Mini2440之linux内核移植

/**
 * nand_do_read_ops - [INTERN] Read data with ECC
 * @mtd: MTD device structure
 * @from: offset to read from
 * @ops: oob ops structure
 *
 * Internal function. Called with chip held.
 */
static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
                struct mtd_oob_ops *ops)
{
    int chipnr, page, realpage, col, bytes, aligned, oob_required;
    struct nand_chip *chip = mtd->priv;
    int ret = 0;
    uint32_t readlen = ops->len;
    uint32_t oobreadlen = ops->ooblen;
    uint32_t max_oobsize = ops->mode == MTD_OPS_AUTO_OOB ?
        mtd->oobavail : mtd->oobsize;

    uint8_t *bufpoi, *oob, *buf;
    int use_bufpoi;
    unsigned int max_bitflips = 0;
    int retry_mode = 0;
    bool ecc_fail = false;

    chipnr = (int)(from >> chip->chip_shift);
    chip->select_chip(mtd, chipnr);

    realpage = (int)(from >> chip->page_shift);
    page = realpage & chip->pagemask;

    col = (int)(from & (mtd->writesize - 1));

    buf = ops->datbuf;
    oob = ops->oobbuf;
    oob_required = oob ? 1 : 0;

    while (1) {
        unsigned int ecc_failures = mtd->ecc_stats.failed;

        WATCHDOG_RESET();
        bytes = min(mtd->writesize - col, readlen);
        aligned = (bytes == mtd->writesize);

        if (!aligned)
            use_bufpoi = 1;
        else
            use_bufpoi = 0;

        /* Is the current page in the buffer? */
        if (realpage != chip->pagebuf || oob) {
            bufpoi = use_bufpoi ? chip->buffers->databuf : buf;

            if (use_bufpoi && aligned)
                pr_debug("%s: using read bounce buffer for buf@%pn",
                         __func__, buf);

read_retry:
            chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page);

            /*
             * Now read the page into the buffer.  Absent an error,
             * the read methods return max bitflips per ecc step.
             */
            if (unlikely(ops->mode == MTD_OPS_RAW))
                ret = chip->ecc.read_page_raw(mtd, chip, bufpoi,
                                  oob_required,
                                  page);
            else if (!aligned && NAND_HAS_SUBPAGE_READ(chip) &&
                 !oob)
                ret = chip->ecc.read_subpage(mtd, chip,
                            col, bytes, bufpoi,
                            page);
            else
                ret = chip->ecc.read_page(mtd, chip, bufpoi,
                              oob_required, page);
            if (ret < 0) {
                if (use_bufpoi)
                    /* Invalidate page cache */
                    chip->pagebuf = -1;
                break;
            }

            max_bitflips = max_t(unsigned int, max_bitflips, ret);

            /* Transfer not aligned data */
            if (use_bufpoi) {
                if (!NAND_HAS_SUBPAGE_READ(chip) && !oob &&
                    !(mtd->ecc_stats.failed - ecc_failures) &&
                    (ops->mode != MTD_OPS_RAW)) {
                    chip->pagebuf = realpage;
                    chip->pagebuf_bitflips = ret;
                } else {
                    /* Invalidate page cache */
                    chip->pagebuf = -1;
                }
                memcpy(buf, chip->buffers->databuf + col, bytes);
            }

            if (unlikely(oob)) {
                int toread = min(oobreadlen, max_oobsize);

                if (toread) {
                    oob = nand_transfer_oob(chip,
                        oob, ops, toread);
                    oobreadlen -= toread;
                }
            }

            if (chip->options & NAND_NEED_READRDY) {
                /* Apply delay or wait for ready/busy pin */
                if (!chip->dev_ready)
                    udelay(chip->chip_delay);
                else
                    nand_wait_ready(mtd);
            }

            if (mtd->ecc_stats.failed - ecc_failures) {
                if (retry_mode + 1 < chip->read_retries) {
                    retry_mode++;
                    ret = nand_setup_read_retry(mtd,
                            retry_mode);
                    if (ret < 0)
                        break;

