@@ -10,3 +10,6 @@ endif
## spi-nor to spi interface driver
obj-$(CONFIG_MTD_M25P80) += m25p80.o
+
+## spi-nor drivers
+obj-$(CONFIG_MTD_ZYNQ_QSPI) += zynq_qspi.o
new file mode 100644
@@ -0,0 +1,638 @@
+/*
+ * (C) Copyright 2016 Jagan Teki <jteki@openedev.com>
+ *
+ * Xilinx Zynq Quad-SPI(QSPI) controller driver (master mode only)
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <malloc.h>
+#include <mtd.h>
+#include <asm/io.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/spi-nor.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* zynq qspi register bit masks ZYNQ_QSPI_<REG>_<BIT>_MASK */
+#define ZYNQ_QSPI_CR_IFMODE_MASK BIT(31) /* Flash intrface mode*/
+#define ZYNQ_QSPI_CR_MSA_MASK BIT(15) /* Manual start enb */
+#define ZYNQ_QSPI_CR_MCS_MASK BIT(14) /* Manual chip select */
+#define ZYNQ_QSPI_CR_PCS_MASK BIT(10) /* Peri chip select */
+#define ZYNQ_QSPI_CR_FW_MASK GENMASK(7, 6) /* FIFO width */
+#define ZYNQ_QSPI_CR_SS_MASK GENMASK(13, 10) /* Slave Select */
+#define ZYNQ_QSPI_CR_BAUD_MASK GENMASK(5, 3) /* Baud rate div */
+#define ZYNQ_QSPI_CR_CPHA_MASK BIT(2) /* Clock phase */
+#define ZYNQ_QSPI_CR_CPOL_MASK BIT(1) /* Clock polarity */
+#define ZYNQ_QSPI_CR_MSTREN_MASK BIT(0) /* Mode select */
+#define ZYNQ_QSPI_IXR_RXNEMPTY_MASK BIT(4) /* RX_FIFO_not_empty */
+#define ZYNQ_QSPI_IXR_TXOW_MASK BIT(2) /* TX_FIFO_not_full */
+#define ZYNQ_QSPI_IXR_ALL_MASK GENMASK(6, 0) /* All IXR bits */
+#define ZYNQ_QSPI_ENR_SPI_EN_MASK BIT(0) /* SPI Enable */
+#define ZYNQ_QSPI_LQSPICFG_LQMODE_MASK BIT(31) /* Linear QSPI Mode */
+
+/* zynq qspi Transmit Data Register */
+#define ZYNQ_QSPI_TXD_00_00_OFFSET 0x1C /* Transmit 4-byte inst */
+#define ZYNQ_QSPI_TXD_00_01_OFFSET 0x80 /* Transmit 1-byte inst */
+#define ZYNQ_QSPI_TXD_00_10_OFFSET 0x84 /* Transmit 2-byte inst */
+#define ZYNQ_QSPI_TXD_00_11_OFFSET 0x88 /* Transmit 3-byte inst */
+
+#define ZYNQ_QSPI_XFER_BEGIN BIT(0)
+#define ZYNQ_QSPI_XFER_END BIT(1)
+#define ZYNQ_QSPI_TXFIFO_THRESHOLD 1 /* Tx FIFO threshold level*/
+#define ZYNQ_QSPI_RXFIFO_THRESHOLD 32 /* Rx FIFO threshold level */
+
+#define ZYNQ_QSPI_CR_BAUD_MAX 8 /* Baud rate divisor max val */
+#define ZYNQ_QSPI_CR_BAUD_SHIFT 3 /* Baud rate divisor shift */
+#define ZYNQ_QSPI_CR_SS_SHIFT 10 /* Slave select shift */
+#define ZYNQ_QSPI_MAX_CMDSZ 4 /* 1 byte opcode,3 byte addr */
+
+#define ZYNQ_QSPI_FIFO_DEPTH 63
+#ifndef CONFIG_SYS_ZYNQ_QSPI_WAIT
+#define CONFIG_SYS_ZYNQ_QSPI_WAIT CONFIG_SYS_HZ/100 /* 10 ms */
+#endif
+
+/* zynq qspi register set */
+struct zynq_qspi_regs {
+ u32 cr; /* 0x00 */
+ u32 isr; /* 0x04 */
+ u32 ier; /* 0x08 */
+ u32 idr; /* 0x0C */
+ u32 imr; /* 0x10 */
