如何将emmc转换成SPINAND启动

[pgf16680331652]

按照论坛里的大佬操作也不行，按官方文档更改也不行，还是通过emmc启动，启动报错如下，麻烦大佬们帮我看一下，谢谢了。```
code_text

gned bus number 1
[    2.353817] sunxi-ehci 4200000.ehci1-controller: irq 49, io mem 0x04200000
[    2.384935] sunxi-ehci 4200000.ehci1-controller: USB 2.0 started, EHCI 1.00
[    2.393865] hub 1-0:1.0: USB hub found
[    2.398191] hub 1-0:1.0: 1 port detected
[    2.403801] get ohci1-controller wakeup-source is fail.
[    2.409835] sunxi ohci1-controller don't init wakeup source
[    2.416130] [sunxi-ohci1]: probe, pdev->name: 4200400.ohci1-controller, sunxi                                                                                                                                   _ohci: 0xffffffe000662680
[    2.426925] sunxi-ohci 4200400.ohci1-controller: 4200400.ohci1-controller sup                                                                                                                                   ply hci not found, using dummy regulator
[    2.439400] sunxi-ohci 4200400.ohci1-controller: OHCI Host Controller
[    2.446694] sunxi-ohci 4200400.ohci1-controller: new USB bus registered, assi                                                                                                                                   gned bus number 2
[    2.456578] sunxi-ohci 4200400.ohci1-controller: irq 50, io mem 0x04200400
[    2.530026] hub 2-0:1.0: USB hub found
[    2.534267] hub 2-0:1.0: 1 port detected
[    2.541719] get usb_detect_mode is fail, -22
[    2.546608] get det_vbus is fail, -84
[    2.550691] get id is fail, -84
[    2.556759] platform regulatory.0: Direct firmware load for regulatory.db fai                                                                                                                                   led with error -2
[    2.566462] clk: Not disabling unused clocks
[    2.571262] ALSA device list:
[    2.574570]   #0: audiocodec
[    2.577863] cfg80211: failed to load regulatory.db
[    2.583268] alloc_fd: slot 0 not NULL!
[    2.588002] VFS: Cannot open root device "mmcblk0p5" or unknown-block(0,0): e                                                                                                                                   rror -6
[    2.596728] Please append a correct "root=" boot option; here are the availab                                                                                                                                   le partitions:
[    2.606158] 1f00            1024 mtdblock0
[    2.606162]  (driver?)
[    2.613450] 1f01            4096 mtdblock1
[    2.613452]  (driver?)
[    2.620855] 1f02            1024 mtdblock2
[    2.620859]  (driver?)
[    2.628184] 1f03          124928 mtdblock3
[    2.628187]  (driver?)
[    2.635496] Kernel panic - not syncing: VFS: Unable to mount root fs on unkno                                                                                                                                   wn-block(0,0)
[    2.644713] CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.61 #130
[    2.651306] Call Trace:
[    2.654047] [<ffffffe000023d56>] walk_stackframe+0x0/0x70
[    2.660069] [<ffffffe000027d2c>] panic+0xdc/0x266
[    2.665318] [<ffffffe000000d9c>] mount_block_root+0x1fe/0x266
[    2.671728] [<ffffffe000000fc2>] prepare_namespace+0x136/0x144
[    2.678231] [<ffffffe0004242a2>] rest_init+0xbc/0xc0
[    2.683765] [<ffffffe0004242b0>] kernel_init+0xa/0xe8
[    2.689393] [<ffffffe0004242a2>] rest_init+0xbc/0xc0
[    2.694926] [<ffffffe000022d5c>] ret_from_syscall+0xa/0xe
[    2.700953] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs                                                                                                                                    on unknown-block(0,0) ]---