Commit 2bec19fe authored by Lennert Buytenhek's avatar Lennert Buytenhek Committed by Linus Torvalds

orion_spi: handle 88F6183 erratum

Add support to orion_spi for the 88F6183 ARM SoC by adding code to work
around a 6183-specific erratum.
Signed-off-by: default avatarLennert Buytenhek <buytenh@marvell.com>
Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f1f640a9
...@@ -364,6 +364,11 @@ static int orion_spi_setup(struct spi_device *spi) ...@@ -364,6 +364,11 @@ static int orion_spi_setup(struct spi_device *spi)
return -EINVAL; return -EINVAL;
} }
/* Fix ac timing if required. */
if (orion_spi->spi_info->enable_clock_fix)
orion_spi_setbits(orion_spi, ORION_SPI_IF_CONFIG_REG,
(1 << 14));
if (spi->bits_per_word == 0) if (spi->bits_per_word == 0)
spi->bits_per_word = 8; spi->bits_per_word = 8;
......
...@@ -11,6 +11,7 @@ ...@@ -11,6 +11,7 @@
struct orion_spi_info { struct orion_spi_info {
u32 tclk; /* no <linux/clk.h> support yet */ u32 tclk; /* no <linux/clk.h> support yet */
u32 enable_clock_fix;
}; };
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment