mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
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/*
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* Bifferboard RDC321x platform devices
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*
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* Copyright (C) 2010 bifferos@yahoo.co.uk
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#include <linux/init.h>
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#include <linux/mtd/physmap.h>
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#include <linux/input.h>
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#include <asm/rdc_boards.h>
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static int __init parse_bifferboard_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long plat_data)
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{
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int res;
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size_t len;
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struct mtd_partition *rdc_flash_parts;
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u32 kernel_len;
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u16 tmp;
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if (master->size == 0x100000)
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kernel_len = master->size - 0x10000;
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else {
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res = master->read(master, 0x4000 + 1036, 2, &len, (char *) &tmp);
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if (res)
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return res;
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kernel_len = tmp * master->erasesize;
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}
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rdc_flash_parts = kzalloc(sizeof(struct mtd_partition) * 4, GFP_KERNEL);
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*pparts = rdc_flash_parts;
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rdc_flash_parts[0].name = "biffboot";
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rdc_flash_parts[0].offset = master->size - 0x10000;
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rdc_flash_parts[0].size = 0x10000;
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rdc_flash_parts[0].mask_flags = MTD_WRITEABLE;
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rdc_flash_parts[1].name = "firmware";
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rdc_flash_parts[1].offset = 0;
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rdc_flash_parts[1].size = rdc_flash_parts[0].offset;
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rdc_flash_parts[2].name = "kernel";
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rdc_flash_parts[2].offset = 0x00000000;
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rdc_flash_parts[2].size = kernel_len;
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if (master->size == 0x100000)
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return 2;
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rdc_flash_parts[3].name = "rootfs";
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rdc_flash_parts[3].offset = MTDPART_OFS_APPEND;
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rdc_flash_parts[3].size = rdc_flash_parts[1].size - rdc_flash_parts[2].size;
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return 4;
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}
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struct mtd_part_parser __initdata bifferboard_parser = {
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.owner = THIS_MODULE,
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.parse_fn = parse_bifferboard_partitions,
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.name = "Bifferboard",
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};
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static int __init bifferboard_setup(void)
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{
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return register_mtd_parser(&bifferboard_parser);
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}
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arch_initcall(bifferboard_setup);
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