diff options
Diffstat (limited to 'drivers/spi/cadence_ospi_versal.c')
| -rw-r--r-- | drivers/spi/cadence_ospi_versal.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/spi/cadence_ospi_versal.c b/drivers/spi/cadence_ospi_versal.c index fbeb0c6a85c..6dc6fbe5a5b 100644 --- a/drivers/spi/cadence_ospi_versal.c +++ b/drivers/spi/cadence_ospi_versal.c @@ -20,7 +20,7 @@ int cadence_qspi_apb_dma_read(struct cadence_spi_priv *priv, const struct spi_mem_op *op) { - u32 reg, ret, rx_rem, n_rx, bytes_to_dma, data; + u32 reg, ret, rx_rem, n_rx, bytes_to_dma, data, status; u8 opcode, addr_bytes, *rxbuf, dummy_cycles; n_rx = op->data.nbytes; @@ -87,6 +87,16 @@ int cadence_qspi_apb_dma_read(struct cadence_spi_priv *priv, CQSPI_REG_SIZE_ADDRESS_MASK; opcode = CMD_4BYTE_FAST_READ; + + /* Set up command opcode extension. */ + status = readl(priv->regbase + CQSPI_REG_CONFIG); + if (status & CQSPI_REG_CONFIG_DTR_PROTO) { + ret = cadence_qspi_setup_opcode_ext(priv, op, + CQSPI_REG_OP_EXT_STIG_LSB); + if (ret) + return ret; + } + dummy_cycles = 8; writel((dummy_cycles << CQSPI_REG_RD_INSTR_DUMMY_LSB) | opcode, priv->regbase + CQSPI_REG_RD_INSTR); |