static int physmap_flash_probe(struct platform_device *dev)
{
struct physmap_flash_data *physmap_data;
struct physmap_flash_info *info;
const char **probe_type;
int err = 0;
int i;
int devices_found = 0;
physmap_data = dev->dev.platform_data;
if (physmap_data == NULL)
return -ENODEV;
info = kzalloc(sizeof(struct physmap_flash_info), GFP_KERNEL);
if (info == NULL) {
err = -ENOMEM;
goto err_out;
}
platform_set_drvdata(dev, info);
for (i = 0; i < dev->num_resources; i++) {
printk(KERN_NOTICE "physmap platform flash device: %.8llx at %.8llx\n",
(unsigned long long)(dev->resource[i].end - dev->resource[i].start + 1),
(unsigned long long)dev->resource[i].start);
info->res = request_mem_region(dev->resource[i].start,
dev->resource[i].end - dev->resource[i].start + 1,
dev->dev.bus_id);
if (info->res == NULL) {
dev_err(&dev->dev, "Could not reserve memory region\n");
err = -ENOMEM;
goto err_out;
}
info->map[i].name = dev->dev.bus_id;
info->map[i].phys = dev->resource[i].start;
info->map[i].size = dev->resource[i].end - dev->resource[i].start + 1;
info->map[i].bankwidth = physmap_data->width;
info->map[i].set_vpp = physmap_data->set_vpp;
info->map[i].virt = ioremap(info->map[i].phys, info->map[i].size);
if (info->map[i].virt == NULL) {
dev_err(&dev->dev, "Failed to ioremap flash region\n");
err = EIO;
goto err_out;
}
simple_map_init(&info->map[i]);
probe_type = rom_probe_types;
for (; info->mtd[i] == NULL && *probe_type != NULL; probe_type++)
info->mtd[i] = do_map_probe(*probe_type, &info->map[i]);
if (info->mtd[i] == NULL) {
dev_err(&dev->dev, "map_probe failed\n");
err = -ENXIO;
goto err_out;
} else {
devices_found++;
}
info->mtd[i]->owner = THIS_MODULE;
}
if (devices_found == 1) {
info->cmtd = info->mtd[0];
} else if (devices_found > 1) {
/*
* We detected multiple devices. Concatenate them together.
*/
#ifdef CONFIG_MTD_CONCAT
info->cmtd = mtd_concat_create(info->mtd, devices_found, dev->dev.bus_id);
if (info->cmtd == NULL)
err = -ENXIO;
#else
printk(KERN_ERR "physmap-flash: multiple devices "
"found but MTD concat support disabled.\n");
err = -ENXIO;
#endif
}
if (err)
goto err_out;
#ifdef CONFIG_MTD_PARTITIONS
err = parse_mtd_partitions(info->cmtd, part_probe_types, &info->parts, 0);
if (err > 0) {
add_mtd_partitions(info->cmtd, info->parts, err);
return 0;
}
if (physmap_data->nr_parts) {
printk(KERN_NOTICE "Using physmap partition information\n");
add_mtd_partitions(info->cmtd, physmap_data->parts,
physmap_data->nr_parts);
return 0;
}
#endif
add_mtd_device(info->cmtd);
return 0;
err_out:
physmap_flash_remove(dev);
return err;
}
static int physmap_flash_probe(struct platform_device *dev)
{
struct physmap_flash_data *physmap_data;
struct physmap_flash_info *info;
const char **probe_type;
int err = 0;
int i;
int devices_found = 0;
physmap_data = dev->dev.platform_data;
if (physmap_data == NULL)
return -ENODEV;
info = devm_kzalloc(&dev->dev, sizeof(struct physmap_flash_info),
GFP_KERNEL);
if (info == NULL) {
err = -ENOMEM;
goto err_out;
}
if (physmap_data->init) {
err = physmap_data->init(dev);
if (err)
goto err_out;
}
platform_set_drvdata(dev, info);
for (i = 0; i < dev->num_resources; i++) {
// printk(KERN_NOTICE "physmap platform flash device: %.8llx at %.8llx\n",
// (unsigned long long)resource_size(&dev->resource[i]),
;
if (!devm_request_mem_region(&dev->dev,
dev->resource[i].start,
resource_size(&dev->resource[i]),
dev_name(&dev->dev))) {
dev_err(&dev->dev, "Could not reserve memory region\n");
err = -ENOMEM;
goto err_out;
}
info->map[i].name = dev_name(&dev->dev);
info->map[i].phys = dev->resource[i].start;
