|
@@ -1,164 +0,0 @@
|
|
-/*
|
|
|
|
- * $Id: cstm_mips_ixx.c,v 1.14 2005/11/07 11:14:26 gleixner Exp $
|
|
|
|
- *
|
|
|
|
- * 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 accomodate more than one flash type per board.
|
|
|
|
- *
|
|
|
|
- * Copyright 2000 MontaVista Software 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/module.h>
|
|
|
|
-#include <linux/types.h>
|
|
|
|
-#include <linux/kernel.h>
|
|
|
|
-#include <linux/init.h>
|
|
|
|
-#include <asm/io.h>
|
|
|
|
-#include <linux/mtd/mtd.h>
|
|
|
|
-#include <linux/mtd/map.h>
|
|
|
|
-#include <linux/mtd/partitions.h>
|
|
|
|
-#include <linux/delay.h>
|
|
|
|
-
|
|
|
|
-/* board and partition description */
|
|
|
|
-
|
|
|
|
-#define MAX_PHYSMAP_PARTITIONS 8
|
|
|
|
-struct cstm_mips_ixx_info {
|
|
|
|
- char *name;
|
|
|
|
- unsigned long window_addr;
|
|
|
|
- unsigned long window_size;
|
|
|
|
- int bankwidth;
|
|
|
|
- int num_partitions;
|
|
|
|
-};
|
|
|
|
-
|
|
|
|
-#define PHYSMAP_NUMBER 1 // number of board desc structs needed, one per contiguous flash type
|
|
|
|
-const struct cstm_mips_ixx_info cstm_mips_ixx_board_desc[PHYSMAP_NUMBER] =
|
|
|
|
-{
|
|
|
|
- {
|
|
|
|
- "MTD flash", // name
|
|
|
|
- CONFIG_MTD_CSTM_MIPS_IXX_START, // window_addr
|
|
|
|
- CONFIG_MTD_CSTM_MIPS_IXX_LEN, // window_size
|
|
|
|
- CONFIG_MTD_CSTM_MIPS_IXX_BUSWIDTH, // bankwidth
|
|
|
|
- 1, // num_partitions
|
|
|
|
- },
|
|
|
|
-
|
|
|
|
-};
|
|
|
|
-static struct mtd_partition cstm_mips_ixx_partitions[PHYSMAP_NUMBER][MAX_PHYSMAP_PARTITIONS] = {
|
|
|
|
-{
|
|
|
|
- {
|
|
|
|
- .name = "main partition",
|
|
|
|
- .size = CONFIG_MTD_CSTM_MIPS_IXX_LEN,
|
|
|
|
- .offset = 0,
|
|
|
|
- },
|
|
|
|
-},
|
|
|
|
-};
|
|
|
|
-
|
|
|
|
-struct map_info cstm_mips_ixx_map[PHYSMAP_NUMBER];
|
|
|
|
-
|
|
|
|
-int __init init_cstm_mips_ixx(void)
|
|
|
|
-{
|
|
|
|
- int i;
|
|
|
|
- int jedec;
|
|
|
|
- struct mtd_info *mymtd;
|
|
|
|
- struct mtd_partition *parts;
|
|
|
|
-
|
|
|
|
- /* Initialize mapping */
|
|
|
|
- for (i=0;i<PHYSMAP_NUMBER;i++) {
|
|
|
|
- printk(KERN_NOTICE "cstm_mips_ixx flash device: 0x%lx at 0x%lx\n",
|
|
|
|
- cstm_mips_ixx_board_desc[i].window_size, cstm_mips_ixx_board_desc[i].window_addr);
|
|
|
|
-
|
|
|
|
-
|
|
|
|
- cstm_mips_ixx_map[i].phys = cstm_mips_ixx_board_desc[i].window_addr;
|
|
|
|
- cstm_mips_ixx_map[i].virt = ioremap(cstm_mips_ixx_board_desc[i].window_addr, cstm_mips_ixx_board_desc[i].window_size);
|
|
|
|
- if (!cstm_mips_ixx_map[i].virt) {
|
|
|
|
- int j = 0;
|
|
|
|
- printk(KERN_WARNING "Failed to ioremap\n");
|
|
|
|
- for (j = 0; j < i; j++) {
|
|
