mirror of https://gitee.com/openkylin/linux.git
89 lines
2.0 KiB
C
89 lines
2.0 KiB
C
/*
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* drivers/mtd/maps/pq2fads.c
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*
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* Mapping for the flash SIMM on 8272ADS and PQ2FADS board
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*
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* Author: Vitaly Bordug <vbordug@ru.mvista.com>
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*
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* 2005 (c) MontaVista Software, Inc. This file is licensed under
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* the terms of the GNU General Public License version 2. This program
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* is licensed "as is" without any warranty of any kind, whether express
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* or implied.
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*/
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <asm/io.h>
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#include <asm/ppcboot.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/map.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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/*
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NOTE: bank width and interleave relative to the installed flash
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should have been chosen within MTD_CFI_GEOMETRY options.
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*/
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#define PQ2FADS_BANK_WIDTH 4
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static struct mtd_partition pq2fads_partitions[] = {
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{
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#ifdef CONFIG_ADS8272
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.name = "HRCW",
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.size = 0x40000,
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.offset = 0,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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}, {
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.name = "User FS",
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.size = 0x5c0000,
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.offset = 0x40000,
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#else
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.name = "User FS",
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.size = 0x600000,
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.offset = 0,
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#endif
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}, {
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.name = "uImage",
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.size = 0x100000,
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.offset = 0x600000,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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}, {
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.name = "bootloader",
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.size = 0x40000,
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.offset = 0x700000,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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}, {
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.name = "bootloader env",
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.size = 0x40000,
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.offset = 0x740000,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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}
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};
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/* pointer to MPC885ADS board info data */
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extern unsigned char __res[];
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static int __init init_pq2fads_mtd(void)
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{
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bd_t *bd = (bd_t *)__res;
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physmap_configure(bd->bi_flashstart, bd->bi_flashsize, PQ2FADS_BANK_WIDTH, NULL);
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physmap_set_partitions(pq2fads_partitions,
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sizeof (pq2fads_partitions) /
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sizeof (pq2fads_partitions[0]));
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return 0;
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}
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static void __exit cleanup_pq2fads_mtd(void)
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{
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}
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module_init(init_pq2fads_mtd);
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module_exit(cleanup_pq2fads_mtd);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("MTD map and partitions for MPC8272ADS boards");
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