int spi_xfer(struct spi_slave *slave, unsigned int bitlen,
const void *dout, void *din, unsigned long flags)
{
struct fsl_qspi *qspi = to_qspi_spi(slave);
u32 bytes = DIV_ROUND_UP(bitlen, 8);
static u32 pp_sfaddr;
u32 txbuf;
if (dout) {
memcpy(&txbuf, dout, 4);
qspi->cur_seqid = *(u8 *)dout;
if (flags == SPI_XFER_END) {
qspi->sf_addr = pp_sfaddr;
qspi_op_pp(qspi, (u32 *)dout, bytes);
return 0;
}
if (qspi->cur_seqid == OPCODE_FAST_READ) {
qspi->sf_addr = swab32(txbuf) & OFFSET_BITS_MASK;
} else if (qspi->cur_seqid == OPCODE_SE) {
qspi->sf_addr = swab32(txbuf) & OFFSET_BITS_MASK;
qspi_op_se(qspi);
} else if (qspi->cur_seqid == OPCODE_PP) {
pp_sfaddr = swab32(txbuf) & OFFSET_BITS_MASK;
}
}
if (din) {
if (qspi->cur_seqid == OPCODE_FAST_READ)
qspi_op_read(qspi, din, bytes);
else if (qspi->cur_seqid == OPCODE_RDID)
qspi_op_rdid(qspi, din, bytes);
else if (qspi->cur_seqid == OPCODE_RDSR)
qspi_op_rdsr(qspi, din);
}
return 0;
}
int qspi_xfer(struct fsl_qspi_priv *priv, unsigned int bitlen,
const void *dout, void *din, unsigned long flags)
{
u32 bytes = DIV_ROUND_UP(bitlen, 8);
static u32 wr_sfaddr;
u32 txbuf;
if (dout) {
if (flags & SPI_XFER_BEGIN) {
priv->cur_seqid = *(u8 *)dout;
memcpy(&txbuf, dout, 4);
}
if (flags == SPI_XFER_END) {
priv->sf_addr = wr_sfaddr;
qspi_op_write(priv, (u8 *)dout, bytes);
return 0;
}
if (priv->cur_seqid == QSPI_CMD_FAST_READ) {
priv->sf_addr = swab32(txbuf) & OFFSET_BITS_MASK;
} else if ((priv->cur_seqid == QSPI_CMD_SE) ||
(priv->cur_seqid == QSPI_CMD_BE_4K)) {
priv->sf_addr = swab32(txbuf) & OFFSET_BITS_MASK;
qspi_op_erase(priv);
} else if (priv->cur_seqid == QSPI_CMD_PP) {
wr_sfaddr = swab32(txbuf) & OFFSET_BITS_MASK;
} else if ((priv->cur_seqid == QSPI_CMD_BRWR) ||
(priv->cur_seqid == QSPI_CMD_WREAR)) {
#ifdef CONFIG_SPI_FLASH_BAR
wr_sfaddr = 0;
#endif
}
}
if (din) {
if (priv->cur_seqid == QSPI_CMD_FAST_READ) {
#ifdef CONFIG_SYS_FSL_QSPI_AHB
qspi_ahb_read(priv, din, bytes);
#else
qspi_op_read(priv, din, bytes);
#endif
} else if (priv->cur_seqid == QSPI_CMD_RDID)
qspi_op_rdid(priv, din, bytes);
else if (priv->cur_seqid == QSPI_CMD_RDSR)
qspi_op_rdsr(priv, din, bytes);
#ifdef CONFIG_SPI_FLASH_BAR
else if ((priv->cur_seqid == QSPI_CMD_BRRD) ||
(priv->cur_seqid == QSPI_CMD_RDEAR)) {
priv->sf_addr = 0;
qspi_op_rdbank(priv, din, bytes);
}
#endif
}
#ifdef CONFIG_SYS_FSL_QSPI_AHB
if ((priv->cur_seqid == QSPI_CMD_SE) ||
(priv->cur_seqid == QSPI_CMD_PP) ||
(priv->cur_seqid == QSPI_CMD_BE_4K) ||
(priv->cur_seqid == QSPI_CMD_WREAR) ||
(priv->cur_seqid == QSPI_CMD_BRWR))
qspi_ahb_invalid(priv);
#endif
return 0;
}