diff options
Diffstat (limited to 'drivers/mtd/maps/pmcmsp-flash.c')
| -rw-r--r-- | drivers/mtd/maps/pmcmsp-flash.c | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/drivers/mtd/maps/pmcmsp-flash.c b/drivers/mtd/maps/pmcmsp-flash.c deleted file mode 100644 index 2051f28ddac6..000000000000 --- a/drivers/mtd/maps/pmcmsp-flash.c +++ /dev/null @@ -1,227 +0,0 @@ -/* - * Mapping of a custom board with both AMD CFI and JEDEC flash in partitions. - * Config with both CFI and JEDEC device support. - * - * Basically physmap.c with the addition of partitions and - * an array of mapping info to accommodate more than one flash type per board. - * - * Copyright 2005-2007 PMC-Sierra, Inc. - * - * 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/slab.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/map.h> -#include <linux/mtd/partitions.h> - -#include <asm/io.h> - -#include <msp_prom.h> -#include <msp_regs.h> - - -static struct mtd_info **msp_flash; -static struct mtd_partition **msp_parts; -static struct map_info *msp_maps; -static int fcnt; - -#define DEBUG_MARKER printk(KERN_NOTICE "%s[%d]\n", __func__, __LINE__) - -static int __init init_msp_flash(void) -{ - int i, j, ret = -ENOMEM; - int offset, coff; - char *env; - int pcnt; - char flash_name[] = "flash0"; - char part_name[] = "flash0_0"; - unsigned addr, size; - - /* If ELB is disabled by "ful-mux" mode, we can't get at flash */ - if ((*DEV_ID_REG & DEV_ID_SINGLE_PC) && - (*ELB_1PC_EN_REG & SINGLE_PCCARD)) { - printk(KERN_NOTICE "Single PC Card mode: no flash access\n"); - return -ENXIO; - } - - /* examine the prom environment for flash devices */ - for (fcnt = 0; (env = prom_getenv(flash_name)); fcnt++) - flash_name[5] = '0' + fcnt + 1; - - if (fcnt < 1) - return -ENXIO; - - printk(KERN_NOTICE "Found %d PMC flash devices\n", fcnt); - - msp_flash = kcalloc(fcnt, sizeof(*msp_flash), GFP_KERNEL); - if (!msp_flash) - return -ENOMEM; - - msp_parts = kcalloc(fcnt, sizeof(*msp_parts), GFP_KERNEL); - if (!msp_parts) - goto free_msp_flash; - - msp_maps = kcalloc(fcnt, sizeof(*msp_maps), GFP_KERNEL); - if (!msp_maps) - goto free_msp_parts; - - /* loop over the flash devices, initializing each */ - for (i = 0; i < fcnt; i++) { - /* examine the prom environment for flash partititions */ - part_name[5] = '0' + i; - part_name[7] = '0'; - for (pcnt = 0; (env = prom_getenv(part_name)); pcnt++) - part_name[7] = '0' + pcnt + 1; - - if (pcnt == 0) { - printk(KERN_NOTICE "Skipping flash device %d " - "(no partitions defined)\n", i); - continue; - } - - msp_parts[i] = kcalloc(pcnt, sizeof(struct mtd_partition), - GFP_KERNEL); - if (!msp_parts[i]) - goto cleanup_loop; - - /* now initialize the devices proper */ - flash_name[5] = '0' + i; - env = prom_getenv(flash_name); - - if (sscanf(env, "%x:%x", &addr, &size) < 2) { - ret = -ENXIO; - kfree(msp_parts[i]); - goto cleanup_loop; - } - addr = CPHYSADDR(addr); - - printk(KERN_NOTICE - "MSP flash device \"%s\": 0x%08x at 0x%08x\n", - flash_name, size, addr); - /* This must matchs the actual size of the flash chip */ - msp_maps[i].size = size; - msp_maps[i].phys = addr; - - /* - * Platforms have a specific limit of the size of memory - * which may be mapped for flash: - */ - if (size > CONFIG_MSP_FLASH_MAP_LIMIT) - size = CONFIG_MSP_FLASH_MAP_LIMIT; - - msp_maps[i].virt = ioremap(addr, size); - if (msp_maps[i].virt == NULL) { - ret = -ENXIO; - kfree(msp_parts[i]); - goto cleanup_loop; - } - - msp_maps[i].bankwidth = 1; - msp_maps[i].name = kstrndup(flash_name, 7, GFP_KERNEL); - if (!msp_maps[i].name) { - iounmap(msp_maps[i].virt); - kfree(msp_parts[i]); - goto cleanup_loop; - } - - for (j = 0; j < pcnt; j++) { - part_name[5] = '0' + i; - part_name[7] = '0' + j; - - env = prom_getenv(part_name); - - if (sscanf(env, "%x:%x:%n", &offset, &size, - &coff) < 2) { - ret = -ENXIO; - kfree(msp_maps[i].name); - iounmap(msp_maps[i].virt); - kfree(msp_parts[i]); - goto cleanup_loop; - } - - msp_parts[i][j].size = size; - msp_parts[i][j].offset = offset; - msp_parts[i][j].name = env + coff; - } - - /* now probe and add the device */ - simple_map_init(&msp_maps[i]); - msp_flash[i] = do_map_probe("cfi_probe", &msp_maps[i]); - if (msp_flash[i]) { - msp_flash[i]->owner = THIS_MODULE; - mtd_device_register(msp_flash[i], msp_parts[i], pcnt); - } else { - printk(KERN_ERR "map probe failed for flash\n"); - ret = -ENXIO; - kfree(msp_maps[i].name); - iounmap(msp_maps[i].virt); - kfree(msp_parts[i]); - goto cleanup_loop; - } - } - - return 0; - -cleanup_loop: - while (i--) { - mtd_device_unregister(msp_flash[i]); - map_destroy(msp_flash[i]); - kfree(msp_maps[i].name); - iounmap(msp_maps[i].virt); - kfree(msp_parts[i]); - } - kfree(msp_maps); -free_msp_parts: - kfree(msp_parts); -free_msp_flash: - kfree(msp_flash); - return ret; -} - -static void __exit cleanup_msp_flash(void) -{ - int i; - - for (i = 0; i < fcnt; i++) { - mtd_device_unregister(msp_flash[i]); - map_destroy(msp_flash[i]); - iounmap((void *)msp_maps[i].virt); - - /* free the memory */ - kfree(msp_maps[i].name); - kfree(msp_parts[i]); - } - - kfree(msp_flash); - kfree(msp_parts); - kfree(msp_maps); -} - -MODULE_AUTHOR("PMC-Sierra, Inc"); -MODULE_DESCRIPTION("MTD map driver for PMC-Sierra MSP boards"); -MODULE_LICENSE("GPL"); - -module_init(init_msp_flash); -module_exit(cleanup_msp_flash); |