+ u32 enr; /* 0x14 */
+ u32 dr; /* 0x18 */
+ u32 txd0r; /* 0x1C */
+ u32 drxr; /* 0x20 */
+ u32 sicr; /* 0x24 */
+ u32 txftr; /* 0x28 */
+ u32 rxftr; /* 0x2C */
+ u32 gpior; /* 0x30 */
+ u32 reserved0[19];
+ u32 txd1r; /* 0x80 */
+ u32 txd2r; /* 0x84 */
+ u32 txd3r; /* 0x88 */
+ u32 reserved1[5];
+ u32 lqspicfg; /* 0xA0 */
+ u32 lqspists; /* 0xA4 */
+};
+
+/* zynq qspi platform data */
+struct zynq_qspi_platdata {
+ struct zynq_qspi_regs *regs;
+ u32 frequency; /* input frequency */
+ u32 speed_hz;
+};
+
+/* zynq qspi priv */
+struct zynq_qspi_priv {
+ struct zynq_qspi_regs *regs;
+ struct spi_nor spi_nor;
+ u8 cs;
+ u8 mode;
+ u8 fifo_depth;
+ u32 freq; /* required frequency */
+ u8 cmd[4]; /* 1 byte opcode + 3-byte address */
+ const void *tx_buf;
+ void *rx_buf;
+ unsigned len;
+ int bytes_to_transfer;
+ int bytes_to_receive;
+ unsigned int is_inst;
+ unsigned cs_change:1;
+};
+
+static void zynq_qspi_addr(u32 addr, u8 *cmd)
+{
+ /* opcode is in cmd[0] */
+ cmd[1] = addr >> 16;
+ cmd[2] = addr >> 8;
+ cmd[3] = addr >> 0;
+}
+
+/*
+ * zynq_qspi_read_data - Copy data to RX buffer
+ * @zqspi: Pointer to the zynq_qspi structure
+ * @data: The 32 bit variable where data is stored
+ * @size: Number of bytes to be copied from data to RX buffer
+ */
+static void zynq_qspi_read_data(struct zynq_qspi_priv *priv, u32 data, u8 size)
+{
+ u8 byte3;
+
+ debug("%s: data 0x%04x rx_buf addr: 0x%08x size %d\n", __func__ ,
+ data, (unsigned)(priv->rx_buf), size);
+
+ if (priv->rx_buf) {
+ switch (size) {
+ case 1:
+ *((u8 *)priv->rx_buf) = data;
+ priv->rx_buf += 1;
+ break;
+ case 2:
+ *((u16 *)priv->rx_buf) = data;
+ priv->rx_buf += 2;
+ break;
+ case 3:
+ *((u16 *)priv->rx_buf) = data;
+ priv->rx_buf += 2;
+ byte3 = (u8)(data >> 16);
+ *((u8 *)priv->rx_buf) = byte3;
+ priv->rx_buf += 1;
+ break;
+ case 4:
+ /* Can not assume word aligned buffer */
+ memcpy(priv->rx_buf, &data, size);
+ priv->rx_buf += 4;
+ break;
+ default:
+ /* This will never execute */
+ break;
+ }
+ }
+ priv->bytes_to_receive -= size;
+ if (priv->bytes_to_receive < 0)
+ priv->bytes_to_receive = 0;
+}
+
+/*
+ * zynq_qspi_write_data - Copy data from TX buffer
+ * @zqspi: Pointer to the zynq_qspi structure
+ * @data: Pointer to the 32 bit variable where data is to be copied
+ * @size: Number of bytes to be copied from TX buffer to data
+ */
+static void zynq_qspi_write_data(struct zynq_qspi_priv *priv,
+ u32 *data, u8 size)
+{
+ if (priv->tx_buf) {
+ switch (size) {
+ case 1:
+ *data = *((u8 *)priv->tx_buf);
+ priv->tx_buf += 1;
+ *data |= 0xFFFFFF00;
+ break;
+ case 2:
+ *data = *((u16 *)priv->tx_buf);
+ priv->tx_buf += 2;
