The SOM has external pull-up resistors, so let's turn these off. It was helping reduce some errors when running I2C1 @ 2.6MHz.
Signed-off-by: Adam Ford aford173@gmail.com
diff --git a/board/logicpd/omap3som/omap3logic.h b/board/logicpd/omap3som/omap3logic.h index 22d7760..7376119 100644 --- a/board/logicpd/omap3som/omap3logic.h +++ b/board/logicpd/omap3som/omap3logic.h @@ -229,17 +229,17 @@ void set_muxconf_regs(void) MUX_VAL(CP(HSUSB0_DATA6), (IEN | PTD | DIS | M0)); /*HSUSB0_DATA6*/ MUX_VAL(CP(HSUSB0_DATA7), (IEN | PTD | DIS | M0)); /*HSUSB0_DATA7*/
- MUX_VAL(CP(I2C1_SCL), (IEN | PTU | EN | M0)); /*I2C1_SCL*/ - MUX_VAL(CP(I2C1_SDA), (IEN | PTU | EN | M0)); /*I2C1_SDA*/ + MUX_VAL(CP(I2C1_SCL), (IEN | EN | M0)); /*I2C1_SCL*/ + MUX_VAL(CP(I2C1_SDA), (IEN | EN | M0)); /*I2C1_SDA*/
- MUX_VAL(CP(I2C2_SCL), (IEN | PTU | EN | M0)); /*I2C2_SCL*/ - MUX_VAL(CP(I2C2_SDA), (IEN | PTU | EN | M0)); /*I2C2_SDA*/ + MUX_VAL(CP(I2C2_SCL), (IEN | EN | M0)); /*I2C2_SCL*/ + MUX_VAL(CP(I2C2_SDA), (IEN | EN | M0)); /*I2C2_SDA*/
- MUX_VAL(CP(I2C3_SCL), (IEN | PTU | EN | M0)); /*I2C3_SCL*/ - MUX_VAL(CP(I2C3_SDA), (IEN | PTU | EN | M0)); /*I2C3_SDA*/ + MUX_VAL(CP(I2C3_SCL), (IEN | EN | M0)); /*I2C3_SCL*/ + MUX_VAL(CP(I2C3_SDA), (IEN | EN | M0)); /*I2C3_SDA*/
- MUX_VAL(CP(I2C4_SCL), (IEN | PTU | EN | M0)); /*I2C4_SCL*/ - MUX_VAL(CP(I2C4_SDA), (IEN | PTU | EN | M0)); /*I2C4_SDA*/ + MUX_VAL(CP(I2C4_SCL), (IEN | EN | M0)); /*I2C4_SCL*/ + MUX_VAL(CP(I2C4_SDA), (IEN | EN | M0)); /*I2C4_SDA*/
MUX_VAL(CP(HDQ_SIO), (IEN | PTU | EN | M0)); /*HDQ_SIO*/