[U-Boot] [PATCH v7 46/87] mtd: spi-nor: Copy sandbox

Jagan Teki jteki at openedev.com
Tue Mar 22 08:37:58 CET 2016


Copy sandbox.c from drivers/mtd/spi to spi-nor,
more changes will added on future patches.

Cc: Simon Glass <sjg at chromium.org>
Cc: Bin Meng <bmeng.cn at gmail.com>
Signed-off-by: Jagan Teki <jteki at openedev.com>
---
 drivers/mtd/spi-nor/sandbox.c | 703 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 703 insertions(+)
 create mode 100644 drivers/mtd/spi-nor/sandbox.c

diff --git a/drivers/mtd/spi-nor/sandbox.c b/drivers/mtd/spi-nor/sandbox.c
new file mode 100644
index 0000000..53470b9
--- /dev/null
+++ b/drivers/mtd/spi-nor/sandbox.c
@@ -0,0 +1,703 @@
+/*
+ * Simulate a SPI flash
+ *
+ * Copyright (c) 2011-2013 The Chromium OS Authors.
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <malloc.h>
+#include <spi.h>
+#include <os.h>
+
+#include <spi_flash.h>
+#include "sf_internal.h"
+
+#include <asm/getopt.h>
+#include <asm/spi.h>
+#include <asm/state.h>
+#include <dm/device-internal.h>
+#include <dm/lists.h>
+#include <dm/uclass-internal.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * The different states that our SPI flash transitions between.
+ * We need to keep track of this across multiple xfer calls since
+ * the SPI bus could possibly call down into us multiple times.
+ */
+enum sandbox_sf_state {
+	SF_CMD,   /* default state -- we're awaiting a command */
+	SF_ID,    /* read the flash's (jedec) ID code */
+	SF_ADDR,  /* processing the offset in the flash to read/etc... */
+	SF_READ,  /* reading data from the flash */
+	SF_WRITE, /* writing data to the flash, i.e. page programming */
+	SF_ERASE, /* erase the flash */
+	SF_READ_STATUS, /* read the flash's status register */
+	SF_READ_STATUS1, /* read the flash's status register upper 8 bits*/
+	SF_WRITE_STATUS, /* write the flash's status register */
+};
+
+static const char *sandbox_sf_state_name(enum sandbox_sf_state state)
+{
+	static const char * const states[] = {
+		"CMD", "ID", "ADDR", "READ", "WRITE", "ERASE", "READ_STATUS",
+		"READ_STATUS1", "WRITE_STATUS",
+	};
+	return states[state];
+}
+
+/* Bits for the status register */
+#define STAT_WIP	(1 << 0)
+#define STAT_WEL	(1 << 1)
+
+/* Assume all SPI flashes have 3 byte addresses since they do atm */
+#define SF_ADDR_LEN	3
+
+#define IDCODE_LEN 3
+
+/* Used to quickly bulk erase backing store */
+static u8 sandbox_sf_0xff[0x1000];
+
+/* Internal state data for each SPI flash */
+struct sandbox_spi_flash {
+	unsigned int cs;	/* Chip select we are attached to */
+	/*
+	 * As we receive data over the SPI bus, our flash transitions
+	 * between states.  For example, we start off in the SF_CMD
+	 * state where the first byte tells us what operation to perform
+	 * (such as read or write the flash).  But the operation itself
+	 * can go through a few states such as first reading in the
+	 * offset in the flash to perform the requested operation.
+	 * Thus "state" stores the exact state that our machine is in
+	 * while "cmd" stores the overall command we're processing.
+	 */
+	enum sandbox_sf_state state;
+	uint cmd;
+	/* Erase size of current erase command */
+	uint erase_size;
+	/* Current position in the flash; used when reading/writing/etc... */
+	uint off;
+	/* How many address bytes we've consumed */
+	uint addr_bytes, pad_addr_bytes;
+	/* The current flash status (see STAT_XXX defines above) */
+	u16 status;
+	/* Data describing the flash we're emulating */
+	const struct spi_flash_params *data;
+	/* The file on disk to serv up data from */
+	int fd;
+};
+
+struct sandbox_spi_flash_plat_data {
+	const char *filename;
+	const char *device_name;
+	int bus;
+	int cs;
+};
+
+/**
+ * This is a very strange probe function. If it has platform data (which may
+ * have come from the device tree) then this function gets the filename and
+ * device type from there. Failing that it looks at the command line
+ * parameter.