                    /* Reset failures; retry */
                    mtd->ecc_stats.failed = ecc_failures;
                    goto read_retry;
                } else {
                    /* No more retry modes; real failure */
                    ecc_fail = true;
                }
            }

            buf += bytes;
        } else {
            memcpy(buf, chip->buffers->databuf + col, bytes);
            buf += bytes;
            max_bitflips = max_t(unsigned int, max_bitflips,
                         chip->pagebuf_bitflips);
        }

        readlen -= bytes;

        /* Reset to retry mode 0 */
        if (retry_mode) {
            ret = nand_setup_read_retry(mtd, 0);
            if (ret < 0)
                break;
            retry_mode = 0;
        }

        if (!readlen)
            break;

        /* For subsequent reads align to page boundary */
        col = 0;
        /* Increment page address */
        realpage++;

        page = realpage & chip->pagemask;
        /* Check, if we cross a chip boundary */
        if (!page) {
            chipnr++;
            chip->select_chip(mtd, -1);
            chip->select_chip(mtd, chipnr);
        }
    }
    chip->select_chip(mtd, -1);

    ops->retlen = ops->len - (size_t) readlen;
    if (oob)
        ops->oobretlen = ops->ooblen - oobreadlen;

    if (ret < 0)
        return ret;

    if (ecc_fail)
        return -EBADMSG;

    return max_bitflips;
}

/**
 * nand_scan_tail - [NAND Interface] Scan for the NAND device
 * @mtd: MTD device structure
 *
 * This is the second phase of the normal nand_scan() function. It fills out
 * all the uninitialized function pointers with the defaults and scans for a
 * bad block table if appropriate.
 */
int nand_scan_tail(struct mtd_info *mtd)
{
    int i;
    struct nand_chip *chip = mtd->priv;
    struct nand_ecc_ctrl *ecc = &chip->ecc;
    struct nand_buffers *nbuf;

    ...

    /* Set the internal oob buffer location, just after the page data */
    chip->oob_poi = chip->buffers->databuf + mtd->writesize;

    /*
     * If no default placement scheme is given, select an appropriate one.
     */
    if (!ecc->layout && (ecc->mode != NAND_ECC_SOFT_BCH)) {
        switch (mtd->oobsize) {
        case 8:
            ecc->layout = &nand_oob_8;
            break;
        case 16:
            ecc->layout = &nand_oob_16;
            break;
        case 64:
            ecc->layout = &nand_oob_64;
            break;
        case 128:
            ecc->layout = &nand_oob_128;
            break;
        default:
            pr_warn("No oob scheme defined for oobsize %dn",
                   mtd->oobsize);
            BUG();
        }
    }

    if (!chip->write_page)
        chip->write_page = nand_write_page;

    /*
     * Check ECC mode, default to software if 3byte/512byte hardware ECC is
     * selected and we have 256 byte pagesize fallback to software ECC
     */

    switch (ecc->mode) {
    case NAND_ECC_HW_OOB_FIRST:
       ...
case NAND_ECC_HW:
        ...

    case NAND_ECC_HW_SYNDROME:
        ...

    case NAND_ECC_SOFT:
        ecc->calculate = nand_calculate_ecc;
        ecc->correct = nand_correct_data;
        ecc->read_page = nand_read_page_swecc;
        ecc->read_subpage = nand_read_subpage;
        ecc->write_page = nand_write_page_swecc;
        ecc->read_page_raw = nand_read_page_raw;
        ecc->write_page_raw = nand_write_page_raw;
        ecc->read_oob = nand_read_oob_std;
        ecc->write_oob = nand_write_oob_std;
        if (!ecc->size)
            ecc->size = 256;
        ecc->bytes = 3;
        ecc->strength = 1;
        break;

    case NAND_ECC_SOFT_BCH:
        ...

    case NAND_ECC_NONE:
        ...

    default:
        pr_warn("Invalid NAND_ECC_MODE %dn", ecc->mode);
        BUG();
    }

