From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- drivers/mtd/maps/mbx860.c | 100 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 drivers/mtd/maps/mbx860.c (limited to 'drivers/mtd/maps/mbx860.c') diff --git a/drivers/mtd/maps/mbx860.c b/drivers/mtd/maps/mbx860.c new file mode 100644 index 00000000000..c5c6901a476 --- /dev/null +++ b/drivers/mtd/maps/mbx860.c @@ -0,0 +1,100 @@ +/* + * $Id: mbx860.c,v 1.8 2004/11/04 13:24:15 gleixner Exp $ + * + * Handle mapping of the flash on MBX860 boards + * + * Author: Anton Todorov + * Copyright: (C) 2001 Emness Technology + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include + + +#define WINDOW_ADDR 0xfe000000 +#define WINDOW_SIZE 0x00200000 + +/* Flash / Partition sizing */ +#define MAX_SIZE_KiB 8192 +#define BOOT_PARTITION_SIZE_KiB 512 +#define KERNEL_PARTITION_SIZE_KiB 5632 +#define APP_PARTITION_SIZE_KiB 2048 + +#define NUM_PARTITIONS 3 + +/* partition_info gives details on the logical partitions that the split the + * single flash device into. If the size if zero we use up to the end of the + * device. */ +static struct mtd_partition partition_info[]={ + { .name = "MBX flash BOOT partition", + .offset = 0, + .size = BOOT_PARTITION_SIZE_KiB*1024 }, + { .name = "MBX flash DATA partition", + .offset = BOOT_PARTITION_SIZE_KiB*1024, + .size = (KERNEL_PARTITION_SIZE_KiB)*1024 }, + { .name = "MBX flash APPLICATION partition", + .offset = (BOOT_PARTITION_SIZE_KiB+KERNEL_PARTITION_SIZE_KiB)*1024 } +}; + + +static struct mtd_info *mymtd; + +struct map_info mbx_map = { + .name = "MBX flash", + .size = WINDOW_SIZE, + .phys = WINDOW_ADDR, + .bankwidth = 4, +}; + +int __init init_mbx(void) +{ + printk(KERN_NOTICE "Motorola MBX flash device: 0x%x at 0x%x\n", WINDOW_SIZE*4, WINDOW_ADDR); + mbx_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE * 4); + + if (!mbx_map.virt) { + printk("Failed to ioremap\n"); + return -EIO; + } + simple_map_init(&mbx_map); + + mymtd = do_map_probe("jedec_probe", &mbx_map); + if (mymtd) { + mymtd->owner = THIS_MODULE; + add_mtd_device(mymtd); + add_mtd_partitions(mymtd, partition_info, NUM_PARTITIONS); + return 0; + } + + iounmap((void *)mbx_map.virt); + return -ENXIO; +} + +static void __exit cleanup_mbx(void) +{ + if (mymtd) { + del_mtd_device(mymtd); + map_destroy(mymtd); + } + if (mbx_map.virt) { + iounmap((void *)mbx_map.virt); + mbx_map.virt = 0; + } +} + +module_init(init_mbx); +module_exit(cleanup_mbx); + +MODULE_AUTHOR("Anton Todorov "); +MODULE_DESCRIPTION("MTD map driver for Motorola MBX860 board"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3-70-g09d2