+ */
+static int sandbox_sf_probe(struct udevice *dev)
+{
+	/* spec = idcode:file */
+	struct sandbox_spi_flash *sbsf = dev_get_priv(dev);
+	const char *file;
+	size_t len, idname_len;
+	const struct spi_flash_params *data;
+	struct sandbox_spi_flash_plat_data *pdata = dev_get_platdata(dev);
+	struct sandbox_state *state = state_get_current();
+	struct udevice *bus = dev->parent;
+	const char *spec = NULL;
+	int ret = 0;
+	int cs = -1;
+	int i;
+
+	debug("%s: bus %d, looking for emul=%p: ", __func__, bus->seq, dev);
+	if (bus->seq >= 0 && bus->seq < CONFIG_SANDBOX_SPI_MAX_BUS) {
+		for (i = 0; i < CONFIG_SANDBOX_SPI_MAX_CS; i++) {
+			if (state->spi[bus->seq][i].emul == dev)
+				cs = i;
+		}
+	}
+	if (cs == -1) {
+		printf("Error: Unknown chip select for device '%s'\n",
+		       dev->name);
+		return -EINVAL;
+	}
+	debug("found at cs %d\n", cs);
+
+	if (!pdata->filename) {
+		struct sandbox_state *state = state_get_current();
+
+		assert(bus->seq != -1);
+		if (bus->seq < CONFIG_SANDBOX_SPI_MAX_BUS)
+			spec = state->spi[bus->seq][cs].spec;
+		if (!spec) {
+			debug("%s:  No spec found for bus %d, cs %d\n",
+			      __func__, bus->seq, cs);
+			ret = -ENOENT;
+			goto error;
+		}
+
+		file = strchr(spec, ':');
+		if (!file) {
+			printf("%s: unable to parse file\n", __func__);
+			ret = -EINVAL;
+			goto error;
+		}
+		idname_len = file - spec;
+		pdata->filename = file + 1;
+		pdata->device_name = spec;
+		++file;
+	} else {
+		spec = strchr(pdata->device_name, ',');
+		if (spec)
+			spec++;
+		else
+			spec = pdata->device_name;
+		idname_len = strlen(spec);
+	}
+	debug("%s: device='%s'\n", __func__, spec);
+
+	for (data = spi_flash_params_table; data->name; data++) {
+		len = strlen(data->name);
+		if (idname_len != len)
+			continue;
+		if (!strncasecmp(spec, data->name, len))
+			break;
+	}
+	if (!data->name) {
+		printf("%s: unknown flash '%*s'\n", __func__, (int)idname_len,
+		       spec);
+		ret = -EINVAL;
+		goto error;
+	}
+
+	if (sandbox_sf_0xff[0] == 0x00)
+		memset(sandbox_sf_0xff, 0xff, sizeof(sandbox_sf_0xff));
+
+	sbsf->fd = os_open(pdata->filename, 02);
+	if (sbsf->fd == -1) {
+		printf("%s: unable to open file '%s'\n", __func__,
+		       pdata->filename);
+		ret = -EIO;
+		goto error;
+	}
+
+	sbsf->data = data;
+	sbsf->cs = cs;
+
+	return 0;
+
+ error:
+	debug("%s: Got error %d\n", __func__, ret);
+	return ret;
+}
+
+static int sandbox_sf_remove(struct udevice *dev)
+{
+	struct sandbox_spi_flash *sbsf = dev_get_priv(dev);
+
+	os_close(sbsf->fd);
+
+	return 0;
+}
+
+static void sandbox_sf_cs_activate(struct udevice *dev)
+{
+	struct sandbox_spi_flash *sbsf = dev_get_priv(dev);
+
+	debug("sandbox_sf: CS activated; state is fresh!\n");
+
+	/* CS is asserted, so reset state */
+	sbsf->off = 0;
+	sbsf->addr_bytes = 0;
+	sbsf->pad_addr_bytes = 0;
+	sbsf->state = SF_CMD;
+	sbsf->cmd = SF_CMD;
+}
+
+static void sandbox_sf_cs_deactivate(struct udevice *dev)
+{
+	debug("sandbox_sf: CS deactivated; cmd done processing!\n");
+}
+
+/*
+ * There are times when the data lines are allowed to tristate.  What
+ * is actually sensed on the line depends on the hardware.  It could
+ * always be 0xFF/0x00 (if there are pull ups/downs), or things could
+ * float and so we'd get garbage back.  This func encapsulates that
+ * scenario so we can worry about the details here.
