i2c, fsl_i2c: switch to new multibus/multiadapter support

[karo-tx-uboot.git] / README

diff --git a/README b/README
index e2ca76e7aedd6cb721bd4540e91e5cf9da0f6971..636107fb78e63664b1008f9e529eea452c6c461e 100644 (file)
--- a/README
+++ b/README
@@ -1968,6 +1968,18 @@ CBFS (Coreboot Filesystem) support
                    CONFIG_SYS_I2C_SOFT_SPEED_4 and CONFIG_SYS_I2C_SOFT_SLAVE_4
                    for defining speed and slave address
 
+               - drivers/i2c/fsl_i2c.c:
+                 - activate i2c driver with CONFIG_SYS_I2C_FSL
+                   define CONFIG_SYS_FSL_I2C_OFFSET for setting the register
+                   offset CONFIG_SYS_FSL_I2C_SPEED for the i2c speed and
+                   CONFIG_SYS_FSL_I2C_SLAVE for the slave addr of the first
+                   bus.
+                  - If your board supports a second fsl i2c bus, define
+                   CONFIG_SYS_FSL_I2C2_OFFSET for the register offset
+                   CONFIG_SYS_FSL_I2C2_SPEED for the speed and
+                   CONFIG_SYS_FSL_I2C2_SLAVE for the slave address of the
+                   second bus.
+
                additional defines:
 
                CONFIG_SYS_NUM_I2C_BUSES
@@ -2213,11 +2225,6 @@ CBFS (Coreboot Filesystem) support
                If not defined, then U-Boot uses predefined value for
                specified DTT device.
 
-               CONFIG_FSL_I2C
-
-               Define this option if you want to use Freescale's I2C driver in
-               drivers/i2c/fsl_i2c.c.
-
                CONFIG_I2C_MUX
 
                Define this option if you have I2C devices reached over 1 .. n