[U-Boot] [PATCH 1/2] arm/km: speed up i2c access for keymile boards

[Holger Brunck]

We don't need 3us delay for our i2c bus. Decrease it to 1us.
It would also be possible to use 100ns in the future, but
currently kirkwood has no ndelay implementation.

Signed-off-by: Holger Brunck <holger.brunck at keymile.com>
Cc: Valentin Longchamp <valentin.longchamp at keymile.com>
Cc: Prafulla Wadaskar <prafulla at marvell.com>
Cc: Heiko Schocher <hs at denx.de>
---
 include/configs/km/km_arm.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/configs/km/km_arm.h b/include/configs/km/km_arm.h
index 700124c..ca84932 100644
--- a/include/configs/km/km_arm.h
+++ b/include/configs/km/km_arm.h
@@ -195,7 +195,7 @@ int get_scl(void);
 #define I2C_SCL(bit)	kw_gpio_set_value(KM_KIRKWOOD_SCL_PIN, bit)
 #endif
 
-#define I2C_DELAY	udelay(3)	/* 1/4 I2C clock duration */
+#define I2C_DELAY	udelay(1)
 #define I2C_SOFT_DECLARATIONS
 
 #endif
-- 
1.7.1