Questions about uboot for sdmmc Partition

#elif defined(CFG_FASTBOOT_SDMMCBSP){ int start, count; unsigned char pid; pcount = 0;#if defined(CONFIG_FUSED) /* FW BL1 for fused chip */ strcpy(ptable[pcount].name, "fwbl1"); ptable[pcount].start = 0; ptable[pcount].length = 0; ptable[pcount].flags = FASTBOOT_PTENTRY_FLAGS_USE_MOVI_CMD; pcount++;#endif /* Bootloader */ strcpy(ptable[pcount].name, "bootloader"); ptable[pcount].start = 0; ptable[pcount].length = 0; ptable[pcount].flags = FASTBOOT_PTENTRY_FLAGS_USE_MOVI_CMD; pcount++; /* Kernel */ strcpy(ptable[pcount].name, "kernel"); ptable[pcount].start = 0; ptable[pcount].length = 0; ptable[pcount].flags = FASTBOOT_PTENTRY_FLAGS_USE_MOVI_CMD; pcount++; /* Ramdisk */ strcpy(ptable[pcount].name, "ramdisk"); ptable[pcount].start = 0; ptable[pcount].length = 0x300000; ptable[pcount].flags = FASTBOOT_PTENTRY_FLAGS_USE_MOVI_CMD; pcount++; /* System */ get_mmc_part_info("0", 2, &start, &count, &pid); if (pid != 0x83)  goto part_type_error; strcpy(ptable[pcount].name, "system"); ptable[pcount].start = start * CFG_FASTBOOT_SDMMC_BLOCKSIZE; ptable[pcount].length = count * CFG_FASTBOOT_SDMMC_BLOCKSIZE; ptable[pcount].flags = FASTBOOT_PTENTRY_FLAGS_USE_MMC_CMD; pcount++; /* Data */ get_mmc_part_info("0", 3, &start, &count, &pid); if (pid != 0x83)  goto part_type_error; strcpy(ptable[pcount].name, "userdata"); ptable[pcount].start = start * CFG_FASTBOOT_SDMMC_BLOCKSIZE; ptable[pcount].length = count * CFG_FASTBOOT_SDMMC_BLOCKSIZE; ptable[pcount].flags = FASTBOOT_PTENTRY_FLAGS_USE_MMC_CMD; pcount++; /* Cache */ get_mmc_part_info("0", 4, &start, &count, &pid); if (pid != 0x83)  goto part_type_error; strcpy(ptable[pcount].name, "cache"); ptable[pcount].start = start * CFG_FASTBOOT_SDMMC_BLOCKSIZE; ptable[pcount].length = count * CFG_FASTBOOT_SDMMC_BLOCKSIZE; ptable[pcount].flags = FASTBOOT_PTENTRY_FLAGS_USE_MMC_CMD; pcount++; /* fat */ get_mmc_part_info("0", 1, &start, &count, &pid); if (pid != 0xc)  goto part_type_error; strcpy(ptable[pcount].name, "fat"); ptable[pcount].start = start * CFG_FASTBOOT_SDMMC_BLOCKSIZE; ptable[pcount].length = count * CFG_FASTBOOT_SDMMC_BLOCKSIZE; ptable[pcount].flags = FASTBOOT_PTENTRY_FLAGS_USE_MMC_CMD; pcount++;

 

Understand. The kernel and U-boot both confirm their locations by name.
The following function determines
Int movi_set_ofs (uint last)
{
Int changed = 0;

If (ofsinfo. Last! = Last ){
Ofsinfo. Last = last-(efuse_size/movi_blksize );
Ofsinfo. BL1 = ofsinfo. Last-movi_bl1_blkcnt;
Ofsinfo. Env = ofsinfo. BL1-movi_env_blkcnt;
Ofsinfo. bl2 = ofsinfo. BL1-(movi_bl2_blkcnt + movi_env_blkcnt );
Ofsinfo. kernel = ofsinfo. bl2-movi_zimage_blkcnt;
Ofsinfo. rootfs = ofsinfo. kernel-movi_rootfs_blkcnt;
Changed = 1;
}

Return changed;
}
------------ The following functions in do_movi can be attached
If (strcmp (argv [2], "U-Boot") = 0 ){
If (movi_emmc = 1) {/* emmc_4.3 */
Printf ("emmc writing bootloader to Sector % d (% d sectors)...", ofsinfo. bl2, emmc_bl_blkcnt );
Emmc_write (uint) ADDR, ofsinfo. bl2, emmc_bl_blkcnt );
} Else {/* SD/MMC */
Printf ("Writing 1st bootloader to Sector % d (% d sectors) ..", ofsinfo. BL1, movi_bl1_blkcnt );
Movi_write (uint) ADDR, ofsinfo. BL1, movi_bl1_blkcnt );
Printf ("completed \ nwriting 2nd bootloader to Sector % d (% d sectors) ..", ofsinfo. bl2, movi_bl2_blkcnt );
Movi_write (uint) ADDR, ofsinfo. bl2, movi_bl2_blkcnt );
}
Printf ("completed \ n ");

} Else if (strcmp (argv [2], "kernel") = 0 ){
If (movi_emmc = 1) {/* emmc_4.3 */
Printf ("emmc writing kernel to Sector % d (% d sectors) ..", ofsinfo. kernel, emmc_kernel_blkcnt );
Emmc_write (uint) ADDR, ofsinfo. kernel, emmc_kernel_blkcnt );
} Else {/* SD/MMC */
Printf ("Writing kernel to Sector % d (% d sectors)...", ofsinfo. kernel, movi_zimage_blkcnt );
Movi_write (uint) ADDR, ofsinfo. kernel, movi_zimage_blkcnt );
}
Printf ("completed \ n ");

}

 

For more information, see the irom documentation of s5pv210.

Well, I finally understood something. The interesting uboot is very different from wince.