soc/intel/quark/spi.c: Explain a read in order to flush buffers

In order for this (seemingly unnecessary) status assignment to stay, let's
explain it in a comment.

Change-Id: I0a364539c37005cfd637b75c8cc23b84e274294d
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Reviewed-on: https://review.coreboot.org/20411
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This commit is contained in:
Martin Kepplinger 2017-06-30 14:12:33 +02:00 committed by Martin Roth
parent e7d0a37501
commit d9d351d251
1 changed files with 3 additions and 0 deletions

View File

@ -166,7 +166,10 @@ static int xfer(const struct spi_slave *slave, const void *dout,
ctrlr->address = (data[0] << 16) ctrlr->address = (data[0] << 16)
| (data[1] << 8) | (data[1] << 8)
| data[2]; | data[2];
/* read in order to flush the write buffer */
status = ctrlr->address; status = ctrlr->address;
data += 3; data += 3;
bytesout -= 3; bytesout -= 3;
} }