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i2c: rcar_i2c: Setup SCL/SDA delay at rcar_i2c_set_speed

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Setting up the delay only needs to be done once; move it to
rcar_i2c_set_speed so it's done at initialization time.

Signed-off-by: Ismael Luceno <ismael.luceno@silicon-gears.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Ismael Luceno Cortes 2019-03-07 18:00:49 +00:00 • committed by Heiko Schocher
parent bc00512438
commit 4fcff08c4b
1 changed files with 6 additions and 3 deletions
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9
drivers/i2c/rcar_i2c.c
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@ -116,9 +116,7 @@ static int rcar_i2c_set_addr(struct udevice *dev, u8 chip, u8 read)
writel(0, priv->base + RCAR_I2C_ICMSR); writel(0, priv->base + RCAR_I2C_ICMSR);
writel(priv->icccr, priv->base + RCAR_I2C_ICCCR); writel(priv->icccr, priv->base + RCAR_I2C_ICCCR);
if (priv->type == RCAR_I2C_TYPE_GEN3) /* Wait for the bus */
writel(RCAR_I2C_ICFBSCR_TCYC17, priv->base + RCAR_I2C_ICFBSCR);
ret = wait_for_bit_le32(priv->base + RCAR_I2C_ICMCR, ret = wait_for_bit_le32(priv->base + RCAR_I2C_ICMCR,
RCAR_I2C_ICMCR_FSDA, false, 2, true); RCAR_I2C_ICMCR_FSDA, false, 2, true);
if (ret) { if (ret) {
@ -304,6 +302,11 @@ scgd_find:
priv->icccr = (scgd << RCAR_I2C_ICCCR_SCGD_OFF) | cdf; priv->icccr = (scgd << RCAR_I2C_ICCCR_SCGD_OFF) | cdf;
writel(priv->icccr, priv->base + RCAR_I2C_ICCCR); writel(priv->icccr, priv->base + RCAR_I2C_ICCCR);
if (priv->type == RCAR_I2C_TYPE_GEN3) {
/* Set SCL/SDA delay */
writel(RCAR_I2C_ICFBSCR_TCYC17, priv->base + RCAR_I2C_ICFBSCR);
}
return 0; return 0;
} }