Florian Fainelli
18 years ago
parent
bf04aa9f69
commit
a2e2060977
@ -1,115 +1,390 @@ |
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/*
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* $Id$ |
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* Copyright (C) 2005 Gemtek Corporation, Dante Su (dante_su@gemtek.com.tw) |
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* Copyright (C) 2006 Florian Fainelli <florian@openwrt.org> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (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 Free Software |
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/*******************************************************************
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* Simple Flash mapping for RDC3210 * |
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* * |
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* 2005.03.23 * |
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* Dante Su (dante_su@gemtek.com.tw) * |
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* Copyright (C) 2005 Gemtek Corporation * |
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*******************************************************************/ |
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#include <asm/io.h> |
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#include <linux/init.h> |
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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/mtd/map.h> |
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#include <asm/io.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/vmalloc.h> |
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#include <linux/autoconf.h> |
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#include <linux/squashfs_fs.h> |
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#include <linux/jffs2.h> |
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//#include <linux/crc32.h>
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#define WINDOW_ADDR 0xFFC00000 |
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#define WINDOW_SIZE 0x00400000 |
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#define BUSWIDTH 2 |
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/* Dante: linked from linux-2.4.x/drivers/mtd/chips/flashdrv.c */ |
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extern int flashdrv_get_size(void); |
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extern int flashdrv_get_sector(int addr); |
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extern int flashdrv_get_sector_addr(int sector); |
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extern int flashdrv_get_sector_size(int sector); |
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static struct mtd_info *rdc3210_mtd; |
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__u8 rdc3210_map_read8(struct map_info *map, unsigned long ofs) |
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{ |
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return *(__u8 *)(map->map_priv_1 + ofs); |
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} |
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#define WINDOW_ADDR 0xFFC00000 |
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#define WINDOW_SIZE 0x00400000 |
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#define BUSWIDTH 2 |
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__u16 rdc3210_map_read16(struct map_info *map, unsigned long ofs) |
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{ |
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return *(__u16 *)(map->map_priv_1 + ofs); |
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} |
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__u32 rdc3210_map_read32(struct map_info *map, unsigned long ofs) |
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{ |
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return *(__u32 *)(map->map_priv_1 + ofs); |
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} |
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extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long fis_origin); |
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void rdc3210_map_write8(struct map_info *map, __u8 d, unsigned long adr) |
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{ |
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*(__u8 *)(map->map_priv_1 + adr) = d; |
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} |
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static struct mtd_partition *parsed_parts; |
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static struct mtd_info *rdc3210_mtd_info; |
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void rdc3210_map_write16(struct map_info *map, __u16 d, unsigned long adr) |
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{ |
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*(__u16 *)(map->map_priv_1 + adr) = d; |
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} |
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void rdc3210_map_write32(struct map_info *map, __u32 d, unsigned long adr) |
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{ |
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*(__u32 *)(map->map_priv_1 + adr) = d; |
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} |
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void rdc3210_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) |
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{ |
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int i; |
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u16 *dst = (u16 *)(to); |
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u16 *src = (u16 *)(map->map_priv_1 + from); |
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for(i = 0; i < (len / 2); ++i) |
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dst[i] = src[i]; |
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if(len & 1) |
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{ |
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printk("# WARNNING!!! rdc3210_map_copy_from has odd length\n"); |
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//dst[len - 1] = B0(src[i]);
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} |
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} |
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void rdc3210_map_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) |
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{ |
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int i; |
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u16 *dst = (u16 *)(map->map_priv_1 + to); |
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u16 *src = (u16 *)(from); |
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for(i = 0; i < (len / 2); ++i) |
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dst[i] = src[i]; |
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if(len & 1) |
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{ |
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printk("# WARNNING!!! rdc3210_map_copy_from has odd length\n"); |
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//dst[len - 1] = B0(src[i]);
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} |
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} |
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struct map_info rdc3210_map =
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{ |
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.name = "RDC3210 Flash", |
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.size = WINDOW_SIZE, |
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.phys = WINDOW_ADDR, |
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.bankwidth = BUSWIDTH, |
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}; |
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static struct map_info rdc3210_map = { |
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.name = "rdc3210", |
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.size = WINDOW_SIZE, |
