This delay applies to any data transfer on I2C bus.
For example 1kB data read with per-byte access (which happens if environment is stored in I2C EEPROM) takes more than 10 seconds.
Moreover data bus driver has to care about bus state and data transfer, but not about internal states of attached devices.
Signed-off-by: Alexey Brodkin abrodkin@synopsys.com
Cc: Tom Rini trini@ti.com cc: Armando Visconti armando.visconti@st.com Cc: Stefan Roese sr@denx.de Cc: Albert ARIBAUD albert.u.boot@aribaud.net Cc: Heiko Schocher hs@denx.de Cc: Vipin KUMAR vipin.kumar@st.com Cc: Tom Rix Tom.Rix@windriver.com Cc: Mischa Jonker mjonker@synopsys.com --- drivers/i2c/designware_i2c.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/drivers/i2c/designware_i2c.c b/drivers/i2c/designware_i2c.c index c5c6015..cb2ac04 100644 --- a/drivers/i2c/designware_i2c.c +++ b/drivers/i2c/designware_i2c.c @@ -249,9 +249,6 @@ static int i2c_xfer_finish(void)
i2c_flush_rxfifo();
- /* Wait for read/write operation to complete on actual memory */ - udelay(10000); - return 0; }