[U-Boot] [PATCH] common/board_f.c: remove CONFIG_SYS_GENERIC_GLOBAL_DATA

[Thomas Petazzoni]

CONFIG_SYS_GENERIC_GLOBAL_DATA is no longer used by any board or
platform, so support for it can be dropped.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
 README                       |  6 ------
 common/board_f.c             | 27 ---------------------------
 scripts/config_whitelist.txt |  1 -
 3 files changed, 34 deletions(-)

diff --git a/README b/README
index 3fdb89c..15ac00d 100644
--- a/README
+++ b/README
@@ -404,12 +404,6 @@ The following options need to be configured:
 		supported, core will start to execute uboot when wakes up.
 
 - Generic CPU options:
-		CONFIG_SYS_GENERIC_GLOBAL_DATA
-		Defines global data is initialized in generic board board_init_f().
-		If this macro is defined, global data is created and cleared in
-		generic board board_init_f(). Without this macro, architecture/board
-		should initialize global data before calling board_init_f().
-
 		CONFIG_SYS_BIG_ENDIAN, CONFIG_SYS_LITTLE_ENDIAN
 
 		Defines the endianess of the CPU. Implementation of those
diff --git a/common/board_f.c b/common/board_f.c
index 5915e50..37bbf5a 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -211,14 +211,6 @@ static int init_func_spi(void)
 }
 #endif
 
-__maybe_unused
-static int zero_global_data(void)
-{
-	memset((void *)gd, '\0', sizeof(gd_t));
-
-	return 0;
-}
-
 static int setup_mon_len(void)
 {
 #if defined(__ARM__) || defined(__MICROBLAZE__)
@@ -910,25 +902,6 @@ static const init_fnc_t init_sequence_f[] = {
 
 void board_init_f(ulong boot_flags)
 {
-#ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA
-	/*
-	 * For some architectures, global data is initialized and used before
-	 * calling this function. The data should be preserved. For others,
-	 * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack
-	 * here to host global data until relocation.
-	 */
-	gd_t data;
-
-	gd = &data;
-
-	/*
-	 * Clear global data before it is accessed at debug print
-	 * in initcall_run_list. Otherwise the debug print probably
-	 * get the wrong value of gd->have_console.
-	 */
-	zero_global_data();
-#endif
-
 	gd->flags = boot_flags;
 	gd->have_console = 0;
 
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index db28457..2df02d0 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -3341,7 +3341,6 @@ CONFIG_SYS_GBIT_MII_BUSNAME
 CONFIG_SYS_GBL_DATA_OFFSET
 CONFIG_SYS_GBL_DATA_SIZE
 CONFIG_SYS_GENERIC_BOARD
-CONFIG_SYS_GENERIC_GLOBAL_DATA
 CONFIG_SYS_GIC400_ADDR
 CONFIG_SYS_GP1DIR
 CONFIG_SYS_GP1ODR
-- 
2.9.4