+ */
+static void sandbox_spi_tristate(u8 *buf, uint len)
+{
+	/* XXX: make this into a user config option ? */
+	memset(buf, 0xff, len);
+}
+
+/* Figure out what command this stream is telling us to do */
+static int sandbox_sf_process_cmd(struct sandbox_spi_flash *sbsf, const u8 *rx,
+				  u8 *tx)
+{
+	enum sandbox_sf_state oldstate = sbsf->state;
+
+	/* We need to output a byte for the cmd byte we just ate */
+	if (tx)
+		sandbox_spi_tristate(tx, 1);
+
+	sbsf->cmd = rx[0];
+	switch (sbsf->cmd) {
+	case CMD_READ_ID:
+		sbsf->state = SF_ID;
+		sbsf->cmd = SF_ID;
+		break;
+	case CMD_READ_ARRAY_FAST:
+		sbsf->pad_addr_bytes = 1;
+	case CMD_READ_ARRAY_SLOW:
+	case CMD_PAGE_PROGRAM:
+		sbsf->state = SF_ADDR;
+		break;
+	case CMD_WRITE_DISABLE:
+		debug(" write disabled\n");
+		sbsf->status &= ~STAT_WEL;
+		break;
+	case CMD_READ_STATUS:
+		sbsf->state = SF_READ_STATUS;
+		break;
+	case CMD_READ_STATUS1:
+		sbsf->state = SF_READ_STATUS1;
+		break;
+	case CMD_WRITE_ENABLE:
+		debug(" write enabled\n");
+		sbsf->status |= STAT_WEL;
+		break;
+	case CMD_WRITE_STATUS:
+		sbsf->state = SF_WRITE_STATUS;
+		break;
+	default: {
+		int flags = sbsf->data->flags;
+
+		/* we only support erase here */
+		if (sbsf->cmd == CMD_ERASE_CHIP) {
+			sbsf->erase_size = sbsf->data->sector_size *
+				sbsf->data->nr_sectors;
+		} else if (sbsf->cmd == CMD_ERASE_4K && (flags & SECT_4K)) {
+			sbsf->erase_size = 4 << 10;
+		} else if (sbsf->cmd == CMD_ERASE_32K && (flags & SECT_32K)) {
+			sbsf->erase_size = 32 << 10;
+		} else if (sbsf->cmd == CMD_ERASE_64K &&
+			   !(flags & (SECT_4K | SECT_32K))) {
+			sbsf->erase_size = 64 << 10;
+		} else {
+			debug(" cmd unknown: %#x\n", sbsf->cmd);
+			return -EIO;
+		}
+		sbsf->state = SF_ADDR;
+		break;
+	}
+	}
+
+	if (oldstate != sbsf->state)
+		debug(" cmd: transition to %s state\n",
+		      sandbox_sf_state_name(sbsf->state));
+
+	return 0;
+}
+
+int sandbox_erase_part(struct sandbox_spi_flash *sbsf, int size)
+{
+	int todo;
+	int ret;
+
+	while (size > 0) {
+		todo = min(size, (int)sizeof(sandbox_sf_0xff));
+		ret = os_write(sbsf->fd, sandbox_sf_0xff, todo);
+		if (ret != todo)
+			return ret;
+		size -= todo;
+	}
+
+	return 0;
+}
+
+static int sandbox_sf_xfer(struct udevice *dev, unsigned int bitlen,
+			   const void *rxp, void *txp, unsigned long flags)
+{
+	struct sandbox_spi_flash *sbsf = dev_get_priv(dev);
+	const uint8_t *rx = rxp;
+	uint8_t *tx = txp;
+	uint cnt, pos = 0;
+	int bytes = bitlen / 8;
+	int ret;
+
+	debug("sandbox_sf: state:%x(%s) bytes:%u\n", sbsf->state,
+	      sandbox_sf_state_name(sbsf->state), bytes);
+
+	if ((flags & SPI_XFER_BEGIN))
+		sandbox_sf_cs_activate(dev);
+
+	if (sbsf->state == SF_CMD) {
+		/* Figure out the initial state */
+		ret = sandbox_sf_process_cmd(sbsf, rx, tx);
+		if (ret)
+			return ret;
+		++pos;
+	}
+
+	/* Process the remaining data */
+	while (pos < bytes) {
+		switch (sbsf->state) {
+		case SF_ID: {
+			u8 id;
+
+			debug(" id: off:%u tx:", sbsf->off);
+			if (sbsf->off < IDCODE_LEN) {
+				/* Extract correct byte from ID 0x00aabbcc */
+				id = sbsf->data->jedec >>
+					(8 * (IDCODE_LEN - 1 - sbsf->off));
+			} else {
+				id = 0;
+			}
