SD卡不烧写Nand flash
我用SD卡烧写NADNflash，就是不成功。SD卡制作没问题。
启动模式是SD卡，内核也启动了，就是不烧写。
256MB Nand Flash, mx6ul-c 开发板。
2.863187] nand: 256MiB, SLC, page size: 2048, OOB size: 64
[ 2.869906] gpmi-nand 1806000.gpmi-nand: enable the asynchronous EDO mode 5
[ 2.877027] Scanning device for bad blocks
[ 2.885625] mmc0: host does not support reading read-only switch. assuming write-enable.
[ 2.902455] mmc0: new SDHC card at address 0001
[ 2.913059] mmcblk0: mmc0:0001 0000 7.43 GiB
[ 2.924467]mmcblk0: p1 p2
[ 3.094671] 6 ofpart partitions found on MTD device gpmi-nand
[ 3.100507] Creating 6 MTD partitions on "gpmi-nand":
[ 3.105600] 0x000000000000-0x000000400000 : "boot"
[ 3.113113] 0x000000400000-0x000000600000 : "logo"
[ 3.120706] 0x000000600000-0x000000700000 : "ENV"
[ 3.128138] 0x000000700000-0x000000a00000 : "DTB"
[ 3.135602] 0x000000a00000-0x000001200000 : "kernel"
[ 3.143552] 0x000001200000-0x000010000000 : "rootfs"
[ 3.151632] gpmi-nand 1806000.gpmi-nand: driver registered.
[ 3.161506] usbcore: registered new inte**ce driver usbhid
[ 3.167128] usbhid: USB HID core driver
[ 3.184231] fsl-asrc 2034000.asrc: driver registered
[ 3.198309] snd-soc-dummy snd-soc-dummy: ASoC: Failed to create platform debugfs directory
[ 3.207889] imx-wm8960 sound.14: wm8960-hifi <-> 202c000.sai mapping ok
[ 3.215977] imx-wm8960 sound.14: snd-soc-dummy-dai <-> 2034000.asrc mapping ok
[ 3.223546] imx-wm8960 sound.14: wm8960-hifi <-> 202c000.sai mapping ok
[ 3.240991] NET: Registered protocol family 26
[ 3.245809] TCP: cubic registered
[ 3.250737] NET: Registered protocol family 10
[ 3.258084] sit: IPv6 over IPv4 tunneling driver
[ 3.264591] NET: Registered protocol family 17
[ 3.269264] can: controller area network core (rev 20120528 abi 9)
[ 3.275649] NET: Registered protocol family 29
[ 3.280237] can: raw protocol (rev 20120528)
[ 3.284539] can: broadcast manager protocol (rev 20120528 t)
[ 3.290360] can: netlink gateway (rev 20130117) max_hops=1
[ 3.296553] Bluetooth: RFCOMM TTY layer initialized
[ 3.301687] Bluetooth: RFCOMM socket layer initialized
[ 3.306906] Bluetooth: RFCOMM ver 1.11
[ 3.310764] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 3.316105] Bluetooth: BNEP filters: protocol multicast
[ 3.321512] Bluetooth: BNEP socket layer initialized
[ 3.326510] Bluetooth: HIDP (Human Inte**ce Emulation) ver 1.2
[ 3.332515] Bluetooth: HIDP socket layer initialized
[ 3.337702] 8021q: 802.1Q VLAN Support v1.8
[ 3.342052] Key type dns_resolver registered
[ 3.347898] cpu cpu0: dev_pm_opp_get_opp_count: device OPP not found (-19)
[ 3.371631] gpio_dvfs: disabling
[ 3.374914] vref-3v3: disabling
[ 3.378193] usb_otg1_vbus: disabling
[ 3.381803] can-3v3: disabling
[ 3.384883] regulator-dummy: disabling
[ 3.389777] imx mcc test is registered.
[ 3.395683] rtc-rx8010 0-0032: setting system clock to 2017-09-21 09:13:36 UTC (1505985216)
[ 3.422893] ALSA device list:
[ 3.425907] #0: wm8960-audio
[ 3.440842] EXT3-fs (mmcblk0p2): recovery required on readonly filesystem
[ 3.447842] EXT3-fs (mmcblk0p2): write access will be enabled during recovery
[ 3.538668] random: nonblocking pool is initialized
[ 3.570873] kjournald starting.Commit interval 5 seconds
[ 3.580632] EXT3-fs (mmcblk0p2): recovery complete
[ 3.585462] EXT3-fs (mmcblk0p2): mounted filesystem with ordered data mode
[ 3.592553] VFS: Mounted root (ext3 filesystem) readonly on device 179:2.
[ 3.602722] devtmpfs: mounted
[ 3.606758] Freeing unused kernel memory: 388K (80a25000 - 80a86000)
Mounting /proc and /sys
Starting the hotplug events dispatcher udevd
Synthesizing initial hotplug even[ 4.187084] udevd (106): /proc/106/oom_adj is deprecated, please use /proc/106/oom_.
