+++ /dev/null
-/*
- * ar525w RDC321x platform devices
- *
- * Copyright (C) 2007-2009 OpenWrt.org
- * Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
- * Copyright (C) 2008-2009 Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
- *
- * 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 program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * 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., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- */
-
-#include <linux/init.h>
-#include <linux/mtd/physmap.h>
-#include <linux/input.h>
-#include <linux/vmalloc.h>
-#include <linux/mtd/mtd.h>
-
-#include <asm/rdc_boards.h>
-
-struct image_header {
- char magic[4]; /* ASICII: GMTK */
- u32 checksum; /* CRC32 */
- u32 version; /* x.x.x.x */
- u32 kernelsz; /* The size of the kernel image */
- u32 imagesz; /* The length of this image file ( kernel + romfs + this header) */
- u32 pid; /* Product ID */
- u32 fastcksum; /* Partial CRC32 on (First(256), medium(256), last(512)) */
- u32 reserved;
-};
-
-static struct gpio_led ar525w_leds[] = {
- { .name = "rdc321x:dmz", .gpio = 1, .active_low = 1},
-};
-static struct gpio_button ar525w_btns[] = {
- {
- .gpio = 6,
- .code = BTN_0,
- .desc = "Reset",
- .active_low = 1,
- }
-};
-
-static u32 __initdata crctab[257] = {
- 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
- 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
- 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
- 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
- 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
- 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
- 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
- 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
- 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
- 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
- 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
- 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
- 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
- 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
- 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
- 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
- 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
- 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
- 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
- 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
- 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
- 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
- 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
- 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
- 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
- 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
- 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
- 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
- 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
- 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
- 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
- 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
- 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
- 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
- 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
- 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
- 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
- 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
- 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
- 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
- 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
- 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
- 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
- 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
- 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
- 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
- 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
- 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
- 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
- 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
- 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
- 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
- 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
- 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
- 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
- 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
- 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
- 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
- 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
- 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
- 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
- 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
- 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
- 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
- 0
-};
-
-static u32 __init crc32(u8 * buf, u32 len)
-{
- register int i;
- u32 sum;
- register u32 s0;
- s0 = ~0;
- for (i = 0; i < len; i++) {
- s0 = (s0 >> 8) ^ crctab[(u8) (s0 & 0xFF) ^ buf[i]];
- }
- sum = ~s0;
- return sum;
-}
-
-static int __init fixup_ar525w_header(struct mtd_info *master, struct image_header *header)
-{
- char *buffer;
- int res;
- u32 bufferlength = header->kernelsz + sizeof(struct image_header);
- u32 len;
- char crcbuf[0x400];
-
- printk(KERN_INFO "Fixing up AR525W header, old image size: %u, new image size: %u\n",
- header->imagesz, bufferlength);
-
- buffer = vmalloc(bufferlength);
- if (!buffer) {
- printk(KERN_ERR "Can't allocate %u bytes\n", bufferlength);
- return -ENOMEM;
- }
-
- res = master->read(master, 0x0, bufferlength, &len, buffer);
- if (res || len != bufferlength)
- goto out;
-
- header = (struct image_header *) buffer;
- header->imagesz = bufferlength;
- header->checksum = 0;
- header->fastcksum = 0;
-
- memcpy(crcbuf, buffer, 0x100);
- memcpy(crcbuf + 0x100, buffer + (bufferlength >> 1) - ((bufferlength & 0x6) >> 1), 0x100);
- memcpy(crcbuf + 0x200, buffer + bufferlength - 0x200, 0x200);
-
- header->fastcksum = crc32(crcbuf, sizeof(crcbuf));
- header->checksum = crc32(buffer, bufferlength);
-
- if (master->unlock)
- master->unlock(master, 0, master->erasesize);
- res = erase_write (master, 0, master->erasesize, buffer);
- if (res)
- printk(KERN_ERR "Can't rewrite image header\n");
-
-out:
- vfree(buffer);
- return res;
-}
-
-static int __init parse_ar525w_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long plat_data)
-{
- struct image_header header;
- int res;
- size_t len;
- struct mtd_partition *rdc_flash_parts;
- struct rdc_platform_data *pdata = (struct rdc_platform_data *) plat_data;
-
- if (master->size != 0x400000) //4MB
- return -ENOSYS;
-
- res = master->read(master, 0x0, sizeof(header), &len, (char *)&header);
- if (res)
- return res;
-
- if (strncmp(header.magic, "GMTK", 4))
- return -ENOSYS;
-
- if (header.kernelsz > 0x400000 || header.kernelsz < master->erasesize) {
- printk(KERN_ERR "AR525W image header found, but seems corrupt, kernel size %u\n", header.kernelsz);
- return -EINVAL;
- }
-
- if (header.kernelsz + sizeof(header) != header.imagesz) {
- res = fixup_ar525w_header(master, &header);
- if (res)
- return res;
- }
-
- rdc_flash_parts = kzalloc(sizeof(struct mtd_partition) * 3, GFP_KERNEL);
-
- rdc_flash_parts[0].name = "firmware";
- rdc_flash_parts[0].offset = 0x0;
- rdc_flash_parts[0].size = 0x3E0000;
- rdc_flash_parts[1].name = "rootfs";
- rdc_flash_parts[1].offset = header.kernelsz + sizeof(header);
- rdc_flash_parts[1].size = rdc_flash_parts[0].size - rdc_flash_parts[1].offset;
- rdc_flash_parts[2].name = "bootloader";
- rdc_flash_parts[2].offset = 0x3E0000;
- rdc_flash_parts[2].size = 0x20000;
-
- *pparts = rdc_flash_parts;
-
- pdata->led_data.num_leds = ARRAY_SIZE(ar525w_leds);
- pdata->led_data.leds = ar525w_leds;
- pdata->button_data.nbuttons = ARRAY_SIZE(ar525w_btns);
- pdata->button_data.buttons = ar525w_btns;
-
- return 3;
-}
-
-static struct mtd_part_parser __initdata ar525w_parser = {
- .owner = THIS_MODULE,
- .parse_fn = parse_ar525w_partitions,
- .name = "AR525W",
-};
-
-static int __init ar525w_setup(void)
-{
- return register_mtd_parser(&ar525w_parser);
-}
-
-arch_initcall(ar525w_setup);
projects / 10.03 / openwrt.git / blobdiff