+			debug("%d %02x\n", sbsf->off, id);
+			tx[pos++] = id;
+			++sbsf->off;
+			break;
+		}
+		case SF_ADDR:
+			debug(" addr: bytes:%u rx:%02x ", sbsf->addr_bytes,
+			      rx[pos]);
+
+			if (sbsf->addr_bytes++ < SF_ADDR_LEN)
+				sbsf->off = (sbsf->off << 8) | rx[pos];
+			debug("addr:%06x\n", sbsf->off);
+
+			if (tx)
+				sandbox_spi_tristate(&tx[pos], 1);
+			pos++;
+
+			/* See if we're done processing */
+			if (sbsf->addr_bytes <
+					SF_ADDR_LEN + sbsf->pad_addr_bytes)
+				break;
+
+			/* Next state! */
+			if (os_lseek(sbsf->fd, sbsf->off, OS_SEEK_SET) < 0) {
+				puts("sandbox_sf: os_lseek() failed");
+				return -EIO;
+			}
+			switch (sbsf->cmd) {
+			case CMD_READ_ARRAY_FAST:
+			case CMD_READ_ARRAY_SLOW:
+				sbsf->state = SF_READ;
+				break;
+			case CMD_PAGE_PROGRAM:
+				sbsf->state = SF_WRITE;
+				break;
+			default:
+				/* assume erase state ... */
+				sbsf->state = SF_ERASE;
+				goto case_sf_erase;
+			}
+			debug(" cmd: transition to %s state\n",
+			      sandbox_sf_state_name(sbsf->state));
+			break;
+		case SF_READ:
+			/*
+			 * XXX: need to handle exotic behavior:
+			 *      - reading past end of device
+			 */
+
+			cnt = bytes - pos;
+			debug(" tx: read(%u)\n", cnt);
+			assert(tx);
+			ret = os_read(sbsf->fd, tx + pos, cnt);
+			if (ret < 0) {
+				puts("sandbox_sf: os_read() failed\n");
+				return -EIO;
+			}
+			pos += ret;
+			break;
+		case SF_READ_STATUS:
+			debug(" read status: %#x\n", sbsf->status);
+			cnt = bytes - pos;
+			memset(tx + pos, sbsf->status, cnt);
+			pos += cnt;
+			break;
+		case SF_READ_STATUS1:
+			debug(" read status: %#x\n", sbsf->status);
+			cnt = bytes - pos;
+			memset(tx + pos, sbsf->status >> 8, cnt);
+			pos += cnt;
+			break;
+		case SF_WRITE_STATUS:
+			debug(" write status: %#x (ignored)\n", rx[pos]);
+			pos = bytes;
+			break;
+		case SF_WRITE:
+			/*
+			 * XXX: need to handle exotic behavior:
+			 *      - unaligned addresses
+			 *      - more than a page (256) worth of data
+			 *      - reading past end of device
+			 */
+			if (!(sbsf->status & STAT_WEL)) {
+				puts("sandbox_sf: write enable not set before write\n");
+				goto done;
+			}
+
+			cnt = bytes - pos;
+			debug(" rx: write(%u)\n", cnt);
+			if (tx)
+				sandbox_spi_tristate(&tx[pos], cnt);
+			ret = os_write(sbsf->fd, rx + pos, cnt);
+			if (ret < 0) {
+				puts("sandbox_spi: os_write() failed\n");
+				return -EIO;
+			}
+			pos += ret;
+			sbsf->status &= ~STAT_WEL;
+			break;
+		case SF_ERASE:
+ case_sf_erase: {
+			if (!(sbsf->status & STAT_WEL)) {
+				puts("sandbox_sf: write enable not set before erase\n");
+				goto done;
+			}
+
+			/* verify address is aligned */
+			if (sbsf->off & (sbsf->erase_size - 1)) {
+				debug(" sector erase: cmd:%#x needs align:%#x, but we got %#x\n",
+				      sbsf->cmd, sbsf->erase_size,
+				      sbsf->off);
+				sbsf->status &= ~STAT_WEL;
+				goto done;
+			}
+
+			debug(" sector erase addr: %u, size: %u\n", sbsf->off,
+			      sbsf->erase_size);
+
+			cnt = bytes - pos;
+			if (tx)
+				sandbox_spi_tristate(&tx[pos], cnt);
+			pos += cnt;
+
+			/*
+			 * TODO(vapier at gentoo.org): latch WIP in status, and
+			 * delay before clearing it ?
