aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/mtd/maps
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mtd/maps')
-rw-r--r--drivers/mtd/maps/Kconfig13
-rw-r--r--drivers/mtd/maps/Makefile1
-rw-r--r--drivers/mtd/maps/bfin-async-flash.c5
-rw-r--r--drivers/mtd/maps/integrator-flash.c232
-rw-r--r--drivers/mtd/maps/physmap.c40
-rw-r--r--drivers/mtd/maps/physmap_of.c199
-rw-r--r--drivers/mtd/maps/pmcmsp-ramroot.c104
-rw-r--r--drivers/mtd/maps/pxa2xx-flash.c22
-rw-r--r--drivers/mtd/maps/rbtx4939-flash.c23
-rw-r--r--drivers/mtd/maps/sa1100-flash.c23
-rw-r--r--drivers/mtd/maps/uclinux.c16
11 files changed, 329 insertions, 349 deletions
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 82923bd2d9c5..0b98654d8eed 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -105,15 +105,6 @@ config MSP_FLASH_MAP_LIMIT
default "0x02000000"
depends on MSP_FLASH_MAP_LIMIT_32M
-config MTD_PMC_MSP_RAMROOT
- tristate "Embedded RAM block device for root on PMC-Sierra MSP"
- depends on PMC_MSP_EMBEDDED_ROOTFS && \
- (MTD_BLOCK || MTD_BLOCK_RO) && \
- MTD_RAM
- help
- This provides support for the embedded root file system
- on PMC MSP devices. This memory is mapped as a MTD block device.
-
config MTD_SUN_UFLASH
tristate "Sun Microsystems userflash support"
depends on SPARC && MTD_CFI && PCI
@@ -270,7 +261,7 @@ config MTD_ALCHEMY
config MTD_DILNETPC
tristate "CFI Flash device mapped on DIL/Net PC"
- depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT
+ depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT && BROKEN
help
MTD map driver for SSV DIL/Net PC Boards "DNP" and "ADNP".
For details, see <http://www.ssv-embedded.de/ssv/pc104/p169.htm>
@@ -501,7 +492,7 @@ config MTD_BFIN_ASYNC
If compiled as a module, it will be called bfin-async-flash.
config MTD_UCLINUX
- tristate "Generic uClinux RAM/ROM filesystem support"
+ bool "Generic uClinux RAM/ROM filesystem support"
depends on MTD_PARTITIONS && MTD_RAM && !MMU
help
Map driver to support image based filesystems for uClinux.
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 2dbc1bec8488..8bae7f9850c0 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -25,7 +25,6 @@ obj-$(CONFIG_MTD_OCTAGON) += octagon-5066.o
obj-$(CONFIG_MTD_PHYSMAP) += physmap.o
obj-$(CONFIG_MTD_PHYSMAP_OF) += physmap_of.o
obj-$(CONFIG_MTD_PMC_MSP_EVM) += pmcmsp-flash.o
-obj-$(CONFIG_MTD_PMC_MSP_RAMROOT)+= pmcmsp-ramroot.o
obj-$(CONFIG_MTD_PCMCIA) += pcmciamtd.o
obj-$(CONFIG_MTD_RPXLITE) += rpxlite.o
obj-$(CONFIG_MTD_TQM8XXL) += tqm8xxl.o
diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c
index 576611f605db..365c77b1b871 100644
--- a/drivers/mtd/maps/bfin-async-flash.c
+++ b/drivers/mtd/maps/bfin-async-flash.c
@@ -40,6 +40,9 @@ struct async_state {
uint32_t flash_ambctl0, flash_ambctl1;
uint32_t save_ambctl0, save_ambctl1;
unsigned long irq_flags;
+#ifdef CONFIG_MTD_PARTITIONS
+ struct mtd_partition *parts;
+#endif
};
static void switch_to_flash(struct async_state *state)
@@ -170,6 +173,7 @@ static int __devinit bfin_flash_probe(struct platform_device *pdev)
if (ret > 0) {
pr_devinit(KERN_NOTICE DRIVER_NAME ": Using commandline partition definition\n");
add_mtd_partitions(state->mtd, pdata->parts, ret);
+ state->parts = pdata->parts;
} else if (pdata->nr_parts) {
