From 41f669023953b3d032078ffc17d80944880d1db7 Mon Sep 17 00:00:00 2001 From: Aaron Durbin Date: Sat, 17 Dec 2016 13:16:07 -0600 Subject: drivers/spi: fix flash writes at page boundaries MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There was an assumption that all SPI controllers could consume a full page of data to write. However, that assumption doesn't hold when spi_crop_chunk() indicates sizes smaller than page size. If the requested offset isn't page aligned from the start then writes will fail corrupting data since a page boundary isn't honored. The spansion driver needed quite a bit more work to honor the spi_crop_chunk() result. It now mimics the other driver's code. Also, needed to add spi_crop_chunk() to marvell/bg4cd SoC to make google/cosmos build. SPI obviously doesn't work on that platform, but it fixes the build error. Change-Id: I93e24a5a717adcee45a017c164bd960f4592ad50 Signed-off-by: Aaron Durbin Reviewed-on: https://review.coreboot.org/17910 Tested-by: build bot (Jenkins) Reviewed-by: Matt DeVillier Reviewed-by: Kyösti Mälkki --- src/soc/marvell/bg4cd/spi.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'src/soc/marvell/bg4cd') diff --git a/src/soc/marvell/bg4cd/spi.c b/src/soc/marvell/bg4cd/spi.c index 188a6bd483..f9faf9504a 100644 --- a/src/soc/marvell/bg4cd/spi.c +++ b/src/soc/marvell/bg4cd/spi.c @@ -19,3 +19,8 @@ int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { return -1; } + +unsigned int spi_crop_chunk(unsigned int cmd_len, unsigned int buf_len) +{ + return buf_len; +} -- cgit v1.2.3