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.bankwidth = BUSWIDTH, |
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.phys = WINDOW_ADDR, |
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/* Dante: This is the default static mapping, however this is nothing but a hint. (Say dynamic mapping) */ |
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static struct mtd_partition rdc3210_parts[] =
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{ |
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{ name: "linux", offset: 0, size: 0x003C0000 }, /* 3840 KB = (Kernel + ROMFS) = (768 KB + 3072 KB) */ |
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{ name: "romfs", offset: 0x000C0000, size: 0x00300000 }, /* 3072 KB */ |
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{ name: "nvram", offset: 0x003C0000, size: 0x00010000 }, /* 64 KB */ |
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#if RDC3210_STATIC_MAP || RDC3210_FACTORY_PRESENT |
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{ name: "factory", offset: 0x003D0000, size: 0x00010000 }, /* 64 KB */ |
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#endif |
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{ name: "bootldr", offset: 0x003E0000, size: 0x00020000 }, /* 128 KB */ |
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}; |
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static struct mtd_partition rdc3210_parts[] = { |
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{ name: "linux", offset: 0, size: 0x003C0000 }, /* 3840 KB = (Kernel + ROMFS) = (768 KB + 3072 KB) */ |
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{ name: "romfs", offset: 0x000C0000, size: 0x00300000 }, /* 3072 KB */ |
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{ name: "nvram", offset: 0x003C0000, size: 0x00010000 }, /* 64 KB */ |
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{ name: "factory", offset: 0x003D0000, size: 0x00010000 }, /* 64 KB */ |
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{ name: "bootldr", offset: 0x003E0000, size: 0x00020000, mask_flags: MTD_WRITEABLE },/* 128 KB */ |
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static __u32 crctab[257] = { |
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0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, |
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0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, |
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0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, |
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0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, |
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0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, |
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0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, |
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0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, |
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0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5, |
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0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, |
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0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, |
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0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, |
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0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, |
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0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, |
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0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f, |
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0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, |
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0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, |
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0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, |
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0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, |
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0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, |
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0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, |
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0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, |
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0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, |
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0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, |
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0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, |
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0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, |
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0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, |
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0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, |
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0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, |
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0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, |
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0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, |
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0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, |
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0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, |
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0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, |
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0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, |
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0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, |
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0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, |
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0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, |
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0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7, |
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0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, |
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0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, |
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0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, |
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0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, |
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0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, |
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0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79, |
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0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, |
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0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, |
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0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, |
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0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, |
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0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, |
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0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, |
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0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, |
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0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, |
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0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, |
