m68k: powerpc: Clean up do_mdm_init

This code seems unnecessarily complex. We really just need to check the
global_data. Now that is it all in one place, and not arch-specific, this
is pretty easy.

Signed-off-by: Simon Glass <sjg@chromium.org>

arch/m68k/lib/board.c

@@ -628,13 +628,6 @@ void board_init_r (gd_t *id, ulong dest_addr)
 	}
 #endif
 
-#ifdef CONFIG_MODEM_SUPPORT
- {
-	 extern int do_mdm_init;
-	 do_mdm_init = gd->do_mdm_init;
- }
-#endif
-
 #ifdef CONFIG_WATCHDOG
 	/* disable watchdog if environment is set */
 	if ((s = getenv ("watchdog")) != NULL) {

arch/powerpc/lib/board.c

@@ -991,14 +991,6 @@ void board_init_r(gd_t *id, ulong dest_addr)
 	kbd_init();
 #endif
 
-#ifdef CONFIG_MODEM_SUPPORT
-	{
-		extern int do_mdm_init;
-
-		do_mdm_init = gd->do_mdm_init;
-	}
-#endif
-
 	/* Initialization complete - start the monitor */
 
 	/* main_loop() can return to retry autoboot, if so just run it again. */

common/board_r.c

@@ -704,17 +704,6 @@ static int initr_kbd(void)
 }
 #endif
 
-#ifdef CONFIG_MODEM_SUPPORT
-static int initr_modem(void)
-{
-	/* TODO: with new initcalls, move this into the driver */
-	extern int do_mdm_init;
-
-	do_mdm_init = gd->do_mdm_init;
-	return 0;
-}
-#endif
-
 static int run_main_loop(void)
 {
 #ifdef CONFIG_SANDBOX
@@ -928,9 +917,6 @@ init_fnc_t init_sequence_r[] = {
 #endif
 #ifdef CONFIG_PS2KBD
 	initr_kbd,
-#endif
-#ifdef CONFIG_MODEM_SUPPORT
-	initr_modem,
 #endif
 	run_main_loop,
 };

common/main.c

@@ -14,17 +14,14 @@
 #include <malloc.h>
 #include <version.h>
 
+DECLARE_GLOBAL_DATA_PTR;
+
 /*
  * Board-specific Platform code can reimplement show_boot_progress () if needed
  */
 void inline __show_boot_progress (int val) {}
 void show_boot_progress (int val) __attribute__((weak, alias("__show_boot_progress")));
 
-#ifdef CONFIG_MODEM_SUPPORT
-int do_mdm_init = 0;
-extern void mdm_init(void); /* defined in board.c */
-#endif
-
 void main_loop(void)
 {
 #ifdef CONFIG_PREBOOT
@@ -40,8 +37,8 @@ void main_loop(void)
 #endif
 
 #ifdef CONFIG_MODEM_SUPPORT
-	debug("DEBUG: main_loop:   do_mdm_init=%d\n", do_mdm_init);
-	if (do_mdm_init) {
+	debug("DEBUG: main_loop:   gd->do_mdm_init=%lu\n", gd->do_mdm_init);
+	if (gd->do_mdm_init) {
 		char *str = strdup(getenv("mdm_cmd"));
 		setenv("preboot", str);  /* set or delete definition */
 		if (str != NULL)

include/common.h

@@ -299,6 +299,7 @@ extern ulong monitor_flash_len;
 int mac_read_from_eeprom(void);
 extern u8 __dtb_dt_begin[];	/* embedded device tree blob */
 int set_cpu_clk_info(void);
+int mdm_init(void);
 #if defined(CONFIG_DISPLAY_CPUINFO)
 int print_cpuinfo(void);
 #else