->cs); + clr |= BIT(plat->cs[0]); } else { /* invert cs polarity */ - if (priv->cs_pols & BIT(plat->cs)) - clr |= BIT(plat->cs); + if (priv->cs_pols & BIT(plat->cs[0])) + clr |= BIT(plat->cs[0]); else - set |= BIT(plat->cs); + set |= BIT(plat->cs[0]); /* invert dummy cs polarity */ - if (priv->cs_pols & BIT(!plat->cs)) - clr |= BIT(!plat->cs); + if (priv->cs_pols & BIT(!plat->cs[0])) + clr |= BIT(!plat->cs[0]); else - set |= BIT(!plat->cs); + set |= BIT(!plat->cs[0]); } clrsetbits_32(priv->regs + SPI_CTL_REG, clr, set); @@ -290,7 +290,7 @@ static int bcm63xx_hsspi_xfer_dummy_cs(struct udevice *dev, unsigned int data_by if (plat->mode & SPI_3WIRE) val |= SPI_PFL_MODE_3WIRE_MASK; - writel(val, priv->regs + SPI_PFL_MODE_REG(plat->cs)); + writel(val, priv->regs + SPI_PFL_MODE_REG(plat->cs[0])); /* transfer loop */ while (data_bytes > 0) { @@ -310,9 +310,9 @@ static int bcm63xx_hsspi_xfer_dummy_cs(struct udevice *dev, unsigned int data_by /* issue the transfer */ val = SPI_CMD_OP_START; - val |= (plat->cs << SPI_CMD_PFL_SHIFT) & + val |= (plat->cs[0] << SPI_CMD_PFL_SHIFT) & SPI_CMD_PFL_MASK; - val |= (!plat->cs << SPI_CMD_SLAVE_SHIFT) & + val |= (!plat->cs[0] << SPI_CMD_SLAVE_SHIFT) & SPI_CMD_SLAVE_MASK; writel(val, priv->regs + SPI_CMD_REG); @@ -450,7 +450,7 @@ static int bcm63xx_hsspi_xfer_prepend(struct udevice *dev, unsigned int data_byt } } val |= (priv->prepend_cnt << SPI_PFL_MODE_PREPCNT_SHIFT); - writel(val, priv->regs + SPI_PFL_MODE_REG(plat->cs)); + writel(val, priv->regs + SPI_PFL_MODE_REG(plat->cs[0])); /* set fifo operation */ val = opcode | (data_bytes & HSSPI_FIFO_OP_BYTES_MASK); @@ -459,9 +459,9 @@ static int bcm63xx_hsspi_xfer_prepend(struct udevice *dev, unsigned int data_byt /* issue the transfer */ val = SPI_CMD_OP_START; - val |= (plat->cs << SPI_CMD_PFL_SHIFT) & + val |= (plat->cs[0] << SPI_CMD_PFL_SHIFT) & SPI_CMD_PFL_MASK; - val |= (plat->cs << SPI_CMD_SLAVE_SHIFT) & + val |= (plat->cs[0] << SPI_CMD_SLAVE_SHIFT) & SPI_CMD_SLAVE_MASK; writel(val, priv->regs + SPI_CMD_REG); @@ -537,16 +537,16 @@ static int bcm63xx_hsspi_child_pre_probe(struct udevice *dev) struct spi_slave *slave = dev_get_parent_priv(dev); /* check cs */ - if (plat->cs >= priv->num_cs) { - printf("no cs %u\n", plat->cs); + if (plat->cs[0] >= priv->num_cs) { + printf("no cs %u\n", plat->cs[0]); return -ENODEV; } /* cs polarity */ if (plat->mode & SPI_CS_HIGH) - priv->cs_pols |= BIT(plat->cs); + priv->cs_pols |= BIT(plat->cs[0]); else - priv->cs_pols &= ~BIT(plat->cs); + priv->cs_pols &= ~BIT(plat->cs[0]); /* * set the max read/write size to make sure each xfer are within the |