pr_devinit(KERN_NOTICE DRIVER_NAME ": Using board partition definition\n");
@@ -193,6 +197,7 @@ static int __devexit bfin_flash_remove(struct platform_device *pdev)
gpio_free(state->enet_flash_pin);
#ifdef CONFIG_MTD_PARTITIONS
del_mtd_partitions(state->mtd);
+ kfree(state->parts);
#endif
map_destroy(state->mtd);
kfree(state);
diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c
index c9681a339a59..2aac41bde8b3 100644
--- a/drivers/mtd/maps/integrator-flash.c
+++ b/drivers/mtd/maps/integrator-flash.c
@@ -36,27 +36,31 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
+#include <linux/mtd/concat.h>
#include <asm/mach/flash.h>
#include <mach/hardware.h>
#include <asm/system.h>
-#ifdef CONFIG_ARCH_P720T
-#define FLASH_BASE (0x04000000)
-#define FLASH_SIZE (64*1024*1024)
-#endif
+struct armflash_subdev_info {
+ char *name;
+ struct mtd_info *mtd;
+ struct map_info map;
+ struct flash_platform_data *plat;
+};
struct armflash_info {
- struct flash_platform_data *plat;
struct resource *res;
struct mtd_partition *parts;
struct mtd_info *mtd;
- struct map_info map;
+ int nr_subdev;
+ struct armflash_subdev_info subdev[0];
};
static void armflash_set_vpp(struct map_info *map, int on)
{
- struct armflash_info *info = container_of(map, struct armflash_info, map);
+ struct armflash_subdev_info *info =
+ container_of(map, struct armflash_subdev_info, map);
if (info->plat && info->plat->set_vpp)
info->plat->set_vpp(on);
@@ -64,32 +68,17 @@ static void armflash_set_vpp(struct map_info *map, int on)
static const char *probes[] = { "cmdlinepart", "RedBoot", "afs", NULL };
-static int armflash_probe(struct platform_device *dev)
+static int armflash_subdev_probe(struct armflash_subdev_info *subdev,
+ struct resource *res)
{
- struct flash_platform_data *plat = dev->dev.platform_data;
- struct resource *res = dev->resource;
- unsigned int size = res->end - res->start + 1;
- struct armflash_info *info;
- int err;
+ struct flash_platform_data *plat = subdev->plat;
+ resource_size_t size = res->end - res->start + 1;
void __iomem *base;
+ int err = 0;
- info = kzalloc(sizeof(struct armflash_info), GFP_KERNEL);
- if (!info) {
- err = -ENOMEM;
- goto out;
- }
-
- info->plat = plat;
- if (plat && plat->init) {
- err = plat->init();
- if (err)
- goto no_resource;
- }
-
- info->res = request_mem_region(res->start, size, "armflash");
- if (!info->res) {
+ if (!request_mem_region(res->start, size, subdev->name)) {
err = -EBUSY;
- goto no_resource;
+ goto out;
}
base = ioremap(res->start, size);
@@ -101,27 +90,140 @@ static int armflash_probe(struct platform_device *dev)
/*
* look for CFI based flash parts fitted to this board
*/
- info->map.size = size;
- info->map.bankwidth = plat->width;
- info->map.phys = res->start;
- info->map.virt = base;
- info->map.name = dev_name(&dev->dev);
- info->map.set_vpp = armflash_set_vpp;
+ subdev->map.size = size;
+ subdev->map.bankwidth = plat->width;
+ subdev->map.phys = res->start;
+ subdev->map.virt = base;
+ subdev->map.name = subdev->name;
+ subdev->map.set_vpp = armflash_set_vpp;
- simple_map_init(&info->map);
+ simple_map_init(&subdev->map);
/*
* Also, the CFI layer automatically works out what size
* of chips we have, and does the necessary identification
* for us automatically.