+			 */
+			ret = sandbox_erase_part(sbsf, sbsf->erase_size);
+			sbsf->status &= ~STAT_WEL;
+			if (ret) {
+				debug("sandbox_sf: Erase failed\n");
+				goto done;
+			}
+			goto done;
+		}
+		default:
+			debug(" ??? no idea what to do ???\n");
+			goto done;
+		}
+	}
+
+ done:
+	if (flags & SPI_XFER_END)
+		sandbox_sf_cs_deactivate(dev);
+	return pos == bytes ? 0 : -EIO;
+}
+
+int sandbox_sf_ofdata_to_platdata(struct udevice *dev)
+{
+	struct sandbox_spi_flash_plat_data *pdata = dev_get_platdata(dev);
+	const void *blob = gd->fdt_blob;
+	int node = dev->of_offset;
+
+	pdata->filename = fdt_getprop(blob, node, "sandbox,filename", NULL);
+	pdata->device_name = fdt_getprop(blob, node, "compatible", NULL);
+	if (!pdata->filename || !pdata->device_name) {
+		debug("%s: Missing properties, filename=%s, device_name=%s\n",
+		      __func__, pdata->filename, pdata->device_name);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct dm_spi_emul_ops sandbox_sf_emul_ops = {
+	.xfer          = sandbox_sf_xfer,
+};
+
+#ifdef CONFIG_SPI_FLASH
+static int sandbox_cmdline_cb_spi_sf(struct sandbox_state *state,
+				     const char *arg)
+{
+	unsigned long bus, cs;
+	const char *spec = sandbox_spi_parse_spec(arg, &bus, &cs);
+
+	if (!spec)
+		return 1;
+
+	/*
+	 * It is safe to not make a copy of 'spec' because it comes from the
+	 * command line.
+	 *
+	 * TODO(sjg at chromium.org): It would be nice if we could parse the
+	 * spec here, but the problem is that no U-Boot init has been done
+	 * yet. Perhaps we can figure something out.
