# This phone has 3 memory chip selects:
#
# nCS0: flash chip select 1
# nCS1: RAM chip select
# nCS3: flash chip select 2
#
# All 3 chip select lines go to the same physical IC, a RAM/flash MCP.
# We set WS=4 for all 3 here, copying what OsmocomBB does.  The access
# time listed in the datasheet is 70 ns for both RAM and flash, and per
# my math setting WS=3 *might* work, but it could be marginal, so let's
# play it safe for now.

w16 fffffb00 00A4
w16 fffffb02 00A4
w16 fffffb06 00A4

# We also need to switch the CS4/ADD22 pin from its default function
# of CS4 to the needed ADD22.

w16 fffef006 0008