*/
- info->mtd = do_map_probe(plat->map_name, &info->map);
- if (!info->mtd) {
+ subdev->mtd = do_map_probe(plat->map_name, &subdev->map);
+ if (!subdev->mtd) {
err = -ENXIO;
goto no_device;
}
- info->mtd->owner = THIS_MODULE;
+ subdev->mtd->owner = THIS_MODULE;
+
+ /* Successful? */
+ if (err == 0)
+ return err;
+
+ if (subdev->mtd)
+ map_destroy(subdev->mtd);
+ no_device:
+ iounmap(base);
+ no_mem:
+ release_mem_region(res->start, size);
+ out:
+ return err;
+}
+
+static void armflash_subdev_remove(struct armflash_subdev_info *subdev)
+{
+ if (subdev->mtd)
+ map_destroy(subdev->mtd);
+ if (subdev->map.virt)
+ iounmap(subdev->map.virt);
+ kfree(subdev->name);
+ subdev->name = NULL;
+ release_mem_region(subdev->map.phys, subdev->map.size);
+}
+
+static int armflash_probe(struct platform_device *dev)
+{
+ struct flash_platform_data *plat = dev->dev.platform_data;
+ unsigned int size;
+ struct armflash_info *info;
+ int i, nr, err;
+
+ /* Count the number of devices */
+ for (nr = 0; ; nr++)
+ if (!platform_get_resource(dev, IORESOURCE_MEM, nr))
+ break;
+ if (nr == 0) {
+ err = -ENODEV;
+ goto out;
+ }
+
+ size = sizeof(struct armflash_info) +
+ sizeof(struct armflash_subdev_info) * nr;
+ info = kzalloc(size, GFP_KERNEL);
+ if (!info) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ if (plat && plat->init) {
+ err = plat->init();
+ if (err)
+ goto no_resource;
+ }
+
+ for (i = 0; i < nr; i++) {
+ struct armflash_subdev_info *subdev = &info->subdev[i];
+ struct resource *res;
+
+ res = platform_get_resource(dev, IORESOURCE_MEM, i);
+ if (!res)
+ break;
+
+ if (nr == 1)
+ /* No MTD concatenation, just use the default name */
+ subdev->name = kstrdup(dev_name(&dev->dev), GFP_KERNEL);
+ else
+ subdev->name = kasprintf(GFP_KERNEL, "%s-%d",
+ dev_name(&dev->dev), i);
+ if (!subdev->name) {
+ err = -ENOMEM;
+ break;
+ }
+ subdev->plat = plat;
+
+ err = armflash_subdev_probe(subdev, res);
+ if (err) {
+ kfree(subdev->name);
+ subdev->name = NULL;
+ break;
+ }
+ }
+ info->nr_subdev = i;
+
+ if (err)
+ goto subdev_err;
+
+ if (info->nr_subdev == 1)
+ info->mtd = info->subdev[0].mtd;
+ else if (info->nr_subdev > 1) {
+#ifdef CONFIG_MTD_CONCAT
+ struct mtd_info *cdev[info->nr_subdev];
+
+ /*
+ * We detected multiple devices. Concatenate them together.
+ */
+ for (i = 0; i < info->nr_subdev; i++)
+ cdev[i] = info->subdev[i].mtd;
+
+ info->mtd = mtd_concat_create(cdev, info->nr_subdev,
+ dev_name(&dev->dev));
+ if (info->mtd == NULL)
+ err = -ENXIO;
+#else
+ printk(KERN_ERR "armflash: multiple devices found but "
+ "MTD concat support disabled.\n");
+ err = -ENXIO;
+#endif
+ }
+
+ if (err < 0)
+ goto cleanup;
err = parse_mtd_partitions(info->mtd, probes, &info->parts, 0);
if (err > 0) {
@@ -131,28 +233,30 @@ static int armflash_probe(struct platform_device *dev)
"mtd partition registration failed: %d\n", err);
}
- if (err == 0)
+ if (err == 0) {
platform_set_drvdata(dev, info);
+ return err;
+ }
/*
- * If we got an error, free all resources.
+ * We got an error, free all resources.
