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/board/Arcturus/ucp1020/spl.c b/board/Arcturus/ucp1020/spl.c
index 437e975..f7c4960 100644
--- a/board/Arcturus/ucp1020/spl.c
+++ b/board/Arcturus/ucp1020/spl.c
@@ -106,7 +106,7 @@
 	env_relocate();
 #endif
 
-#ifdef CONFIG_SYS_I2C
+#ifdef CONFIG_SYS_I2C_LEGACY
 	i2c_init_all();
 #else
 	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
diff --git a/board/compulab/common/Makefile b/board/compulab/common/Makefile
index 7ba92f5..842fb3b 100644
--- a/board/compulab/common/Makefile
+++ b/board/compulab/common/Makefile
@@ -5,6 +5,6 @@
 # Author: Igor Grinberg <grinberg@compulab.co.il>
 
 obj-y				+= common.o
-obj-$(CONFIG_SYS_I2C)		+= eeprom.o
+obj-$(CONFIG_SYS_I2C_LEGACY)		+= eeprom.o
 obj-$(CONFIG_LCD)		+= omap3_display.o
 obj-$(CONFIG_SMC911X)		+= omap3_smc911x.o
diff --git a/board/compulab/common/eeprom.h b/board/compulab/common/eeprom.h
index a9c0203..51c8acf 100644
--- a/board/compulab/common/eeprom.h
+++ b/board/compulab/common/eeprom.h
@@ -10,7 +10,7 @@
 #define _EEPROM_
 #include <errno.h>
 
-#ifdef CONFIG_SYS_I2C
+#ifdef CONFIG_SYS_I2C_LEGACY
 int cl_eeprom_read_mac_addr(uchar *buf, uint eeprom_bus);
 u32 cl_eeprom_get_board_rev(uint eeprom_bus);
 int cl_eeprom_get_product_name(uchar *buf, uint eeprom_bus);
diff --git a/board/freescale/p1_p2_rdb_pc/spl.c b/board/freescale/p1_p2_rdb_pc/spl.c
index 010f463..90188b0 100644
--- a/board/freescale/p1_p2_rdb_pc/spl.c
+++ b/board/freescale/p1_p2_rdb_pc/spl.c
@@ -99,7 +99,7 @@
 	env_relocate();
 #endif
 
-#ifdef CONFIG_SYS_I2C
+#ifdef CONFIG_SYS_I2C_LEGACY
 	i2c_init_all();
 #else
 	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
diff --git a/board/renesas/draak/draak.c b/board/renesas/draak/draak.c
index 1d76f95..0aaae81 100644
--- a/board/renesas/draak/draak.c
+++ b/board/renesas/draak/draak.c
@@ -38,7 +38,7 @@
 
 int board_early_init_f(void)
 {
-#if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH)
+#if defined(CONFIG_SYS_I2C_LEGACY) && defined(CONFIG_SYS_I2C_SH)
 	/* DVFS for reset */
 	mstp_clrbits_le32(SMSTPCR9, SMSTPCR9, DVFS_MSTP926);
 #endif
diff --git a/board/renesas/salvator-x/salvator-x.c b/board/renesas/salvator-x/salvator-x.c
index 071076a..1802547 100644
--- a/board/renesas/salvator-x/salvator-x.c
+++ b/board/renesas/salvator-x/salvator-x.c
@@ -37,7 +37,7 @@
 
 int board_early_init_f(void)
 {
-#if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH)
+#if defined(CONFIG_SYS_I2C_LEGACY) && defined(CONFIG_SYS_I2C_SH)
 	/* DVFS for reset */
 	mstp_clrbits_le32(SMSTPCR9, SMSTPCR9, DVFS_MSTP926);
 #endif
@@ -78,7 +78,7 @@
 
 void reset_cpu(void)
 {
-#if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH)
+#if defined(CONFIG_SYS_I2C_LEGACY) && defined(CONFIG_SYS_I2C_SH)
 	i2c_reg_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x20, 0x80);
 #else
 	/* only CA57 ? */
diff --git a/board/renesas/ulcb/ulcb.c b/board/renesas/ulcb/ulcb.c
index 7ba1948..ffc4eb9 100644
--- a/board/renesas/ulcb/ulcb.c
+++ b/board/renesas/ulcb/ulcb.c
@@ -35,7 +35,7 @@
 
 int board_early_init_f(void)
 {
-#if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH)
+#if defined(CONFIG_SYS_I2C_LEGACY) && defined(CONFIG_SYS_I2C_SH)
 	/* DVFS for reset */
 	mstp_clrbits_le32(SMSTPCR9, SMSTPCR9, DVFS_MSTP926);
 #endif
diff --git a/board/somlabs/visionsom-6ull/visionsom-6ull.c b/board/somlabs/visionsom-6ull/visionsom-6ull.c
index 076c641..c26e7b0 100644
--- a/board/somlabs/visionsom-6ull/visionsom-6ull.c
+++ b/board/somlabs/visionsom-6ull/visionsom-6ull.c
@@ -104,7 +104,7 @@
 	/* Address of boot parameters */
 	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 
-#ifdef CONFIG_SYS_I2C
+#ifdef CONFIG_SYS_I2C_LEGACY
 	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
 #endif
 
diff --git a/board/tqc/tqma6/tqma6.c b/board/tqc/tqma6/tqma6.c
index 26d557c..4f86a92 100644
--- a/board/tqc/tqma6/tqma6.c
+++ b/board/tqc/tqma6/tqma6.c
@@ -171,7 +171,7 @@
 #endif
 #endif
 
-#ifdef CONFIG_SYS_I2C
+#ifdef CONFIG_SYS_I2C_LEGACY
 static struct i2c_pads_info tqma6_i2c3_pads = {
 	/* I2C3: on board LM75, M24C64,  */
 	.scl = {
@@ -216,7 +216,7 @@
 #ifndef CONFIG_DM_SPI
 	tqma6_iomuxc_spi();
 #endif
-#ifdef CONFIG_SYS_I2C
+#ifdef CONFIG_SYS_I2C_LEGACY
 	tqma6_setup_i2c();
 #endif