+ *data |= 0xFFFF0000;
+ break;
+ case 3:
+ *data = *((u16 *)priv->tx_buf);
+ priv->tx_buf += 2;
+ *data |= (*((u8 *)priv->tx_buf) << 16);
+ priv->tx_buf += 1;
+ *data |= 0xFF000000;
+ break;
+ case 4:
+ /* Can not assume word aligned buffer */
+ memcpy(data, priv->tx_buf, size);
+ priv->tx_buf += 4;
+ break;
+ default:
+ /* This will never execute */
+ break;
+ }
+ } else {
+ *data = 0;
+ }
+
+ debug("%s: data 0x%08x tx_buf addr: 0x%08x size %d\n", __func__,
+ *data, (u32)priv->tx_buf, size);
+
+ priv->bytes_to_transfer -= size;
+ if (priv->bytes_to_transfer < 0)
+ priv->bytes_to_transfer = 0;
+}
+
+static void zynq_qspi_chipselect(struct zynq_qspi_priv *priv, int is_on)
+{
+ u32 confr;
+ struct zynq_qspi_regs *regs = priv->regs;
+
+ confr = readl(®s->cr);
+
+ if (is_on) {
+ /* Select the slave */
+ confr &= ~ZYNQ_QSPI_CR_SS_MASK;
+ confr |= (~(1 << priv->cs) << ZYNQ_QSPI_CR_SS_SHIFT) &
+ ZYNQ_QSPI_CR_SS_MASK;
+ } else
+ /* Deselect the slave */
+ confr |= ZYNQ_QSPI_CR_SS_MASK;
+
+ writel(confr, ®s->cr);
+}
+
+/*
+ * zynq_qspi_fill_tx_fifo - Fills the TX FIFO with as many bytes as possible
+ * @zqspi: Pointer to the zynq_qspi structure
+ */
+static void zynq_qspi_fill_tx_fifo(struct zynq_qspi_priv *priv, u32 size)
+{
+ u32 data = 0;
+ u32 fifocount = 0;
+ unsigned len, offset;
+ struct zynq_qspi_regs *regs = priv->regs;
+ static const unsigned offsets[4] = {
+ ZYNQ_QSPI_TXD_00_00_OFFSET, ZYNQ_QSPI_TXD_00_01_OFFSET,
+ ZYNQ_QSPI_TXD_00_10_OFFSET, ZYNQ_QSPI_TXD_00_11_OFFSET };
+
+ while ((fifocount < size) &&
+ (priv->bytes_to_transfer > 0)) {
+ if (priv->bytes_to_transfer >= 4) {
+ if (priv->tx_buf) {
+ memcpy(&data, priv->tx_buf, 4);
+ priv->tx_buf += 4;
+ } else {
+ data = 0;
+ }
+ writel(data, ®s->txd0r);
+ priv->bytes_to_transfer -= 4;
+ fifocount++;
+ } else {
+ /* Write TXD1, TXD2, TXD3 only if TxFIFO is empty. */
+ if (!(readl(®s->isr)
+ & ZYNQ_QSPI_IXR_TXOW_MASK) &&
+ !priv->rx_buf)
+ return;
+ len = priv->bytes_to_transfer;
+ zynq_qspi_write_data(priv, &data, len);
+ offset = (priv->rx_buf) ? offsets[0] : offsets[len];
+ writel(data, ®s->cr + (offset / 4));
+ }
+ }
+}
+
+/*
+ * zynq_qspi_irq_poll - Interrupt service routine of the QSPI controller
+ * @zqspi: Pointer to the zynq_qspi structure
+ *
+ * This function handles TX empty and Mode Fault interrupts only.
+ * On TX empty interrupt this function reads the received data from RX FIFO and
+ * fills the TX FIFO if there is any data remaining to be transferred.
+ * On Mode Fault interrupt this function indicates that transfer is completed,
+ * the SPI subsystem will identify the error as the remaining bytes to be
+ * transferred is non-zero.