*/
- if (err < 0) {
- if (info->mtd) {
- del_mtd_partitions(info->mtd);
- map_destroy(info->mtd);
- }
- kfree(info->parts);
-
- no_device:
- iounmap(base);
- no_mem:
- release_mem_region(res->start, size);
- no_resource:
- if (plat && plat->exit)
- plat->exit();
- kfree(info);
+ cleanup:
+ if (info->mtd) {
+ del_mtd_partitions(info->mtd);
+#ifdef CONFIG_MTD_CONCAT
+ if (info->mtd != info->subdev[0].mtd)
+ mtd_concat_destroy(info->mtd);
+#endif
}
+ kfree(info->parts);
+ subdev_err:
+ for (i = info->nr_subdev - 1; i >= 0; i--)
+ armflash_subdev_remove(&info->subdev[i]);
+ no_resource:
+ if (plat && plat->exit)
+ plat->exit();
+ kfree(info);
out:
return err;
}
@@ -160,22 +264,26 @@ static int armflash_probe(struct platform_device *dev)
static int armflash_remove(struct platform_device *dev)
{
struct armflash_info *info = platform_get_drvdata(dev);
+ struct flash_platform_data *plat = dev->dev.platform_data;
+ int i;
platform_set_drvdata(dev, NULL);
if (info) {
if (info->mtd) {
del_mtd_partitions(info->mtd);
- map_destroy(info->mtd);
+#ifdef CONFIG_MTD_CONCAT
+ if (info->mtd != info->subdev[0].mtd)
+ mtd_concat_destroy(info->mtd);
+#endif
}
kfree(info->parts);
- iounmap(info->map.virt);
- release_resource(info->res);
- kfree(info->res);
+ for (i = info->nr_subdev - 1; i >= 0; i--)
+ armflash_subdev_remove(&info->subdev[i]);
- if (info->plat && info->plat->exit)
- info->plat->exit();
+ if (plat && plat->exit)
+ plat->exit();
kfree(info);
}
diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c
index 29a901157352..380648e9051a 100644
--- a/drivers/mtd/maps/physmap.c
+++ b/drivers/mtd/maps/physmap.c
@@ -195,42 +195,6 @@ err_out:
}
#ifdef CONFIG_PM
-static int physmap_flash_suspend(struct platform_device *dev, pm_message_t state)
-{
- struct physmap_flash_info *info = platform_get_drvdata(dev);
- int ret = 0;
- int i;
-
- for (i = 0; i < MAX_RESOURCES && info->mtd[i]; i++)
- if (info->mtd[i]->suspend) {
- ret = info->mtd[i]->suspend(info->mtd[i]);
- if (ret)
- goto fail;
- }
-
- return 0;
-fail:
- for (--i; i >= 0; --i)
- if (info->mtd[i]->suspend) {
- BUG_ON(!info->mtd[i]->resume);
- info->mtd[i]->resume(info->mtd[i]);
- }
-
- return ret;
-}
-
-static int physmap_flash_resume(struct platform_device *dev)
-{
- struct physmap_flash_info *info = platform_get_drvdata(dev);
- int i;
-
- for (i = 0; i < MAX_RESOURCES && info->mtd[i]; i++)
- if (info->mtd[i]->resume)
- info->mtd[i]->resume(info->mtd[i]);
-
- return 0;
-}
-
static void physmap_flash_shutdown(struct platform_device *dev)
{
struct physmap_flash_info *info = platform_get_drvdata(dev);
@@ -242,16 +206,12 @@ static void physmap_flash_shutdown(struct platform_device *dev)
info->mtd[i]->resume(info->mtd[i]);
}
#else
-#define physmap_flash_suspend NULL
-#define physmap_flash_resume NULL
#define physmap_flash_shutdown NULL
#endif
static struct platform_driver physmap_flash_driver = {
.probe = physmap_flash_probe,
.remove = physmap_flash_remove,
- .suspend = physmap_flash_suspend,
- .resume = physmap_flash_resume,
.shutdown = physmap_flash_shutdown,
.driver = {
.name = "physmap-flash",
diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c
index c83a60fada53..39d357b2eb47 100644
--- a/drivers/mtd/maps/physmap_of.c
+++ b/drivers/mtd/maps/physmap_of.c
@@ -20,16 +20,23 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
+#include <linux/mtd/concat.h>
#include <linux/of.h>
#include <linux/of_platform.h>
+struct of_flash_list {
