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loadtools support for C139/140 target: -c 1004 compalstage variant supercedes the previous -c 1003 version and supports the new C139 boot code version found in the wild that expects "1004" or greater in the signature bytes
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 25 Jul 2016 21:09:33 +0000
parents e7502631a0f9
children 35d3f4c26b96
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# Set WS=3 for both nCS0 and nCS1, same as the more basic Compal phones

w16 fffffb00 00A3
w16 fffffb02 00A3

# 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.