这是我的树莓派2烧写32MB SPI FlashROM的结果，5分37秒，用的flashrom v1.2-85。
flashrom v1.2-85-gf4eeefd on Linux 5.4.51-v7+ (armv7l)
flashrom is free software, get the source code at
https://flashrom.orgUsing clock_gettime for delay loops (clk_id: 1, resolution: 1ns).
Found Macronix flash chip "MX25L25635F/MX25L25645G" (32768 kB, SPI) on linux_spi.
Reading old flash chip contents... done.
Erasing and writing flash chip... Erase/write done.
Verifying flash... VERIFIED.
New flash bin: real 5:37.14, user 252.79, sys 33.21
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FROM 118.122.107.*