|
|
- if (cstm_mips_ixx_map[j].virt) {
|
|
|
|
- iounmap(cstm_mips_ixx_map[j].virt);
|
|
|
|
- cstm_mips_ixx_map[j].virt = NULL;
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
- return -EIO;
|
|
|
|
- }
|
|
|
|
- cstm_mips_ixx_map[i].name = cstm_mips_ixx_board_desc[i].name;
|
|
|
|
- cstm_mips_ixx_map[i].size = cstm_mips_ixx_board_desc[i].window_size;
|
|
|
|
- cstm_mips_ixx_map[i].bankwidth = cstm_mips_ixx_board_desc[i].bankwidth;
|
|
|
|
- simple_map_init(&cstm_mips_ixx_map[i]);
|
|
|
|
- //printk(KERN_NOTICE "cstm_mips_ixx: ioremap is %x\n",(unsigned int)(cstm_mips_ixx_map[i].virt));
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- for (i=0;i<PHYSMAP_NUMBER;i++) {
|
|
|
|
- parts = &cstm_mips_ixx_partitions[i][0];
|
|
|
|
- jedec = 0;
|
|
|
|
- mymtd = (struct mtd_info *)do_map_probe("cfi_probe", &cstm_mips_ixx_map[i]);
|
|
|
|
- //printk(KERN_NOTICE "phymap %d cfi_probe: mymtd is %x\n",i,(unsigned int)mymtd);
|
|
|
|
- if (!mymtd) {
|
|
|
|
- jedec = 1;
|
|
|
|
- mymtd = (struct mtd_info *)do_map_probe("jedec_probe", &cstm_mips_ixx_map[i]);
|
|
|
|
- printk(KERN_NOTICE "cstm_mips_ixx %d jedec: mymtd is %x\n",i,(unsigned int)mymtd);
|
|
|
|
- }
|
|
|
|
- if (mymtd) {
|
|
|
|
- mymtd->owner = THIS_MODULE;
|
|
|
|
-
|
|
|
|
- cstm_mips_ixx_map[i].map_priv_2 = (unsigned long)mymtd;
|
|
|
|
- add_mtd_partitions(mymtd, parts, cstm_mips_ixx_board_desc[i].num_partitions);
|
|
|
|
- }
|
|
|
|
- else {
|
|
|
|
- for (i = 0; i < PHYSMAP_NUMBER; i++) {
|
|
|
|
- if (cstm_mips_ixx_map[i].virt) {
|
|
|
|
- iounmap(cstm_mips_ixx_map[i].virt);
|
|
|
|
- cstm_mips_ixx_map[i].virt = NULL;
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
- return -ENXIO;
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
- return 0;
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-static void __exit cleanup_cstm_mips_ixx(void)
|
|
|
|
-{
|
|
|
|
- int i;
|
|
|
|
- struct mtd_info *mymtd;
|
|
|
|
-
|
|
|
|
- for (i=0;i<PHYSMAP_NUMBER;i++) {
|
|
|
|
- mymtd = (struct mtd_info *)cstm_mips_ixx_map[i].map_priv_2;
|
|
|
|
- if (mymtd) {
|
|
|
|
- del_mtd_partitions(mymtd);
|
|
|
|
- map_destroy(mymtd);
|
|
|
|
- }
|
|
|
|
- if (cstm_mips_ixx_map[i].virt) {
|
|
|
|
- iounmap((void *)cstm_mips_ixx_map[i].virt);
|
|
|
|
- cstm_mips_ixx_map[i].virt = 0;
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-module_init(init_cstm_mips_ixx);
|
|
|
|
-module_exit(cleanup_cstm_mips_ixx);
|
|
|
|
-
|
|
|
|
-
|
|
|
|
-MODULE_LICENSE("GPL");
|
|
|
|
-MODULE_AUTHOR("Alice Hennessy <ahennessy@mvista.com>");
|
|
|
|
-MODULE_DESCRIPTION("MTD map driver for MIPS boards");
|
|
|