    ...
return 0;
}

CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=m
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
CONFIG_BLK_DEV_INITRD=y
CONFIG_SLAB=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_PARTITION_ADVANCED=y
CONFIG_BSD_DISKLABEL=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_ARCH_S3C24XX=y
CONFIG_CPU_S3C2412=y
CONFIG_CPU_S3C2416=y
CONFIG_CPU_S3C2440=y   
CONFIG_CPU_S3C2442=y
CONFIG_CPU_S3C2443=y
CONFIG_MACH_AML_M5900=y
CONFIG_ARCH_BAST=y
CONFIG_ARCH_H1940=y
CONFIG_MACH_N30=y
CONFIG_MACH_OTOM=y
CONFIG_MACH_QT2410=y
CONFIG_ARCH_SMDK2410=y
CONFIG_MACH_TCT_HAMMER=y
CONFIG_MACH_VR1000=y
CONFIG_MACH_JIVE=y
CONFIG_MACH_SMDK2412=y
CONFIG_MACH_VSTMS=y
CONFIG_MACH_SMDK2416=y
CONFIG_MACH_ANUBIS=y
CONFIG_MACH_AT2440EVB=y
CONFIG_MACH_MINI2440=y
CONFIG_MACH_NEXCODER_2440=y
CONFIG_MACH_OSIRIS=y
CONFIG_MACH_OSIRIS_DVS=m
CONFIG_MACH_RX3715=y
CONFIG_ARCH_S3C2440=y   # 会链接mach-smdk2440.o
CONFIG_MACH_NEO1973_GTA02=y
CONFIG_MACH_RX1950=y
CONFIG_MACH_SMDK2443=y
CONFIG_S3C_ADC=y
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_CMDLINE="root=/dev/hda1 ro init=/bin/bash console=ttySAC0"
CONFIG_FPE_NWFPE=y
CONFIG_FPE_NWFPE_XP=y
CONFIG_APM_EMULATION=m
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_XFRM_USER=m
CONFIG_NET_KEY=m
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_NET_IPIP=m
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
CONFIG_IPV6_TUNNEL=m
CONFIG_NETFILTER=y
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_LED=m
CONFIG_NETFILTER_XT_TARGET_LOG=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_IP_VS=m
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_NF_CONNTRACK_IPV6=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_RAW=m
CONFIG_BT=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_HIDP=m
CONFIG_BT_HCIUART=m
CONFIG_BT_HCIUART_BCSP=y
CONFIG_BT_HCIUART_LL=y
CONFIG_BT_HCIBCM203X=m
CONFIG_BT_HCIBPA10X=m
CONFIG_BT_HCIBFUSB=m
CONFIG_BT_HCIVHCI=m
CONFIG_CFG80211=m
CONFIG_MAC80211=m
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_ROM=y
CONFIG_MTD_RAW_NAND=y
CONFIG_MTD_NAND_S3C2410=y
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_AX88796=m
CONFIG_PARPORT_1284=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_ATA_OVER_ETH=m
CONFIG_EEPROM_AT24=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=y
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_SCAN_ASYNC=y
CONFIG_ATA=y
CONFIG_PATA_PLATFORM=y
CONFIG_NETDEVICES=y
CONFIG_DM9000=y
CONFIG_INPUT_EVDEV=y
CONFIG_MOUSE_APPLETOUCH=m
CONFIG_MOUSE_BCM5974=m
CONFIG_INPUT_JOYSTICK=y
CONFIG_JOYSTICK_ANALOG=m
CONFIG_JOYSTICK_A3D=m
CONFIG_JOYSTICK_ADI=m
CONFIG_JOYSTICK_COBRA=m
CONFIG_JOYSTICK_GF2K=m
CONFIG_JOYSTICK_GRIP=m
CONFIG_JOYSTICK_GRIP_MP=m
CONFIG_JOYSTICK_GUILLEMOT=m
CONFIG_JOYSTICK_INTERACT=m
CONFIG_JOYSTICK_SIDEWINDER=m
CONFIG_JOYSTICK_TMDC=m
CONFIG_JOYSTICK_IFORCE=m
CONFIG_JOYSTICK_MAGELLAN=m
CONFIG_JOYSTICK_SPACEORB=m
CONFIG_JOYSTICK_SPACEBALL=m
CONFIG_JOYSTICK_STINGER=m
CONFIG_JOYSTICK_TWIDJOY=m
CONFIG_JOYSTICK_ZHENHUA=m
CONFIG_JOYSTICK_DB9=m
CONFIG_JOYSTICK_GAMECON=m
CONFIG_JOYSTICK_TURBOGRAFX=m
CONFIG_JOYSTICK_JOYDUMP=m
CONFIG_JOYSTICK_XPAD=m
CONFIG_JOYSTICK_XPAD_FF=y
CONFIG_JOYSTICK_XPAD_LEDS=y
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_USB_COMPOSITE=m
CONFIG_INPUT_MISC=y
