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loadtools: round out support for Intel flash families The three Intel flash families encountered so far in Calypso GSM devices are C3, W30 and W18, sizes from 2 to 8 MiB. Let's support all Intel flash chips from these 3 families across this range of sizes.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 28 Nov 2023 18:56:40 +0000
parents 35d3f4c26b96
children
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# Set WS=4 for both nCS0 and nCS1, matching what the official C155/156 fw sets

w16 fffffb00 00A4
w16 fffffb02 00A4

# We need to switch the CS4/ADD22 pin from its default function of CS4
# to the needed ADD22, to access the 8 MiB of flash.  Compal's C155/156
# in-flash boot code does this setting, but let's do it ourselves too.

w16 fffef006 0008

# We don't mess with the FFFF:FB10 register on C155/156, i.e., we
# leave the "enable boot ROM" setting established by compalstage.
# Unlike C139, C155 and C156 phones do have working flash mapping
# at 0x03000000, so we use that.