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0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, |
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0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, |
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0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, |
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0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, |
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0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, |
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0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, |
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0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, |
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0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, |
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0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf, |
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0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, |
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0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d, |
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0 |
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}; |
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static int __init rdc3210_mtd_init(void) |
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static __u32 crc32(__u8 * buf, __u32 len) |
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{ |
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printk(KERN_INFO "rdc3210: 0x%08x at 0x%08x\n", WINDOW_SIZE, WINDOW_ADDR); |
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rdc3210_map.virt = ioremap_nocache(WINDOW_ADDR, WINDOW_SIZE); |
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register int i; |
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__u32 sum; |
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register __u32 s0; |
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s0 = ~0; |
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for (i = 0; i < len; i++) { |
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s0 = (s0 >> 8) ^ crctab[(__u8) (s0 & 0xFF) ^ buf[i]]; |
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} |
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sum = ~s0; |
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return sum; |
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} |
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if (!rdc3210_map.virt) { |
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printk(KERN_ERR "rdc3210: failed to ioremap\n"); |
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return -EIO; |
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static void erase_callback(struct erase_info *done) |
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{ |
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wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv; |
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wake_up(wait_q); |
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} |
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static int erase_write (struct mtd_info *mtd, unsigned long pos,
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int len, const char *buf) |
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{ |
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struct erase_info erase; |
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DECLARE_WAITQUEUE(wait, current); |
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wait_queue_head_t wait_q; |
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size_t retlen; |
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int ret; |
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/*
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* First, let's erase the flash block. |
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*/ |
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init_waitqueue_head(&wait_q); |
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erase.mtd = mtd; |
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erase.callback = erase_callback; |
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erase.addr = pos; |
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erase.len = len; |
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erase.priv = (u_long)&wait_q; |
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set_current_state(TASK_INTERRUPTIBLE); |
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add_wait_queue(&wait_q, &wait); |
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ret = mtd->erase(mtd, &erase); |
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if (ret) { |
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set_current_state(TASK_RUNNING); |
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remove_wait_queue(&wait_q, &wait); |
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printk (KERN_WARNING "erase of region [0x%lx, 0x%x] " |
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"on \"%s\" failed\n", |
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pos, len, mtd->name); |
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return ret; |
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} |
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simple_map_init(&rdc3210_map); |
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schedule(); /* Wait for erase to finish. */ |
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remove_wait_queue(&wait_q, &wait); |
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/*
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* Next, writhe data to flash. |
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*/ |
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ret = mtd->write (mtd, pos, len, &retlen, buf); |
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if (ret) |
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return ret; |
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if (retlen != len) |
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return -EIO; |
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return 0; |
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} |
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rdc3210_mtd_info = do_map_probe("cfi_probe", &rdc3210_map); |
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static int __init init_rdc3210_map(void) |
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{ |
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printk(KERN_NOTICE "flash device: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR); |
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rdc3210_map.map_priv_1 = (unsigned long)ioremap(WINDOW_ADDR, WINDOW_SIZE); |
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if (rdc3210_mtd_info) |
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if (!rdc3210_map.map_priv_1)
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{ |
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rdc3210_mtd_info->owner = THIS_MODULE; |
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int parsed_nr_parts = 0; |
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char * part_type; |
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printk("Failed to ioremap\n"); |
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return -EIO; |
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} |
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rdc3210_mtd = do_map_probe("cfi_probe", &rdc3210_map); |
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#if RDC3210_STATIC_MAP /* Dante: This is for fixed map */ |
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if (rdc3210_mtd)
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{ |
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rdc3210_mtd->module = THIS_MODULE; |
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add_mtd_partitions(rdc3210_mtd, rdc3210_parts, sizeof(rdc3210_parts)/sizeof(rdc3210_parts[0])); |