+ struct mtd_info *mtd;
+ struct map_info map;
+ struct resource *res;
+};
+
struct of_flash {
- struct mtd_info *mtd;
- struct map_info map;
- struct resource *res;
+ struct mtd_info *cmtd;
#ifdef CONFIG_MTD_PARTITIONS
struct mtd_partition *parts;
#endif
+ int list_size; /* number of elements in of_flash_list */
+ struct of_flash_list list[0];
};
#ifdef CONFIG_MTD_PARTITIONS
@@ -88,30 +95,44 @@ static int parse_obsolete_partitions(struct of_device *dev,
static int of_flash_remove(struct of_device *dev)
{
struct of_flash *info;
+ int i;
info = dev_get_drvdata(&dev->dev);
if (!info)
return 0;
dev_set_drvdata(&dev->dev, NULL);
- if (info->mtd) {
+#ifdef CONFIG_MTD_CONCAT
+ if (info->cmtd != info->list[0].mtd) {
+ del_mtd_device(info->cmtd);
+ mtd_concat_destroy(info->cmtd);
+ }
+#endif
+
+ if (info->cmtd) {
if (OF_FLASH_PARTS(info)) {
- del_mtd_partitions(info->mtd);
+ del_mtd_partitions(info->cmtd);
kfree(OF_FLASH_PARTS(info));
} else {
- del_mtd_device(info->mtd);
+ del_mtd_device(info->cmtd);
}
- map_destroy(info->mtd);
}
- if (info->map.virt)
- iounmap(info->map.virt);
+ for (i = 0; i < info->list_size; i++) {
+ if (info->list[i].mtd)
+ map_destroy(info->list[i].mtd);
- if (info->res) {
- release_resource(info->res);
- kfree(info->res);
+ if (info->list[i].map.virt)
+ iounmap(info->list[i].map.virt);
+
+ if (info->list[i].res) {
+ release_resource(info->list[i].res);
+ kfree(info->list[i].res);
+ }
}
+ kfree(info);
+
return 0;
}
@@ -164,68 +185,130 @@ static int __devinit of_flash_probe(struct of_device *dev,
const char *probe_type = match->data;
const u32 *width;
int err;
-
- err = -ENXIO;
- if (of_address_to_resource(dp, 0, &res)) {
- dev_err(&dev->dev, "Can't get IO address from device tree\n");
+ int i;
+ int count;
+ const u32 *p;
+ int reg_tuple_size;
+ struct mtd_info **mtd_list = NULL;
+
+ reg_tuple_size = (of_n_addr_cells(dp) + of_n_size_cells(dp)) * sizeof(u32);
+
+ /*
+ * Get number of "reg" tuples. Scan for MTD devices on area's
+ * described by each "reg" region. This makes it possible (including
+ * the concat support) to support the Intel P30 48F4400 chips which
+ * consists internally of 2 non-identical NOR chips on one die.
+ */
+ p = of_get_property(dp, "reg", &count);
+ if (count % reg_tuple_size != 0) {
+ dev_err(&dev->dev, "Malformed reg property on %s\n",
+ dev->node->full_name);
+ err = -EINVAL;
goto err_out;
}
-
- dev_dbg(&dev->dev, "of_flash device: %.8llx-%.8llx\n",
- (unsigned long long)res.start, (unsigned long long)res.end);
+ count /= reg_tuple_size;
err = -ENOMEM;
- info = kzalloc(sizeof(*info), GFP_KERNEL);
+ info = kzalloc(sizeof(struct of_flash) +
+ sizeof(struct of_flash_list) * count, GFP_KERNEL);
+ if (!info)
+ goto err_out;
+
+ mtd_list = kzalloc(sizeof(struct mtd_info) * count, GFP_KERNEL);
if (!info)
goto err_out;
dev_set_drvdata(&dev->dev, info);
- err = -EBUSY;
- info->res = request_mem_region(res.start, res.end - res.start + 1,
- dev_name(&dev->dev));
- if (!info->res)
- goto err_out;
+ for (i = 0; i < count; i++) {
+ err = -ENXIO;
+ if (of_address_to_resource(dp, i, &res)) {
+ dev_err(&dev->dev, "Can't get IO address from device"
+ " tree\n");
+ goto err_out;
+ }
- err = -ENXIO;
- width = of_get_property(dp, "bank-width", NULL);
- if (!width) {
- dev_err(&dev->dev, "Can't get bank width from device tree\n");
- goto err_out;
- }
+ dev_dbg(&dev->dev, "of_flash device: %.8llx-%.8llx\n",
+ (unsigned long long)res.start,