+ *
+ * returns: 0 for poll timeout
+ * 1 transfer operation complete
+ */
+static int zynq_qspi_irq_poll(struct zynq_qspi_priv *priv)
+{
+ struct zynq_qspi_regs *regs = priv->regs;
+ u32 rxindex = 0;
+ u32 rxcount;
+ u32 status, timeout;
+
+ /* Poll until any of the interrupt status bits are set */
+ timeout = get_timer(0);
+ do {
+ status = readl(®s->isr);
+ } while ((status == 0) &&
+ (get_timer(timeout) < CONFIG_SYS_ZYNQ_QSPI_WAIT));
+
+ if (status == 0) {
+ printf("zynq_qspi_irq_poll: Timeout!\n");
+ return -ETIMEDOUT;
+ }
+
+ writel(status, ®s->isr);
+
+ /* Disable all interrupts */
+ writel(ZYNQ_QSPI_IXR_ALL_MASK, ®s->idr);
+ if ((status & ZYNQ_QSPI_IXR_TXOW_MASK) ||
+ (status & ZYNQ_QSPI_IXR_RXNEMPTY_MASK)) {
+ /*
+ * This bit is set when Tx FIFO has < THRESHOLD entries. We have
+ * the THRESHOLD value set to 1, so this bit indicates Tx FIFO
+ * is empty
+ */
+ rxcount = priv->bytes_to_receive - priv->bytes_to_transfer;
+ rxcount = (rxcount % 4) ? ((rxcount/4)+1) : (rxcount/4);
+ while ((rxindex < rxcount) &&
+ (rxindex < ZYNQ_QSPI_RXFIFO_THRESHOLD)) {
+ /* Read out the data from the RX FIFO */
+ u32 data;
+ data = readl(®s->drxr);
+
+ if (priv->bytes_to_receive >= 4) {
+ if (priv->rx_buf) {
+ memcpy(priv->rx_buf, &data, 4);
+ priv->rx_buf += 4;
+ }
+ priv->bytes_to_receive -= 4;
+ } else {
+ zynq_qspi_read_data(priv, data,
+ priv->bytes_to_receive);
+ }
+ rxindex++;
+ }
+
+ if (priv->bytes_to_transfer) {
+ /* There is more data to send */
+ zynq_qspi_fill_tx_fifo(priv,
+ ZYNQ_QSPI_RXFIFO_THRESHOLD);
+
+ writel(ZYNQ_QSPI_IXR_ALL_MASK, ®s->ier);
+ } else {
+ /*
+ * If transfer and receive is completed then only send
+ * complete signal
+ */
+ if (!priv->bytes_to_receive) {
+ /* return operation complete */
+ writel(ZYNQ_QSPI_IXR_ALL_MASK,
+ ®s->idr);
+ return 1;
+ }
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * zynq_qspi_start_transfer - Initiates the QSPI transfer
+ * @qspi: Pointer to the spi_device structure
+ * @transfer: Pointer to the spi_transfer structure which provide information
+ * about next transfer parameters
+ *
+ * This function fills the TX FIFO, starts the QSPI transfer, and waits for the
+ * transfer to be completed.
+ *
+ * returns: Number of bytes transferred in the last transfer
+ */
+static int zynq_qspi_start_transfer(struct zynq_qspi_priv *priv)
+{
+ u32 data = 0;
+ struct zynq_qspi_regs *regs = priv->regs;
+
+ debug("%s: qspi: 0x%08x transfer: 0x%08x len: %d\n", __func__,
+ (u32)priv, (u32)priv, priv->len);
+
+ priv->bytes_to_transfer = priv->len;
+ priv->bytes_to_receive = priv->len;
+
+ if (priv->len < 4)
+ zynq_qspi_fill_tx_fifo(priv, priv->len);
+ else
+ zynq_qspi_fill_tx_fifo(priv, priv->fifo_depth);
+
+ writel(ZYNQ_QSPI_IXR_ALL_MASK, ®s->ier);
+
+ /* wait for completion */
+ do {
+ data = zynq_qspi_irq_poll(priv);
+ } while (data == 0);
+
+ return (priv->len) - (priv->bytes_to_transfer);
+}
+
+static int zynq_qspi_transfer(struct zynq_qspi_priv *priv)
+{
+ unsigned cs_change = 1;
+ int status = 0;
+
+ while (1) {
+ /* Select the chip if required */
+ if (cs_change)
+ zynq_qspi_chipselect(priv, 1);
+
+ cs_change = priv->cs_change;
+
+ if (!priv->tx_buf && !priv->rx_buf && priv->len) {
+ status = -1;
+ break;
+ }
+
+ /* Request the transfer */
+ if (priv->len) {
+ status = zynq_qspi_start_transfer(priv);
+ priv->is_inst = 0;
+ }
+
+ if (status != priv->len) {
+ if (status > 0)
+ status = -EMSGSIZE;
+ debug("zynq_qspi_transfer:%d len:%d\n",
+ status, priv->len);
+ break;
+ }
+ status = 0;
+
+ if (cs_change)
+ /* Deselect the chip */
+ zynq_qspi_chipselect(priv, 0);
+
+ break;
+ }
+
+ return 0;
+}
+
+static int zynq_qspi_xfer(struct spi_nor *nor, unsigned int bitlen,
+ const void *dout, void *din, unsigned long flags)
+{
+ struct zynq_qspi_priv *priv = nor->priv;
+
+ priv->tx_buf = dout;
+ priv->rx_buf = din;
+ priv->len = bitlen / 8;
+
+ /*
+ * Festering sore.
