From d01ee4db9302cfccaa5c548a1c4e873b415681a0 Mon Sep 17 00:00:00 2001 From: Joakim Tjernlund Date: Thu, 17 Sep 2009 11:07:16 +0200 Subject: [PATCH] fsl_i2c: Add CONFIG_FSL_I2C_CUSTOM_{DFSR/FDR} Some boards need a higher DFSR value than the spec currently recommends so give these boards the means to define there own. For completeness, add CONFIG_FSL_I2C_CUSTOM_FDR too. Signed-off-by: Joakim Tjernlund --- drivers/i2c/fsl_i2c.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/fsl_i2c.c b/drivers/i2c/fsl_i2c.c index 56f9680..0c5f6be 100644 --- a/drivers/i2c/fsl_i2c.c +++ b/drivers/i2c/fsl_i2c.c @@ -172,14 +172,22 @@ static unsigned int set_i2c_bus_speed(const struct fsl_i2c *dev, u8 fdr; #ifdef __PPC__ u8 dfsr; +#ifdef CONFIG_FSL_I2C_CUSTOM_DFSR + dfsr = CONFIG_FSL_I2C_CUSTOM_DFSR; +#else dfsr = fsl_i2c_speed_map[i].dfsr; #endif + writeb(dfsr, &dev->dfsrr); /* set default filter */ +#endif +#ifdef CONFIG_FSL_I2C_CUSTOM_FDR + fdr = CONFIG_FSL_I2C_CUSTOM_FDR; + speed = i2c_clk / divider; /* Fake something */ +#else fdr = fsl_i2c_speed_map[i].fdr; speed = i2c_clk / fsl_i2c_speed_map[i].divider; - writeb(fdr, &dev->fdr); /* set bus speed */ -#ifdef __PPC__ - writeb(dfsr, &dev->dfsrr); /* set default filter */ #endif + writeb(fdr, &dev->fdr); /* set bus speed */ + break; }