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发表于 2019-10-26 20:53:00
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求指点 问题出在哪儿 跪谢
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4 s. c t! v: A& A1 {$ m/ ~9 RMarvell>> sf probe4 {0 f, a3 S: K( ?% e$ B/ `
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machine id: 59d27c40ee176d8a9690c9e459a049ad& ] e- y) j! Q- D7 p" u# A% F
SF: Detected gd25lq64c with page size 256 Bytes, erase size 4 KiB, total 8 MiB
% y) X% O; a- @7 E, t, w& K3 xMarvell>> sf updatemacsn 001132B60655 1980S6R9Z0BSM# J w+ Z5 b! L
sf - SPI flash sub-system
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0 C6 S) |' i) g3 f' Z9 K; }& _Usage:
. E: i+ e; _& L5 a. i. Dsf probe [[bus:]cs] [hz] [mode] - init flash device on given SPI bus# ?, L) A4 g5 g) L) S# s
and chip select% K9 q/ j- u8 k( k9 r& F) ^9 p
sf read addr offset|partition len - read `len' bytes starting at
! X2 u4 F |6 l `offset' or from start of mtd
& a* f, w8 k3 a* M3 d6 X `partition'to memory at `addr'
$ d, x" ]/ _# q% a/ b% isf write addr offset|partition len - write `len' bytes from memory* [' a' C2 j& z, n
at `addr' to flash at `offset'; b: D3 y/ f% p: U
or to start of mtd `partition'
8 {. Y" F) Z$ Tsf erase offset|partition [+]len - erase `len' bytes from `offset'
% H6 [: B) ~# ~: Z4 Z+ b or from start of mtd `partition'; e5 ]- q( s7 l# S
`+len' round up `len' to block size
) ~; R6 i5 a3 H6 `sf update addr offset|partition len - erase and write `len' bytes from memor y
/ P4 L' [# Z. i at `addr' to flash at `offset' y2 ^' |% y* n* L6 A
or to start of mtd `partition'! S( `1 Z/ c% R* f2 z
sf protect lock/unlock sector len - protect/unprotect 'len' bytes starting" g+ X" _1 v- @+ S5 l M
at address 'sector'
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Marvell>>6 |9 Z. X6 Z( e' _# U+ W4 k5 w) Q9 `
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