From: Lennert Buytenhek <[EMAIL PROTECTED]>
The patch below adds support to orion_spi for the 88F6183 ARM SoC
by adding code to work around a 6183-specific erratum.
Signed-off-by: Lennert Buytenhek <[EMAIL PROTECTED]>
Signed-off-by: David Brownell <[EMAIL PROTECTED]>
---
this is for the 2.6.28-rc0 merge window ...
drivers/spi/orion_spi.c | 5 +++++
include/linux/spi/orion_spi.h | 1 +
2 files changed, 6 insertions(+)
--- a/drivers/spi/orion_spi.c
+++ b/drivers/spi/orion_spi.c
@@ -364,6 +364,11 @@ static int orion_spi_setup(struct spi_de
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)
spi->bits_per_word = 8;
--- a/include/linux/spi/orion_spi.h
+++ b/include/linux/spi/orion_spi.h
@@ -11,6 +11,7 @@
struct orion_spi_info {
u32 tclk; /* no <linux/clk.h> support yet */
+ u32 enable_clock_fix;
};
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