* Licensed under the GPL-2 or later.
*/
+#define LOG_CATEGORY UCLASS_SPI_FLASH
+
#include <common.h>
#include <dm.h>
#include <malloc.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
SF_WRITE_STATUS, /* write the flash's status register */
};
+#if CONFIG_IS_ENABLED(LOG)
static const char *sandbox_sf_state_name(enum sandbox_sf_state state)
{
static const char * const states[] = {
};
return states[state];
}
+#endif /* LOG */
/* Bits for the status register */
#define STAT_WIP (1 << 0)
#define STAT_WEL (1 << 1)
+#define STAT_BP_SHIFT 2
+#define STAT_BP_MASK (7 << STAT_BP_SHIFT)
/* Assume all SPI flashes have 3 byte addresses since they do atm */
#define SF_ADDR_LEN 3
/* The current flash status (see STAT_XXX defines above) */
u16 status;
/* Data describing the flash we're emulating */
- const struct spi_flash_params *data;
+ const struct spi_flash_info *data;
/* The file on disk to serv up data from */
int fd;
};
int cs;
};
+void sandbox_sf_set_block_protect(struct udevice *dev, int bp_mask)
+{
+ struct sandbox_spi_flash *sbsf = dev_get_priv(dev);
+
+ sbsf->status &= ~STAT_BP_MASK;
+ sbsf->status |= bp_mask << STAT_BP_SHIFT;
+}
+
/**
* 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.
+ * device type from there.
*/
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;
+ const struct spi_flash_info *data;
struct sandbox_spi_flash_plat_data *pdata = dev_get_platdata(dev);
struct sandbox_state *state = state_get_current();
+ struct dm_spi_slave_platdata *slave_plat;
struct udevice *bus = dev->parent;
const char *spec = NULL;
+ struct udevice *emul;
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) {
+ ret = sandbox_spi_get_emul(state, bus, dev, &emul);
+ if (ret) {
printf("Error: Unknown chip select for device '%s'\n",
- dev->name);
- return -EINVAL;
+ dev->name);
+ return ret;
}
+ slave_plat = dev_get_parent_platdata(dev);
+ cs = slave_plat->cs;
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) {
- ret = -ENOENT;
- goto error;
- }
-
- file = strchr(spec, ':');
- if (!file) {
- printf("sandbox_sf: unable to parse file\n");
- 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);
+ printf("Error: No filename available\n");
+ return -EINVAL;
}
+ 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++) {
+ for (data = spi_flash_ids; data->name; data++) {
len = strlen(data->name);
if (idname_len != len)
continue;
break;
}
if (!data->name) {
- printf("sandbox_sf: unknown flash '%*s'\n", (int)idname_len,
+ printf("%s: unknown flash '%*s'\n", __func__, (int)idname_len,
spec);
ret = -EINVAL;
goto error;
sbsf->fd = os_open(pdata->filename, 02);
if (sbsf->fd == -1) {
- free(sbsf);
- printf("sandbox_sf: unable to open file '%s'\n",
+ printf("%s: unable to open file '%s'\n", __func__,
pdata->filename);
ret = -EIO;
goto error;
{
struct sandbox_spi_flash *sbsf = dev_get_priv(dev);
- debug("sandbox_sf: CS activated; state is fresh!\n");
+ log_content("sandbox_sf: CS activated; state is fresh!\n");
/* CS is asserted, so reset state */
sbsf->off = 0;
static void sandbox_sf_cs_deactivate(struct udevice *dev)
{
- debug("sandbox_sf: CS deactivated; cmd done processing!\n");
+ log_content("sandbox_sf: CS deactivated; cmd done processing!\n");
}
/*
/* we only support erase here */
if (sbsf->cmd == CMD_ERASE_CHIP) {
sbsf->erase_size = sbsf->data->sector_size *
- sbsf->data->nr_sectors;
+ sbsf->data->n_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))) {
+ } else if (sbsf->cmd == CMD_ERASE_64K && !(flags & SECT_4K)) {
sbsf->erase_size = 64 << 10;
} else {
debug(" cmd unknown: %#x\n", sbsf->cmd);
}
if (oldstate != sbsf->state)
- debug(" cmd: transition to %s state\n",
- sandbox_sf_state_name(sbsf->state));