+ * Assume that the beginning of a transfer with bits to
+ * transmit must contain a device command.
+ */
+ if (dout && flags & ZYNQ_QSPI_XFER_BEGIN)
+ priv->is_inst = 1;
+ else
+ priv->is_inst = 0;
+
+ if (flags & ZYNQ_QSPI_XFER_END)
+ priv->cs_change = 1;
+ else
+ priv->cs_change = 0;
+
+ zynq_qspi_transfer(priv);
+
+ return 0;
+}
+
+static int zynq_qspi_tx_then_rx(struct spi_nor *nor, const u8 *opcode,
+ size_t n_opcode, const u8 *txbuf,
+ u8 *rxbuf, size_t n_buf)
+{
+ struct zynq_qspi_priv *priv = nor->priv;
+ struct zynq_qspi_regs *regs = priv->regs;
+ unsigned long flags = ZYNQ_QSPI_XFER_BEGIN;
+ int ret;
+
+ /* enable spi */
+ writel(ZYNQ_QSPI_ENR_SPI_EN_MASK, ®s->enr);
+
+ if (n_buf == 0)
+ flags |= ZYNQ_QSPI_XFER_END;
+
+ ret = zynq_qspi_xfer(nor, n_opcode * 8, opcode, NULL, flags);
+ if (ret) {
+ debug("%s: failed to send command (%zu bytes): %d\n",
+ __func__, n_opcode, ret);
+ } else if (n_buf != 0) {
+ ret = zynq_qspi_xfer(nor, n_buf * 8, txbuf, rxbuf,
+ ZYNQ_QSPI_XFER_END);
+ if (ret)
+ debug("%s: failed to transfer %zu bytes of data: %d\n",
+ __func__, n_buf, ret);
+ }
+
+ /* disable spi */
+ writel(~ZYNQ_QSPI_ENR_SPI_EN_MASK, ®s->enr);
+
+ return ret;
+}
+
+static int zynq_qspi_read_reg(struct spi_nor *nor, u8 opcode, u8 *val, int len)
+{
+ return zynq_qspi_tx_then_rx(nor, &opcode, 1, NULL, val, len);
+}
+
+static int zynq_qspi_write_reg(struct spi_nor *nor, u8 opcode, u8 *buf, int len)
+{
+ return zynq_qspi_tx_then_rx(nor, &opcode, 1, buf, NULL, len);
+}
+
+static int zynq_qspi_read(struct spi_nor *nor, loff_t from, size_t len,
+ u_char *buf)
+{
+ struct zynq_qspi_priv *priv = nor->priv;
+ unsigned int cmd_sz = sizeof(priv->cmd) + (nor->read_dummy / 8);
+
+ priv->cmd[0] = nor->program_opcode;
+ zynq_qspi_addr(from, priv->cmd);
+
+ return zynq_qspi_tx_then_rx(nor, priv->cmd, cmd_sz, NULL, buf, len);
+}
+
+static int zynq_qspi_write(struct spi_nor *nor, loff_t to, size_t len,
+ const u_char *buf)
+{
+ struct zynq_qspi_priv *priv = nor->priv;
+
+ priv->cmd[0] = nor->program_opcode;
+ if (buf == NULL)
+ priv->cmd[0] = nor->erase_opcode;
+
+ zynq_qspi_addr(to, priv->cmd);
+
+ return zynq_qspi_tx_then_rx(nor, priv->cmd, sizeof(priv->cmd),
+ buf, NULL, len);
+}
+
+static void zynq_qspi_init_hw(struct zynq_qspi_priv *priv)
+{
+ struct zynq_qspi_regs *regs = priv->regs;
+ u32 confr;
+
+ /* disable QSPI */
+ writel(~ZYNQ_QSPI_ENR_SPI_EN_MASK, ®s->enr);
+
+ /* disable Interrupts */