+ (unsigned long long)res.end);
+
+ err = -EBUSY;
+ info->list[i].res = request_mem_region(res.start, res.end -
+ res.start + 1,
+ dev_name(&dev->dev));
+ if (!info->list[i].res)
+ goto err_out;
+
+ err = -ENXIO;
+ width = of_get_property(dp, "bank-width", NULL);
+ if (!width) {
+ dev_err(&dev->dev, "Can't get bank width from device"
+ " tree\n");
+ goto err_out;
+ }
- info->map.name = dev_name(&dev->dev);
- info->map.phys = res.start;
- info->map.size = res.end - res.start + 1;
- info->map.bankwidth = *width;
+ info->list[i].map.name = dev_name(&dev->dev);
+ info->list[i].map.phys = res.start;
+ info->list[i].map.size = res.end - res.start + 1;
+ info->list[i].map.bankwidth = *width;
+
+ err = -ENOMEM;
+ info->list[i].map.virt = ioremap(info->list[i].map.phys,
+ info->list[i].map.size);
+ if (!info->list[i].map.virt) {
+ dev_err(&dev->dev, "Failed to ioremap() flash"
+ " region\n");
+ goto err_out;
+ }
- err = -ENOMEM;
- info->map.virt = ioremap(info->map.phys, info->map.size);
- if (!info->map.virt) {
- dev_err(&dev->dev, "Failed to ioremap() flash region\n");
- goto err_out;
- }
+ simple_map_init(&info->list[i].map);
- simple_map_init(&info->map);
+ if (probe_type) {
+ info->list[i].mtd = do_map_probe(probe_type,
+ &info->list[i].map);
+ } else {
+ info->list[i].mtd = obsolete_probe(dev,
+ &info->list[i].map);
+ }
+ mtd_list[i] = info->list[i].mtd;
- if (probe_type)
- info->mtd = do_map_probe(probe_type, &info->map);
- else
- info->mtd = obsolete_probe(dev, &info->map);
+ err = -ENXIO;
+ if (!info->list[i].mtd) {
+ dev_err(&dev->dev, "do_map_probe() failed\n");
+ goto err_out;
+ } else {
+ info->list_size++;
+ }
+ info->list[i].mtd->owner = THIS_MODULE;
+ info->list[i].mtd->dev.parent = &dev->dev;
+ }
- err = -ENXIO;
- if (!info->mtd) {
- dev_err(&dev->dev, "do_map_probe() failed\n");
- goto err_out;
+ err = 0;
+ if (info->list_size == 1) {
+ info->cmtd = info->list[0].mtd;
+ } else if (info->list_size > 1) {
+ /*
+ * We detected multiple devices. Concatenate them together.
+ */
+#ifdef CONFIG_MTD_CONCAT
+ info->cmtd = mtd_concat_create(mtd_list, info->list_size,
+ dev_name(&dev->dev));
+ if (info->cmtd == NULL)
+ err = -ENXIO;
+#else
+ printk(KERN_ERR "physmap_of: multiple devices "
+ "found but MTD concat support disabled.\n");
+ err = -ENXIO;
+#endif
}
- info->mtd->owner = THIS_MODULE;
- info->mtd->dev.parent = &dev->dev;
+ if (err)
+ goto err_out;
#ifdef CONFIG_MTD_PARTITIONS
/* First look for RedBoot table or partitions on the command
* line, these take precedence over device tree information */
- err = parse_mtd_partitions(info->mtd, part_probe_types,
- &info->parts, 0);
+ err = parse_mtd_partitions(info->cmtd, part_probe_types,
+ &info->parts, 0);
if (err < 0)
return err;
@@ -244,15 +327,19 @@ static int __devinit of_flash_probe(struct of_device *dev,
}
if (err > 0)
- add_mtd_partitions(info->mtd, info->parts, err);
+ add_mtd_partitions(info->cmtd, info->parts, err);
else
#endif
- add_mtd_device(info->mtd);
+ add_mtd_device(info->cmtd);
+
+ kfree(mtd_list);
return 0;
err_out:
+ kfree(mtd_list);
of_flash_remove(dev);
+
return err;
}
diff --git a/drivers/mtd/maps/pmcmsp-ramroot.c b/drivers/mtd/maps/pmcmsp-ramroot.c
deleted file mode 100644
index 30de5c0c09a9..000000000000
--- a/drivers/mtd/maps/pmcmsp-ramroot.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Mapping of the rootfs in a physical region of memory
- *
- * Copyright (C) 2005-2007 PMC-Sierra Inc.
