It looks like the X230 already has a large flash chip (BOARD_ROMSIZE_12288?). How big were you thinking? The main issue would be that chips bigger than 16MB use 4-byte addresses and the SPI controller in Ivy Bridge probably only supports 3-byte addresses.
I have ordered two 32 MB Macronix chips, with the hope to have 64 MB of space. If what you say is true, they won't work :(
Marek
The x230 has two rom chips. One that has 4mb that boots the system, and one that is 8mb that holds ME. http://osresearch.net/ planned on using freed space in the ME after deactivating it, but I haven't seen usage of that freed space yet.
Le ven. 14 avr. 2017 à 21:15, Marek Behun kabel@blackhole.sk a écrit :
It looks like the X230 already has a large flash chip (BOARD_ROMSIZE_12288?). How big were you thinking? The main issue would be that chips bigger than 16MB use 4-byte addresses and the SPI controller in Ivy Bridge probably only supports 3-byte addresses.
I have ordered two 32 MB Macronix chips, with the hope to have 64 MB of space. If what you say is true, they won't work :(
Marek
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Marek Behun -
Thierry Laurion