info->map[i].size = resource_size(&dev->resource[i]);
info->map[i].bankwidth = physmap_data->width;
info->map[i].set_vpp = physmap_set_vpp;
info->map[i].pfow_base = physmap_data->pfow_base;
info->map[i].map_priv_1 = (unsigned long)dev;
info->map[i].virt = devm_ioremap(&dev->dev, info->map[i].phys,
info->map[i].size);
if (info->map[i].virt == NULL) {
dev_err(&dev->dev, "Failed to ioremap flash region\n");
err = -EIO;
goto err_out;
}
simple_map_init(&info->map[i]);
probe_type = rom_probe_types;
if (physmap_data->probe_type == NULL) {
for (; info->mtd[i] == NULL && *probe_type != NULL; probe_type++)
info->mtd[i] = do_map_probe(*probe_type, &info->map[i]);
} else
info->mtd[i] = do_map_probe(physmap_data->probe_type, &info->map[i]);
if (info->mtd[i] == NULL) {
dev_err(&dev->dev, "map_probe failed\n");
err = -ENXIO;
goto err_out;
} else {
devices_found++;
}
info->mtd[i]->owner = THIS_MODULE;
info->mtd[i]->dev.parent = &dev->dev;
}
if (devices_found == 1) {
info->cmtd = info->mtd[0];
} else if (devices_found > 1) {
/*
* We detected multiple devices. Concatenate them together.
*/
info->cmtd = mtd_concat_create(info->mtd, devices_found, dev_name(&dev->dev));
if (info->cmtd == NULL)
err = -ENXIO;
}
if (err)
goto err_out;
err = parse_mtd_partitions(info->cmtd, part_probe_types,
&info->parts, 0);
if (err > 0) {
mtd_device_register(info->cmtd, info->parts, err);
info->nr_parts = err;
return 0;
}
if (physmap_data->nr_parts) {
;
mtd_device_register(info->cmtd, physmap_data->parts,
physmap_data->nr_parts);
return 0;
}
mtd_device_register(info->cmtd, NULL, 0);
return 0;
err_out:
physmap_flash_remove(dev);
return err;
}
static int physmap_flash_probe(struct platform_device *dev)
{
struct physmap_flash_data *physmap_data;
struct physmap_flash_info *info;
const char **probe_type;
int err;
physmap_data = dev->dev.platform_data;
if (physmap_data == NULL)
return -ENODEV;
printk(KERN_NOTICE "physmap platform flash device: %.8llx at %.8llx\n",
(unsigned long long)dev->resource->end - dev->resource->start + 1,
(unsigned long long)dev->resource->start);
info = kmalloc(sizeof(struct physmap_flash_info), GFP_KERNEL);
if (info == NULL) {
err = -ENOMEM;
goto err_out;
}
memset(info, 0, sizeof(*info));
platform_set_drvdata(dev, info);
info->res = request_mem_region(dev->resource->start,
dev->resource->end - dev->resource->start + 1,
dev->dev.bus_id);
if (info->res == NULL) {
dev_err(&dev->dev, "Could not reserve memory region\n");
err = -ENOMEM;
goto err_out;
}
info->map.name = dev->dev.bus_id;
info->map.phys = dev->resource->start;
info->map.size = dev->resource->end - dev->resource->start + 1;
info->map.bankwidth = physmap_data->width;
info->map.set_vpp = physmap_data->set_vpp;
info->map.virt = ioremap(info->map.phys, info->map.size);
if (info->map.virt == NULL) {
dev_err(&dev->dev, "Failed to ioremap flash region\n");
err = EIO;
goto err_out;
}
simple_map_init(&info->map);
probe_type = rom_probe_types;
for (; info->mtd == NULL && *probe_type != NULL; probe_type++)
info->mtd = do_map_probe(*probe_type, &info->map);
if (info->mtd == NULL) {
dev_err(&dev->dev, "map_probe failed\n");
err = -ENXIO;
goto err_out;
}
info->mtd->owner = THIS_MODULE;
#ifdef CONFIG_MTD_PARTITIONS
err = parse_mtd_partitions(info->mtd, part_probe_types, &info->parts, 0);
if (err > 0) {
add_mtd_partitions(info->mtd, info->parts, err);
return 0;
}
if (physmap_data->nr_parts) {
printk(KERN_NOTICE "Using physmap partition information\n");
add_mtd_partitions(info->mtd, physmap_data->parts,
physmap_data->nr_parts);
return 0;
}
#endif
add_mtd_device(info->mtd);
return 0;
err_out:
physmap_flash_remove(dev);
return err;
}
