firmware: altera: Make nSTAT GPIO optional
By taking parts of the programming handshaking protocol on faith it is
possible to make due with only two GPIO for programming Altera
FPGAs. This is not a very advisable practice, but sometime unavoidable
in GPIO constrained designs.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
1 parent acc69bd commit 79b40a630d6e28a7453eedbe7a0b96084d678e29
@Andrey Smirnov Andrey Smirnov authored on 17 Feb 2015
Sascha Hauer committed on 19 Feb 2015
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drivers/firmware/altera_serial.c