spi: cadence_quadspi: Enable QUAD mode based on DT data

Instead of relying on CONFIG_SPI_FLASH_QUAD to be defined to enable QUAD
mode, make use of mode_rx field of dm_spi_slave_platdata to determine
whether to enable or disable QUAD mode. This is necessary to support
muliple SPI controllers where one of them may not support QUAD mode.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Reviewed-by: Jagan Teki <jteki@openedev.com>

diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c
index 4f7fd52..a5244ff 100644 (file)
--- a/drivers/spi/cadence_qspi.c
+++ b/drivers/spi/cadence_qspi.c
@@ -191,6 +191,7 @@ static int cadence_spi_xfer(struct udevice *dev, unsigned int bitlen,
        struct udevice *bus = dev->parent;
        struct cadence_spi_platdata *plat = bus->platdata;
        struct cadence_spi_priv *priv = dev_get_priv(bus);
+       struct dm_spi_slave_platdata *dm_plat = dev_get_parent_platdata(dev);
        void *base = priv->regbase;
        u8 *cmd_buf = priv->cmd_buf;
        size_t data_bytes;
@@ -250,7 +251,7 @@ static int cadence_spi_xfer(struct udevice *dev, unsigned int bitlen,
                break;
                case CQSPI_INDIRECT_READ:
                        err = cadence_qspi_apb_indirect_read_setup(plat,
-                               priv->cmd_len, cmd_buf);
+                               priv->cmd_len, dm_plat->mode_rx, cmd_buf);
                        if (!err) {
                                err = cadence_qspi_apb_indirect_read_execute
                                (plat, data_bytes, din);

diff --git a/drivers/spi/cadence_qspi.h b/drivers/spi/cadence_qspi.h
index 2912e36..a849f7b 100644 (file)
--- a/drivers/spi/cadence_qspi.h
+++ b/drivers/spi/cadence_qspi.h
@@ -53,7 +53,7 @@ int cadence_qspi_apb_command_write(void *reg_base_addr,
        unsigned int txlen,  const u8 *txbuf);
 
 int cadence_qspi_apb_indirect_read_setup(struct cadence_spi_platdata *plat,
-       unsigned int cmdlen, const u8 *cmdbuf);
+       unsigned int cmdlen, unsigned int rx_width, const u8 *cmdbuf);
 int cadence_qspi_apb_indirect_read_execute(struct cadence_spi_platdata *plat,
        unsigned int rxlen, u8 *rxbuf);
 int cadence_qspi_apb_indirect_write_setup(struct cadence_spi_platdata *plat,

diff --git a/drivers/spi/cadence_qspi_apb.c b/drivers/spi/cadence_qspi_apb.c
index a8cc23f..1a35d55 100644 (file)
--- a/drivers/spi/cadence_qspi_apb.c
+++ b/drivers/spi/cadence_qspi_apb.c
@@ -29,6 +29,7 @@
 #include <asm/io.h>
 #include <asm/errno.h>
 #include <wait_bit.h>
+#include <spi.h>
 #include "cadence_qspi.h"
 
 #define CQSPI_REG_POLL_US                      (1) /* 1us */
@@ -548,7 +549,7 @@ int cadence_qspi_apb_command_write(void *reg_base, unsigned int cmdlen,
 
 /* Opcode + Address (3/4 bytes) + dummy bytes (0-4 bytes) */
 int cadence_qspi_apb_indirect_read_setup(struct cadence_spi_platdata *plat,
-       unsigned int cmdlen, const u8 *cmdbuf)
+       unsigned int cmdlen, unsigned int rx_width, const u8 *cmdbuf)
 {
        unsigned int reg;
        unsigned int rd_reg;
@@ -578,10 +579,9 @@ int cadence_qspi_apb_indirect_read_setup(struct cadence_spi_platdata *plat,
        /* Configure the opcode */
        rd_reg = cmdbuf[0] << CQSPI_REG_RD_INSTR_OPCODE_LSB;
 
-#if (CONFIG_SPI_FLASH_QUAD == 1)
-       /* Instruction and address at DQ0, data at DQ0-3. */
-       rd_reg |= CQSPI_INST_TYPE_QUAD << CQSPI_REG_RD_INSTR_TYPE_DATA_LSB;
-#endif
+       if (rx_width & SPI_RX_QUAD)
+               /* Instruction and address at DQ0, data at DQ0-3. */
+               rd_reg |= CQSPI_INST_TYPE_QUAD << CQSPI_REG_RD_INSTR_TYPE_DATA_LSB;
 
        /* Get address */
        addr_value = cadence_qspi_apb_cmd2addr(&cmdbuf[1], addr_bytes);