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2 Upgrading BIOS using spi-intel
6 controller which is used to hold BIOS and other platform specific data.
12 allows upgrading the BIOS image directly from an OS.
14 The spi-intel driver makes it possible to read and write the SPI serial
16 any of them set, the whole MTD device is made read-only to prevent
18 contents as read-only but it can be changed from kernel command line,
21 Please keep in mind that overwriting the BIOS image on SPI serial flash
28 1) Download and extract the latest Minnowboard MAX BIOS SPI image
29 [1]. At the time writing this the latest image is v92.
31 2) Install mtd-utils package [2]. We need this in order to erase the SPI
33 name "mtd-utils".
48 5) Make backup of the existing image first::
67 Erasing 4 Kibyte @ 7ff000 -- 100 % complete
69 8) Once completed without errors you can write the new BIOS image::
74 BIOS image::
86 ----------
90 [2] http://www.linux-mtd.infradead.org/