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Some Parallel bus chips have a 16-bit mode and an 8-bit mode. They use
normal JEDEC addresses for 16-bit mode and shifted addresses (by 1 bit)
for 8-bit mode. Some programmers can access them in 16-bit mode, but on
all flashrom-supported programmers so far, we access them in 8-bit mode.
This means we have to shift the addresses but apart from the addresses
we can share the code.
This patch makes this possible by checking the chip's FEATURE_ADDR_SHIFTED
flag in common JEDEC functions and applying the right addresses respectively.
Corresponding to flashrom svn r1840.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
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This patch combines two identical block and chip erase functions respectively:
- Merge block_erase_m29f400bt and block_erase_en29lv640b into
erase_block_shifted_jedec.
- Merge block_erase_chip_m29f400bt and block_erase_chip_en29lv640b into
erase_chip_block_shifted_jedec.
Leave their implementations in en29lv640b.c for now.
Corresponding to flashrom svn r1808.
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
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Corresponding to flashrom svn r1789.
Inspired by and mostly based on a patch
Signed-off-by: Mark Marshall <mark.marshall@omicron.at>
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
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All the driver conversion work and cleanup has been done by Stefan.
flashrom.c and cli_classic.c are a joint work of Stefan and Carl-Daniel.
Corresponding to flashrom svn r1579.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
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This chip needs special command sequences in 8 bit mode. Also, 8 bit
programming needs actually 16bit double byte program.
The chip is found on the Bifferos Bifferboard, for example.
Corresponding to flashrom svn r1521.
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
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