target/linux/rdc-2.6/patches/001-rdc3210_flash_map.patch

   1 diff -urN linux-2.6.17/drivers/mtd/maps/imghdr.h linux-2.6.17.new/drivers/mtd/maps/imghdr.h
   2 --- linux-2.6.17/drivers/mtd/maps/imghdr.h      1970-01-01 01:00:00.000000000 +0100
   3 +++ linux-2.6.17.new/drivers/mtd/maps/imghdr.h  2006-09-24 20:29:20.000000000 +0200
   4 @@ -0,0 +1,25 @@
   5 +#ifndef GT_IMGHDR_H
   6 +#define GT_IMGHDR_H
   7 +
   8 +#define GTIMG_MAGIC            "GMTK"
   9 +
  10 +/* Product ID */
  11 +#define PID_RTL_AIRGO          1
  12 +#define PID_RTL_RALINK         2
  13 +#define PID_RDC_AIRGO          3
  14 +#define PID_RDC_RALINK         5       /* White Lable */
  15 +
  16 +/* Gemtek */
  17 +typedef struct
  18 +{
  19 +       UINT8           magic[4];               /* ASICII: GMTK */
  20 +       UINT32          checksum;               /* CRC32 */
  21 +       UINT32          version;                /* x.x.x.x */
  22 +       UINT32          kernelsz;               /* The size of the kernel image */
  23 +       UINT32          imagesz;                /* The length of this image file ( kernel + romfs + this header) */
  24 +       UINT32          pid;                    /* Product ID */
  25 +       UINT32          fastcksum;              /* Partial CRC32 on (First(256), medium(256), last(512)) */
  26 +       UINT32          reserved;
  27 +}gt_imghdr_t;
  28 +
  29 +#endif
  30 diff -urN linux-2.6.17/drivers/mtd/maps/Kconfig linux-2.6.17.new/drivers/mtd/maps/Kconfig
  31 --- linux-2.6.17/drivers/mtd/maps/Kconfig       2006-06-18 03:49:35.000000000 +0200
  32 +++ linux-2.6.17.new/drivers/mtd/maps/Kconfig   2006-09-24 20:28:11.000000000 +0200
  33 @@ -76,6 +76,12 @@
  34           PNC-2000 is the name of Network Camera product from PHOTRON
  35           Ltd. in Japan. It uses CFI-compliant flash.
  36
  37 +config MTD_RDC3210
  38 +       tristate "CFI Flash devcie mapped on RDC3210"
  39 +       depends on X86 && MTD_CFI && MTD_PARTITIONS
  40 +       help
  41 +         RDC-3210 is the flash device we find on Ralink reference board
  42 +
  43  config MTD_SC520CDP
  44         tristate "CFI Flash device mapped on AMD SC520 CDP"
  45         depends on X86 && MTD_CFI
  46 diff -urN linux-2.6.17/drivers/mtd/maps/Makefile linux-2.6.17.new/drivers/mtd/maps/Makefile
  47 --- linux-2.6.17/drivers/mtd/maps/Makefile      2006-06-18 03:49:35.000000000 +0200
  48 +++ linux-2.6.17.new/drivers/mtd/maps/Makefile  2006-09-24 20:26:10.000000000 +0200
  49 @@ -28,6 +28,7 @@
  50  obj-$(CONFIG_MTD_PHYSMAP)      += physmap.o
  51  obj-$(CONFIG_MTD_PNC2000)      += pnc2000.o
  52  obj-$(CONFIG_MTD_PCMCIA)       += pcmciamtd.o
  53 +obj-$(CONFIG_MTD_RDC3210)      += rdc3210.o
  54  obj-$(CONFIG_MTD_RPXLITE)      += rpxlite.o
  55  obj-$(CONFIG_MTD_TQM8XXL)      += tqm8xxl.o
  56  obj-$(CONFIG_MTD_SA1100)       += sa1100-flash.o
  57 diff -urN linux-2.6.17/drivers/mtd/maps/rdc3210.c linux-2.6.17.new/drivers/mtd/maps/rdc3210.c
  58 --- linux-2.6.17/drivers/mtd/maps/rdc3210.c     1970-01-01 01:00:00.000000000 +0100
  59 +++ linux-2.6.17.new/drivers/mtd/maps/rdc3210.c 2006-09-24 22:55:20.000000000 +0200
  60 @@ -0,0 +1,211 @@
  61 +/*******************************************************************
  62 + * Simple Flash mapping for RDC3210                                *
  63 + *                                                                 *
  64 + *                                                     2005.03.23  *
  65 + *                              Dante Su (dante_su@gemtek.com.tw)  *
  66 + *                          Copyright (C) 2005 Gemtek Corporation  *
  67 + *******************************************************************/
  68 +
  69 +#include <linux/module.h>
  70 +#include <linux/slab.h>
  71 +#include <linux/types.h>
  72 +#include <linux/kernel.h>
  73 +#include <asm/io.h>
  74 +#include <linux/mtd/mtd.h>
  75 +#include <linux/mtd/map.h>
  76 +#include <linux/mtd/partitions.h>
