From 4fcff08c4b4fe4e8e0e000fd2c2d97b8dec68d35 Mon Sep 17 00:00:00 2001
From: Ismael Luceno Cortes <ismael.luceno@silicon-gears.com>
Date: Thu, 7 Mar 2019 18:00:49 +0000
Subject: [PATCH] i2c: rcar_i2c: Setup SCL/SDA delay at rcar_i2c_set_speed
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>
---
drivers/i2c/rcar_i2c.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/i2c/rcar_i2c.c b/drivers/i2c/rcar_i2c.c
index 10b0f8bad4..a57f72a228 100644
--- a/drivers/i2c/rcar_i2c.c
+++ b/drivers/i2c/rcar_i2c.c
@@ -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(priv->icccr, priv->base + RCAR_I2C_ICCCR);
- if (priv->type == RCAR_I2C_TYPE_GEN3)
- writel(RCAR_I2C_ICFBSCR_TCYC17, priv->base + RCAR_I2C_ICFBSCR);
-
+ /* Wait for the bus */
ret = wait_for_bit_le32(priv->base + RCAR_I2C_ICMCR,
RCAR_I2C_ICMCR_FSDA, false, 2, true);
if (ret) {
@@ -304,6 +302,11 @@ scgd_find:
priv->icccr = (scgd << RCAR_I2C_ICCCR_SCGD_OFF) | cdf;
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;
}
--
2.39.5