i2c: Rename CONFIG_SYS_I2C to CONFIG_SYS_I2C_LEGACY
It is quite confusing that CONFIG_SYS_I2C selects the legacy I2C and
CONFIG_DM_I2C selects the current I2C. The deadline to migrate I2C is less
than a year away.
Also we want to have a CONFIG_I2C for U-Boot proper just like we have
CONFIG_SPL_I2C for SPL, so we can simplify the Makefile rules.
Rename this symbol so it is clear it is going away.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
diff --git a/include/configs/ls1021atsn.h b/include/configs/ls1021atsn.h
index f76d5a1..58c2d97 100644
--- a/include/configs/ls1021atsn.h
+++ b/include/configs/ls1021atsn.h
@@ -105,7 +105,7 @@
/* I2C */
#if !CONFIG_IS_ENABLED(DM_I2C)
-#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_LEGACY
#else
#define CONFIG_I2C_SET_DEFAULT_BUS_NUM
#define CONFIG_I2C_DEFAULT_BUS_NUMBER 0