  77 +#include <linux/config.h>
  78 +
  79 +#define WINDOW_ADDR             0xFFC00000
  80 +#define WINDOW_SIZE             0x00400000
  81 +
  82 +#define BUSWIDTH 2
  83 +
  84 +static struct mtd_info *rdc3210_mtd_info;
  85 +
  86 +__u8  rdc3210_map_read8(struct map_info *map, unsigned long ofs)
  87 +{
  88 +        return *(__u8 *)(map->map_priv_1 + ofs);
  89 +}
  90 +
  91 +__u16 rdc3210_map_read16(struct map_info *map, unsigned long ofs)
  92 +{
  93 +        return *(__u16 *)(map->map_priv_1 + ofs);
  94 +}
  95 +
  96 +__u32 rdc3210_map_read32(struct map_info *map, unsigned long ofs)
  97 +{
  98 +        return *(__u32 *)(map->map_priv_1 + ofs);
  99 +}
 100 +
 101 +void rdc3210_map_write8(struct map_info *map, __u8 d, unsigned long adr)
 102 +{
 103 +        *(__u8 *)(map->map_priv_1 + adr) = d;
 104 +}
 105 +
 106 +void rdc3210_map_write16(struct map_info *map, __u16 d, unsigned long adr)
 107 +{
 108 +        *(__u16 *)(map->map_priv_1 + adr) = d;
 109 +}
 110 +
 111 +void rdc3210_map_write32(struct map_info *map, __u32 d, unsigned long adr)
 112 +{
 113 +        *(__u32 *)(map->map_priv_1 + adr) = d;
 114 +}
 115 +
 116 +void rdc3210_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
 117 +{
 118 +        int     i;
 119 +        u16     *dst = (u16 *)(to);
 120 +        u16     *src = (u16 *)(map->map_priv_1 + from);
 121 +
 122 +        for(i = 0; i < (len / 2); ++i)
 123 +                dst[i] = src[i];
 124 +
 125 +        if(len & 1)
 126 +        {
 127 +                printk("# WARNNING!!! rdc3210_map_copy_from has odd length\n");
 128 +                //dst[len - 1] = B0(src[i]);
 129 +        }
 130 +}
 131 +
 132 +void rdc3210_map_copy_to(struct map_info *map, void *to, unsigned long from, ssize_t len)
 133 +{
 134 +        int     i;
 135 +        u16     *dst = (u16 *)(map->map_priv_1 + to);
 136 +        u16     *src = (u16 *)(from);
 137 +
 138 +        for(i = 0; i < (len / 2); ++i)
 139 +                dst[i] = src[i];
 140 +
 141 +        if(len & 1)
 142 +        {
 143 +                printk("# WARNNING!!! rdc3210_map_copy_from has odd length\n");
 144 +                //dst[len - 1] = B0(src[i]);
 145 +        }
 146 +}
 147 +
 148 +static struct map_info rdc3210_map =
 149 +{
 150 +        .name = "RDC3210 Flash",
 151 +        .size = WINDOW_SIZE,
 152 +        .bankwidth = BUSWIDTH,
 153 +       .phys = WINDOW_ADDR,
 154 +};
 155 +
 156 +/* Dante: This is the default static mapping, however this is nothing but a hint. (Say dynamic mapping) */
 157 +static struct mtd_partition rdc3210_parts[] =
 158 +{
 159 +        { .name = "linux",   .offset = 0,          .size = 0x003C0000 },     /* 3840 KB = (Kernel + ROMFS) = (768 KB + 3072 KB) */
 160 +        { .name = "romfs",   .offset = 0x000C0000, .size = 0x00300000 },     /* 3072 KB */
 161 +        { .name = "nvram",   .offset = 0x003C0000, .size = 0x00010000 },     /*   64 KB */
 162 +        { .name = "factory", .offset = 0x003D0000, .size = 0x00010000 },     /*   64 KB */
 163 +        { .name = "bootldr", .offset = 0x003E0000, .size = 0x00020000 },     /*  128 KB */
 164 +};
 165 +
 166 +static int __init rdc3210_mtd_init(void)
 167 +{
 168 +        printk(KERN_NOTICE "flash device: 0x%x at 0x%x\n", WINDOW_SIZE, WINDOW_ADDR);
 169 +
 170 +        rdc3210_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
 171 +
 172 +        if (!rdc3210_map.virt)
 173 +        {
 174 +                printk("Failed to ioremap\n");
 175 +                return -EIO;
 176 +        }
 177 +
 178 +       simple_map_init(&rdc3210_map);
 179 +
 180 +        rdc3210_mtd_info = do_map_probe("cfi_probe", &rdc3210_map);
 181 +       /* Dante: This is for fixed map */
 182 +        if (rdc3210_mtd_info)
 183 +        {
 184 +                rdc3210_mtd_info->owner = THIS_MODULE;
 185 +                add_mtd_partitions(rdc3210_mtd_info, rdc3210_parts, sizeof(rdc3210_parts)/sizeof(rdc3210_parts[0]));