+ writel(ZYNQ_QSPI_IXR_ALL_MASK, ®s->idr);
+
+ /* dlear the TX and RX threshold reg */
+ writel(ZYNQ_QSPI_TXFIFO_THRESHOLD, ®s->txftr);
+ writel(ZYNQ_QSPI_RXFIFO_THRESHOLD, ®s->rxftr);
+
+ /* clear the RX FIFO */
+ while (readl(®s->isr) & ZYNQ_QSPI_IXR_RXNEMPTY_MASK)
+ readl(®s->drxr);
+
+ /* clear Interrupts */
+ writel(ZYNQ_QSPI_IXR_ALL_MASK, ®s->isr);
+
+ /* manual slave select and Auto start */
+ confr = readl(®s->cr);
+ confr &= ~ZYNQ_QSPI_CR_MSA_MASK;
+ confr |= ZYNQ_QSPI_CR_IFMODE_MASK | ZYNQ_QSPI_CR_MCS_MASK |
+ ZYNQ_QSPI_CR_PCS_MASK | ZYNQ_QSPI_CR_FW_MASK |
+ ZYNQ_QSPI_CR_MSTREN_MASK;
+ writel(confr, ®s->cr);
+
+ /* enable SPI */
+ writel(ZYNQ_QSPI_ENR_SPI_EN_MASK, ®s->enr);
+}
+
+static int zynq_qspi_ofdata_to_platdata(struct udevice *bus)
+{
+ struct zynq_qspi_platdata *plat = bus->platdata;
+ const void *blob = gd->fdt_blob;
+ int node = bus->of_offset;
+
+ plat->regs = (struct zynq_qspi_regs *)fdtdec_get_addr(blob,
+ node, "reg");
+
+ /* FIXME: Use 166MHz as a suitable default */
+ plat->frequency = fdtdec_get_int(blob, node, "spi-max-frequency",
+ 166666666);
+ plat->speed_hz = plat->frequency / 2;
+
+ debug("%s: regs=%p max-frequency=%d\n", __func__,
+ plat->regs, plat->frequency);
+
+ return 0;
+}
+
+static int zynq_qspi_probe(struct udevice *dev)
+{
+ struct mtd_info *mtd = mtd_get_info(dev);
+ struct zynq_qspi_platdata *plat = dev_get_platdata(dev);
+ struct zynq_qspi_priv *priv = dev_get_priv(dev);
+ struct spi_nor *nor;
+ int ret;
+
+ nor = &priv->spi_nor;
+
+ nor->priv = priv;
+ mtd->priv = nor;
+ nor->dev = dev;
+
+ priv->regs = plat->regs;
+ priv->fifo_depth = ZYNQ_QSPI_FIFO_DEPTH;
+
+ /* install the hooks */
+ nor->read = zynq_qspi_read;
+ nor->write = zynq_qspi_write;
+ nor->read_reg = zynq_qspi_read_reg;
+ nor->write_reg = zynq_qspi_write_reg;
+
+ /* init the zynq spi hw */
+ zynq_qspi_init_hw(priv);
+
+ ret = spi_nor_scan(dev);
+ if (ret)
+ return -EINVAL;
+
+ ret = add_mtd_device_dm(dev);
+ if (ret)
+ return ret;
+
+ return ret;
+}
+
+static const struct udevice_id zynq_qspi_ids[] = {
+ { .compatible = "xlnx,zynq-qspi-1.0" },
+ { }
+};
+
+U_BOOT_DRIVER(zynq_qspi) = {
+ .name = "zynq_qspi",
+ .id = UCLASS_MTD,
+ .of_match = zynq_qspi_ids,
+ .ofdata_to_platdata = zynq_qspi_ofdata_to_platdata,
+ .platdata_auto_alloc_size = sizeof(struct zynq_qspi_platdata),
+ .priv_auto_alloc_size = sizeof(struct zynq_qspi_priv),
+ .probe = zynq_qspi_probe,
+};