CONFIG_INPUT_ATI_REMOTE2=m
CONFIG_INPUT_KEYSPAN_REMOTE=m
CONFIG_INPUT_POWERMATE=m
CONFIG_INPUT_YEALINK=m
CONFIG_INPUT_CM109=m
CONFIG_INPUT_UINPUT=m
CONFIG_INPUT_GPIO_ROTARY_ENCODER=m
CONFIG_SERIAL_NONSTANDARD=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=8
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_SAMSUNG=y
CONFIG_SERIAL_SAMSUNG_CONSOLE=y
CONFIG_SERIAL_DEV_BUS=m
CONFIG_PRINTER=y
CONFIG_PPDEV=y
CONFIG_HW_RANDOM=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_S3C2410=y
CONFIG_I2C_SIMTEC=y
CONFIG_SPI=y
CONFIG_SPI_GPIO=m
CONFIG_SPI_S3C24XX=m
CONFIG_SPI_SPIDEV=m
CONFIG_SPI_TLE62X0=m
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM78=m
CONFIG_SENSORS_LM85=m
CONFIG_WATCHDOG=y
CONFIG_S3C2410_WATCHDOG=y
CONFIG_MFD_SM501=y
CONFIG_TPS65010=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_S3C2410=y
CONFIG_FB_SM501=y
CONFIG_BACKLIGHT_PWM=m
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_VERBOSE_PRINTK=y
# CONFIG_SND_DRIVERS is not set
# CONFIG_SND_ARM is not set
# CONFIG_SND_SPI is not set
CONFIG_SND_USB_AUDIO=m
CONFIG_SND_USB_CAIAQ=m
CONFIG_SND_SOC=y
# CONFIG_USB_HID is not set
CONFIG_USB=y
CONFIG_USB_MON=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_ACM=m
CONFIG_USB_PRINTER=m
CONFIG_USB_WDM=m
CONFIG_USB_STORAGE=m
CONFIG_USB_STORAGE_DATAFAB=m
CONFIG_USB_STORAGE_FREECOM=m
CONFIG_USB_STORAGE_ISD200=m
CONFIG_USB_STORAGE_USBAT=m
CONFIG_USB_STORAGE_SDDR09=m
CONFIG_USB_STORAGE_SDDR55=m
CONFIG_USB_STORAGE_JUMPSHOT=m
CONFIG_USB_STORAGE_ALAUDA=m
CONFIG_USB_STORAGE_ONETOUCH=m
CONFIG_USB_STORAGE_KARMA=m
CONFIG_USB_STORAGE_CYPRESS_ATACB=m
CONFIG_USB_MDC800=m
CONFIG_USB_MICROTEK=m
CONFIG_USB_USS720=m
CONFIG_USB_SERIAL=y
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_FTDI_SIO=y
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=y
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_EMI62=m
CONFIG_USB_EMI26=m
CONFIG_USB_ADUTUX=m
CONFIG_USB_SEVSEG=m
CONFIG_USB_RIO500=m
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
CONFIG_USB_CYPRESS_CY7C63=m
CONFIG_USB_CYTHERM=m
CONFIG_USB_IDMOUSE=m
CONFIG_USB_FTDI_ELAN=m
CONFIG_USB_APPLEDISPLAY=m
CONFIG_USB_LD=m
CONFIG_USB_TRANCEVIBRATOR=m
CONFIG_USB_IOWARRIOR=m
CONFIG_USB_TEST=m
CONFIG_MMC=y
CONFIG_SDIO_UART=m
CONFIG_MMC_TEST=m
CONFIG_MMC_SDHCI=m
CONFIG_MMC_SPI=m
CONFIG_MMC_S3C=y
CONFIG_LEDS_S3C24XX=m
CONFIG_LEDS_PCA9532=m
CONFIG_LEDS_GPIO=m
CONFIG_LEDS_PCA955X=m
CONFIG_LEDS_DAC124S085=m
CONFIG_LEDS_PWM=m
CONFIG_LEDS_BD2802=m
CONFIG_LEDS_TRIGGER_TIMER=m
CONFIG_LEDS_TRIGGER_HEARTBEAT=m
CONFIG_LEDS_TRIGGER_GPIO=m
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_S3C=y
CONFIG_DMADEVICES=y
CONFIG_S3C24XX_DMAC=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_NTFS_FS=m
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_CONFIGFS_FS=m
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_SUMMARY=y
CONFIG_CRAMFS=y
CONFIG_SQUASHFS=m
CONFIG_ROMFS_FS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3_ACL=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=m
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_CIFS=m
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=y
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
CONFIG_DEBUG_INFO=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_USER=y
CONFIG_DEBUG_LL=y