 186 +                return 0;
 187 +        }
 188 +       /* Dante: This is for dynamic mapping */
 189 +#if 0
 190 +       if (rdc3210_mtd_info)
 191 +        {       // Dante
 192 +                unsigned int    tmp;
 193 +                gt_imghdr_t     *hdr;
 194 +
 195 +                hdr = (gt_imghdr_t *)(rdc3210_map.virt);
 196 +
 197 +                if(memcmp(hdr->magic, GTIMG_MAGIC, 4))
 198 +                {
 199 +                        printk("Invalid MAGIC for Firmware Image!!!\n");
 200 +                        return -EIO;
 201 +                }
 202 +
 203 +                /* 1. Adjust Redboot */
 204 +                tmp = flashdrv_get_size() - rdc3210_parts[4].size;
 205 +                rdc3210_parts[4].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
 206 +                rdc3210_parts[4].size   = flashdrv_get_size() - rdc3210_parts[4].offset;
 207 +
 208 +                /* 2. Adjust NVRAM */
 209 +                tmp -= rdc3210_parts[3].size;
 210 +                rdc3210_parts[3].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
 211 +                rdc3210_parts[3].size   = rdc3210_parts[4].offset - rdc3210_parts[3].offset;
 212 +
 213 +                /* 3. Adjust Factory Default */
 214 +                tmp -= rdc3210_parts[2].size;
 215 +                rdc3210_parts[2].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
 216 +                rdc3210_parts[2].size   = rdc3210_parts[3].offset - rdc3210_parts[2].offset;
 217 +
 218 +                /* 4. Adjust Linux (Kernel + ROMFS) */
 219 +                rdc3210_parts[0].size   = rdc3210_parts[2].offset - rdc3210_parts[0].offset;
 220 +
 221 +                /* 5. Adjust ROMFS */
 222 +                tmp = hdr->kernelsz + sizeof(gt_imghdr_t);
 223 +                rdc3210_parts[1].offset = rdc3210_parts[0].offset + (((tmp / 32) + ((tmp % 32) ? 1 : 0)) * 32);
 224 +                rdc3210_parts[1].size   = rdc3210_parts[2].offset - rdc3210_parts[1].offset;
 225 +
 226 +                /* 1. Adjust Redboot */
 227 +                tmp = flashdrv_get_size() - rdc3210_parts[3].size;
 228 +                rdc3210_parts[3].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
 229 +                rdc3210_parts[3].size   = flashdrv_get_size() - rdc3210_parts[3].offset;
 230 +
 231 +                /* 2. Adjust NVRAM */
 232 +                tmp -= rdc3210_parts[2].size;
 233 +                rdc3210_parts[2].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
 234 +                rdc3210_parts[2].size   = rdc3210_parts[3].offset - rdc3210_parts[2].offset;
 235 +
 236 +                /* 4. Adjust Linux (Kernel + ROMFS) */
 237 +                rdc3210_parts[0].size   = rdc3210_parts[2].offset - rdc3210_parts[0].offset;
 238 +
 239 +                /* 5. Adjust ROMFS */
 240 +                tmp = hdr->kernelsz + sizeof(gt_imghdr_t);
 241 +                rdc3210_parts[1].offset = rdc3210_parts[0].offset + (((tmp / 32) + ((tmp % 32) ? 1 : 0)) * 32);
 242 +                rdc3210_parts[1].size   = rdc3210_parts[2].offset - rdc3210_parts[1].offset;
 243 +
 244 +               rdc3210_mtd_info->owner = THIS_MODULE;
 245 +                add_mtd_partitions(rdc3210_mtd_info, rdc3210_parts, sizeof(rdc3210_parts)/sizeof(rdc3210_parts[0]));
 246 +                return 0;
 247 +        }
 248 +#endif
 249 +        iounmap((void *)rdc3210_map.virt);
 250 +        return -ENXIO;
 251 +}
 252 +
 253 +static void  __exit rdc3210_mtd_exit(void)
 254 +{
 255 +        if (rdc3210_mtd_info)
 256 +        {
 257 +                del_mtd_partitions(rdc3210_mtd_info);
 258 +                map_destroy(rdc3210_mtd_info);
 259 +        }
 260 +
 261 +        if (rdc3210_map.virt)
 262 +        {
 263 +                iounmap(rdc3210_map.virt);
 264 +                rdc3210_map.virt = 0;
 265 +        }
 266 +}
 267 +
 268 +module_init(rdc3210_mtd_init);
 269 +module_exit(rdc3210_mtd_exit);
 270 +MODULE_LICENSE("GPL");
 271 +