Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2010 |
| 3 | * Texas Instruments, <www.ti.com> |
| 4 | * |
| 5 | * Aneesh V <aneesh@ti.com> |
| 6 | * |
| 7 | * See file CREDITS for list of people who contributed to this |
| 8 | * project. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or |
| 11 | * modify it under the terms of the GNU General Public License as |
| 12 | * published by the Free Software Foundation; either version 2 of |
| 13 | * the License, or (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 23 | * MA 02111-1307 USA |
| 24 | */ |
| 25 | #include <common.h> |
| 26 | #include <asm/u-boot.h> |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 27 | #include <asm/utils.h> |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 28 | #include <asm/arch/sys_proto.h> |
Simon Schwarz | bb085b8 | 2011-09-14 15:29:26 -0400 | [diff] [blame^] | 29 | #include <nand.h> |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 30 | #include <mmc.h> |
| 31 | #include <fat.h> |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 32 | #include <timestamp_autogenerated.h> |
| 33 | #include <version_autogenerated.h> |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 34 | #include <asm/omap_common.h> |
| 35 | #include <asm/arch/mmc_host_def.h> |
| 36 | #include <i2c.h> |
| 37 | #include <image.h> |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 38 | |
| 39 | DECLARE_GLOBAL_DATA_PTR; |
| 40 | |
| 41 | /* Define global data structure pointer to it*/ |
| 42 | static gd_t gdata __attribute__ ((section(".data"))); |
| 43 | static bd_t bdata __attribute__ ((section(".data"))); |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 44 | static const char *image_name; |
| 45 | static u8 image_os; |
| 46 | static u32 image_load_addr; |
| 47 | static u32 image_entry_point; |
| 48 | static u32 image_size; |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 49 | |
| 50 | inline void hang(void) |
| 51 | { |
| 52 | puts("### ERROR ### Please RESET the board ###\n"); |
| 53 | for (;;) |
| 54 | ; |
| 55 | } |
| 56 | |
| 57 | void board_init_f(ulong dummy) |
| 58 | { |
| 59 | /* |
| 60 | * We call relocate_code() with relocation target same as the |
| 61 | * CONFIG_SYS_SPL_TEXT_BASE. This will result in relocation getting |
| 62 | * skipped. Instead, only .bss initialization will happen. That's |
| 63 | * all we need |
| 64 | */ |
| 65 | debug(">>board_init_f()\n"); |
| 66 | relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE); |
| 67 | } |
| 68 | |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 69 | #ifdef CONFIG_GENERIC_MMC |
| 70 | int board_mmc_init(bd_t *bis) |
| 71 | { |
| 72 | switch (omap_boot_device()) { |
| 73 | case BOOT_DEVICE_MMC1: |
| 74 | omap_mmc_init(0); |
| 75 | break; |
| 76 | case BOOT_DEVICE_MMC2: |
| 77 | omap_mmc_init(1); |
| 78 | break; |
| 79 | } |
| 80 | return 0; |
| 81 | } |
| 82 | #endif |
| 83 | |
| 84 | static void parse_image_header(const struct image_header *header) |
| 85 | { |
| 86 | u32 header_size = sizeof(struct image_header); |
| 87 | |
| 88 | if (__be32_to_cpu(header->ih_magic) == IH_MAGIC) { |
| 89 | image_size = __be32_to_cpu(header->ih_size) + header_size; |
| 90 | image_entry_point = __be32_to_cpu(header->ih_load); |
| 91 | /* Load including the header */ |
| 92 | image_load_addr = image_entry_point - header_size; |
| 93 | image_os = header->ih_os; |
| 94 | image_name = (const char *)&header->ih_name; |
| 95 | debug("spl: payload image: %s load addr: 0x%x size: %d\n", |
| 96 | image_name, image_load_addr, image_size); |
| 97 | } else { |
| 98 | /* Signature not found - assume u-boot.bin */ |
| 99 | printf("mkimage signature not found - ih_magic = %x\n", |
| 100 | header->ih_magic); |
| 101 | puts("Assuming u-boot.bin ..\n"); |
| 102 | /* Let's assume U-Boot will not be more than 200 KB */ |
| 103 | image_size = 200 * 1024; |
| 104 | image_entry_point = CONFIG_SYS_TEXT_BASE; |
| 105 | image_load_addr = CONFIG_SYS_TEXT_BASE; |
| 106 | image_os = IH_OS_U_BOOT; |