+ log_content(" cmd: transition to %s state\n",
+ sandbox_sf_state_name(sbsf->state));
return 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);
+ log_content("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);
case SF_ID: {
u8 id;
- debug(" id: off:%u tx:", sbsf->off);
+ log_content(" id: off:%u tx:", sbsf->off);
if (sbsf->off < IDCODE_LEN) {
/* Extract correct byte from ID 0x00aabbcc */
- id = sbsf->data->jedec >>
+ id = ((JEDEC_MFR(sbsf->data) << 16) |
+ JEDEC_ID(sbsf->data)) >>
(8 * (IDCODE_LEN - 1 - sbsf->off));
} else {
id = 0;
}
- debug("%d %02x\n", sbsf->off, id);
+ log_content("%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]);
+ log_content(" 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);
+ log_content("addr:%06x\n", sbsf->off);
if (tx)
sandbox_spi_tristate(&tx[pos], 1);
sbsf->state = SF_ERASE;
goto case_sf_erase;
}
- debug(" cmd: transition to %s state\n",
- sandbox_sf_state_name(sbsf->state));
+ log_content(" cmd: transition to %s state\n",
+ sandbox_sf_state_name(sbsf->state));
break;
case SF_READ:
/*
*/
cnt = bytes - pos;
- debug(" tx: read(%u)\n", cnt);
+ log_content(" tx: read(%u)\n", cnt);
assert(tx);
ret = os_read(sbsf->fd, tx + pos, cnt);
if (ret < 0) {
pos += ret;
break;
case SF_READ_STATUS:
- debug(" read status: %#x\n", sbsf->status);
+ log_content(" 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);
+ log_content(" 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]);
+ log_content(" write status: %#x (ignored)\n", rx[pos]);
pos = bytes;
break;
case SF_WRITE:
}
cnt = bytes - pos;
- debug(" rx: write(%u)\n", cnt);
+ log_content(" rx: write(%u)\n", cnt);
if (tx)
sandbox_spi_tristate(&tx[pos], cnt);
ret = os_write(sbsf->fd, rx + pos, cnt);
/* 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);
+ log_content(" 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);
+ log_content(" sector erase addr: %u, size: %u\n",
+ sbsf->off, sbsf->erase_size);
cnt = bytes - pos;
if (tx)
ret = sandbox_erase_part(sbsf, sbsf->erase_size);
sbsf->status &= ~STAT_WEL;
if (ret) {
- debug("sandbox_sf: Erase failed\n");
+ log_content("sandbox_sf: Erase failed\n");
goto done;
}
goto done;
}
default:
- debug(" ??? no idea what to do ???\n");
+ log_content(" ??? no idea what to do ???\n");
goto done;
}
}
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);
+ pdata->filename = dev_read_string(dev, "sandbox,filename");
+ pdata->device_name = dev_read_string(dev, "compatible");
if (!pdata->filename || !pdata->device_name) {
debug("%s: Missing properties, filename=%s, device_name=%s\n",
__func__, pdata->filename, pdata->device_name);
};
#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@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;
- 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 *bus, ofnode node, const char *spec)
{
struct udevice *emul;
char name[20], *str;
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);
+ str = strdup(name);
+ if (!str)
+ return -ENOMEM;
+ ret = device_bind_ofnode(bus, drv, str, NULL, node, &emul);
if (ret) {
+ free(str);
printf("Cannot create emul device for spec '%s' (err=%d)\n",
spec, ret);
return ret;
struct udevice *dev;
dev = state->spi[busnum][cs].emul;
- device_remove(dev);
+ device_remove(dev, DM_REMOVE_NORMAL);
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)
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);
+ dev_ofnode(slave), slave->name);
if (ret) {
debug("failed (err=%d)\n", ret);
return ret;
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;
- }
- }
- }
- }
-
- return 0;
-}
#endif
static const struct udevice_id sandbox_sf_ids[] = {
projects / platform / kernel / u-boot.git / blobdiff