- * Author: Andrew Hughes, Andrew_Hughes@pmc-sierra.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/fs.h>
-#include <linux/root_dev.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-
-#include <asm/io.h>
-
-#include <msp_prom.h>
-
-static struct mtd_info *rr_mtd;
-
-struct map_info rr_map = {
- .name = "ramroot",
- .bankwidth = 4,
-};
-
-static int __init init_rrmap(void)
-{
- void *ramroot_start;
- unsigned long ramroot_size;
-
- /* Check for supported rootfs types */
- if (get_ramroot(&ramroot_start, &ramroot_size)) {
- rr_map.phys = CPHYSADDR(ramroot_start);
- rr_map.size = ramroot_size;
-
- printk(KERN_NOTICE
- "PMC embedded root device: 0x%08lx @ 0x%08lx\n",
- rr_map.size, (unsigned long)rr_map.phys);
- } else {
- printk(KERN_ERR
- "init_rrmap: no supported embedded rootfs detected!\n");
- return -ENXIO;
- }
-
- /* Map rootfs to I/O space for block device driver */
- rr_map.virt = ioremap(rr_map.phys, rr_map.size);
- if (!rr_map.virt) {
- printk(KERN_ERR "Failed to ioremap\n");
- return -EIO;
- }
-
- simple_map_init(&rr_map);
-
- rr_mtd = do_map_probe("map_ram", &rr_map);
- if (rr_mtd) {
- rr_mtd->owner = THIS_MODULE;
-
- add_mtd_device(rr_mtd);
-
- return 0;
- }
-
- iounmap(rr_map.virt);
- return -ENXIO;
-}
-
-static void __exit cleanup_rrmap(void)
-{
- del_mtd_device(rr_mtd);
- map_destroy(rr_mtd);
-
- iounmap(rr_map.virt);
- rr_map.virt = NULL;
-}
-
-MODULE_AUTHOR("PMC-Sierra, Inc");
-MODULE_DESCRIPTION("MTD map driver for embedded PMC-Sierra MSP filesystem");
-MODULE_LICENSE("GPL");
-
-module_init(init_rrmap);
-module_exit(cleanup_rrmap);
diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c
index 572d32fdf38a..643aa06b599e 100644
--- a/drivers/mtd/maps/pxa2xx-flash.c
+++ b/drivers/mtd/maps/pxa2xx-flash.c
@@ -140,24 +140,6 @@ static int __devexit pxa2xx_flash_remove(struct platform_device *dev)
}
#ifdef CONFIG_PM
-static int pxa2xx_flash_suspend(struct platform_device *dev, pm_message_t state)
-{
- struct pxa2xx_flash_info *info = platform_get_drvdata(dev);
- int ret = 0;
-
- if (info->mtd && info->mtd->suspend)
- ret = info->mtd->suspend(info->mtd);
- return ret;
-}
-
-static int pxa2xx_flash_resume(struct platform_device *dev)
-{
- struct pxa2xx_flash_info *info = platform_get_drvdata(dev);
-
- if (info->mtd && info->mtd->resume)
- info->mtd->resume(info->mtd);
- return 0;
-}
static void pxa2xx_flash_shutdown(struct platform_device *dev)
{
struct pxa2xx_flash_info *info = platform_get_drvdata(dev);
@@ -166,8 +148,6 @@ static void pxa2xx_flash_shutdown(struct platform_device *dev)
info->mtd->resume(info->mtd);
}
#else
-#define pxa2xx_flash_suspend NULL
-#define pxa2xx_flash_resume NULL
#define pxa2xx_flash_shutdown NULL
#endif
@@ -178,8 +158,6 @@ static struct platform_driver pxa2xx_flash_driver = {
},
.probe = pxa2xx_flash_probe,
.remove = __devexit_p(pxa2xx_flash_remove),
- .suspend = pxa2xx_flash_suspend,
- .resume = pxa2xx_flash_resume,
.shutdown = pxa2xx_flash_shutdown,
};
diff --git a/drivers/mtd/maps/rbtx4939-flash.c b/drivers/mtd/maps/rbtx4939-flash.c
index d39f0adac846..83ed64512c5e 100644
--- a/drivers/mtd/maps/rbtx4939-flash.c
+++ b/drivers/mtd/maps/rbtx4939-flash.c
@@ -145,25 +145,6 @@ err_out:
}
#ifdef CONFIG_PM
-static int rbtx4939_flash_suspend(struct platform_device *dev,
- pm_message_t state)
-{
- struct rbtx4939_flash_info *info = platform_get_drvdata(dev);
-
- if (info->mtd->suspend)
- return info->mtd->suspend(info->mtd);
- return 0;
-}
-
-static int rbtx4939_flash_resume(struct platform_device *dev)
-{
- struct rbtx4939_flash_info *info = platform_get_drvdata(dev);