+	 */
+	state->spi[bus][cs].spec = spec;
+	debug("%s:  Setting up spec '%s' for bus %ld, cs %ld\n", __func__,
+	      spec, bus, cs);
+
+	return 0;
+}
+SANDBOX_CMDLINE_OPT(spi_sf, 1, "connect a SPI flash: <bus>:<cs>:<id>:<file>");
+
+int sandbox_sf_bind_emul(struct sandbox_state *state, int busnum, int cs,
+			 struct udevice *bus, int of_offset, const char *spec)
+{
+	struct udevice *emul;
+	char name[20], *str;
+	struct driver *drv;
+	int ret;
+
+	/* now the emulator */
+	strncpy(name, spec, sizeof(name) - 6);
+	name[sizeof(name) - 6] = '\0';
+	strcat(name, "-emul");
+	str = strdup(name);
+	if (!str)
+		return -ENOMEM;
+	drv = lists_driver_lookup_name("sandbox_sf_emul");
+	if (!drv) {
+		puts("Cannot find sandbox_sf_emul driver\n");
+		return -ENOENT;
+	}
+	ret = device_bind(bus, drv, str, NULL, of_offset, &emul);
+	if (ret) {
+		printf("Cannot create emul device for spec '%s' (err=%d)\n",
+		       spec, ret);
+		return ret;
+	}
+	state->spi[busnum][cs].emul = emul;
+
+	return 0;
+}
+
+void sandbox_sf_unbind_emul(struct sandbox_state *state, int busnum, int cs)
+{
+	struct udevice *dev;
+
+	dev = state->spi[busnum][cs].emul;
+	device_remove(dev);
+	device_unbind(dev);
+	state->spi[busnum][cs].emul = NULL;
+}
+
+static int sandbox_sf_bind_bus_cs(struct sandbox_state *state, int busnum,
+				  int cs, const char *spec)
+{
+	struct udevice *bus, *slave;
+	int ret;
+
+	ret = uclass_find_device_by_seq(UCLASS_SPI, busnum, true, &bus);
+	if (ret) {
+		printf("Invalid bus %d for spec '%s' (err=%d)\n", busnum,
+		       spec, ret);
+		return ret;
+	}
+	ret = spi_find_chip_select(bus, cs, &slave);
+	if (!ret) {
+		printf("Chip select %d already exists for spec '%s'\n", cs,
+		       spec);
+		return -EEXIST;
+	}
+
+	ret = device_bind_driver(bus, "spi_flash_std", spec, &slave);
+	if (ret)
+		return ret;
+
+	return sandbox_sf_bind_emul(state, busnum, cs, bus, -1, spec);
+}
+
+int sandbox_spi_get_emul(struct sandbox_state *state,
+			 struct udevice *bus, struct udevice *slave,
+			 struct udevice **emulp)
+{
+	struct sandbox_spi_info *info;
+	int busnum = bus->seq;
+	int cs = spi_chip_select(slave);
+	int ret;
+
+	info = &state->spi[busnum][cs];
+	if (!info->emul) {
+		/* Use the same device tree node as the SPI flash device */
+		debug("%s: busnum=%u, cs=%u: binding SPI flash emulation: ",
+		      __func__, busnum, cs);
+		ret = sandbox_sf_bind_emul(state, busnum, cs, bus,
+					   slave->of_offset, slave->name);
+		if (ret) {
+			debug("failed (err=%d)\n", ret);
+			return ret;
+		}
+		debug("OK\n");
+	}
+	*emulp = info->emul;
+
+	return 0;
+}
+
+int dm_scan_other(bool pre_reloc_only)
+{
+	struct sandbox_state *state = state_get_current();
+	int busnum, cs;
+
+	if (pre_reloc_only)
+		return 0;
+	for (busnum = 0; busnum < CONFIG_SANDBOX_SPI_MAX_BUS; busnum++) {
+		for (cs = 0; cs < CONFIG_SANDBOX_SPI_MAX_CS; cs++) {
+			const char *spec = state->spi[busnum][cs].spec;
+			int ret;
+
+			if (spec) {
+				ret = sandbox_sf_bind_bus_cs(state, busnum,
+							     cs, spec);
+				if (ret) {
+					debug("%s: Bind failed for bus %d, cs %d\n",
+					      __func__, busnum, cs);
+					return ret;
+				}
+				debug("%s:  Setting up spec '%s' for bus %d, cs %d\n",
+				      __func__, spec, busnum, cs);
+			}
+		}
+	}
+
+	return 0;
+}
+#endif
+
+static const struct udevice_id sandbox_sf_ids[] = {
+	{ .compatible = "sandbox,spi-flash" },
+	{ }
+};
+
+U_BOOT_DRIVER(sandbox_sf_emul) = {
+	.name		= "sandbox_sf_emul",
+	.id		= UCLASS_SPI_EMUL,
+	.of_match	= sandbox_sf_ids,
+	.ofdata_to_platdata = sandbox_sf_ofdata_to_platdata,
+	.probe		= sandbox_sf_probe,
+	.remove		= sandbox_sf_remove,
+	.priv_auto_alloc_size = sizeof(struct sandbox_spi_flash),
+	.platdata_auto_alloc_size = sizeof(struct sandbox_spi_flash_plat_data),
+	.ops		= &sandbox_sf_emul_ops,
+};
-- 
1.9.1



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