mtd: maps: remove bfin-async-flash driver
The blackfin architecture is getting removed, so this driver has become obsolete. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
This commit is contained in:
Arnd Bergmann
Boris Brezillon
parent
148a1a5d74
commit
5741a164ff
|
|
@ -334,16 +334,6 @@ config MTD_PCMCIA_ANONYMOUS
|
|||
|
||||
If unsure, say N.
|
||||
|
||||
config MTD_BFIN_ASYNC
|
||||
tristate "Blackfin BF533-STAMP Flash Chip Support"
|
||||
depends on BFIN533_STAMP && MTD_CFI && MTD_COMPLEX_MAPPINGS
|
||||
default y
|
||||
help
|
||||
Map driver which allows for simultaneous utilization of
|
||||
ethernet and CFI parallel flash.
|
||||
|
||||
If compiled as a module, it will be called bfin-async-flash.
|
||||
|
||||
config MTD_GPIO_ADDR
|
||||
tristate "GPIO-assisted Flash Chip Support"
|
||||
depends on GPIOLIB || COMPILE_TEST
|
||||
|
|
|
|||
|
|
@ -42,7 +42,6 @@ obj-$(CONFIG_MTD_SCB2_FLASH) += scb2_flash.o
|
|||
obj-$(CONFIG_MTD_IXP4XX) += ixp4xx.o
|
||||
obj-$(CONFIG_MTD_PLATRAM) += plat-ram.o
|
||||
obj-$(CONFIG_MTD_INTEL_VR_NOR) += intel_vr_nor.o
|
||||
obj-$(CONFIG_MTD_BFIN_ASYNC) += bfin-async-flash.o
|
||||
obj-$(CONFIG_MTD_RBTX4939) += rbtx4939-flash.o
|
||||
obj-$(CONFIG_MTD_VMU) += vmu-flash.o
|
||||
obj-$(CONFIG_MTD_GPIO_ADDR) += gpio-addr-flash.o
|
||||
|
|
|
|||
|
|
@ -1,196 +0,0 @@
|
|||
/*
|
||||
* drivers/mtd/maps/bfin-async-flash.c
|
||||
*
|
||||
* Handle the case where flash memory and ethernet mac/phy are
|
||||
* mapped onto the same async bank. The BF533-STAMP does this
|
||||
* for example. All board-specific configuration goes in your
|
||||
* board resources file.
|
||||
*
|
||||
* Copyright 2000 Nicolas Pitre <nico@fluxnic.net>
|
||||
* Copyright 2005-2008 Analog Devices Inc.
|
||||
*
|
||||
* Enter bugs at http://blackfin.uclinux.org/
|
||||
*
|
||||
* Licensed under the GPL-2 or later.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/mtd/mtd.h>
|
||||
#include <linux/mtd/map.h>
|
||||
#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>
|
||||
#include <linux/gpio.h>
|
||||
#include <linux/io.h>
|
||||
#include <asm/unaligned.h>
|
||||
|
||||
#define pr_devinit(fmt, args...) \
|
||||
({ static const char __fmt[] = fmt; printk(__fmt, ## args); })
|
||||
|
||||
#define DRIVER_NAME "bfin-async-flash"
|
||||
|
||||
struct async_state {
|
||||
struct mtd_info *mtd;
|
||||
struct map_info map;
|
||||
int enet_flash_pin;
|
||||
uint32_t flash_ambctl0, flash_ambctl1;
|
||||
uint32_t save_ambctl0, save_ambctl1;
|
||||
unsigned long irq_flags;
|
||||
};
|
||||
|
||||
static void switch_to_flash(struct async_state *state)
|
||||
{
|
||||
local_irq_save(state->irq_flags);
|
||||
|
||||
gpio_set_value(state->enet_flash_pin, 0);
|
||||
|
||||
state->save_ambctl0 = bfin_read_EBIU_AMBCTL0();
|
||||
state->save_ambctl1 = bfin_read_EBIU_AMBCTL1();
|
||||
bfin_write_EBIU_AMBCTL0(state->flash_ambctl0);
|
||||
bfin_write_EBIU_AMBCTL1(state->flash_ambctl1);
|
||||
SSYNC();
|
||||
}
|
||||
|
||||
static void switch_back(struct async_state *state)
|
||||
{
|
||||
bfin_write_EBIU_AMBCTL0(state->save_ambctl0);
|
||||
bfin_write_EBIU_AMBCTL1(state->save_ambctl1);
|
||||
SSYNC();
|
||||
|
||||
gpio_set_value(state->enet_flash_pin, 1);
|
||||
|
||||
local_irq_restore(state->irq_flags);
|
||||
}
|
||||
|
||||
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;
|
||||
map_word test;
|
||||
|
||||
switch_to_flash(state);
|
||||
|
||||
word = readw(map->virt + ofs);
|
||||
|
||||
switch_back(state);
|
||||
|
||||
test.x[0] = word;
|
||||
return test;
|
||||
}
|
||||
|
||||
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;
|
||||
|
||||
switch_to_flash(state);
|
||||
|
||||
memcpy(to, map->virt + from, len);
|
||||
|
||||
switch_back(state);
|
||||
}
|
||||
|
||||
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;
|
||||
|
||||
d = d1.x[0];
|
||||
|
||||
switch_to_flash(state);
|
||||
|
||||
writew(d, map->virt + ofs);
|
||||
SSYNC();
|
||||
|
||||
switch_back(state);
|
||||
}
|
||||
|
||||
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;
|
||||
|
||||
switch_to_flash(state);
|
||||
|
||||
memcpy(map->virt + to, from, len);
|
||||
SSYNC();
|
||||
|
||||
switch_back(state);
|
||||
}
|
||||
|
||||
static const char * const part_probe_types[] = {
|
||||
"cmdlinepart", "RedBoot", NULL };
|
||||
|
||||
static int bfin_flash_probe(struct platform_device *pdev)
|
||||
{
|
||||
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;
|
||||
|
||||
state = kzalloc(sizeof(*state), GFP_KERNEL);
|
||||
if (!state)
|
||||
return -ENOMEM;
|
||||
|
||||
state->map.name = DRIVER_NAME;
|
||||
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 = resource_size(memory);
|
||||
state->map.virt = (void __iomem *)memory->start;
|
||||
state->map.phys = memory->start;
|
||||
state->map.map_priv_1 = (unsigned long)state;
|
||||
state->enet_flash_pin = platform_get_irq(pdev, 0);
|
||||
state->flash_ambctl0 = flash_ambctl->start;
|
||||
state->flash_ambctl1 = flash_ambctl->end;
|
||||
|
||||
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) {
|
||||
gpio_free(state->enet_flash_pin);
|
||||
kfree(state);
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
mtd_device_parse_register(state->mtd, part_probe_types, NULL,
|
||||
pdata->parts, pdata->nr_parts);
|
||||
|
||||
platform_set_drvdata(pdev, state);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int bfin_flash_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct async_state *state = platform_get_drvdata(pdev);
|
||||
gpio_free(state->enet_flash_pin);
|
||||
mtd_device_unregister(state->mtd);
|
||||
map_destroy(state->mtd);
|
||||
kfree(state);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver bfin_flash_driver = {
|
||||
.probe = bfin_flash_probe,
|
||||
.remove = bfin_flash_remove,
|
||||
.driver = {
|
||||
.name = DRIVER_NAME,
|
||||
},
|
||||
};
|
||||
|
||||
module_platform_driver(bfin_flash_driver);
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DESCRIPTION("MTD map driver for Blackfins with flash/ethernet on same async bank");
|
||||
Loading…
Reference in New Issue