-
- if (info->mtd->resume)
- info->mtd->resume(info->mtd);
- return 0;
-}
-
static void rbtx4939_flash_shutdown(struct platform_device *dev)
{
struct rbtx4939_flash_info *info = platform_get_drvdata(dev);
@@ -173,16 +154,12 @@ static void rbtx4939_flash_shutdown(struct platform_device *dev)
info->mtd->resume(info->mtd);
}
#else
-#define rbtx4939_flash_suspend NULL
-#define rbtx4939_flash_resume NULL
#define rbtx4939_flash_shutdown NULL
#endif
static struct platform_driver rbtx4939_flash_driver = {
.probe = rbtx4939_flash_probe,
.remove = rbtx4939_flash_remove,
- .suspend = rbtx4939_flash_suspend,
- .resume = rbtx4939_flash_resume,
.shutdown = rbtx4939_flash_shutdown,
.driver = {
.name = "rbtx4939-flash",
diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c
index 05e9362dc7f0..c6210f5118d1 100644
--- a/drivers/mtd/maps/sa1100-flash.c
+++ b/drivers/mtd/maps/sa1100-flash.c
@@ -415,25 +415,6 @@ static int __exit sa1100_mtd_remove(struct platform_device *pdev)
}
#ifdef CONFIG_PM
-static int sa1100_mtd_suspend(struct platform_device *dev, pm_message_t state)
-{
- struct sa_info *info = platform_get_drvdata(dev);
- int ret = 0;
-
- if (info)
- ret = info->mtd->suspend(info->mtd);
-
- return ret;
-}
-
-static int sa1100_mtd_resume(struct platform_device *dev)
-{
- struct sa_info *info = platform_get_drvdata(dev);
- if (info)
- info->mtd->resume(info->mtd);
- return 0;
-}
-
static void sa1100_mtd_shutdown(struct platform_device *dev)
{
struct sa_info *info = platform_get_drvdata(dev);
@@ -441,16 +422,12 @@ static void sa1100_mtd_shutdown(struct platform_device *dev)
info->mtd->resume(info->mtd);
}
#else
-#define sa1100_mtd_suspend NULL
-#define sa1100_mtd_resume NULL
#define sa1100_mtd_shutdown NULL
#endif
static struct platform_driver sa1100_mtd_driver = {
.probe = sa1100_mtd_probe,
.remove = __exit_p(sa1100_mtd_remove),
- .suspend = sa1100_mtd_suspend,
- .resume = sa1100_mtd_resume,
.shutdown = sa1100_mtd_shutdown,
.driver = {
.name = "sa1100-mtd",
diff --git a/drivers/mtd/maps/uclinux.c b/drivers/mtd/maps/uclinux.c
index 81756e397711..d4314fb88212 100644
--- a/drivers/mtd/maps/uclinux.c
+++ b/drivers/mtd/maps/uclinux.c
@@ -22,15 +22,19 @@
/****************************************************************************/
+extern char _ebss;
+
struct map_info uclinux_ram_map = {
.name = "RAM",
+ .phys = (unsigned long)&_ebss,
+ .size = 0,
};
-struct mtd_info *uclinux_ram_mtdinfo;
+static struct mtd_info *uclinux_ram_mtdinfo;
/****************************************************************************/
-struct mtd_partition uclinux_romfs[] = {
+static struct mtd_partition uclinux_romfs[] = {
{ .name = "ROMfs" }
};
@@ -38,7 +42,7 @@ struct mtd_partition uclinux_romfs[] = {
/****************************************************************************/
-int uclinux_point(struct mtd_info *mtd, loff_t from, size_t len,
+static int uclinux_point(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, void **virt, resource_size_t *phys)
{
struct map_info *map = mtd->priv;
@@ -55,12 +59,10 @@ static int __init uclinux_mtd_init(void)
{
struct mtd_info *mtd;
struct map_info *mapp;
- extern char _ebss;
- unsigned long addr = (unsigned long) &_ebss;
mapp = &uclinux_ram_map;
- mapp->phys = addr;
- mapp->size = PAGE_ALIGN(ntohl(*((unsigned long *)(addr + 8))));
+ if (!mapp->size)
+ mapp->size = PAGE_ALIGN(ntohl(*((unsigned long *)(mapp->phys + 8))));
mapp->bankwidth = 4;
printk("uclinux[mtd]: RAM probe address=0x%x size=0x%x\n",
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.