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发表于 2018-12-29 16:53:35
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1、硬件上,使用的确实是MMPF0100NPZES,按照您所说的,这个型号是空的,无法给Nand提供有效的供电电压。于是,我们在硬件上将Nand的供电电压改为VGEN2,即3V电压,这样是能够正常识别Nand的。但是烧写过程中还是出现问题。烧写过程的log信息见附件,错误如下:
regulator_init_complete: PFUZE100_VGEN2: incomplete constraints, leaving on
regulator_init_complete: vmmc: incomplete constraints, leaving on
snvs_rtc snvs_rtc.0: setting system clock to 1970-01-01 00:00:00 UTC (0)
VFS: Cannot open root device "(null)" or unknown-block(0,0)
Please append a correct "root=" boot option; here are the available partitions:
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[<80046868>] (unwind_backtrace+0x0/0xf8) from [<804f895c>] (panic+0x74/0x18c)
[<804f895c>] (panic+0x74/0x18c) from [<80008ce8>] (mount_block_root+0x170/0x224)
[<80008ce8>] (mount_block_root+0x170/0x224) from [<80008e84>] (mount_root+0xe8/0x108)
[<80008e84>] (mount_root+0xe8/0x108) from [<80008fc4>] (prepare_namespace+0x120/0x178)
[<80008fc4>] (prepare_namespace+0x120/0x178) from [<800089b0>] (kernel_init+0x108/0x13c)
[<800089b0>] (kernel_init+0x108/0x13c) from [<80040a64>] (kernel_thread_exit+0x0/0x8)
mfg工具显示如附件图所示
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log.zip
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