| 107 | image_name = "U-Boot"; |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | static void mmc_load_image_raw(struct mmc *mmc) |
| 112 | { |
| 113 | u32 image_size_sectors, err; |
| 114 | const struct image_header *header; |
| 115 | |
| 116 | header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - |
| 117 | sizeof(struct image_header)); |
| 118 | |
| 119 | /* read image header to find the image size & load address */ |
| 120 | err = mmc->block_dev.block_read(0, |
| 121 | CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, 1, |
| 122 | (void *)header); |
| 123 | |
| 124 | if (err <= 0) |
| 125 | goto end; |
| 126 | |
| 127 | parse_image_header(header); |
| 128 | |
| 129 | /* convert size to sectors - round up */ |
| 130 | image_size_sectors = (image_size + MMCSD_SECTOR_SIZE - 1) / |
| 131 | MMCSD_SECTOR_SIZE; |
| 132 | |
| 133 | /* Read the header too to avoid extra memcpy */ |
| 134 | err = mmc->block_dev.block_read(0, |
| 135 | CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, |
| 136 | image_size_sectors, (void *)image_load_addr); |
| 137 | |
| 138 | end: |
| 139 | if (err <= 0) { |
| 140 | printf("spl: mmc blk read err - %d\n", err); |
| 141 | hang(); |
| 142 | } |
| 143 | } |
| 144 | |
| 145 | static void mmc_load_image_fat(struct mmc *mmc) |
| 146 | { |
| 147 | s32 err; |
| 148 | struct image_header *header; |
| 149 | |
| 150 | header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - |
| 151 | sizeof(struct image_header)); |
| 152 | |
| 153 | err = fat_register_device(&mmc->block_dev, |
| 154 | CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION); |
| 155 | if (err) { |
| 156 | printf("spl: fat register err - %d\n", err); |
| 157 | hang(); |
| 158 | } |
| 159 | |
| 160 | err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME, |
| 161 | (u8 *)header, sizeof(struct image_header)); |
| 162 | if (err <= 0) |
| 163 | goto end; |
| 164 | |
| 165 | parse_image_header(header); |
| 166 | |
| 167 | err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME, |
| 168 | (u8 *)image_load_addr, 0); |
| 169 | |
| 170 | end: |
| 171 | if (err <= 0) { |
| 172 | printf("spl: error reading image %s, err - %d\n", |
| 173 | CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME, err); |
| 174 | hang(); |
| 175 | } |
| 176 | } |
Simon Schwarz | bb085b8 | 2011-09-14 15:29:26 -0400 | [diff] [blame^] | 177 | static void mmc_load_image(void) __attribute__((unused)); |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 178 | static void mmc_load_image(void) |
| 179 | { |
| 180 | struct mmc *mmc; |
| 181 | int err; |
| 182 | u32 boot_mode; |
| 183 | |
| 184 | mmc_initialize(gd->bd); |
| 185 | /* We register only one device. So, the dev id is always 0 */ |
| 186 | mmc = find_mmc_device(0); |
| 187 | if (!mmc) { |
| 188 | puts("spl: mmc device not found!!\n"); |
| 189 | hang(); |
| 190 | } |
| 191 | |
| 192 | err = mmc_init(mmc); |
| 193 | if (err) { |
| 194 | printf("spl: mmc init failed: err - %d\n", err); |
| 195 | hang(); |
| 196 | } |
| 197 | |
| 198 | boot_mode = omap_boot_mode(); |
| 199 | if (boot_mode == MMCSD_MODE_RAW) { |
| 200 | debug("boot mode - RAW\n"); |
| 201 | mmc_load_image_raw(mmc); |
| 202 | } else if (boot_mode == MMCSD_MODE_FAT) { |
| 203 | debug("boot mode - FAT\n"); |
| 204 | mmc_load_image_fat(mmc); |
| 205 | } else { |
| 206 | puts("spl: wrong MMC boot mode\n"); |
| 207 | hang(); |
| 208 | } |
| 209 | } |
| 210 | |
Simon Schwarz | bb085b8 | 2011-09-14 15:29:26 -0400 | [diff] [blame^] | 211 | #ifdef CONFIG_SPL_NAND_SUPPORT |
| 212 | static void nand_load_image(void) __attribute__ ((unused)); |
| 213 | static void nand_load_image(void) |
| 214 | { |
| 215 | struct image_header *header; |
| 216 | |
| 217 | gpmc_init(); |
| 218 | nand_init(); |
| 219 | |
| 220 | /*use CONFIG_SYS_TEXT_BASE as temporary storage area */ |
| 221 | header = (struct image_header *)(CONFIG_SYS_TEXT_BASE); |
| 222 | |
| 223 | #ifdef CONFIG_NAND_ENV_DST |
| 224 | nand_spl_load_image(CONFIG_ENV_OFFSET, |
