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path: root/drivers/mtd/maps/bfin-async-flash.c
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Diffstat (limited to 'drivers/mtd/maps/bfin-async-flash.c')
-rw-r--r--drivers/mtd/maps/bfin-async-flash.c78
1 files changed, 28 insertions, 50 deletions
diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c
index 6fec86aaed7..6ea51e54904 100644
--- a/drivers/mtd/maps/bfin-async-flash.c
+++ b/drivers/mtd/maps/bfin-async-flash.c
@@ -6,7 +6,7 @@
* for example. All board-specific configuration goes in your
* board resources file.
*
- * Copyright 2000 Nicolas Pitre <nico@cam.org>
+ * Copyright 2000 Nicolas Pitre <nico@fluxnic.net>
* Copyright 2005-2008 Analog Devices Inc.
*
* Enter bugs at http://blackfin.uclinux.org/
@@ -14,7 +14,6 @@
* Licensed under the GPL-2 or later.
*/
-#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mtd/mtd.h>
@@ -22,6 +21,7 @@
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
+#include <linux/slab.h>
#include <linux/types.h>
#include <asm/blackfin.h>
@@ -29,7 +29,8 @@
#include <linux/io.h>
#include <asm/unaligned.h>
-#define pr_devinit(fmt, args...) ({ static const __devinitconst char __fmt[] = fmt; printk(__fmt, ## args); })
+#define pr_devinit(fmt, args...) \
+ ({ static const char __fmt[] = fmt; printk(__fmt, ## args); })
#define DRIVER_NAME "bfin-async-flash"
@@ -66,7 +67,7 @@ static void switch_back(struct async_state *state)
local_irq_restore(state->irq_flags);
}
-static map_word bfin_read(struct map_info *map, unsigned long ofs)
+static map_word bfin_flash_read(struct map_info *map, unsigned long ofs)
{
struct async_state *state = (struct async_state *)map->map_priv_1;
uint16_t word;
@@ -82,7 +83,7 @@ static map_word bfin_read(struct map_info *map, unsigned long ofs)
return test;
}
-static void bfin_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+static void bfin_flash_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
{
struct async_state *state = (struct async_state *)map->map_priv_1;
@@ -93,7 +94,7 @@ static void bfin_copy_from(struct map_info *map, void *to, unsigned long from, s
switch_back(state);
}
-static void bfin_write(struct map_info *map, map_word d1, unsigned long ofs)
+static void bfin_flash_write(struct map_info *map, map_word d1, unsigned long ofs)
{
struct async_state *state = (struct async_state *)map->map_priv_1;
uint16_t d;
@@ -108,7 +109,7 @@ static void bfin_write(struct map_info *map, map_word d1, unsigned long ofs)
switch_back(state);
}
-static void bfin_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+static void bfin_flash_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
{
struct async_state *state = (struct async_state *)map->map_priv_1;
@@ -120,14 +121,13 @@ static void bfin_copy_to(struct map_info *map, unsigned long to, const void *fro
switch_back(state);
}
-#ifdef CONFIG_MTD_PARTITIONS
-static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", NULL };
-#endif
+static const char * const part_probe_types[] = {
+ "cmdlinepart", "RedBoot", NULL };
-static int __devinit bfin_flash_probe(struct platform_device *pdev)
+static int bfin_flash_probe(struct platform_device *pdev)
{
int ret;
- struct physmap_flash_data *pdata = pdev->dev.platform_data;
+ struct physmap_flash_data *pdata = dev_get_platdata(&pdev->dev);
struct resource *memory = platform_get_resource(pdev, IORESOURCE_MEM, 0);
struct resource *flash_ambctl = platform_get_resource(pdev, IORESOURCE_MEM, 1);
struct async_state *state;
@@ -137,12 +137,12 @@ static int __devinit bfin_flash_probe(struct platform_device *pdev)
return -ENOMEM;
state->map.name = DRIVER_NAME;
- state->map.read = bfin_read;
- state->map.copy_from = bfin_copy_from;
- state->map.write = bfin_write;
- state->map.copy_to = bfin_copy_to;
+ state->map.read = bfin_flash_read;
+ state->map.copy_from = bfin_flash_copy_from;
+ state->map.write = bfin_flash_write;
+ state->map.copy_to = bfin_flash_copy_to;
state->map.bankwidth = pdata->width;
- state->map.size = memory->end - memory->start + 1;
+ state->map.size = resource_size(memory);
state->map.virt = (void __iomem *)memory->start;
state->map.phys = memory->start;
state->map.map_priv_1 = (unsigned long)state;
@@ -152,44 +152,32 @@ static int __devinit bfin_flash_probe(struct platform_device *pdev)
if (gpio_request(state->enet_flash_pin, DRIVER_NAME)) {
pr_devinit(KERN_ERR DRIVER_NAME ": Failed to request gpio %d\n", state->enet_flash_pin);
+ kfree(state);
return -EBUSY;
}
gpio_direction_output(state->enet_flash_pin, 1);
pr_devinit(KERN_NOTICE DRIVER_NAME ": probing %d-bit flash bus\n", state->map.bankwidth * 8);
state->mtd = do_map_probe(memory->name, &state->map);
- if (!state->mtd)
+ if (!state->mtd) {
+ gpio_free(state->enet_flash_pin);
+ kfree(state);
return -ENXIO;
-
-#ifdef CONFIG_MTD_PARTITIONS
- ret = parse_mtd_partitions(state->mtd, part_probe_types, &pdata->parts, 0);
- if (ret > 0) {
- pr_devinit(KERN_NOTICE DRIVER_NAME ": Using commandline partition definition\n");
- add_mtd_partitions(state->mtd, pdata->parts, ret);
-
- } else if (pdata->nr_parts) {
- pr_devinit(KERN_NOTICE DRIVER_NAME ": Using board partition definition\n");
- add_mtd_partitions(state->mtd, pdata->parts, pdata->nr_parts);
-
- } else
-#endif
- {
- pr_devinit(KERN_NOTICE DRIVER_NAME ": no partition info available, registering whole flash at once\n");
- add_mtd_device(state->mtd);
}
+ mtd_device_parse_register(state->mtd, part_probe_types, NULL,
+ pdata->parts, pdata->nr_parts);
+
platform_set_drvdata(pdev, state);
return 0;
}
-static int __devexit bfin_flash_remove(struct platform_device *pdev)
+static int bfin_flash_remove(struct platform_device *pdev)
{
struct async_state *state = platform_get_drvdata(pdev);
gpio_free(state->enet_flash_pin);
-#ifdef CONFIG_MTD_PARTITIONS
- del_mtd_partitions(state->mtd);
-#endif
+ mtd_device_unregister(state->mtd);
map_destroy(state->mtd);
kfree(state);
return 0;
@@ -197,23 +185,13 @@ static int __devexit bfin_flash_remove(struct platform_device *pdev)
static struct platform_driver bfin_flash_driver = {
.probe = bfin_flash_probe,
- .remove = __devexit_p(bfin_flash_remove),
+ .remove = bfin_flash_remove,
.driver = {
.name = DRIVER_NAME,
},
};
-static int __init bfin_flash_init(void)
-{
- return platform_driver_register(&bfin_flash_driver);
-}
-module_init(bfin_flash_init);
-
-static void __exit bfin_flash_exit(void)
-{
- platform_driver_unregister(&bfin_flash_driver);
-}
-module_exit(bfin_flash_exit);
+module_platform_driver(bfin_flash_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("MTD map driver for Blackfins with flash/ethernet on same async bank");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 18:52:40 +0000