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return 0; |
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} |
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#else /* Dante: This is for dynamic mapping */ |
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#ifdef CONFIG_MTD_REDBOOT_PARTS |
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if (parsed_nr_parts == 0) |
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#include "imghdr.h" |
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if (rdc3210_mtd)
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{ // Dante
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gt_imghdr_t *hdr = (gt_imghdr_t *)(rdc3210_map.map_priv_1), *ptmp; |
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unsigned int tmp = hdr->kernelsz + sizeof(gt_imghdr_t), tmp2 = rdc3210_mtd->erasesize; |
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unsigned int tmp3 = ((tmp / 32) + ((tmp % 32) ? 1 : 0)) * 32; |
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unsigned int tmp4 = ((tmp / tmp2) + ((tmp % tmp2) ? 1 : 0)) * tmp2; |
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int len; |
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if(memcmp(hdr->magic, GTIMG_MAGIC, 4)) |
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{ |
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int ret = parse_redboot_partitions(rdc3210_mtd_info, &parsed_parts, 0); |
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if (ret > 0) |
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printk("Invalid MAGIC for Firmware Image!!!\n"); |
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return -EIO; |
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} |
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#if 0 |
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/* 1. Adjust Redboot */ |
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tmp2 = flashdrv_get_size() - rdc3210_parts[4].size; |
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rdc3210_parts[4].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp2)); |
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rdc3210_parts[4].size = flashdrv_get_size() - rdc3210_parts[4].offset; |
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/* 2. Adjust Factory Default */ |
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tmp2 -= rdc3210_parts[3].size; |
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rdc3210_parts[3].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp2)); |
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rdc3210_parts[3].size = rdc3210_parts[4].offset - rdc3210_parts[3].offset; |
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/* 1. Adjust Redboot */ |
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tmp2 = flashdrv_get_size() - rdc3210_parts[3].size; |
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rdc3210_parts[3].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp2)); |
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rdc3210_parts[3].size = flashdrv_get_size() - rdc3210_parts[3].offset; |
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#endif |
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#if RDC3210_NVRAM_IS_JFFS2 |
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/* 3. Adjust NVRAM */ |
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tmp = hdr->reserved; |
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if (!tmp) tmp = hdr->imagesz; |
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tmp2 = rdc3210_mtd->erasesize; |
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rdc3210_parts[2].offset = rdc3210_parts[0].offset + (((tmp / tmp2) + ((tmp % tmp2) ? 1 : 0)) * tmp2); |
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rdc3210_parts[2].size = rdc3210_parts[3].offset - rdc3210_parts[2].offset; |
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/* 4. Adjust Linux (Kernel + ROMFS) */ |
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rdc3210_parts[0].size = rdc3210_parts[3].offset - rdc3210_parts[0].offset; |
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/* 5. Adjust ROMFS */ |
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tmp = hdr->kernelsz + sizeof(gt_imghdr_t); |
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#else |
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/* 3. Adjust NVRAM */ |
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tmp2 -= rdc3210_parts[2].size; |
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rdc3210_parts[2].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp2)); |
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rdc3210_parts[2].size = rdc3210_parts[3].offset - rdc3210_parts[2].offset; |
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/* 4. Adjust Linux (Kernel + ROMFS) */ |
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rdc3210_parts[0].size = rdc3210_parts[2].offset - rdc3210_parts[0].offset; |
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|
||||
/* 5. Adjust ROMFS */ |
||||
tmp2 = rdc3210_mtd->erasesize; |
||||
#endif |
||||
if ((ptmp = (gt_imghdr_t *)kmalloc(tmp4, GFP_KERNEL)) == NULL) |
||||
{ |
||||
iounmap((void *)rdc3210_map.map_priv_1); |
||||
return -ENOMEM; |
||||
} |
||||
if (rdc3210_mtd->read(rdc3210_mtd, 0, tmp4, &len, (__u8 *)ptmp) || len != tmp4) |
||||
{ |
||||
kfree(ptmp); |
||||
goto oh_snap; |
||||
} |
||||
if (*(__u32 *)(((unsigned char *)ptmp)+tmp3) == SQUASHFS_MAGIC) |
||||
tmp4 = tmp3; |
||||
else if (!hdr->reserved) |
||||
{ |
||||
__u8 buf[1024]; |
||||
ptmp->reserved = hdr->imagesz; |
||||
ptmp->imagesz = tmp4; |
||||
ptmp->checksum = ptmp->fastcksum = 0; |
||||
memcpy(buf, ptmp, 0x100); |
||||
memcpy(buf + 0x100, ((__u8 *)ptmp) + ((tmp4 >> 1) - ((tmp4 & 0x6) >> 1)), 0x100); |
||||
memcpy(buf + 0x200, ((__u8 *)ptmp) + (tmp4 - 0x200), 0x200); |
||||
ptmp->fastcksum = crc32(buf, sizeof(buf)); |
||||
ptmp->checksum = crc32((__u8 *)ptmp, tmp4); |
||||
if (rdc3210_mtd->unlock) rdc3210_mtd->unlock(rdc3210_mtd, 0, tmp2); |
||||
if (len == erase_write(rdc3210_mtd, 0, tmp2, (char *)ptmp)) |
||||
{ |
||||
part_type = "RedBoot"; |
||||
parsed_nr_parts = ret; |
||||
} else { |
||||
printk(KERN_ERR "rdc3210: failed to parse RedBoot partitions, using static mapping\n"); |
||||
add_mtd_partitions(rdc3210_mtd_info, rdc3210_parts, sizeof(rdc3210_parts)/sizeof(rdc3210_parts[0])); |
||||
return -ENXIO; |
||||
kfree(ptmp); |
||||
iounmap((void *)rdc3210_map.map_priv_1); |
||||
return len; |
||||
} |
||||
if (rdc3210_mtd->sync) rdc3210_mtd->sync(rdc3210_mtd); |
||||
} |
||||
|
||||
add_mtd_partitions(rdc3210_mtd_info, parsed_parts, parsed_nr_parts); |
||||
kfree(ptmp); |
||||
rdc3210_parts[1].offset = rdc3210_parts[0].offset + tmp4; |
||||
rdc3210_parts[1].size = rdc3210_parts[2].offset - rdc3210_parts[1].offset; |
||||
|
||||
rdc3210_mtd->owner = THIS_MODULE; |
||||
add_mtd_partitions(rdc3210_mtd, rdc3210_parts, sizeof(rdc3210_parts)/sizeof(rdc3210_parts[0])); |
||||
return 0; |
||||
} |
||||
#endif |
||||
iounmap(rdc3210_map.virt); |
||||
oh_snap: |
||||
iounmap((void *)rdc3210_map.map_priv_1); |
||||
return -ENXIO; |
||||
} |
||||
|
||||
static void __exit rdc3210_mtd_cleanup(void) |
||||
static void __exit cleanup_rdc3210_map(void) |
||||
{ |
||||
if (rdc3210_mtd_info) |
||||
if (rdc3210_mtd)
|
||||
{ |
||||
del_mtd_partitions(rdc3210_mtd_info); |
||||
map_destroy(rdc3210_mtd_info); |
||||
del_mtd_partitions(rdc3210_mtd); |
||||
map_destroy(rdc3210_mtd); |
||||
} |
||||
|
||||
if (rdc3210_map.virt) { |
||||
iounmap(rdc3210_map.virt); |
||||
rdc3210_map.virt = 0; |
||||
|
||||
if (rdc3210_map.map_priv_1)
|
||||
{ |
||||
iounmap((void *)rdc3210_map.map_priv_1); |
||||
rdc3210_map.map_priv_1 = 0L; |
||||
} |
||||
} |
||||
|
||||
module_init(rdc3210_mtd_init); |
||||
module_exit(rdc3210_mtd_cleanup); |
||||
|
||||
MODULE_LICENSE("GPL"); |
||||
MODULE_DESCRIPTION("RDC3210 flash map driver"); |
||||
MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); |
||||
module_init(init_rdc3210_map); |
||||
module_exit(cleanup_rdc3210_map); |
||||
|
||||
Loading…
Reference in new issue