| 225 | CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); |
| 226 | parse_image_header(header); |
| 227 | nand_spl_load_image(CONFIG_ENV_OFFSET, image_size, |
| 228 | (void *)image_load_addr); |
| 229 | #ifdef CONFIG_ENV_OFFSET_REDUND |
| 230 | nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, |
| 231 | CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); |
| 232 | parse_image_header(header); |
| 233 | nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, image_size, |
| 234 | (void *)image_load_addr); |
| 235 | #endif |
| 236 | #endif |
| 237 | /* Load u-boot */ |
| 238 | nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS, |
| 239 | CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); |
| 240 | parse_image_header(header); |
| 241 | nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS, |
| 242 | image_size, (void *)image_load_addr); |
| 243 | nand_deselect(); |
| 244 | } |
| 245 | #endif /* CONFIG_SPL_NAND_SUPPORT */ |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 246 | void jump_to_image_no_args(void) |
| 247 | { |
| 248 | typedef void (*image_entry_noargs_t)(void)__attribute__ ((noreturn)); |
| 249 | image_entry_noargs_t image_entry = |
| 250 | (image_entry_noargs_t) image_entry_point; |
| 251 | |
Simon Schwarz | bb085b8 | 2011-09-14 15:29:26 -0400 | [diff] [blame^] | 252 | debug("image entry point: 0x%X\n", image_entry_point); |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 253 | image_entry(); |
| 254 | } |
| 255 | |
| 256 | void jump_to_image_no_args(void) __attribute__ ((noreturn)); |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 257 | void board_init_r(gd_t *id, ulong dummy) |
| 258 | { |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 259 | u32 boot_device; |
| 260 | debug(">>spl:board_init_r()\n"); |
| 261 | |
| 262 | timer_init(); |
| 263 | i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); |
| 264 | |
| 265 | boot_device = omap_boot_device(); |
| 266 | debug("boot device - %d\n", boot_device); |
| 267 | switch (boot_device) { |
Simon Schwarz | bb085b8 | 2011-09-14 15:29:26 -0400 | [diff] [blame^] | 268 | #ifdef CONFIG_SPL_MMC_SUPPORT |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 269 | case BOOT_DEVICE_MMC1: |
| 270 | case BOOT_DEVICE_MMC2: |
| 271 | mmc_load_image(); |
| 272 | break; |
Simon Schwarz | bb085b8 | 2011-09-14 15:29:26 -0400 | [diff] [blame^] | 273 | #endif |
| 274 | #ifdef CONFIG_SPL_NAND_SUPPORT |
| 275 | case BOOT_DEVICE_NAND: |
| 276 | nand_load_image(); |
| 277 | break; |
| 278 | #endif |
Aneesh V | 8cf686e | 2011-07-21 09:10:27 -0400 | [diff] [blame] | 279 | default: |
| 280 | printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device); |
| 281 | hang(); |
| 282 | break; |
| 283 | } |
| 284 | |
| 285 | switch (image_os) { |
| 286 | case IH_OS_U_BOOT: |
| 287 | debug("Jumping to U-Boot\n"); |
| 288 | jump_to_image_no_args(); |
| 289 | break; |
| 290 | default: |
| 291 | puts("Unsupported OS image.. Jumping nevertheless..\n"); |
| 292 | jump_to_image_no_args(); |
| 293 | } |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 294 | } |
| 295 | |
Simon Schwarz | 63ffcfc | 2011-09-14 15:14:46 -0400 | [diff] [blame] | 296 | /* This requires UART clocks to be enabled */ |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 297 | void preloader_console_init(void) |
| 298 | { |
| 299 | const char *u_boot_rev = U_BOOT_VERSION; |
| 300 | char rev_string_buffer[50]; |
| 301 | |
| 302 | gd = &gdata; |
| 303 | gd->bd = &bdata; |
| 304 | gd->flags |= GD_FLG_RELOC; |
| 305 | gd->baudrate = CONFIG_BAUDRATE; |
| 306 | |
Aneesh V | bcae721 | 2011-07-21 09:10:21 -0400 | [diff] [blame] | 307 | serial_init(); /* serial communications setup */ |
| 308 | |
| 309 | /* Avoid a second "U-Boot" coming from this string */ |
| 310 | u_boot_rev = &u_boot_rev[7]; |
| 311 | |
| 312 | printf("\nU-Boot SPL %s (%s - %s)\n", u_boot_rev, U_BOOT_DATE, |
| 313 | U_BOOT_TIME); |
| 314 | omap_rev_string(rev_string_buffer); |
| 315 | printf("Texas Instruments %s\n", rev_string_buffer); |
| 316 | } |