ts
[ 7.801921] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
Setting the hostname to freescale
Running depmod
depmod: can't change directory to '3.14.38-6UL_ga-g5f0603cedf2': No such file or directory
Mounting filesystems
[ 9.331676] EXT3-fs (mmcblk0p2): using internal journal
Starting inetd:
Starting syslogd and klogd
cat: can't open '/proc/boardname': No such file or directory
/etc/rc.d/rc.local: line 63: [: =: unary operator expected
[ 9.786946] flexcan 2090000.can can0: writing ctrl=0x0e312085
[ 9.818072] flexcan 2094000.can can1: writing ctrl=0x0e312085
Reconfiguring network inte**ces... ifdown: inte**ce lo not configured
ifdown: inte**ce eth0 not configured
ifdown: inte**ce eth1 not configured
RTNETLINK answers: File exists
[ 10.088465] fec 20b4000.ethernet eth0: Freescale FEC PHY driver (mii_bus:phy_addr=20b400)
[ 10.138794] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 10.328954] fec 2188000.ethernet eth1: Freescale FEC PHY driver (mii_bus:phy_addr=20b400)
[ 10.368836] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
RTNETLINK answers: File exists
done.
alsactl: parse:1655: Unable to open file '/data0/imx6_linux/alsa/tmp/share/alsa/init/00main': No such file or directory
alsactl: set_control:1267: failed to obtain info for control #55 (No such file or directory)
xres = 1024, yres = 600
CTRL-A Z for help | 115200 8N1 | NOR | Minicom 2.7.1 | VT102 | Offline | tty.usbserial
如果直接从nand启动，会发现rootfs不存在
3.219597] can: broadcast manager protocol (rev 20120528 t)
[ 3.225418] can: netlink gateway (rev 20130117) max_hops=1
[ 3.231603] Bluetooth: RFCOMM TTY layer initialized
[ 3.236812] Bluetooth: RFCOMM socket layer initialized
[ 3.242093] Bluetooth: RFCOMM ver 1.11
[ 3.245898] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 3.251236] Bluetooth: BNEP filters: protocol multicast
[ 3.256556] Bluetooth: BNEP socket layer initialized
[ 3.261555] Bluetooth: HIDP (Human Inte**ce Emulation) ver 1.2
[ 3.267559] Bluetooth: HIDP socket layer initialized
[ 3.272681] 8021q: 802.1Q VLAN Support v1.8
[ 3.277124] Key type dns_resolver registered
[ 3.306181] gpio_dvfs: disabling
[ 3.309467] vref-3v3: disabling
[ 3.312748] usb_otg1_vbus: disabling
[ 3.316355] VSD_3V3: disabling
[ 3.319433] can-3v3: disabling
[ 3.323085] regulator-dummy: disabling
[ 3.327349] imx mcc test is registered.
[ 3.333363] rtc-rx8010 0-0032: setting system clock to 2017-09-21 09:21:34 UTC (1505985694)
[ 3.360545] ALSA device list:
[ 3.363650] #0: wm8960-audio
[ 3.367696] yaffs: dev is 32505861 name is "mtdblock5" ro
[ 3.373319] yaffs: passed flags ""
[ 3.423800] random: nonblocking pool is initialized
[ 3.965409] VFS: Mounted root (yaffs2 filesystem) readonly on device 31:5.
[ 3.972652] devtmpfs: error mounting -2
[ 3.977320] Freeing unused kernel memory: 396K (80a87000 - 80aea000)
[ 3.991857] Kernel panic - not syncing: No working init found.Try passing init= option to kernel. See Linux Docume.
U-Boot 2015.04-g56889c6 (Dec 25 2018 - 09:54:12)
CPU: Freescale i.MX6UL rev1.2 at 396 MHz
CPU: Temperature 54 C
Reset cause: POR
Board: MX6UL 14x14 EVK
I2C: ready
DRAM:256 MiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
*** Warning - bad CRC, using default environment
Display: TFT70AB-800x480 (800x480)
Video: 800x480x24
Error: no valid bmp image at 83800000 cfb_console.c
In: serial
Out: serial
Err: serial
switch to partitions #0, OK
mmc0 is current device
Net: FEC1
Error: FEC1 address not set.
Normal Boot
Hit any key to stop autoboot:0 建议版主为mx6ul, 256M nand，更新最新的uboot二进制文件，同时更新烧写脚本。
有机会让用户选择无需校准。
现在网站上的uboot版本是 2015.04，不能选择disable校准。
对于没有屏幕的开发板，永远没机会校准。 本帖最后由 gentheaven 于 2019-9-24 22:32 编辑
问题解决了。
用户资料\Linux\tools\SD\烧写\256Mnand\createSdcard-qt4.tar.bz2
createSdcard-qt4.tar.bz2 这个压缩包中的uboot版本很旧，不支持选择 Calibrate
1. Screen Type Menu or DTB
2. Change The Calibrate
0. Exit To Boot Shell
Enter your number:
可以使用网站上：用户资料\linux>镜像>uboot>256mnand>256Mdd
有最新的uboot二进制文件。
用这个文件和createSdcard-qt4.tar.bz2制作最新的烧录程序。
解压缩文件createSdcard-qt4.tar.bz2，
生成update.tar.bz2，再解压缩这个文件，生成update目录。
把update目录中sdrun 和 target子目录中的u-boot.imx 换成最新的。
然后，就在update目录下，执行
tar -cjf update.tar.bz2 *
mv update.tar.bz2 ..
然后在上一级目录，就可以执行
sudo ./createSdcard.sh
烧写SD卡成功之后。
把SD卡插入开发板，
boot的时候，立刻按空格键。
选择2. Change The Calibrate
再选择2. Not Calibrate
然后输入0，最后输入boot， 启动开发板
---------------MAIN MENU---------------
1. Screen Type Menu or DTB
2. Change The Calibrate
0. Exit To Boot Shell
Enter your number:
:2
---------------MENU OF CALIBRATION---------------
1. Calibrate
2. Not Calibrate
0. return
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