From 9baa31ab092c90d5c5149e02a2edb7073df7bccf Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Sun, 11 Aug 2024 08:50:37 -0600
Subject: [PATCH] rtc: Drop CFG_SYS_RTC_BUS_NUM

This option is very old and the migration deadline was years ago. Drop
it so that the I2C system can be simplified.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
---
 README                        | 5 -----
 cmd/date.c                    | 6 ------
 include/configs/ls1028aqds.h  | 1 -
 include/configs/ls1028ardb.h  | 2 --
 include/configs/ls1046afrwy.h | 1 -
 include/configs/lx2160aqds.h  | 3 ---
 include/configs/lx2160ardb.h  | 3 ---
 include/configs/lx2162aqds.h  | 3 ---
 include/configs/m53menlo.h    | 2 --
 include/configs/tqma6_wru4.h  | 1 -
 include/i2c.h                 | 5 -----
 11 files changed, 32 deletions(-)

diff --git a/README b/README
index c3821c5ce4..37c959cc9c 100644
--- a/README
+++ b/README
@@ -893,11 +893,6 @@ The following options need to be configured:
 
 		will skip addresses 0x50 and 0x68 on a board with one I2C bus
 
-		CFG_SYS_RTC_BUS_NUM
-
-		If defined, then this indicates the I2C bus number for the RTC.
-		If not defined, then U-Boot assumes that RTC is on I2C bus 0.
-
 		CONFIG_SOFT_I2C_READ_REPEATED_START
 
 		defining this will force the i2c_read() function in
diff --git a/cmd/date.c b/cmd/date.c
index 755adec1e7..bdb3e199b4 100644
--- a/cmd/date.c
+++ b/cmd/date.c
@@ -42,12 +42,6 @@ static int do_date(struct cmd_tbl *cmdtp, int flag, int argc,
 			return CMD_RET_FAILURE;
 		}
 	}
-#elif CONFIG_IS_ENABLED(SYS_I2C_LEGACY)
-	old_bus = i2c_get_bus_num();
-	i2c_set_bus_num(CFG_SYS_RTC_BUS_NUM);
-#else
-	old_bus = I2C_GET_BUS();
-	I2C_SET_BUS(CFG_SYS_RTC_BUS_NUM);
 #endif
 
 	switch (argc) {
diff --git a/include/configs/ls1028aqds.h b/include/configs/ls1028aqds.h
index 769ece901c..ed93b51d80 100644
--- a/include/configs/ls1028aqds.h
+++ b/include/configs/ls1028aqds.h
@@ -47,7 +47,6 @@
 #endif
 
 /* RTC */
-#define CFG_SYS_RTC_BUS_NUM         1
 #define I2C_MUX_CH_RTC                 0xB
 
 /* Store environment at top of flash */
diff --git a/include/configs/ls1028ardb.h b/include/configs/ls1028ardb.h
index 0f591e3c4a..d44ce45fd6 100644
--- a/include/configs/ls1028ardb.h
+++ b/include/configs/ls1028ardb.h
@@ -10,8 +10,6 @@
 
 #define COUNTER_FREQUENCY_REAL		(get_board_sys_clk() / 4)
 
-#define CFG_SYS_RTC_BUS_NUM         0
-
 /* Store environment at top of flash */
 
 /*
diff --git a/include/configs/ls1046afrwy.h b/include/configs/ls1046afrwy.h
index 5e03a962d1..21804fc665 100644
--- a/include/configs/ls1046afrwy.h
+++ b/include/configs/ls1046afrwy.h
@@ -66,7 +66,6 @@
 
 /* RTC */
 #define CFG_SYS_I2C_RTC_ADDR		0x51  /* Channel 0 I2C bus 0*/
-#define CFG_SYS_RTC_BUS_NUM			0
 
 /*
  * Environment
diff --git a/include/configs/lx2160aqds.h b/include/configs/lx2160aqds.h
index 3a316e7330..5b397e23d8 100644
--- a/include/configs/lx2160aqds.h
+++ b/include/configs/lx2160aqds.h
@@ -8,9 +8,6 @@
 
 #include "lx2160a_common.h"
 
-/* RTC */
-#define CFG_SYS_RTC_BUS_NUM		0
-
 /* MAC/PHY configuration */
 
 /* Initial environment variables */
diff --git a/include/configs/lx2160ardb.h b/include/configs/lx2160ardb.h
index 6404b35911..e700a7b113 100644
--- a/include/configs/lx2160ardb.h
+++ b/include/configs/lx2160ardb.h
@@ -8,9 +8,6 @@
 
 #include "lx2160a_common.h"
 
-/* RTC */
-#define CFG_SYS_RTC_BUS_NUM		4
-
 #if defined(CONFIG_FSL_MC_ENET)
 #define AQR113C_PHY_ADDR1		0x0
 #define AQR113C_PHY_ADDR2		0x08
diff --git a/include/configs/lx2162aqds.h b/include/configs/lx2162aqds.h
index 54d7cea4c5..2d0db47b33 100644
--- a/include/configs/lx2162aqds.h
+++ b/include/configs/lx2162aqds.h
@@ -10,9 +10,6 @@
 
 /* USB */
 
-/* RTC */
-#define CFG_SYS_RTC_BUS_NUM		0
-
 /* Initial environment variables */
 #define CFG_EXTRA_ENV_SETTINGS		\
 	EXTRA_ENV_SETTINGS			\
diff --git a/include/configs/m53menlo.h b/include/configs/m53menlo.h
index 9cf46b2c36..c245cbe427 100644
--- a/include/configs/m53menlo.h
+++ b/include/configs/m53menlo.h
@@ -57,8 +57,6 @@
 #define CFG_FEC_MXC_PHYADDR		0x0
 #endif
 
-#define CFG_SYS_RTC_BUS_NUM		1 /* I2C2 */
-
 /*
  * RTC
  */
diff --git a/include/configs/tqma6_wru4.h b/include/configs/tqma6_wru4.h
index e06fc7fe15..5e21463305 100644
--- a/include/configs/tqma6_wru4.h
+++ b/include/configs/tqma6_wru4.h
@@ -16,7 +16,6 @@
 /* Watchdog */
 
 /* Config on-board RTC */
-#define CFG_SYS_RTC_BUS_NUM		2
 #define CFG_SYS_I2C_RTC_ADDR		0x68
 /* Turn off RTC square-wave output to save battery */
 
diff --git a/include/i2c.h b/include/i2c.h
index 622540c826..45ca3d63e3 100644
--- a/include/i2c.h
+++ b/include/i2c.h
@@ -655,11 +655,6 @@ void i2c_early_init_f(void);
 #undef CFG_SYS_I2C_DIRECT_BUS
 #endif
 
-/* define the I2C bus number for RTC and DTT if not already done */
-#if !defined(CFG_SYS_RTC_BUS_NUM)
-#define CFG_SYS_RTC_BUS_NUM		0
-#endif
-
 struct i2c_adapter {
 	void		(*init)(struct i2c_adapter *adap, int speed,
 				int slaveaddr);
-- 
2.39.5