[U-Boot] [PATCH 1/4] blackfin: the sclk MHz in i2c driver should be divided by 1000 other than 1024

Sonic Zhang sonic.adi at gmail.com
Tue Jan 28 06:53:33 CET 2014


From: Sonic Zhang <sonic.zhang at analog.com>

Signed-off-by: Sonic Zhang <sonic.zhang at analog.com>
---
 drivers/i2c/bfin-twi_i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/bfin-twi_i2c.c b/drivers/i2c/bfin-twi_i2c.c
index b3a04d3..5c37280 100644
--- a/drivers/i2c/bfin-twi_i2c.c
+++ b/drivers/i2c/bfin-twi_i2c.c
@@ -274,7 +274,7 @@ unsigned int i2c_get_bus_speed(void)
  */
 void i2c_init(int speed, int slaveaddr)
 {
-	uint8_t prescale = ((get_sclk() / 1024 / 1024 + 5) / 10) & 0x7F;
+	uint8_t prescale = ((get_sclk() / 1000 / 1000 + 5) / 10) & 0x7F;
 
 	/* Set TWI internal clock as 10MHz */
 	twi->control = prescale;
-- 
1.8.2.3




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