common: board_r: Drop initr_api wrapper

Add a return value to api_init and use it directly in the
post-relocation init sequence, rather than using a wrapper stub.

Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

api/api.c

@@ -642,7 +642,7 @@ int syscall(int call, int *retval, ...)
 	return 1;
 }
 
-void api_init(void)
+int api_init(void)
 {
 	struct api_signature *sig;
 
@@ -679,7 +679,7 @@ void api_init(void)
 	sig = malloc(sizeof(struct api_signature));
 	if (sig == NULL) {
 		printf("API: could not allocate memory for the signature!\n");
-		return;
+		return -ENOMEM;
 	}
 
 	env_set_hex("api_address", (unsigned long)sig);
@@ -691,6 +691,8 @@ void api_init(void)
 	sig->checksum = crc32(0, (unsigned char *)sig,
 			      sizeof(struct api_signature));
 	debugf("syscall entry: 0x%lX\n", (unsigned long)sig->syscall);
+
+	return 0;
 }
 
 void platform_set_mr(struct sys_info *si, unsigned long start, unsigned long size,

api/api_private.h

@@ -8,7 +8,7 @@
 #ifndef _API_PRIVATE_H_
 #define _API_PRIVATE_H_
 
-void	api_init(void);
+int	api_init(void);
 void	platform_set_mr(struct sys_info *, unsigned long, unsigned long, int);
 int	platform_sys_info(struct sys_info *);
 

common/board_r.c

@@ -490,15 +490,6 @@ static int initr_malloc_bootparams(void)
 }
 #endif
 
-#if defined(CONFIG_API)
-static int initr_api(void)
-{
-	/* Initialize API */
-	api_init();
-	return 0;
-}
-#endif
-
 #ifdef CONFIG_CMD_NET
 static int initr_ethaddr(void)
 {
@@ -753,7 +744,7 @@ static init_fnc_t init_sequence_r[] = {
 	stdio_add_devices,
 	jumptable_init,
 #ifdef CONFIG_API
-	initr_api,
+	api_init,
 #endif
 	console_init_r,		/* fully init console as a device */
 #ifdef CONFIG_DISPLAY_BOARDINFO_LATE

include/api.h

@@ -7,6 +7,14 @@
 #ifndef __API_H
 #define __API_H
 
-void api_init(void);
+/**
+ * api_init() - Initialize API for external applications
+ *
+ * Initialize API for external (standalone) applications running on top of
+ * U-Boot. It is called during the generic post-relocation init sequence.
+ *
+ * Return: 0 if OK
+ */
+int api_init(void);
 
 #endif