U-Boot 2016.05 (Jan 27 2022 - 23:02:32 +0800)

CPUID: 32440001
FCLK:      400 MHz
HCLK:      100 MHz
PCLK:       50 MHz
DRAM:  64 MiB
WARNING: Caches not enabled
Flash: 0 Bytes
NAND:  256 MiB
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   dm9000
Warning: dm9000 MAC addresses don't match:
Address in SROM is         ff:ff:ff:ff:ff:ff
Address in environment is  08:00:3e:26:0a:5b

Hit any key to stop autoboot:  5  4  3  2  1  0 

NAND read: device 0 offset 0x60000, size 0x400000
 4194304 bytes read: OK
## Booting kernel from Legacy Image at 30000000 ...
   Image Name:   Linux-5.2.8
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    3656464 Bytes = 3.5 MiB
   Load Address: 30108000
   Entry Point:  30108000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK

Starting kernel ...

Booting Linux on physical CPU 0x0
Linux version 5.2.8 (root@zhengyang) (gcc version 4.6.4 (crosstool-NG hg+unknown-20130521.154019 - tc0002)) #8 Thu Jan 27 23:05:27 CST 2022
CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c000717f
CPU: VIVT data cache, VIVT instruction cache
Machine: SMDK2440
Memory policy: Data cache writeback
CPU S3C2440A (id 0x32440001)
Built 1 zonelists, mobility grouping on.  Total pages: 16256
Kernel command line: root=/dev/mtdblock3 console=ttySAC0,115200 init=/linuxrc
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 57232K/65536K available (5672K kernel code, 271K rwdata, 1260K rodata, 236K init, 196K bss, 8304K reserved, 0K cma-reserved)
NR_IRQS: 111
S3C2440: IRQ Support
irq: clearing pending status 00000002
random: get_random_bytes called from start_kernel+0x250/0x418 with crng_init=0
sched_clock: 16 bits at 1000kHz, resolution 1000ns, wraps every 32767500ns
clocksource: samsung_clocksource_timer: mask: 0xffff max_cycles: 0xffff, max_idle_ns: 29163075 ns
Console: colour dummy device 80x30
Calibrating delay loop... 199.06 BogoMIPS (lpj=995328)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
Setting up static identity map for 0x30108400 - 0x3010847c
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
futex hash table entries: 256 (order: -1, 3072 bytes)
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
S3C Power Management, Copyright 2004 Simtec Electronics
S3C2440: Initialising architecture
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
s3c-i2c s3c2440-i2c.0: slave address 0x10
s3c-i2c s3c2440-i2c.0: bus frequency set to 97 KHz
s3c-i2c s3c2440-i2c.0: i2c-0: S3C I2C adapter
Advanced Linux Sound Architecture Driver Initialized.
clocksource: Switched to clocksource samsung_clocksource_timer
NET: Registered protocol family 2
tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes)
TCP established hash table entries: 1024 (order: 0, 4096 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
NetWinder Floating Point Emulator V0.97 (extended precision)
Initialise system trusted keyrings
workingset: timestamp_bits=30 max_order=14 bucket_order=0
jffs2: version 2.2. (NAND) (SUMMARY)  漏 2001-2006 Red Hat, Inc.
romfs: ROMFS MTD (C) 2007 Red Hat, Inc.
Key type asymmetric registered
Asymmetric key parser 'x509' registered
io scheduler mq-deadline registered
