diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/i2c/busses/i2c-uniphier-f.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/i2c/busses/i2c-uniphier-f.c b/drivers/i2c/busses/i2c-uniphier-f.c index 2886685..829df91 100644 --- a/drivers/i2c/busses/i2c-uniphier-f.c +++ b/drivers/i2c/busses/i2c-uniphier-f.c @@ -458,16 +458,20 @@ static struct i2c_bus_recovery_info uniphier_fi2c_bus_recovery_info = { static void uniphier_fi2c_hw_init(struct uniphier_fi2c_priv *priv, u32 bus_speed, unsigned long clk_rate) { - u32 clk_count; + u32 tmp; + + tmp = readl(priv->membase + UNIPHIER_FI2C_CR); + tmp |= UNIPHIER_FI2C_CR_MST; + writel(tmp, priv->membase + UNIPHIER_FI2C_CR); uniphier_fi2c_reset(priv); - clk_count = clk_rate / bus_speed; + tmp = clk_rate / bus_speed; - writel(clk_count, priv->membase + UNIPHIER_FI2C_CYC); - writel(clk_count / 2, priv->membase + UNIPHIER_FI2C_LCTL); - writel(clk_count / 2, priv->membase + UNIPHIER_FI2C_SSUT); - writel(clk_count / 16, priv->membase + UNIPHIER_FI2C_DSUT); + writel(tmp, priv->membase + UNIPHIER_FI2C_CYC); + writel(tmp / 2, priv->membase + UNIPHIER_FI2C_LCTL); + writel(tmp / 2, priv->membase + UNIPHIER_FI2C_SSUT); + writel(tmp / 16, priv->membase + UNIPHIER_FI2C_DSUT); uniphier_fi2c_prepare_operation(priv); } |