io scheduler kyber registered
Console: switching to colour frame buffer device 30x40
s3c2410-lcd s3c2410-lcd: fb0: s3c2410fb frame buffer device
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
s3c2440-uart.0: ttySAC0 at MMIO 0x50000000 (irq = 74, base_baud = 0) is a S3C2440
printk: console [ttySAC0] enabled
s3c2440-uart.1: ttySAC1 at MMIO 0x50004000 (irq = 77, base_baud = 0) is a S3C2440
s3c2440-uart.2: ttySAC2 at MMIO 0x50008000 (irq = 80, base_baud = 0) is a S3C2440
lp: driver loaded but no devices found
ppdev: user-space parallel port driver
brd: module loaded
loop: module loaded
nand: device found, Manufacturer ID: 0xec, Chip ID: 0xda
nand: Samsung NAND 256MiB 3,3V 8-bit
nand: 256 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
s3c24xx-nand s3c2440-nand: ECC disabled
nand: NAND_ECC_NONE selected by board driver. This is not recommended!
Scanning device for bad blocks
Bad eraseblock 284 at 0x000002380000
Bad eraseblock 792 at 0x000006300000
Creating 4 MTD partitions on "NAND":
0x000000000000-0x000000040000 : "u-boot"
0x000000040000-0x000000060000 : "params"
0x000000060000-0x000000460000 : "kernel"
0x000000460000-0x000010000000 : "rootfs"
s3c24xx-nand s3c2440-nand: Tacls=2, 20ns Twrph0=6 60ns, Twrph1=2 20ns
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci-s3c2410: OHCI S3C2410 driver
s3c2410-ohci s3c2410-ohci: OHCI Host Controller
s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1
s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial support registered for generic
usbcore: registered new interface driver ftdi_sio
usbserial: USB Serial support registered for FTDI USB Serial Device
usbcore: registered new interface driver pl2303
usbserial: USB Serial support registered for pl2303
s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq disabled
NET: Registered protocol family 10
Segment Routing with IPv6
sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
NET: Registered protocol family 17
Loading compiled-in X.509 certificates
hctosys: unable to open rtc device (rtc0)
ALSA device list:
  No soundcards found.
yaffs: dev is 32505859 name is "mtdblock3" rw
yaffs: passed flags ""
VFS: Mounted root (yaffs filesystem) on device 31:3.
Freeing unused kernel memory: 236K
This architecture does not have kernel memory protection.
Run /linuxrc as init process
Kernel panic - not syncing: Requested init /linuxrc failed (error -2).
CPU: 0 PID: 1 Comm: swapper Not tainted 5.2.8 #8
Hardware name: SMDK2440
Backtrace: 
[<c011948c>] (dump_backtrace) from [<c01198d4>] (show_stack+0x18/0x24)
 r6:00000000 r5:00000000 r4:c084e3f0 r3:443347c2
[<c01198bc>] (show_stack) from [<c066e340>] (dump_stack+0x20/0x30)
[<c066e320>] (dump_stack) from [<c0128bc4>] (panic+0xdc/0x2e4)
[<c0128aec>] (panic) from [<c068d3a0>] (kernel_init+0x8c/0xfc)
 r3:c084de20 r2:fffffffe r1:c3ffcd10 r0:c073edf8
 r7:00000000
[<c068d314>] (kernel_init) from [<c01090e0>] (ret_from_fork+0x14/0x34)
Exception stack(0xc3821fb0 to 0xc3821ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r4:00000000 r3:ffffffff
---[ end Kernel panic - not syncing: Requested init /linuxrc failed (error -2). ]---